Initial checkin of asyncio package (== Tulip, == PEP 3156).
This commit is contained in:
Guido van Rossum
parent
5b37f97ea5
commit
27b7c7ebf1
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"""The asyncio package, tracking PEP 3156."""
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import sys
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# The selectors module is in the stdlib in Python 3.4 but not in 3.3.
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# Do this first, so the other submodules can use "from . import selectors".
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try:
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import selectors # Will also be exported.
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except ImportError:
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from . import selectors
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# This relies on each of the submodules having an __all__ variable.
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from .futures import *
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from .events import *
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from .locks import *
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from .transports import *
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from .protocols import *
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from .streams import *
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from .tasks import *
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if sys.platform == 'win32': # pragma: no cover
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from .windows_events import *
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else:
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from .unix_events import * # pragma: no cover
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__all__ = (futures.__all__ +
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events.__all__ +
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locks.__all__ +
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transports.__all__ +
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protocols.__all__ +
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streams.__all__ +
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tasks.__all__)
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"""Base implementation of event loop.
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The event loop can be broken up into a multiplexer (the part
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responsible for notifying us of IO events) and the event loop proper,
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which wraps a multiplexer with functionality for scheduling callbacks,
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immediately or at a given time in the future.
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Whenever a public API takes a callback, subsequent positional
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arguments will be passed to the callback if/when it is called. This
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avoids the proliferation of trivial lambdas implementing closures.
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Keyword arguments for the callback are not supported; this is a
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conscious design decision, leaving the door open for keyword arguments
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to modify the meaning of the API call itself.
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"""
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import collections
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import concurrent.futures
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import heapq
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import logging
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import socket
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import subprocess
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import time
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import os
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import sys
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from . import events
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from . import futures
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from . import tasks
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from .log import asyncio_log
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__all__ = ['BaseEventLoop', 'Server']
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# Argument for default thread pool executor creation.
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_MAX_WORKERS = 5
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class _StopError(BaseException):
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"""Raised to stop the event loop."""
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def _raise_stop_error(*args):
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raise _StopError
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class Server(events.AbstractServer):
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def __init__(self, loop, sockets):
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self.loop = loop
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self.sockets = sockets
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self.active_count = 0
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self.waiters = []
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def attach(self, transport):
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assert self.sockets is not None
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self.active_count += 1
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def detach(self, transport):
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assert self.active_count > 0
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self.active_count -= 1
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if self.active_count == 0 and self.sockets is None:
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self._wakeup()
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def close(self):
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sockets = self.sockets
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if sockets is not None:
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self.sockets = None
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for sock in sockets:
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self.loop._stop_serving(sock)
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if self.active_count == 0:
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self._wakeup()
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def _wakeup(self):
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waiters = self.waiters
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self.waiters = None
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for waiter in waiters:
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if not waiter.done():
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waiter.set_result(waiter)
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@tasks.coroutine
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def wait_closed(self):
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if self.sockets is None or self.waiters is None:
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return
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waiter = futures.Future(loop=self.loop)
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self.waiters.append(waiter)
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yield from waiter
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class BaseEventLoop(events.AbstractEventLoop):
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def __init__(self):
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self._ready = collections.deque()
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self._scheduled = []
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self._default_executor = None
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self._internal_fds = 0
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self._running = False
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def _make_socket_transport(self, sock, protocol, waiter=None, *,
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extra=None, server=None):
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"""Create socket transport."""
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raise NotImplementedError
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def _make_ssl_transport(self, rawsock, protocol, sslcontext, waiter, *,
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server_side=False, server_hostname=None,
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extra=None, server=None):
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"""Create SSL transport."""
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raise NotImplementedError
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def _make_datagram_transport(self, sock, protocol,
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address=None, extra=None):
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"""Create datagram transport."""
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raise NotImplementedError
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def _make_read_pipe_transport(self, pipe, protocol, waiter=None,
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extra=None):
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"""Create read pipe transport."""
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raise NotImplementedError
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def _make_write_pipe_transport(self, pipe, protocol, waiter=None,
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extra=None):
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"""Create write pipe transport."""
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raise NotImplementedError
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@tasks.coroutine
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def _make_subprocess_transport(self, protocol, args, shell,
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stdin, stdout, stderr, bufsize,
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extra=None, **kwargs):
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"""Create subprocess transport."""
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raise NotImplementedError
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def _read_from_self(self):
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"""XXX"""
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raise NotImplementedError
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def _write_to_self(self):
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"""XXX"""
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raise NotImplementedError
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def _process_events(self, event_list):
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"""Process selector events."""
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raise NotImplementedError
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def run_forever(self):
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"""Run until stop() is called."""
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if self._running:
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raise RuntimeError('Event loop is running.')
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self._running = True
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try:
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while True:
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try:
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self._run_once()
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except _StopError:
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break
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finally:
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self._running = False
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def run_until_complete(self, future):
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"""Run until the Future is done.
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If the argument is a coroutine, it is wrapped in a Task.
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XXX TBD: It would be disastrous to call run_until_complete()
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with the same coroutine twice -- it would wrap it in two
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different Tasks and that can't be good.
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Return the Future's result, or raise its exception.
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"""
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future = tasks.async(future, loop=self)
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future.add_done_callback(_raise_stop_error)
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self.run_forever()
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future.remove_done_callback(_raise_stop_error)
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if not future.done():
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raise RuntimeError('Event loop stopped before Future completed.')
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return future.result()
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def stop(self):
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"""Stop running the event loop.
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Every callback scheduled before stop() is called will run.
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Callback scheduled after stop() is called won't. However,
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those callbacks will run if run() is called again later.
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"""
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self.call_soon(_raise_stop_error)
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def is_running(self):
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"""Returns running status of event loop."""
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return self._running
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def time(self):
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"""Return the time according to the event loop's clock."""
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return time.monotonic()
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def call_later(self, delay, callback, *args):
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"""Arrange for a callback to be called at a given time.
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Return a Handle: an opaque object with a cancel() method that
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can be used to cancel the call.
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The delay can be an int or float, expressed in seconds. It is
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always a relative time.
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Each callback will be called exactly once. If two callbacks
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are scheduled for exactly the same time, it undefined which
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will be called first.
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Any positional arguments after the callback will be passed to
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the callback when it is called.
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"""
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return self.call_at(self.time() + delay, callback, *args)
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def call_at(self, when, callback, *args):
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"""Like call_later(), but uses an absolute time."""
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timer = events.TimerHandle(when, callback, args)
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heapq.heappush(self._scheduled, timer)
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return timer
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def call_soon(self, callback, *args):
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"""Arrange for a callback to be called as soon as possible.
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This operates as a FIFO queue, callbacks are called in the
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order in which they are registered. Each callback will be
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called exactly once.
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Any positional arguments after the callback will be passed to
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the callback when it is called.
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"""
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handle = events.make_handle(callback, args)
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self._ready.append(handle)
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return handle
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def call_soon_threadsafe(self, callback, *args):
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"""XXX"""
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handle = self.call_soon(callback, *args)
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self._write_to_self()
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return handle
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def run_in_executor(self, executor, callback, *args):
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if isinstance(callback, events.Handle):
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assert not args
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assert not isinstance(callback, events.TimerHandle)
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if callback._cancelled:
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f = futures.Future(loop=self)
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f.set_result(None)
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return f
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callback, args = callback._callback, callback._args
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if executor is None:
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executor = self._default_executor
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if executor is None:
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executor = concurrent.futures.ThreadPoolExecutor(_MAX_WORKERS)
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self._default_executor = executor
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return futures.wrap_future(executor.submit(callback, *args), loop=self)
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def set_default_executor(self, executor):
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self._default_executor = executor
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def getaddrinfo(self, host, port, *,
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family=0, type=0, proto=0, flags=0):
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return self.run_in_executor(None, socket.getaddrinfo,
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host, port, family, type, proto, flags)
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def getnameinfo(self, sockaddr, flags=0):
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return self.run_in_executor(None, socket.getnameinfo, sockaddr, flags)
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@tasks.coroutine
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def create_connection(self, protocol_factory, host=None, port=None, *,
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ssl=None, family=0, proto=0, flags=0, sock=None,
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local_addr=None):
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"""XXX"""
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if host is not None or port is not None:
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if sock is not None:
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raise ValueError(
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'host/port and sock can not be specified at the same time')
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f1 = self.getaddrinfo(
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host, port, family=family,
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type=socket.SOCK_STREAM, proto=proto, flags=flags)
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fs = [f1]
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if local_addr is not None:
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f2 = self.getaddrinfo(
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*local_addr, family=family,
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type=socket.SOCK_STREAM, proto=proto, flags=flags)
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fs.append(f2)
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else:
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f2 = None
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yield from tasks.wait(fs, loop=self)
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infos = f1.result()
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if not infos:
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raise OSError('getaddrinfo() returned empty list')
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if f2 is not None:
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laddr_infos = f2.result()
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if not laddr_infos:
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raise OSError('getaddrinfo() returned empty list')
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exceptions = []
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for family, type, proto, cname, address in infos:
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try:
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sock = socket.socket(family=family, type=type, proto=proto)
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sock.setblocking(False)
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if f2 is not None:
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for _, _, _, _, laddr in laddr_infos:
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try:
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sock.bind(laddr)
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break
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except OSError as exc:
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exc = OSError(
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exc.errno, 'error while '
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'attempting to bind on address '
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'{!r}: {}'.format(
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laddr, exc.strerror.lower()))
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exceptions.append(exc)
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else:
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sock.close()
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sock = None
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continue
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yield from self.sock_connect(sock, address)
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except OSError as exc:
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if sock is not None:
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sock.close()
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exceptions.append(exc)
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else:
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break
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else:
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if len(exceptions) == 1:
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raise exceptions[0]
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else:
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# If they all have the same str(), raise one.
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model = str(exceptions[0])
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if all(str(exc) == model for exc in exceptions):
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raise exceptions[0]
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# Raise a combined exception so the user can see all
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# the various error messages.
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raise OSError('Multiple exceptions: {}'.format(
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', '.join(str(exc) for exc in exceptions)))
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elif sock is None:
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raise ValueError(
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'host and port was not specified and no sock specified')
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sock.setblocking(False)
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protocol = protocol_factory()
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waiter = futures.Future(loop=self)
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if ssl:
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sslcontext = None if isinstance(ssl, bool) else ssl
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transport = self._make_ssl_transport(
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sock, protocol, sslcontext, waiter,
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server_side=False, server_hostname=host)
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else:
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transport = self._make_socket_transport(sock, protocol, waiter)
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yield from waiter
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return transport, protocol
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@tasks.coroutine
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def create_datagram_endpoint(self, protocol_factory,
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local_addr=None, remote_addr=None, *,
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family=0, proto=0, flags=0):
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"""Create datagram connection."""
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if not (local_addr or remote_addr):
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if family == 0:
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raise ValueError('unexpected address family')
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addr_pairs_info = (((family, proto), (None, None)),)
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else:
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# join addresss by (family, protocol)
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addr_infos = collections.OrderedDict()
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for idx, addr in ((0, local_addr), (1, remote_addr)):
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if addr is not None:
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assert isinstance(addr, tuple) and len(addr) == 2, (
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'2-tuple is expected')
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infos = yield from self.getaddrinfo(
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*addr, family=family, type=socket.SOCK_DGRAM,
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proto=proto, flags=flags)
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if not infos:
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raise OSError('getaddrinfo() returned empty list')
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for fam, _, pro, _, address in infos:
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key = (fam, pro)
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if key not in addr_infos:
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addr_infos[key] = [None, None]
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addr_infos[key][idx] = address
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# each addr has to have info for each (family, proto) pair
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addr_pairs_info = [
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(key, addr_pair) for key, addr_pair in addr_infos.items()
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if not ((local_addr and addr_pair[0] is None) or
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(remote_addr and addr_pair[1] is None))]
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if not addr_pairs_info:
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raise ValueError('can not get address information')
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exceptions = []
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for ((family, proto),
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(local_address, remote_address)) in addr_pairs_info:
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sock = None
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r_addr = None
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try:
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sock = socket.socket(
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family=family, type=socket.SOCK_DGRAM, proto=proto)
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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sock.setblocking(False)
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if local_addr:
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sock.bind(local_address)
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if remote_addr:
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yield from self.sock_connect(sock, remote_address)
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r_addr = remote_address
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except OSError as exc:
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if sock is not None:
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sock.close()
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exceptions.append(exc)
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else:
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break
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else:
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raise exceptions[0]
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protocol = protocol_factory()
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transport = self._make_datagram_transport(sock, protocol, r_addr)
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return transport, protocol
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@tasks.coroutine
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def create_server(self, protocol_factory, host=None, port=None,
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*,
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family=socket.AF_UNSPEC,
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flags=socket.AI_PASSIVE,
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sock=None,
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backlog=100,
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ssl=None,
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reuse_address=None):
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"""XXX"""
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if host is not None or port is not None:
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if sock is not None:
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raise ValueError(
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'host/port and sock can not be specified at the same time')
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AF_INET6 = getattr(socket, 'AF_INET6', 0)
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if reuse_address is None:
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reuse_address = os.name == 'posix' and sys.platform != 'cygwin'
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sockets = []
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if host == '':
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host = None
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infos = yield from self.getaddrinfo(
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host, port, family=family,
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type=socket.SOCK_STREAM, proto=0, flags=flags)
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if not infos:
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raise OSError('getaddrinfo() returned empty list')
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completed = False
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try:
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for res in infos:
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af, socktype, proto, canonname, sa = res
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sock = socket.socket(af, socktype, proto)
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sockets.append(sock)
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if reuse_address:
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sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,
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True)
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# Disable IPv4/IPv6 dual stack support (enabled by
|
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# default on Linux) which makes a single socket
|
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# listen on both address families.
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if af == AF_INET6 and hasattr(socket, 'IPPROTO_IPV6'):
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sock.setsockopt(socket.IPPROTO_IPV6,
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socket.IPV6_V6ONLY,
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True)
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try:
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sock.bind(sa)
|
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except OSError as err:
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raise OSError(err.errno, 'error while attempting '
|
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'to bind on address %r: %s'
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% (sa, err.strerror.lower()))
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completed = True
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finally:
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if not completed:
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for sock in sockets:
|
||||
sock.close()
|
||||
else:
|
||||
if sock is None:
|
||||
raise ValueError(
|
||||
'host and port was not specified and no sock specified')
|
||||
sockets = [sock]
|
||||
|
||||
server = Server(self, sockets)
|
||||
for sock in sockets:
|
||||
sock.listen(backlog)
|
||||
sock.setblocking(False)
|
||||
self._start_serving(protocol_factory, sock, ssl, server)
|
||||
return server
|
||||
|
||||
@tasks.coroutine
|
||||
def connect_read_pipe(self, protocol_factory, pipe):
|
||||
protocol = protocol_factory()
|
||||
waiter = futures.Future(loop=self)
|
||||
transport = self._make_read_pipe_transport(pipe, protocol, waiter)
|
||||
yield from waiter
|
||||
return transport, protocol
|
||||
|
||||
@tasks.coroutine
|
||||
def connect_write_pipe(self, protocol_factory, pipe):
|
||||
protocol = protocol_factory()
|
||||
waiter = futures.Future(loop=self)
|
||||
transport = self._make_write_pipe_transport(pipe, protocol, waiter)
|
||||
yield from waiter
|
||||
return transport, protocol
|
||||
|
||||
@tasks.coroutine
|
||||
def subprocess_shell(self, protocol_factory, cmd, *, stdin=subprocess.PIPE,
|
||||
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
|
||||
universal_newlines=False, shell=True, bufsize=0,
|
||||
**kwargs):
|
||||
assert not universal_newlines, "universal_newlines must be False"
|
||||
assert shell, "shell must be True"
|
||||
assert isinstance(cmd, str), cmd
|
||||
protocol = protocol_factory()
|
||||
transport = yield from self._make_subprocess_transport(
|
||||
protocol, cmd, True, stdin, stdout, stderr, bufsize, **kwargs)
|
||||
return transport, protocol
|
||||
|
||||
@tasks.coroutine
|
||||
def subprocess_exec(self, protocol_factory, *args, stdin=subprocess.PIPE,
|
||||
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
|
||||
universal_newlines=False, shell=False, bufsize=0,
|
||||
**kwargs):
|
||||
assert not universal_newlines, "universal_newlines must be False"
|
||||
assert not shell, "shell must be False"
|
||||
protocol = protocol_factory()
|
||||
transport = yield from self._make_subprocess_transport(
|
||||
protocol, args, False, stdin, stdout, stderr, bufsize, **kwargs)
|
||||
return transport, protocol
|
||||
|
||||
def _add_callback(self, handle):
|
||||
"""Add a Handle to ready or scheduled."""
|
||||
assert isinstance(handle, events.Handle), 'A Handle is required here'
|
||||
if handle._cancelled:
|
||||
return
|
||||
if isinstance(handle, events.TimerHandle):
|
||||
heapq.heappush(self._scheduled, handle)
|
||||
else:
|
||||
self._ready.append(handle)
|
||||
|
||||
def _add_callback_signalsafe(self, handle):
|
||||
"""Like _add_callback() but called from a signal handler."""
|
||||
self._add_callback(handle)
|
||||
self._write_to_self()
|
||||
|
||||
def _run_once(self):
|
||||
"""Run one full iteration of the event loop.
|
||||
|
||||
This calls all currently ready callbacks, polls for I/O,
|
||||
schedules the resulting callbacks, and finally schedules
|
||||
'call_later' callbacks.
|
||||
"""
|
||||
# Remove delayed calls that were cancelled from head of queue.
|
||||
while self._scheduled and self._scheduled[0]._cancelled:
|
||||
heapq.heappop(self._scheduled)
|
||||
|
||||
timeout = None
|
||||
if self._ready:
|
||||
timeout = 0
|
||||
elif self._scheduled:
|
||||
# Compute the desired timeout.
|
||||
when = self._scheduled[0]._when
|
||||
deadline = max(0, when - self.time())
|
||||
if timeout is None:
|
||||
timeout = deadline
|
||||
else:
|
||||
timeout = min(timeout, deadline)
|
||||
|
||||
# TODO: Instrumentation only in debug mode?
|
||||
t0 = self.time()
|
||||
event_list = self._selector.select(timeout)
|
||||
t1 = self.time()
|
||||
argstr = '' if timeout is None else '{:.3f}'.format(timeout)
|
||||
if t1-t0 >= 1:
|
||||
level = logging.INFO
|
||||
else:
|
||||
level = logging.DEBUG
|
||||
asyncio_log.log(level, 'poll%s took %.3f seconds', argstr, t1-t0)
|
||||
self._process_events(event_list)
|
||||
|
||||
# Handle 'later' callbacks that are ready.
|
||||
now = self.time()
|
||||
while self._scheduled:
|
||||
handle = self._scheduled[0]
|
||||
if handle._when > now:
|
||||
break
|
||||
handle = heapq.heappop(self._scheduled)
|
||||
self._ready.append(handle)
|
||||
|
||||
# This is the only place where callbacks are actually *called*.
|
||||
# All other places just add them to ready.
|
||||
# Note: We run all currently scheduled callbacks, but not any
|
||||
# callbacks scheduled by callbacks run this time around --
|
||||
# they will be run the next time (after another I/O poll).
|
||||
# Use an idiom that is threadsafe without using locks.
|
||||
ntodo = len(self._ready)
|
||||
for i in range(ntodo):
|
||||
handle = self._ready.popleft()
|
||||
if not handle._cancelled:
|
||||
handle._run()
|
||||
handle = None # Needed to break cycles when an exception occurs.
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
"""Constants."""
|
||||
|
||||
|
||||
LOG_THRESHOLD_FOR_CONNLOST_WRITES = 5
|
||||
|
|
@ -0,0 +1,395 @@
|
|||
"""Event loop and event loop policy."""
|
||||
|
||||
__all__ = ['AbstractEventLoopPolicy', 'DefaultEventLoopPolicy',
|
||||
'AbstractEventLoop', 'AbstractServer',
|
||||
'Handle', 'TimerHandle',
|
||||
'get_event_loop_policy', 'set_event_loop_policy',
|
||||
'get_event_loop', 'set_event_loop', 'new_event_loop',
|
||||
]
|
||||
|
||||
import subprocess
|
||||
import sys
|
||||
import threading
|
||||
import socket
|
||||
|
||||
from .log import asyncio_log
|
||||
|
||||
|
||||
class Handle:
|
||||
"""Object returned by callback registration methods."""
|
||||
|
||||
def __init__(self, callback, args):
|
||||
self._callback = callback
|
||||
self._args = args
|
||||
self._cancelled = False
|
||||
|
||||
def __repr__(self):
|
||||
res = 'Handle({}, {})'.format(self._callback, self._args)
|
||||
if self._cancelled:
|
||||
res += '<cancelled>'
|
||||
return res
|
||||
|
||||
def cancel(self):
|
||||
self._cancelled = True
|
||||
|
||||
def _run(self):
|
||||
try:
|
||||
self._callback(*self._args)
|
||||
except Exception:
|
||||
asyncio_log.exception('Exception in callback %s %r',
|
||||
self._callback, self._args)
|
||||
self = None # Needed to break cycles when an exception occurs.
|
||||
|
||||
|
||||
def make_handle(callback, args):
|
||||
# TODO: Inline this?
|
||||
assert not isinstance(callback, Handle), 'A Handle is not a callback'
|
||||
return Handle(callback, args)
|
||||
|
||||
|
||||
class TimerHandle(Handle):
|
||||
"""Object returned by timed callback registration methods."""
|
||||
|
||||
def __init__(self, when, callback, args):
|
||||
assert when is not None
|
||||
super().__init__(callback, args)
|
||||
|
||||
self._when = when
|
||||
|
||||
def __repr__(self):
|
||||
res = 'TimerHandle({}, {}, {})'.format(self._when,
|
||||
self._callback,
|
||||
self._args)
|
||||
if self._cancelled:
|
||||
res += '<cancelled>'
|
||||
|
||||
return res
|
||||
|
||||
def __hash__(self):
|
||||
return hash(self._when)
|
||||
|
||||
def __lt__(self, other):
|
||||
return self._when < other._when
|
||||
|
||||
def __le__(self, other):
|
||||
if self._when < other._when:
|
||||
return True
|
||||
return self.__eq__(other)
|
||||
|
||||
def __gt__(self, other):
|
||||
return self._when > other._when
|
||||
|
||||
def __ge__(self, other):
|
||||
if self._when > other._when:
|
||||
return True
|
||||
return self.__eq__(other)
|
||||
|
||||
def __eq__(self, other):
|
||||
if isinstance(other, TimerHandle):
|
||||
return (self._when == other._when and
|
||||
self._callback == other._callback and
|
||||
self._args == other._args and
|
||||
self._cancelled == other._cancelled)
|
||||
return NotImplemented
|
||||
|
||||
def __ne__(self, other):
|
||||
equal = self.__eq__(other)
|
||||
return NotImplemented if equal is NotImplemented else not equal
|
||||
|
||||
|
||||
class AbstractServer:
|
||||
"""Abstract server returned by create_service()."""
|
||||
|
||||
def close(self):
|
||||
"""Stop serving. This leaves existing connections open."""
|
||||
return NotImplemented
|
||||
|
||||
def wait_closed(self):
|
||||
"""Coroutine to wait until service is closed."""
|
||||
return NotImplemented
|
||||
|
||||
|
||||
class AbstractEventLoop:
|
||||
"""Abstract event loop."""
|
||||
|
||||
# Running and stopping the event loop.
|
||||
|
||||
def run_forever(self):
|
||||
"""Run the event loop until stop() is called."""
|
||||
raise NotImplementedError
|
||||
|
||||
def run_until_complete(self, future):
|
||||
"""Run the event loop until a Future is done.
|
||||
|
||||
Return the Future's result, or raise its exception.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def stop(self):
|
||||
"""Stop the event loop as soon as reasonable.
|
||||
|
||||
Exactly how soon that is may depend on the implementation, but
|
||||
no more I/O callbacks should be scheduled.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def is_running(self):
|
||||
"""Return whether the event loop is currently running."""
|
||||
raise NotImplementedError
|
||||
|
||||
# Methods scheduling callbacks. All these return Handles.
|
||||
|
||||
def call_soon(self, callback, *args):
|
||||
return self.call_later(0, callback, *args)
|
||||
|
||||
def call_later(self, delay, callback, *args):
|
||||
raise NotImplementedError
|
||||
|
||||
def call_at(self, when, callback, *args):
|
||||
raise NotImplementedError
|
||||
|
||||
def time(self):
|
||||
raise NotImplementedError
|
||||
|
||||
# Methods for interacting with threads.
|
||||
|
||||
def call_soon_threadsafe(self, callback, *args):
|
||||
raise NotImplementedError
|
||||
|
||||
def run_in_executor(self, executor, callback, *args):
|
||||
raise NotImplementedError
|
||||
|
||||
def set_default_executor(self, executor):
|
||||
raise NotImplementedError
|
||||
|
||||
# Network I/O methods returning Futures.
|
||||
|
||||
def getaddrinfo(self, host, port, *, family=0, type=0, proto=0, flags=0):
|
||||
raise NotImplementedError
|
||||
|
||||
def getnameinfo(self, sockaddr, flags=0):
|
||||
raise NotImplementedError
|
||||
|
||||
def create_connection(self, protocol_factory, host=None, port=None, *,
|
||||
ssl=None, family=0, proto=0, flags=0, sock=None,
|
||||
local_addr=None):
|
||||
raise NotImplementedError
|
||||
|
||||
def create_server(self, protocol_factory, host=None, port=None, *,
|
||||
family=socket.AF_UNSPEC, flags=socket.AI_PASSIVE,
|
||||
sock=None, backlog=100, ssl=None, reuse_address=None):
|
||||
"""A coroutine which creates a TCP server bound to host and port.
|
||||
|
||||
The return value is a Server object which can be used to stop
|
||||
the service.
|
||||
|
||||
If host is an empty string or None all interfaces are assumed
|
||||
and a list of multiple sockets will be returned (most likely
|
||||
one for IPv4 and another one for IPv6).
|
||||
|
||||
family can be set to either AF_INET or AF_INET6 to force the
|
||||
socket to use IPv4 or IPv6. If not set it will be determined
|
||||
from host (defaults to AF_UNSPEC).
|
||||
|
||||
flags is a bitmask for getaddrinfo().
|
||||
|
||||
sock can optionally be specified in order to use a preexisting
|
||||
socket object.
|
||||
|
||||
backlog is the maximum number of queued connections passed to
|
||||
listen() (defaults to 100).
|
||||
|
||||
ssl can be set to an SSLContext to enable SSL over the
|
||||
accepted connections.
|
||||
|
||||
reuse_address tells the kernel to reuse a local socket in
|
||||
TIME_WAIT state, without waiting for its natural timeout to
|
||||
expire. If not specified will automatically be set to True on
|
||||
UNIX.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def create_datagram_endpoint(self, protocol_factory,
|
||||
local_addr=None, remote_addr=None, *,
|
||||
family=0, proto=0, flags=0):
|
||||
raise NotImplementedError
|
||||
|
||||
def connect_read_pipe(self, protocol_factory, pipe):
|
||||
"""Register read pipe in eventloop.
|
||||
|
||||
protocol_factory should instantiate object with Protocol interface.
|
||||
pipe is file-like object already switched to nonblocking.
|
||||
Return pair (transport, protocol), where transport support
|
||||
ReadTransport ABC"""
|
||||
# The reason to accept file-like object instead of just file descriptor
|
||||
# is: we need to own pipe and close it at transport finishing
|
||||
# Can got complicated errors if pass f.fileno(),
|
||||
# close fd in pipe transport then close f and vise versa.
|
||||
raise NotImplementedError
|
||||
|
||||
def connect_write_pipe(self, protocol_factory, pipe):
|
||||
"""Register write pipe in eventloop.
|
||||
|
||||
protocol_factory should instantiate object with BaseProtocol interface.
|
||||
Pipe is file-like object already switched to nonblocking.
|
||||
Return pair (transport, protocol), where transport support
|
||||
WriteTransport ABC"""
|
||||
# The reason to accept file-like object instead of just file descriptor
|
||||
# is: we need to own pipe and close it at transport finishing
|
||||
# Can got complicated errors if pass f.fileno(),
|
||||
# close fd in pipe transport then close f and vise versa.
|
||||
raise NotImplementedError
|
||||
|
||||
def subprocess_shell(self, protocol_factory, cmd, *, stdin=subprocess.PIPE,
|
||||
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
|
||||
**kwargs):
|
||||
raise NotImplementedError
|
||||
|
||||
def subprocess_exec(self, protocol_factory, *args, stdin=subprocess.PIPE,
|
||||
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
|
||||
**kwargs):
|
||||
raise NotImplementedError
|
||||
|
||||
# Ready-based callback registration methods.
|
||||
# The add_*() methods return None.
|
||||
# The remove_*() methods return True if something was removed,
|
||||
# False if there was nothing to delete.
|
||||
|
||||
def add_reader(self, fd, callback, *args):
|
||||
raise NotImplementedError
|
||||
|
||||
def remove_reader(self, fd):
|
||||
raise NotImplementedError
|
||||
|
||||
def add_writer(self, fd, callback, *args):
|
||||
raise NotImplementedError
|
||||
|
||||
def remove_writer(self, fd):
|
||||
raise NotImplementedError
|
||||
|
||||
# Completion based I/O methods returning Futures.
|
||||
|
||||
def sock_recv(self, sock, nbytes):
|
||||
raise NotImplementedError
|
||||
|
||||
def sock_sendall(self, sock, data):
|
||||
raise NotImplementedError
|
||||
|
||||
def sock_connect(self, sock, address):
|
||||
raise NotImplementedError
|
||||
|
||||
def sock_accept(self, sock):
|
||||
raise NotImplementedError
|
||||
|
||||
# Signal handling.
|
||||
|
||||
def add_signal_handler(self, sig, callback, *args):
|
||||
raise NotImplementedError
|
||||
|
||||
def remove_signal_handler(self, sig):
|
||||
raise NotImplementedError
|
||||
|
||||
|
||||
class AbstractEventLoopPolicy:
|
||||
"""Abstract policy for accessing the event loop."""
|
||||
|
||||
def get_event_loop(self):
|
||||
"""XXX"""
|
||||
raise NotImplementedError
|
||||
|
||||
def set_event_loop(self, loop):
|
||||
"""XXX"""
|
||||
raise NotImplementedError
|
||||
|
||||
def new_event_loop(self):
|
||||
"""XXX"""
|
||||
raise NotImplementedError
|
||||
|
||||
|
||||
class DefaultEventLoopPolicy(threading.local, AbstractEventLoopPolicy):
|
||||
"""Default policy implementation for accessing the event loop.
|
||||
|
||||
In this policy, each thread has its own event loop. However, we
|
||||
only automatically create an event loop by default for the main
|
||||
thread; other threads by default have no event loop.
|
||||
|
||||
Other policies may have different rules (e.g. a single global
|
||||
event loop, or automatically creating an event loop per thread, or
|
||||
using some other notion of context to which an event loop is
|
||||
associated).
|
||||
"""
|
||||
|
||||
_loop = None
|
||||
_set_called = False
|
||||
|
||||
def get_event_loop(self):
|
||||
"""Get the event loop.
|
||||
|
||||
This may be None or an instance of EventLoop.
|
||||
"""
|
||||
if (self._loop is None and
|
||||
not self._set_called and
|
||||
isinstance(threading.current_thread(), threading._MainThread)):
|
||||
self._loop = self.new_event_loop()
|
||||
assert self._loop is not None, \
|
||||
('There is no current event loop in thread %r.' %
|
||||
threading.current_thread().name)
|
||||
return self._loop
|
||||
|
||||
def set_event_loop(self, loop):
|
||||
"""Set the event loop."""
|
||||
# TODO: The isinstance() test violates the PEP.
|
||||
self._set_called = True
|
||||
assert loop is None or isinstance(loop, AbstractEventLoop)
|
||||
self._loop = loop
|
||||
|
||||
def new_event_loop(self):
|
||||
"""Create a new event loop.
|
||||
|
||||
You must call set_event_loop() to make this the current event
|
||||
loop.
|
||||
"""
|
||||
if sys.platform == 'win32': # pragma: no cover
|
||||
from . import windows_events
|
||||
return windows_events.SelectorEventLoop()
|
||||
else: # pragma: no cover
|
||||
from . import unix_events
|
||||
return unix_events.SelectorEventLoop()
|
||||
|
||||
|
||||
# Event loop policy. The policy itself is always global, even if the
|
||||
# policy's rules say that there is an event loop per thread (or other
|
||||
# notion of context). The default policy is installed by the first
|
||||
# call to get_event_loop_policy().
|
||||
_event_loop_policy = None
|
||||
|
||||
|
||||
def get_event_loop_policy():
|
||||
"""XXX"""
|
||||
global _event_loop_policy
|
||||
if _event_loop_policy is None:
|
||||
_event_loop_policy = DefaultEventLoopPolicy()
|
||||
return _event_loop_policy
|
||||
|
||||
|
||||
def set_event_loop_policy(policy):
|
||||
"""XXX"""
|
||||
global _event_loop_policy
|
||||
# TODO: The isinstance() test violates the PEP.
|
||||
assert policy is None or isinstance(policy, AbstractEventLoopPolicy)
|
||||
_event_loop_policy = policy
|
||||
|
||||
|
||||
def get_event_loop():
|
||||
"""XXX"""
|
||||
return get_event_loop_policy().get_event_loop()
|
||||
|
||||
|
||||
def set_event_loop(loop):
|
||||
"""XXX"""
|
||||
get_event_loop_policy().set_event_loop(loop)
|
||||
|
||||
|
||||
def new_event_loop():
|
||||
"""XXX"""
|
||||
return get_event_loop_policy().new_event_loop()
|
||||
|
|
@ -0,0 +1,338 @@
|
|||
"""A Future class similar to the one in PEP 3148."""
|
||||
|
||||
__all__ = ['CancelledError', 'TimeoutError',
|
||||
'InvalidStateError',
|
||||
'Future', 'wrap_future',
|
||||
]
|
||||
|
||||
import concurrent.futures._base
|
||||
import logging
|
||||
import traceback
|
||||
|
||||
from . import events
|
||||
from .log import asyncio_log
|
||||
|
||||
# States for Future.
|
||||
_PENDING = 'PENDING'
|
||||
_CANCELLED = 'CANCELLED'
|
||||
_FINISHED = 'FINISHED'
|
||||
|
||||
# TODO: Do we really want to depend on concurrent.futures internals?
|
||||
Error = concurrent.futures._base.Error
|
||||
CancelledError = concurrent.futures.CancelledError
|
||||
TimeoutError = concurrent.futures.TimeoutError
|
||||
|
||||
STACK_DEBUG = logging.DEBUG - 1 # heavy-duty debugging
|
||||
|
||||
|
||||
class InvalidStateError(Error):
|
||||
"""The operation is not allowed in this state."""
|
||||
# TODO: Show the future, its state, the method, and the required state.
|
||||
|
||||
|
||||
class _TracebackLogger:
|
||||
"""Helper to log a traceback upon destruction if not cleared.
|
||||
|
||||
This solves a nasty problem with Futures and Tasks that have an
|
||||
exception set: if nobody asks for the exception, the exception is
|
||||
never logged. This violates the Zen of Python: 'Errors should
|
||||
never pass silently. Unless explicitly silenced.'
|
||||
|
||||
However, we don't want to log the exception as soon as
|
||||
set_exception() is called: if the calling code is written
|
||||
properly, it will get the exception and handle it properly. But
|
||||
we *do* want to log it if result() or exception() was never called
|
||||
-- otherwise developers waste a lot of time wondering why their
|
||||
buggy code fails silently.
|
||||
|
||||
An earlier attempt added a __del__() method to the Future class
|
||||
itself, but this backfired because the presence of __del__()
|
||||
prevents garbage collection from breaking cycles. A way out of
|
||||
this catch-22 is to avoid having a __del__() method on the Future
|
||||
class itself, but instead to have a reference to a helper object
|
||||
with a __del__() method that logs the traceback, where we ensure
|
||||
that the helper object doesn't participate in cycles, and only the
|
||||
Future has a reference to it.
|
||||
|
||||
The helper object is added when set_exception() is called. When
|
||||
the Future is collected, and the helper is present, the helper
|
||||
object is also collected, and its __del__() method will log the
|
||||
traceback. When the Future's result() or exception() method is
|
||||
called (and a helper object is present), it removes the the helper
|
||||
object, after calling its clear() method to prevent it from
|
||||
logging.
|
||||
|
||||
One downside is that we do a fair amount of work to extract the
|
||||
traceback from the exception, even when it is never logged. It
|
||||
would seem cheaper to just store the exception object, but that
|
||||
references the traceback, which references stack frames, which may
|
||||
reference the Future, which references the _TracebackLogger, and
|
||||
then the _TracebackLogger would be included in a cycle, which is
|
||||
what we're trying to avoid! As an optimization, we don't
|
||||
immediately format the exception; we only do the work when
|
||||
activate() is called, which call is delayed until after all the
|
||||
Future's callbacks have run. Since usually a Future has at least
|
||||
one callback (typically set by 'yield from') and usually that
|
||||
callback extracts the callback, thereby removing the need to
|
||||
format the exception.
|
||||
|
||||
PS. I don't claim credit for this solution. I first heard of it
|
||||
in a discussion about closing files when they are collected.
|
||||
"""
|
||||
|
||||
__slots__ = ['exc', 'tb']
|
||||
|
||||
def __init__(self, exc):
|
||||
self.exc = exc
|
||||
self.tb = None
|
||||
|
||||
def activate(self):
|
||||
exc = self.exc
|
||||
if exc is not None:
|
||||
self.exc = None
|
||||
self.tb = traceback.format_exception(exc.__class__, exc,
|
||||
exc.__traceback__)
|
||||
|
||||
def clear(self):
|
||||
self.exc = None
|
||||
self.tb = None
|
||||
|
||||
def __del__(self):
|
||||
if self.tb:
|
||||
asyncio_log.error('Future/Task exception was never retrieved:\n%s',
|
||||
''.join(self.tb))
|
||||
|
||||
|
||||
class Future:
|
||||
"""This class is *almost* compatible with concurrent.futures.Future.
|
||||
|
||||
Differences:
|
||||
|
||||
- result() and exception() do not take a timeout argument and
|
||||
raise an exception when the future isn't done yet.
|
||||
|
||||
- Callbacks registered with add_done_callback() are always called
|
||||
via the event loop's call_soon_threadsafe().
|
||||
|
||||
- This class is not compatible with the wait() and as_completed()
|
||||
methods in the concurrent.futures package.
|
||||
|
||||
(In Python 3.4 or later we may be able to unify the implementations.)
|
||||
"""
|
||||
|
||||
# Class variables serving as defaults for instance variables.
|
||||
_state = _PENDING
|
||||
_result = None
|
||||
_exception = None
|
||||
_loop = None
|
||||
|
||||
_blocking = False # proper use of future (yield vs yield from)
|
||||
|
||||
_tb_logger = None
|
||||
|
||||
def __init__(self, *, loop=None):
|
||||
"""Initialize the future.
|
||||
|
||||
The optional event_loop argument allows to explicitly set the event
|
||||
loop object used by the future. If it's not provided, the future uses
|
||||
the default event loop.
|
||||
"""
|
||||
if loop is None:
|
||||
self._loop = events.get_event_loop()
|
||||
else:
|
||||
self._loop = loop
|
||||
self._callbacks = []
|
||||
|
||||
def __repr__(self):
|
||||
res = self.__class__.__name__
|
||||
if self._state == _FINISHED:
|
||||
if self._exception is not None:
|
||||
res += '<exception={!r}>'.format(self._exception)
|
||||
else:
|
||||
res += '<result={!r}>'.format(self._result)
|
||||
elif self._callbacks:
|
||||
size = len(self._callbacks)
|
||||
if size > 2:
|
||||
res += '<{}, [{}, <{} more>, {}]>'.format(
|
||||
self._state, self._callbacks[0],
|
||||
size-2, self._callbacks[-1])
|
||||
else:
|
||||
res += '<{}, {}>'.format(self._state, self._callbacks)
|
||||
else:
|
||||
res += '<{}>'.format(self._state)
|
||||
return res
|
||||
|
||||
def cancel(self):
|
||||
"""Cancel the future and schedule callbacks.
|
||||
|
||||
If the future is already done or cancelled, return False. Otherwise,
|
||||
change the future's state to cancelled, schedule the callbacks and
|
||||
return True.
|
||||
"""
|
||||
if self._state != _PENDING:
|
||||
return False
|
||||
self._state = _CANCELLED
|
||||
self._schedule_callbacks()
|
||||
return True
|
||||
|
||||
def _schedule_callbacks(self):
|
||||
"""Internal: Ask the event loop to call all callbacks.
|
||||
|
||||
The callbacks are scheduled to be called as soon as possible. Also
|
||||
clears the callback list.
|
||||
"""
|
||||
callbacks = self._callbacks[:]
|
||||
if not callbacks:
|
||||
return
|
||||
|
||||
self._callbacks[:] = []
|
||||
for callback in callbacks:
|
||||
self._loop.call_soon(callback, self)
|
||||
|
||||
def cancelled(self):
|
||||
"""Return True if the future was cancelled."""
|
||||
return self._state == _CANCELLED
|
||||
|
||||
# Don't implement running(); see http://bugs.python.org/issue18699
|
||||
|
||||
def done(self):
|
||||
"""Return True if the future is done.
|
||||
|
||||
Done means either that a result / exception are available, or that the
|
||||
future was cancelled.
|
||||
"""
|
||||
return self._state != _PENDING
|
||||
|
||||
def result(self):
|
||||
"""Return the result this future represents.
|
||||
|
||||
If the future has been cancelled, raises CancelledError. If the
|
||||
future's result isn't yet available, raises InvalidStateError. If
|
||||
the future is done and has an exception set, this exception is raised.
|
||||
"""
|
||||
if self._state == _CANCELLED:
|
||||
raise CancelledError
|
||||
if self._state != _FINISHED:
|
||||
raise InvalidStateError('Result is not ready.')
|
||||
if self._tb_logger is not None:
|
||||
self._tb_logger.clear()
|
||||
self._tb_logger = None
|
||||
if self._exception is not None:
|
||||
raise self._exception
|
||||
return self._result
|
||||
|
||||
def exception(self):
|
||||
"""Return the exception that was set on this future.
|
||||
|
||||
The exception (or None if no exception was set) is returned only if
|
||||
the future is done. If the future has been cancelled, raises
|
||||
CancelledError. If the future isn't done yet, raises
|
||||
InvalidStateError.
|
||||
"""
|
||||
if self._state == _CANCELLED:
|
||||
raise CancelledError
|
||||
if self._state != _FINISHED:
|
||||
raise InvalidStateError('Exception is not set.')
|
||||
if self._tb_logger is not None:
|
||||
self._tb_logger.clear()
|
||||
self._tb_logger = None
|
||||
return self._exception
|
||||
|
||||
def add_done_callback(self, fn):
|
||||
"""Add a callback to be run when the future becomes done.
|
||||
|
||||
The callback is called with a single argument - the future object. If
|
||||
the future is already done when this is called, the callback is
|
||||
scheduled with call_soon.
|
||||
"""
|
||||
if self._state != _PENDING:
|
||||
self._loop.call_soon(fn, self)
|
||||
else:
|
||||
self._callbacks.append(fn)
|
||||
|
||||
# New method not in PEP 3148.
|
||||
|
||||
def remove_done_callback(self, fn):
|
||||
"""Remove all instances of a callback from the "call when done" list.
|
||||
|
||||
Returns the number of callbacks removed.
|
||||
"""
|
||||
filtered_callbacks = [f for f in self._callbacks if f != fn]
|
||||
removed_count = len(self._callbacks) - len(filtered_callbacks)
|
||||
if removed_count:
|
||||
self._callbacks[:] = filtered_callbacks
|
||||
return removed_count
|
||||
|
||||
# So-called internal methods (note: no set_running_or_notify_cancel()).
|
||||
|
||||
def set_result(self, result):
|
||||
"""Mark the future done and set its result.
|
||||
|
||||
If the future is already done when this method is called, raises
|
||||
InvalidStateError.
|
||||
"""
|
||||
if self._state != _PENDING:
|
||||
raise InvalidStateError('{}: {!r}'.format(self._state, self))
|
||||
self._result = result
|
||||
self._state = _FINISHED
|
||||
self._schedule_callbacks()
|
||||
|
||||
def set_exception(self, exception):
|
||||
"""Mark the future done and set an exception.
|
||||
|
||||
If the future is already done when this method is called, raises
|
||||
InvalidStateError.
|
||||
"""
|
||||
if self._state != _PENDING:
|
||||
raise InvalidStateError('{}: {!r}'.format(self._state, self))
|
||||
self._exception = exception
|
||||
self._tb_logger = _TracebackLogger(exception)
|
||||
self._state = _FINISHED
|
||||
self._schedule_callbacks()
|
||||
# Arrange for the logger to be activated after all callbacks
|
||||
# have had a chance to call result() or exception().
|
||||
self._loop.call_soon(self._tb_logger.activate)
|
||||
|
||||
# Truly internal methods.
|
||||
|
||||
def _copy_state(self, other):
|
||||
"""Internal helper to copy state from another Future.
|
||||
|
||||
The other Future may be a concurrent.futures.Future.
|
||||
"""
|
||||
assert other.done()
|
||||
assert not self.done()
|
||||
if other.cancelled():
|
||||
self.cancel()
|
||||
else:
|
||||
exception = other.exception()
|
||||
if exception is not None:
|
||||
self.set_exception(exception)
|
||||
else:
|
||||
result = other.result()
|
||||
self.set_result(result)
|
||||
|
||||
def __iter__(self):
|
||||
if not self.done():
|
||||
self._blocking = True
|
||||
yield self # This tells Task to wait for completion.
|
||||
assert self.done(), "yield from wasn't used with future"
|
||||
return self.result() # May raise too.
|
||||
|
||||
|
||||
def wrap_future(fut, *, loop=None):
|
||||
"""Wrap concurrent.futures.Future object."""
|
||||
if isinstance(fut, Future):
|
||||
return fut
|
||||
|
||||
assert isinstance(fut, concurrent.futures.Future), \
|
||||
'concurrent.futures.Future is expected, got {!r}'.format(fut)
|
||||
|
||||
if loop is None:
|
||||
loop = events.get_event_loop()
|
||||
|
||||
new_future = Future(loop=loop)
|
||||
fut.add_done_callback(
|
||||
lambda future: loop.call_soon_threadsafe(
|
||||
new_future._copy_state, fut))
|
||||
return new_future
|
||||
|
|
@ -0,0 +1,401 @@
|
|||
"""Synchronization primitives."""
|
||||
|
||||
__all__ = ['Lock', 'Event', 'Condition', 'Semaphore']
|
||||
|
||||
import collections
|
||||
|
||||
from . import events
|
||||
from . import futures
|
||||
from . import tasks
|
||||
|
||||
|
||||
class Lock:
|
||||
"""Primitive lock objects.
|
||||
|
||||
A primitive lock is a synchronization primitive that is not owned
|
||||
by a particular coroutine when locked. A primitive lock is in one
|
||||
of two states, 'locked' or 'unlocked'.
|
||||
|
||||
It is created in the unlocked state. It has two basic methods,
|
||||
acquire() and release(). When the state is unlocked, acquire()
|
||||
changes the state to locked and returns immediately. When the
|
||||
state is locked, acquire() blocks until a call to release() in
|
||||
another coroutine changes it to unlocked, then the acquire() call
|
||||
resets it to locked and returns. The release() method should only
|
||||
be called in the locked state; it changes the state to unlocked
|
||||
and returns immediately. If an attempt is made to release an
|
||||
unlocked lock, a RuntimeError will be raised.
|
||||
|
||||
When more than one coroutine is blocked in acquire() waiting for
|
||||
the state to turn to unlocked, only one coroutine proceeds when a
|
||||
release() call resets the state to unlocked; first coroutine which
|
||||
is blocked in acquire() is being processed.
|
||||
|
||||
acquire() is a coroutine and should be called with 'yield from'.
|
||||
|
||||
Locks also support the context manager protocol. '(yield from lock)'
|
||||
should be used as context manager expression.
|
||||
|
||||
Usage:
|
||||
|
||||
lock = Lock()
|
||||
...
|
||||
yield from lock
|
||||
try:
|
||||
...
|
||||
finally:
|
||||
lock.release()
|
||||
|
||||
Context manager usage:
|
||||
|
||||
lock = Lock()
|
||||
...
|
||||
with (yield from lock):
|
||||
...
|
||||
|
||||
Lock objects can be tested for locking state:
|
||||
|
||||
if not lock.locked():
|
||||
yield from lock
|
||||
else:
|
||||
# lock is acquired
|
||||
...
|
||||
|
||||
"""
|
||||
|
||||
def __init__(self, *, loop=None):
|
||||
self._waiters = collections.deque()
|
||||
self._locked = False
|
||||
if loop is not None:
|
||||
self._loop = loop
|
||||
else:
|
||||
self._loop = events.get_event_loop()
|
||||
|
||||
def __repr__(self):
|
||||
res = super().__repr__()
|
||||
extra = 'locked' if self._locked else 'unlocked'
|
||||
if self._waiters:
|
||||
extra = '{},waiters:{}'.format(extra, len(self._waiters))
|
||||
return '<{} [{}]>'.format(res[1:-1], extra)
|
||||
|
||||
def locked(self):
|
||||
"""Return true if lock is acquired."""
|
||||
return self._locked
|
||||
|
||||
@tasks.coroutine
|
||||
def acquire(self):
|
||||
"""Acquire a lock.
|
||||
|
||||
This method blocks until the lock is unlocked, then sets it to
|
||||
locked and returns True.
|
||||
"""
|
||||
if not self._waiters and not self._locked:
|
||||
self._locked = True
|
||||
return True
|
||||
|
||||
fut = futures.Future(loop=self._loop)
|
||||
self._waiters.append(fut)
|
||||
try:
|
||||
yield from fut
|
||||
self._locked = True
|
||||
return True
|
||||
finally:
|
||||
self._waiters.remove(fut)
|
||||
|
||||
def release(self):
|
||||
"""Release a lock.
|
||||
|
||||
When the lock is locked, reset it to unlocked, and return.
|
||||
If any other coroutines are blocked waiting for the lock to become
|
||||
unlocked, allow exactly one of them to proceed.
|
||||
|
||||
When invoked on an unlocked lock, a RuntimeError is raised.
|
||||
|
||||
There is no return value.
|
||||
"""
|
||||
if self._locked:
|
||||
self._locked = False
|
||||
# Wake up the first waiter who isn't cancelled.
|
||||
for fut in self._waiters:
|
||||
if not fut.done():
|
||||
fut.set_result(True)
|
||||
break
|
||||
else:
|
||||
raise RuntimeError('Lock is not acquired.')
|
||||
|
||||
def __enter__(self):
|
||||
if not self._locked:
|
||||
raise RuntimeError(
|
||||
'"yield from" should be used as context manager expression')
|
||||
return True
|
||||
|
||||
def __exit__(self, *args):
|
||||
self.release()
|
||||
|
||||
def __iter__(self):
|
||||
yield from self.acquire()
|
||||
return self
|
||||
|
||||
|
||||
class Event:
|
||||
"""An Event implementation, our equivalent to threading.Event.
|
||||
|
||||
Class implementing event objects. An event manages a flag that can be set
|
||||
to true with the set() method and reset to false with the clear() method.
|
||||
The wait() method blocks until the flag is true. The flag is initially
|
||||
false.
|
||||
"""
|
||||
|
||||
def __init__(self, *, loop=None):
|
||||
self._waiters = collections.deque()
|
||||
self._value = False
|
||||
if loop is not None:
|
||||
self._loop = loop
|
||||
else:
|
||||
self._loop = events.get_event_loop()
|
||||
|
||||
def __repr__(self):
|
||||
# TODO: add waiters:N if > 0.
|
||||
res = super().__repr__()
|
||||
return '<{} [{}]>'.format(res[1:-1], 'set' if self._value else 'unset')
|
||||
|
||||
def is_set(self):
|
||||
"""Return true if and only if the internal flag is true."""
|
||||
return self._value
|
||||
|
||||
def set(self):
|
||||
"""Set the internal flag to true. All coroutines waiting for it to
|
||||
become true are awakened. Coroutine that call wait() once the flag is
|
||||
true will not block at all.
|
||||
"""
|
||||
if not self._value:
|
||||
self._value = True
|
||||
|
||||
for fut in self._waiters:
|
||||
if not fut.done():
|
||||
fut.set_result(True)
|
||||
|
||||
def clear(self):
|
||||
"""Reset the internal flag to false. Subsequently, coroutines calling
|
||||
wait() will block until set() is called to set the internal flag
|
||||
to true again."""
|
||||
self._value = False
|
||||
|
||||
@tasks.coroutine
|
||||
def wait(self):
|
||||
"""Block until the internal flag is true.
|
||||
|
||||
If the internal flag is true on entry, return True
|
||||
immediately. Otherwise, block until another coroutine calls
|
||||
set() to set the flag to true, then return True.
|
||||
"""
|
||||
if self._value:
|
||||
return True
|
||||
|
||||
fut = futures.Future(loop=self._loop)
|
||||
self._waiters.append(fut)
|
||||
try:
|
||||
yield from fut
|
||||
return True
|
||||
finally:
|
||||
self._waiters.remove(fut)
|
||||
|
||||
|
||||
# TODO: Why is this a Lock subclass? threading.Condition *has* a lock.
|
||||
class Condition(Lock):
|
||||
"""A Condition implementation.
|
||||
|
||||
This class implements condition variable objects. A condition variable
|
||||
allows one or more coroutines to wait until they are notified by another
|
||||
coroutine.
|
||||
"""
|
||||
|
||||
def __init__(self, *, loop=None):
|
||||
super().__init__(loop=loop)
|
||||
self._condition_waiters = collections.deque()
|
||||
|
||||
# TODO: Add __repr__() with len(_condition_waiters).
|
||||
|
||||
@tasks.coroutine
|
||||
def wait(self):
|
||||
"""Wait until notified.
|
||||
|
||||
If the calling coroutine has not acquired the lock when this
|
||||
method is called, a RuntimeError is raised.
|
||||
|
||||
This method releases the underlying lock, and then blocks
|
||||
until it is awakened by a notify() or notify_all() call for
|
||||
the same condition variable in another coroutine. Once
|
||||
awakened, it re-acquires the lock and returns True.
|
||||
"""
|
||||
if not self._locked:
|
||||
raise RuntimeError('cannot wait on un-acquired lock')
|
||||
|
||||
keep_lock = True
|
||||
self.release()
|
||||
try:
|
||||
fut = futures.Future(loop=self._loop)
|
||||
self._condition_waiters.append(fut)
|
||||
try:
|
||||
yield from fut
|
||||
return True
|
||||
finally:
|
||||
self._condition_waiters.remove(fut)
|
||||
|
||||
except GeneratorExit:
|
||||
keep_lock = False # Prevent yield in finally clause.
|
||||
raise
|
||||
finally:
|
||||
if keep_lock:
|
||||
yield from self.acquire()
|
||||
|
||||
@tasks.coroutine
|
||||
def wait_for(self, predicate):
|
||||
"""Wait until a predicate becomes true.
|
||||
|
||||
The predicate should be a callable which result will be
|
||||
interpreted as a boolean value. The final predicate value is
|
||||
the return value.
|
||||
"""
|
||||
result = predicate()
|
||||
while not result:
|
||||
yield from self.wait()
|
||||
result = predicate()
|
||||
return result
|
||||
|
||||
def notify(self, n=1):
|
||||
"""By default, wake up one coroutine waiting on this condition, if any.
|
||||
If the calling coroutine has not acquired the lock when this method
|
||||
is called, a RuntimeError is raised.
|
||||
|
||||
This method wakes up at most n of the coroutines waiting for the
|
||||
condition variable; it is a no-op if no coroutines are waiting.
|
||||
|
||||
Note: an awakened coroutine does not actually return from its
|
||||
wait() call until it can reacquire the lock. Since notify() does
|
||||
not release the lock, its caller should.
|
||||
"""
|
||||
if not self._locked:
|
||||
raise RuntimeError('cannot notify on un-acquired lock')
|
||||
|
||||
idx = 0
|
||||
for fut in self._condition_waiters:
|
||||
if idx >= n:
|
||||
break
|
||||
|
||||
if not fut.done():
|
||||
idx += 1
|
||||
fut.set_result(False)
|
||||
|
||||
def notify_all(self):
|
||||
"""Wake up all threads waiting on this condition. This method acts
|
||||
like notify(), but wakes up all waiting threads instead of one. If the
|
||||
calling thread has not acquired the lock when this method is called,
|
||||
a RuntimeError is raised.
|
||||
"""
|
||||
self.notify(len(self._condition_waiters))
|
||||
|
||||
|
||||
class Semaphore:
|
||||
"""A Semaphore implementation.
|
||||
|
||||
A semaphore manages an internal counter which is decremented by each
|
||||
acquire() call and incremented by each release() call. The counter
|
||||
can never go below zero; when acquire() finds that it is zero, it blocks,
|
||||
waiting until some other thread calls release().
|
||||
|
||||
Semaphores also support the context manager protocol.
|
||||
|
||||
The first optional argument gives the initial value for the internal
|
||||
counter; it defaults to 1. If the value given is less than 0,
|
||||
ValueError is raised.
|
||||
|
||||
The second optional argument determins can semophore be released more than
|
||||
initial internal counter value; it defaults to False. If the value given
|
||||
is True and number of release() is more than number of successfull
|
||||
acquire() calls ValueError is raised.
|
||||
"""
|
||||
|
||||
def __init__(self, value=1, bound=False, *, loop=None):
|
||||
if value < 0:
|
||||
raise ValueError("Semaphore initial value must be > 0")
|
||||
self._value = value
|
||||
self._bound = bound
|
||||
self._bound_value = value
|
||||
self._waiters = collections.deque()
|
||||
self._locked = False
|
||||
if loop is not None:
|
||||
self._loop = loop
|
||||
else:
|
||||
self._loop = events.get_event_loop()
|
||||
|
||||
def __repr__(self):
|
||||
# TODO: add waiters:N if > 0.
|
||||
res = super().__repr__()
|
||||
return '<{} [{}]>'.format(
|
||||
res[1:-1],
|
||||
'locked' if self._locked else 'unlocked,value:{}'.format(
|
||||
self._value))
|
||||
|
||||
def locked(self):
|
||||
"""Returns True if semaphore can not be acquired immediately."""
|
||||
return self._locked
|
||||
|
||||
@tasks.coroutine
|
||||
def acquire(self):
|
||||
"""Acquire a semaphore.
|
||||
|
||||
If the internal counter is larger than zero on entry,
|
||||
decrement it by one and return True immediately. If it is
|
||||
zero on entry, block, waiting until some other coroutine has
|
||||
called release() to make it larger than 0, and then return
|
||||
True.
|
||||
"""
|
||||
if not self._waiters and self._value > 0:
|
||||
self._value -= 1
|
||||
if self._value == 0:
|
||||
self._locked = True
|
||||
return True
|
||||
|
||||
fut = futures.Future(loop=self._loop)
|
||||
self._waiters.append(fut)
|
||||
try:
|
||||
yield from fut
|
||||
self._value -= 1
|
||||
if self._value == 0:
|
||||
self._locked = True
|
||||
return True
|
||||
finally:
|
||||
self._waiters.remove(fut)
|
||||
|
||||
def release(self):
|
||||
"""Release a semaphore, incrementing the internal counter by one.
|
||||
When it was zero on entry and another coroutine is waiting for it to
|
||||
become larger than zero again, wake up that coroutine.
|
||||
|
||||
If Semaphore is create with "bound" paramter equals true, then
|
||||
release() method checks to make sure its current value doesn't exceed
|
||||
its initial value. If it does, ValueError is raised.
|
||||
"""
|
||||
if self._bound and self._value >= self._bound_value:
|
||||
raise ValueError('Semaphore released too many times')
|
||||
|
||||
self._value += 1
|
||||
self._locked = False
|
||||
|
||||
for waiter in self._waiters:
|
||||
if not waiter.done():
|
||||
waiter.set_result(True)
|
||||
break
|
||||
|
||||
def __enter__(self):
|
||||
# TODO: This is questionable. How do we know the user actually
|
||||
# wrote "with (yield from sema)" instead of "with sema"?
|
||||
return True
|
||||
|
||||
def __exit__(self, *args):
|
||||
self.release()
|
||||
|
||||
def __iter__(self):
|
||||
yield from self.acquire()
|
||||
return self
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
"""Logging configuration."""
|
||||
|
||||
import logging
|
||||
|
||||
|
||||
asyncio_log = logging.getLogger("asyncio")
|
||||
|
|
@ -0,0 +1,352 @@
|
|||
"""Event loop using a proactor and related classes.
|
||||
|
||||
A proactor is a "notify-on-completion" multiplexer. Currently a
|
||||
proactor is only implemented on Windows with IOCP.
|
||||
"""
|
||||
|
||||
import socket
|
||||
|
||||
from . import base_events
|
||||
from . import constants
|
||||
from . import futures
|
||||
from . import transports
|
||||
from .log import asyncio_log
|
||||
|
||||
|
||||
class _ProactorBasePipeTransport(transports.BaseTransport):
|
||||
"""Base class for pipe and socket transports."""
|
||||
|
||||
def __init__(self, loop, sock, protocol, waiter=None,
|
||||
extra=None, server=None):
|
||||
super().__init__(extra)
|
||||
self._set_extra(sock)
|
||||
self._loop = loop
|
||||
self._sock = sock
|
||||
self._protocol = protocol
|
||||
self._server = server
|
||||
self._buffer = []
|
||||
self._read_fut = None
|
||||
self._write_fut = None
|
||||
self._conn_lost = 0
|
||||
self._closing = False # Set when close() called.
|
||||
self._eof_written = False
|
||||
if self._server is not None:
|
||||
self._server.attach(self)
|
||||
self._loop.call_soon(self._protocol.connection_made, self)
|
||||
if waiter is not None:
|
||||
self._loop.call_soon(waiter.set_result, None)
|
||||
|
||||
def _set_extra(self, sock):
|
||||
self._extra['pipe'] = sock
|
||||
|
||||
def close(self):
|
||||
if self._closing:
|
||||
return
|
||||
self._closing = True
|
||||
self._conn_lost += 1
|
||||
if not self._buffer and self._write_fut is None:
|
||||
self._loop.call_soon(self._call_connection_lost, None)
|
||||
if self._read_fut is not None:
|
||||
self._read_fut.cancel()
|
||||
|
||||
def _fatal_error(self, exc):
|
||||
asyncio_log.exception('Fatal error for %s', self)
|
||||
self._force_close(exc)
|
||||
|
||||
def _force_close(self, exc):
|
||||
if self._closing:
|
||||
return
|
||||
self._closing = True
|
||||
self._conn_lost += 1
|
||||
if self._write_fut:
|
||||
self._write_fut.cancel()
|
||||
if self._read_fut:
|
||||
self._read_fut.cancel()
|
||||
self._write_fut = self._read_fut = None
|
||||
self._buffer = []
|
||||
self._loop.call_soon(self._call_connection_lost, exc)
|
||||
|
||||
def _call_connection_lost(self, exc):
|
||||
try:
|
||||
self._protocol.connection_lost(exc)
|
||||
finally:
|
||||
# XXX If there is a pending overlapped read on the other
|
||||
# end then it may fail with ERROR_NETNAME_DELETED if we
|
||||
# just close our end. First calling shutdown() seems to
|
||||
# cure it, but maybe using DisconnectEx() would be better.
|
||||
if hasattr(self._sock, 'shutdown'):
|
||||
self._sock.shutdown(socket.SHUT_RDWR)
|
||||
self._sock.close()
|
||||
server = self._server
|
||||
if server is not None:
|
||||
server.detach(self)
|
||||
self._server = None
|
||||
|
||||
|
||||
class _ProactorReadPipeTransport(_ProactorBasePipeTransport,
|
||||
transports.ReadTransport):
|
||||
"""Transport for read pipes."""
|
||||
|
||||
def __init__(self, loop, sock, protocol, waiter=None,
|
||||
extra=None, server=None):
|
||||
super().__init__(loop, sock, protocol, waiter, extra, server)
|
||||
self._read_fut = None
|
||||
self._paused = False
|
||||
self._loop.call_soon(self._loop_reading)
|
||||
|
||||
def pause(self):
|
||||
assert not self._closing, 'Cannot pause() when closing'
|
||||
assert not self._paused, 'Already paused'
|
||||
self._paused = True
|
||||
|
||||
def resume(self):
|
||||
assert self._paused, 'Not paused'
|
||||
self._paused = False
|
||||
if self._closing:
|
||||
return
|
||||
self._loop.call_soon(self._loop_reading, self._read_fut)
|
||||
|
||||
def _loop_reading(self, fut=None):
|
||||
if self._paused:
|
||||
return
|
||||
data = None
|
||||
|
||||
try:
|
||||
if fut is not None:
|
||||
assert self._read_fut is fut or (self._read_fut is None and
|
||||
self._closing)
|
||||
self._read_fut = None
|
||||
data = fut.result() # deliver data later in "finally" clause
|
||||
|
||||
if self._closing:
|
||||
# since close() has been called we ignore any read data
|
||||
data = None
|
||||
return
|
||||
|
||||
if data == b'':
|
||||
# we got end-of-file so no need to reschedule a new read
|
||||
return
|
||||
|
||||
# reschedule a new read
|
||||
self._read_fut = self._loop._proactor.recv(self._sock, 4096)
|
||||
except ConnectionAbortedError as exc:
|
||||
if not self._closing:
|
||||
self._fatal_error(exc)
|
||||
except ConnectionResetError as exc:
|
||||
self._force_close(exc)
|
||||
except OSError as exc:
|
||||
self._fatal_error(exc)
|
||||
except futures.CancelledError:
|
||||
if not self._closing:
|
||||
raise
|
||||
else:
|
||||
self._read_fut.add_done_callback(self._loop_reading)
|
||||
finally:
|
||||
if data:
|
||||
self._protocol.data_received(data)
|
||||
elif data is not None:
|
||||
keep_open = self._protocol.eof_received()
|
||||
if not keep_open:
|
||||
self.close()
|
||||
|
||||
|
||||
class _ProactorWritePipeTransport(_ProactorBasePipeTransport,
|
||||
transports.WriteTransport):
|
||||
"""Transport for write pipes."""
|
||||
|
||||
def write(self, data):
|
||||
assert isinstance(data, bytes), repr(data)
|
||||
if self._eof_written:
|
||||
raise IOError('write_eof() already called')
|
||||
|
||||
if not data:
|
||||
return
|
||||
|
||||
if self._conn_lost:
|
||||
if self._conn_lost >= constants.LOG_THRESHOLD_FOR_CONNLOST_WRITES:
|
||||
asyncio_log.warning('socket.send() raised exception.')
|
||||
self._conn_lost += 1
|
||||
return
|
||||
self._buffer.append(data)
|
||||
if self._write_fut is None:
|
||||
self._loop_writing()
|
||||
|
||||
def _loop_writing(self, f=None):
|
||||
try:
|
||||
assert f is self._write_fut
|
||||
self._write_fut = None
|
||||
if f:
|
||||
f.result()
|
||||
data = b''.join(self._buffer)
|
||||
self._buffer = []
|
||||
if not data:
|
||||
if self._closing:
|
||||
self._loop.call_soon(self._call_connection_lost, None)
|
||||
if self._eof_written:
|
||||
self._sock.shutdown(socket.SHUT_WR)
|
||||
return
|
||||
self._write_fut = self._loop._proactor.send(self._sock, data)
|
||||
self._write_fut.add_done_callback(self._loop_writing)
|
||||
except ConnectionResetError as exc:
|
||||
self._force_close(exc)
|
||||
except OSError as exc:
|
||||
self._fatal_error(exc)
|
||||
|
||||
def can_write_eof(self):
|
||||
return True
|
||||
|
||||
def write_eof(self):
|
||||
self.close()
|
||||
|
||||
def abort(self):
|
||||
self._force_close(None)
|
||||
|
||||
|
||||
class _ProactorDuplexPipeTransport(_ProactorReadPipeTransport,
|
||||
_ProactorWritePipeTransport,
|
||||
transports.Transport):
|
||||
"""Transport for duplex pipes."""
|
||||
|
||||
def can_write_eof(self):
|
||||
return False
|
||||
|
||||
def write_eof(self):
|
||||
raise NotImplementedError
|
||||
|
||||
|
||||
class _ProactorSocketTransport(_ProactorReadPipeTransport,
|
||||
_ProactorWritePipeTransport,
|
||||
transports.Transport):
|
||||
"""Transport for connected sockets."""
|
||||
|
||||
def _set_extra(self, sock):
|
||||
self._extra['socket'] = sock
|
||||
try:
|
||||
self._extra['sockname'] = sock.getsockname()
|
||||
except (socket.error, AttributeError):
|
||||
pass
|
||||
if 'peername' not in self._extra:
|
||||
try:
|
||||
self._extra['peername'] = sock.getpeername()
|
||||
except (socket.error, AttributeError):
|
||||
pass
|
||||
|
||||
def can_write_eof(self):
|
||||
return True
|
||||
|
||||
def write_eof(self):
|
||||
if self._closing or self._eof_written:
|
||||
return
|
||||
self._eof_written = True
|
||||
if self._write_fut is None:
|
||||
self._sock.shutdown(socket.SHUT_WR)
|
||||
|
||||
|
||||
class BaseProactorEventLoop(base_events.BaseEventLoop):
|
||||
|
||||
def __init__(self, proactor):
|
||||
super().__init__()
|
||||
asyncio_log.debug('Using proactor: %s', proactor.__class__.__name__)
|
||||
self._proactor = proactor
|
||||
self._selector = proactor # convenient alias
|
||||
proactor.set_loop(self)
|
||||
self._make_self_pipe()
|
||||
|
||||
def _make_socket_transport(self, sock, protocol, waiter=None,
|
||||
extra=None, server=None):
|
||||
return _ProactorSocketTransport(self, sock, protocol, waiter,
|
||||
extra, server)
|
||||
|
||||
def _make_duplex_pipe_transport(self, sock, protocol, waiter=None,
|
||||
extra=None):
|
||||
return _ProactorDuplexPipeTransport(self,
|
||||
sock, protocol, waiter, extra)
|
||||
|
||||
def _make_read_pipe_transport(self, sock, protocol, waiter=None,
|
||||
extra=None):
|
||||
return _ProactorReadPipeTransport(self, sock, protocol, waiter, extra)
|
||||
|
||||
def _make_write_pipe_transport(self, sock, protocol, waiter=None,
|
||||
extra=None):
|
||||
return _ProactorWritePipeTransport(self, sock, protocol, waiter, extra)
|
||||
|
||||
def close(self):
|
||||
if self._proactor is not None:
|
||||
self._close_self_pipe()
|
||||
self._proactor.close()
|
||||
self._proactor = None
|
||||
self._selector = None
|
||||
|
||||
def sock_recv(self, sock, n):
|
||||
return self._proactor.recv(sock, n)
|
||||
|
||||
def sock_sendall(self, sock, data):
|
||||
return self._proactor.send(sock, data)
|
||||
|
||||
def sock_connect(self, sock, address):
|
||||
return self._proactor.connect(sock, address)
|
||||
|
||||
def sock_accept(self, sock):
|
||||
return self._proactor.accept(sock)
|
||||
|
||||
def _socketpair(self):
|
||||
raise NotImplementedError
|
||||
|
||||
def _close_self_pipe(self):
|
||||
self._ssock.close()
|
||||
self._ssock = None
|
||||
self._csock.close()
|
||||
self._csock = None
|
||||
self._internal_fds -= 1
|
||||
|
||||
def _make_self_pipe(self):
|
||||
# A self-socket, really. :-)
|
||||
self._ssock, self._csock = self._socketpair()
|
||||
self._ssock.setblocking(False)
|
||||
self._csock.setblocking(False)
|
||||
self._internal_fds += 1
|
||||
self.call_soon(self._loop_self_reading)
|
||||
|
||||
def _loop_self_reading(self, f=None):
|
||||
try:
|
||||
if f is not None:
|
||||
f.result() # may raise
|
||||
f = self._proactor.recv(self._ssock, 4096)
|
||||
except:
|
||||
self.close()
|
||||
raise
|
||||
else:
|
||||
f.add_done_callback(self._loop_self_reading)
|
||||
|
||||
def _write_to_self(self):
|
||||
self._csock.send(b'x')
|
||||
|
||||
def _start_serving(self, protocol_factory, sock, ssl=None, server=None):
|
||||
assert not ssl, 'IocpEventLoop is incompatible with SSL.'
|
||||
|
||||
def loop(f=None):
|
||||
try:
|
||||
if f is not None:
|
||||
conn, addr = f.result()
|
||||
protocol = protocol_factory()
|
||||
self._make_socket_transport(
|
||||
conn, protocol,
|
||||
extra={'peername': addr}, server=server)
|
||||
f = self._proactor.accept(sock)
|
||||
except OSError:
|
||||
if sock.fileno() != -1:
|
||||
asyncio_log.exception('Accept failed')
|
||||
sock.close()
|
||||
except futures.CancelledError:
|
||||
sock.close()
|
||||
else:
|
||||
f.add_done_callback(loop)
|
||||
|
||||
self.call_soon(loop)
|
||||
|
||||
def _process_events(self, event_list):
|
||||
pass # XXX hard work currently done in poll
|
||||
|
||||
def _stop_serving(self, sock):
|
||||
self._proactor._stop_serving(sock)
|
||||
sock.close()
|
||||
|
|
@ -0,0 +1,98 @@
|
|||
"""Abstract Protocol class."""
|
||||
|
||||
__all__ = ['Protocol', 'DatagramProtocol']
|
||||
|
||||
|
||||
class BaseProtocol:
|
||||
"""ABC for base protocol class.
|
||||
|
||||
Usually user implements protocols that derived from BaseProtocol
|
||||
like Protocol or ProcessProtocol.
|
||||
|
||||
The only case when BaseProtocol should be implemented directly is
|
||||
write-only transport like write pipe
|
||||
"""
|
||||
|
||||
def connection_made(self, transport):
|
||||
"""Called when a connection is made.
|
||||
|
||||
The argument is the transport representing the pipe connection.
|
||||
To receive data, wait for data_received() calls.
|
||||
When the connection is closed, connection_lost() is called.
|
||||
"""
|
||||
|
||||
def connection_lost(self, exc):
|
||||
"""Called when the connection is lost or closed.
|
||||
|
||||
The argument is an exception object or None (the latter
|
||||
meaning a regular EOF is received or the connection was
|
||||
aborted or closed).
|
||||
"""
|
||||
|
||||
|
||||
class Protocol(BaseProtocol):
|
||||
"""ABC representing a protocol.
|
||||
|
||||
The user should implement this interface. They can inherit from
|
||||
this class but don't need to. The implementations here do
|
||||
nothing (they don't raise exceptions).
|
||||
|
||||
When the user wants to requests a transport, they pass a protocol
|
||||
factory to a utility function (e.g., EventLoop.create_connection()).
|
||||
|
||||
When the connection is made successfully, connection_made() is
|
||||
called with a suitable transport object. Then data_received()
|
||||
will be called 0 or more times with data (bytes) received from the
|
||||
transport; finally, connection_lost() will be called exactly once
|
||||
with either an exception object or None as an argument.
|
||||
|
||||
State machine of calls:
|
||||
|
||||
start -> CM [-> DR*] [-> ER?] -> CL -> end
|
||||
"""
|
||||
|
||||
def data_received(self, data):
|
||||
"""Called when some data is received.
|
||||
|
||||
The argument is a bytes object.
|
||||
"""
|
||||
|
||||
def eof_received(self):
|
||||
"""Called when the other end calls write_eof() or equivalent.
|
||||
|
||||
If this returns a false value (including None), the transport
|
||||
will close itself. If it returns a true value, closing the
|
||||
transport is up to the protocol.
|
||||
"""
|
||||
|
||||
|
||||
class DatagramProtocol(BaseProtocol):
|
||||
"""ABC representing a datagram protocol."""
|
||||
|
||||
def datagram_received(self, data, addr):
|
||||
"""Called when some datagram is received."""
|
||||
|
||||
def connection_refused(self, exc):
|
||||
"""Connection is refused."""
|
||||
|
||||
|
||||
class SubprocessProtocol(BaseProtocol):
|
||||
"""ABC representing a protocol for subprocess calls."""
|
||||
|
||||
def pipe_data_received(self, fd, data):
|
||||
"""Called when subprocess write a data into stdout/stderr pipes.
|
||||
|
||||
fd is int file dascriptor.
|
||||
data is bytes object.
|
||||
"""
|
||||
|
||||
def pipe_connection_lost(self, fd, exc):
|
||||
"""Called when a file descriptor associated with the child process is
|
||||
closed.
|
||||
|
||||
fd is the int file descriptor that was closed.
|
||||
"""
|
||||
|
||||
def process_exited(self):
|
||||
"""Called when subprocess has exited.
|
||||
"""
|
||||
|
|
@ -0,0 +1,284 @@
|
|||
"""Queues"""
|
||||
|
||||
__all__ = ['Queue', 'PriorityQueue', 'LifoQueue', 'JoinableQueue',
|
||||
'Full', 'Empty']
|
||||
|
||||
import collections
|
||||
import heapq
|
||||
import queue
|
||||
|
||||
from . import events
|
||||
from . import futures
|
||||
from . import locks
|
||||
from .tasks import coroutine
|
||||
|
||||
|
||||
# Re-export queue.Full and .Empty exceptions.
|
||||
Full = queue.Full
|
||||
Empty = queue.Empty
|
||||
|
||||
|
||||
class Queue:
|
||||
"""A queue, useful for coordinating producer and consumer coroutines.
|
||||
|
||||
If maxsize is less than or equal to zero, the queue size is infinite. If it
|
||||
is an integer greater than 0, then "yield from put()" will block when the
|
||||
queue reaches maxsize, until an item is removed by get().
|
||||
|
||||
Unlike the standard library Queue, you can reliably know this Queue's size
|
||||
with qsize(), since your single-threaded Tulip application won't be
|
||||
interrupted between calling qsize() and doing an operation on the Queue.
|
||||
"""
|
||||
|
||||
def __init__(self, maxsize=0, *, loop=None):
|
||||
if loop is None:
|
||||
self._loop = events.get_event_loop()
|
||||
else:
|
||||
self._loop = loop
|
||||
self._maxsize = maxsize
|
||||
|
||||
# Futures.
|
||||
self._getters = collections.deque()
|
||||
# Pairs of (item, Future).
|
||||
self._putters = collections.deque()
|
||||
self._init(maxsize)
|
||||
|
||||
def _init(self, maxsize):
|
||||
self._queue = collections.deque()
|
||||
|
||||
def _get(self):
|
||||
return self._queue.popleft()
|
||||
|
||||
def _put(self, item):
|
||||
self._queue.append(item)
|
||||
|
||||
def __repr__(self):
|
||||
return '<{} at {:#x} {}>'.format(
|
||||
type(self).__name__, id(self), self._format())
|
||||
|
||||
def __str__(self):
|
||||
return '<{} {}>'.format(type(self).__name__, self._format())
|
||||
|
||||
def _format(self):
|
||||
result = 'maxsize={!r}'.format(self._maxsize)
|
||||
if getattr(self, '_queue', None):
|
||||
result += ' _queue={!r}'.format(list(self._queue))
|
||||
if self._getters:
|
||||
result += ' _getters[{}]'.format(len(self._getters))
|
||||
if self._putters:
|
||||
result += ' _putters[{}]'.format(len(self._putters))
|
||||
return result
|
||||
|
||||
def _consume_done_getters(self):
|
||||
# Delete waiters at the head of the get() queue who've timed out.
|
||||
while self._getters and self._getters[0].done():
|
||||
self._getters.popleft()
|
||||
|
||||
def _consume_done_putters(self):
|
||||
# Delete waiters at the head of the put() queue who've timed out.
|
||||
while self._putters and self._putters[0][1].done():
|
||||
self._putters.popleft()
|
||||
|
||||
def qsize(self):
|
||||
"""Number of items in the queue."""
|
||||
return len(self._queue)
|
||||
|
||||
@property
|
||||
def maxsize(self):
|
||||
"""Number of items allowed in the queue."""
|
||||
return self._maxsize
|
||||
|
||||
def empty(self):
|
||||
"""Return True if the queue is empty, False otherwise."""
|
||||
return not self._queue
|
||||
|
||||
def full(self):
|
||||
"""Return True if there are maxsize items in the queue.
|
||||
|
||||
Note: if the Queue was initialized with maxsize=0 (the default),
|
||||
then full() is never True.
|
||||
"""
|
||||
if self._maxsize <= 0:
|
||||
return False
|
||||
else:
|
||||
return self.qsize() == self._maxsize
|
||||
|
||||
@coroutine
|
||||
def put(self, item):
|
||||
"""Put an item into the queue.
|
||||
|
||||
If you yield from put(), wait until a free slot is available
|
||||
before adding item.
|
||||
"""
|
||||
self._consume_done_getters()
|
||||
if self._getters:
|
||||
assert not self._queue, (
|
||||
'queue non-empty, why are getters waiting?')
|
||||
|
||||
getter = self._getters.popleft()
|
||||
|
||||
# Use _put and _get instead of passing item straight to getter, in
|
||||
# case a subclass has logic that must run (e.g. JoinableQueue).
|
||||
self._put(item)
|
||||
getter.set_result(self._get())
|
||||
|
||||
elif self._maxsize > 0 and self._maxsize == self.qsize():
|
||||
waiter = futures.Future(loop=self._loop)
|
||||
|
||||
self._putters.append((item, waiter))
|
||||
yield from waiter
|
||||
|
||||
else:
|
||||
self._put(item)
|
||||
|
||||
def put_nowait(self, item):
|
||||
"""Put an item into the queue without blocking.
|
||||
|
||||
If no free slot is immediately available, raise Full.
|
||||
"""
|
||||
self._consume_done_getters()
|
||||
if self._getters:
|
||||
assert not self._queue, (
|
||||
'queue non-empty, why are getters waiting?')
|
||||
|
||||
getter = self._getters.popleft()
|
||||
|
||||
# Use _put and _get instead of passing item straight to getter, in
|
||||
# case a subclass has logic that must run (e.g. JoinableQueue).
|
||||
self._put(item)
|
||||
getter.set_result(self._get())
|
||||
|
||||
elif self._maxsize > 0 and self._maxsize == self.qsize():
|
||||
raise Full
|
||||
else:
|
||||
self._put(item)
|
||||
|
||||
@coroutine
|
||||
def get(self):
|
||||
"""Remove and return an item from the queue.
|
||||
|
||||
If you yield from get(), wait until a item is available.
|
||||
"""
|
||||
self._consume_done_putters()
|
||||
if self._putters:
|
||||
assert self.full(), 'queue not full, why are putters waiting?'
|
||||
item, putter = self._putters.popleft()
|
||||
self._put(item)
|
||||
|
||||
# When a getter runs and frees up a slot so this putter can
|
||||
# run, we need to defer the put for a tick to ensure that
|
||||
# getters and putters alternate perfectly. See
|
||||
# ChannelTest.test_wait.
|
||||
self._loop.call_soon(putter.set_result, None)
|
||||
|
||||
return self._get()
|
||||
|
||||
elif self.qsize():
|
||||
return self._get()
|
||||
else:
|
||||
waiter = futures.Future(loop=self._loop)
|
||||
|
||||
self._getters.append(waiter)
|
||||
return (yield from waiter)
|
||||
|
||||
def get_nowait(self):
|
||||
"""Remove and return an item from the queue.
|
||||
|
||||
Return an item if one is immediately available, else raise Full.
|
||||
"""
|
||||
self._consume_done_putters()
|
||||
if self._putters:
|
||||
assert self.full(), 'queue not full, why are putters waiting?'
|
||||
item, putter = self._putters.popleft()
|
||||
self._put(item)
|
||||
# Wake putter on next tick.
|
||||
putter.set_result(None)
|
||||
|
||||
return self._get()
|
||||
|
||||
elif self.qsize():
|
||||
return self._get()
|
||||
else:
|
||||
raise Empty
|
||||
|
||||
|
||||
class PriorityQueue(Queue):
|
||||
"""A subclass of Queue; retrieves entries in priority order (lowest first).
|
||||
|
||||
Entries are typically tuples of the form: (priority number, data).
|
||||
"""
|
||||
|
||||
def _init(self, maxsize):
|
||||
self._queue = []
|
||||
|
||||
def _put(self, item, heappush=heapq.heappush):
|
||||
heappush(self._queue, item)
|
||||
|
||||
def _get(self, heappop=heapq.heappop):
|
||||
return heappop(self._queue)
|
||||
|
||||
|
||||
class LifoQueue(Queue):
|
||||
"""A subclass of Queue that retrieves most recently added entries first."""
|
||||
|
||||
def _init(self, maxsize):
|
||||
self._queue = []
|
||||
|
||||
def _put(self, item):
|
||||
self._queue.append(item)
|
||||
|
||||
def _get(self):
|
||||
return self._queue.pop()
|
||||
|
||||
|
||||
class JoinableQueue(Queue):
|
||||
"""A subclass of Queue with task_done() and join() methods."""
|
||||
|
||||
def __init__(self, maxsize=0, *, loop=None):
|
||||
super().__init__(maxsize=maxsize, loop=loop)
|
||||
self._unfinished_tasks = 0
|
||||
self._finished = locks.Event(loop=self._loop)
|
||||
self._finished.set()
|
||||
|
||||
def _format(self):
|
||||
result = Queue._format(self)
|
||||
if self._unfinished_tasks:
|
||||
result += ' tasks={}'.format(self._unfinished_tasks)
|
||||
return result
|
||||
|
||||
def _put(self, item):
|
||||
super()._put(item)
|
||||
self._unfinished_tasks += 1
|
||||
self._finished.clear()
|
||||
|
||||
def task_done(self):
|
||||
"""Indicate that a formerly enqueued task is complete.
|
||||
|
||||
Used by queue consumers. For each get() used to fetch a task,
|
||||
a subsequent call to task_done() tells the queue that the processing
|
||||
on the task is complete.
|
||||
|
||||
If a join() is currently blocking, it will resume when all items have
|
||||
been processed (meaning that a task_done() call was received for every
|
||||
item that had been put() into the queue).
|
||||
|
||||
Raises ValueError if called more times than there were items placed in
|
||||
the queue.
|
||||
"""
|
||||
if self._unfinished_tasks <= 0:
|
||||
raise ValueError('task_done() called too many times')
|
||||
self._unfinished_tasks -= 1
|
||||
if self._unfinished_tasks == 0:
|
||||
self._finished.set()
|
||||
|
||||
@coroutine
|
||||
def join(self):
|
||||
"""Block until all items in the queue have been gotten and processed.
|
||||
|
||||
The count of unfinished tasks goes up whenever an item is added to the
|
||||
queue. The count goes down whenever a consumer thread calls task_done()
|
||||
to indicate that the item was retrieved and all work on it is complete.
|
||||
When the count of unfinished tasks drops to zero, join() unblocks.
|
||||
"""
|
||||
if self._unfinished_tasks > 0:
|
||||
yield from self._finished.wait()
|
||||
|
|
@ -0,0 +1,769 @@
|
|||
"""Event loop using a selector and related classes.
|
||||
|
||||
A selector is a "notify-when-ready" multiplexer. For a subclass which
|
||||
also includes support for signal handling, see the unix_events sub-module.
|
||||
"""
|
||||
|
||||
import collections
|
||||
import socket
|
||||
try:
|
||||
import ssl
|
||||
except ImportError: # pragma: no cover
|
||||
ssl = None
|
||||
|
||||
from . import base_events
|
||||
from . import constants
|
||||
from . import events
|
||||
from . import futures
|
||||
from . import selectors
|
||||
from . import transports
|
||||
from .log import asyncio_log
|
||||
|
||||
|
||||
class BaseSelectorEventLoop(base_events.BaseEventLoop):
|
||||
"""Selector event loop.
|
||||
|
||||
See events.EventLoop for API specification.
|
||||
"""
|
||||
|
||||
def __init__(self, selector=None):
|
||||
super().__init__()
|
||||
|
||||
if selector is None:
|
||||
selector = selectors.DefaultSelector()
|
||||
asyncio_log.debug('Using selector: %s', selector.__class__.__name__)
|
||||
self._selector = selector
|
||||
self._make_self_pipe()
|
||||
|
||||
def _make_socket_transport(self, sock, protocol, waiter=None, *,
|
||||
extra=None, server=None):
|
||||
return _SelectorSocketTransport(self, sock, protocol, waiter,
|
||||
extra, server)
|
||||
|
||||
def _make_ssl_transport(self, rawsock, protocol, sslcontext, waiter, *,
|
||||
server_side=False, server_hostname=None,
|
||||
extra=None, server=None):
|
||||
return _SelectorSslTransport(
|
||||
self, rawsock, protocol, sslcontext, waiter,
|
||||
server_side, server_hostname, extra, server)
|
||||
|
||||
def _make_datagram_transport(self, sock, protocol,
|
||||
address=None, extra=None):
|
||||
return _SelectorDatagramTransport(self, sock, protocol, address, extra)
|
||||
|
||||
def close(self):
|
||||
if self._selector is not None:
|
||||
self._close_self_pipe()
|
||||
self._selector.close()
|
||||
self._selector = None
|
||||
|
||||
def _socketpair(self):
|
||||
raise NotImplementedError
|
||||
|
||||
def _close_self_pipe(self):
|
||||
self.remove_reader(self._ssock.fileno())
|
||||
self._ssock.close()
|
||||
self._ssock = None
|
||||
self._csock.close()
|
||||
self._csock = None
|
||||
self._internal_fds -= 1
|
||||
|
||||
def _make_self_pipe(self):
|
||||
# A self-socket, really. :-)
|
||||
self._ssock, self._csock = self._socketpair()
|
||||
self._ssock.setblocking(False)
|
||||
self._csock.setblocking(False)
|
||||
self._internal_fds += 1
|
||||
self.add_reader(self._ssock.fileno(), self._read_from_self)
|
||||
|
||||
def _read_from_self(self):
|
||||
try:
|
||||
self._ssock.recv(1)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
pass
|
||||
|
||||
def _write_to_self(self):
|
||||
try:
|
||||
self._csock.send(b'x')
|
||||
except (BlockingIOError, InterruptedError):
|
||||
pass
|
||||
|
||||
def _start_serving(self, protocol_factory, sock, ssl=None, server=None):
|
||||
self.add_reader(sock.fileno(), self._accept_connection,
|
||||
protocol_factory, sock, ssl, server)
|
||||
|
||||
def _accept_connection(self, protocol_factory, sock, ssl=None,
|
||||
server=None):
|
||||
try:
|
||||
conn, addr = sock.accept()
|
||||
conn.setblocking(False)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
pass # False alarm.
|
||||
except Exception:
|
||||
# Bad error. Stop serving.
|
||||
self.remove_reader(sock.fileno())
|
||||
sock.close()
|
||||
# There's nowhere to send the error, so just log it.
|
||||
# TODO: Someone will want an error handler for this.
|
||||
asyncio_log.exception('Accept failed')
|
||||
else:
|
||||
if ssl:
|
||||
self._make_ssl_transport(
|
||||
conn, protocol_factory(), ssl, None,
|
||||
server_side=True, extra={'peername': addr}, server=server)
|
||||
else:
|
||||
self._make_socket_transport(
|
||||
conn, protocol_factory(), extra={'peername': addr},
|
||||
server=server)
|
||||
# It's now up to the protocol to handle the connection.
|
||||
|
||||
def add_reader(self, fd, callback, *args):
|
||||
"""Add a reader callback."""
|
||||
handle = events.make_handle(callback, args)
|
||||
try:
|
||||
key = self._selector.get_key(fd)
|
||||
except KeyError:
|
||||
self._selector.register(fd, selectors.EVENT_READ,
|
||||
(handle, None))
|
||||
else:
|
||||
mask, (reader, writer) = key.events, key.data
|
||||
self._selector.modify(fd, mask | selectors.EVENT_READ,
|
||||
(handle, writer))
|
||||
if reader is not None:
|
||||
reader.cancel()
|
||||
|
||||
def remove_reader(self, fd):
|
||||
"""Remove a reader callback."""
|
||||
try:
|
||||
key = self._selector.get_key(fd)
|
||||
except KeyError:
|
||||
return False
|
||||
else:
|
||||
mask, (reader, writer) = key.events, key.data
|
||||
mask &= ~selectors.EVENT_READ
|
||||
if not mask:
|
||||
self._selector.unregister(fd)
|
||||
else:
|
||||
self._selector.modify(fd, mask, (None, writer))
|
||||
|
||||
if reader is not None:
|
||||
reader.cancel()
|
||||
return True
|
||||
else:
|
||||
return False
|
||||
|
||||
def add_writer(self, fd, callback, *args):
|
||||
"""Add a writer callback.."""
|
||||
handle = events.make_handle(callback, args)
|
||||
try:
|
||||
key = self._selector.get_key(fd)
|
||||
except KeyError:
|
||||
self._selector.register(fd, selectors.EVENT_WRITE,
|
||||
(None, handle))
|
||||
else:
|
||||
mask, (reader, writer) = key.events, key.data
|
||||
self._selector.modify(fd, mask | selectors.EVENT_WRITE,
|
||||
(reader, handle))
|
||||
if writer is not None:
|
||||
writer.cancel()
|
||||
|
||||
def remove_writer(self, fd):
|
||||
"""Remove a writer callback."""
|
||||
try:
|
||||
key = self._selector.get_key(fd)
|
||||
except KeyError:
|
||||
return False
|
||||
else:
|
||||
mask, (reader, writer) = key.events, key.data
|
||||
# Remove both writer and connector.
|
||||
mask &= ~selectors.EVENT_WRITE
|
||||
if not mask:
|
||||
self._selector.unregister(fd)
|
||||
else:
|
||||
self._selector.modify(fd, mask, (reader, None))
|
||||
|
||||
if writer is not None:
|
||||
writer.cancel()
|
||||
return True
|
||||
else:
|
||||
return False
|
||||
|
||||
def sock_recv(self, sock, n):
|
||||
"""XXX"""
|
||||
fut = futures.Future(loop=self)
|
||||
self._sock_recv(fut, False, sock, n)
|
||||
return fut
|
||||
|
||||
def _sock_recv(self, fut, registered, sock, n):
|
||||
fd = sock.fileno()
|
||||
if registered:
|
||||
# Remove the callback early. It should be rare that the
|
||||
# selector says the fd is ready but the call still returns
|
||||
# EAGAIN, and I am willing to take a hit in that case in
|
||||
# order to simplify the common case.
|
||||
self.remove_reader(fd)
|
||||
if fut.cancelled():
|
||||
return
|
||||
try:
|
||||
data = sock.recv(n)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
self.add_reader(fd, self._sock_recv, fut, True, sock, n)
|
||||
except Exception as exc:
|
||||
fut.set_exception(exc)
|
||||
else:
|
||||
fut.set_result(data)
|
||||
|
||||
def sock_sendall(self, sock, data):
|
||||
"""XXX"""
|
||||
fut = futures.Future(loop=self)
|
||||
if data:
|
||||
self._sock_sendall(fut, False, sock, data)
|
||||
else:
|
||||
fut.set_result(None)
|
||||
return fut
|
||||
|
||||
def _sock_sendall(self, fut, registered, sock, data):
|
||||
fd = sock.fileno()
|
||||
|
||||
if registered:
|
||||
self.remove_writer(fd)
|
||||
if fut.cancelled():
|
||||
return
|
||||
|
||||
try:
|
||||
n = sock.send(data)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
n = 0
|
||||
except Exception as exc:
|
||||
fut.set_exception(exc)
|
||||
return
|
||||
|
||||
if n == len(data):
|
||||
fut.set_result(None)
|
||||
else:
|
||||
if n:
|
||||
data = data[n:]
|
||||
self.add_writer(fd, self._sock_sendall, fut, True, sock, data)
|
||||
|
||||
def sock_connect(self, sock, address):
|
||||
"""XXX"""
|
||||
# That address better not require a lookup! We're not calling
|
||||
# self.getaddrinfo() for you here. But verifying this is
|
||||
# complicated; the socket module doesn't have a pattern for
|
||||
# IPv6 addresses (there are too many forms, apparently).
|
||||
fut = futures.Future(loop=self)
|
||||
self._sock_connect(fut, False, sock, address)
|
||||
return fut
|
||||
|
||||
def _sock_connect(self, fut, registered, sock, address):
|
||||
# TODO: Use getaddrinfo() to look up the address, to avoid the
|
||||
# trap of hanging the entire event loop when the address
|
||||
# requires doing a DNS lookup. (OTOH, the caller should
|
||||
# already have done this, so it would be nice if we could
|
||||
# easily tell whether the address needs looking up or not. I
|
||||
# know how to do this for IPv4, but IPv6 addresses have many
|
||||
# syntaxes.)
|
||||
fd = sock.fileno()
|
||||
if registered:
|
||||
self.remove_writer(fd)
|
||||
if fut.cancelled():
|
||||
return
|
||||
try:
|
||||
if not registered:
|
||||
# First time around.
|
||||
sock.connect(address)
|
||||
else:
|
||||
err = sock.getsockopt(socket.SOL_SOCKET, socket.SO_ERROR)
|
||||
if err != 0:
|
||||
# Jump to the except clause below.
|
||||
raise OSError(err, 'Connect call failed')
|
||||
except (BlockingIOError, InterruptedError):
|
||||
self.add_writer(fd, self._sock_connect, fut, True, sock, address)
|
||||
except Exception as exc:
|
||||
fut.set_exception(exc)
|
||||
else:
|
||||
fut.set_result(None)
|
||||
|
||||
def sock_accept(self, sock):
|
||||
"""XXX"""
|
||||
fut = futures.Future(loop=self)
|
||||
self._sock_accept(fut, False, sock)
|
||||
return fut
|
||||
|
||||
def _sock_accept(self, fut, registered, sock):
|
||||
fd = sock.fileno()
|
||||
if registered:
|
||||
self.remove_reader(fd)
|
||||
if fut.cancelled():
|
||||
return
|
||||
try:
|
||||
conn, address = sock.accept()
|
||||
conn.setblocking(False)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
self.add_reader(fd, self._sock_accept, fut, True, sock)
|
||||
except Exception as exc:
|
||||
fut.set_exception(exc)
|
||||
else:
|
||||
fut.set_result((conn, address))
|
||||
|
||||
def _process_events(self, event_list):
|
||||
for key, mask in event_list:
|
||||
fileobj, (reader, writer) = key.fileobj, key.data
|
||||
if mask & selectors.EVENT_READ and reader is not None:
|
||||
if reader._cancelled:
|
||||
self.remove_reader(fileobj)
|
||||
else:
|
||||
self._add_callback(reader)
|
||||
if mask & selectors.EVENT_WRITE and writer is not None:
|
||||
if writer._cancelled:
|
||||
self.remove_writer(fileobj)
|
||||
else:
|
||||
self._add_callback(writer)
|
||||
|
||||
def _stop_serving(self, sock):
|
||||
self.remove_reader(sock.fileno())
|
||||
sock.close()
|
||||
|
||||
|
||||
class _SelectorTransport(transports.Transport):
|
||||
|
||||
max_size = 256 * 1024 # Buffer size passed to recv().
|
||||
|
||||
def __init__(self, loop, sock, protocol, extra, server=None):
|
||||
super().__init__(extra)
|
||||
self._extra['socket'] = sock
|
||||
self._extra['sockname'] = sock.getsockname()
|
||||
if 'peername' not in self._extra:
|
||||
try:
|
||||
self._extra['peername'] = sock.getpeername()
|
||||
except socket.error:
|
||||
self._extra['peername'] = None
|
||||
self._loop = loop
|
||||
self._sock = sock
|
||||
self._sock_fd = sock.fileno()
|
||||
self._protocol = protocol
|
||||
self._server = server
|
||||
self._buffer = collections.deque()
|
||||
self._conn_lost = 0
|
||||
self._closing = False # Set when close() called.
|
||||
if server is not None:
|
||||
server.attach(self)
|
||||
|
||||
def abort(self):
|
||||
self._force_close(None)
|
||||
|
||||
def close(self):
|
||||
if self._closing:
|
||||
return
|
||||
self._closing = True
|
||||
self._conn_lost += 1
|
||||
self._loop.remove_reader(self._sock_fd)
|
||||
if not self._buffer:
|
||||
self._loop.call_soon(self._call_connection_lost, None)
|
||||
|
||||
def _fatal_error(self, exc):
|
||||
# should be called from exception handler only
|
||||
asyncio_log.exception('Fatal error for %s', self)
|
||||
self._force_close(exc)
|
||||
|
||||
def _force_close(self, exc):
|
||||
if self._buffer:
|
||||
self._buffer.clear()
|
||||
self._loop.remove_writer(self._sock_fd)
|
||||
|
||||
if self._closing:
|
||||
return
|
||||
|
||||
self._closing = True
|
||||
self._conn_lost += 1
|
||||
self._loop.remove_reader(self._sock_fd)
|
||||
self._loop.call_soon(self._call_connection_lost, exc)
|
||||
|
||||
def _call_connection_lost(self, exc):
|
||||
try:
|
||||
self._protocol.connection_lost(exc)
|
||||
finally:
|
||||
self._sock.close()
|
||||
self._sock = None
|
||||
self._protocol = None
|
||||
self._loop = None
|
||||
server = self._server
|
||||
if server is not None:
|
||||
server.detach(self)
|
||||
self._server = None
|
||||
|
||||
|
||||
class _SelectorSocketTransport(_SelectorTransport):
|
||||
|
||||
def __init__(self, loop, sock, protocol, waiter=None,
|
||||
extra=None, server=None):
|
||||
super().__init__(loop, sock, protocol, extra, server)
|
||||
self._eof = False
|
||||
self._paused = False
|
||||
|
||||
self._loop.add_reader(self._sock_fd, self._read_ready)
|
||||
self._loop.call_soon(self._protocol.connection_made, self)
|
||||
if waiter is not None:
|
||||
self._loop.call_soon(waiter.set_result, None)
|
||||
|
||||
def pause(self):
|
||||
assert not self._closing, 'Cannot pause() when closing'
|
||||
assert not self._paused, 'Already paused'
|
||||
self._paused = True
|
||||
self._loop.remove_reader(self._sock_fd)
|
||||
|
||||
def resume(self):
|
||||
assert self._paused, 'Not paused'
|
||||
self._paused = False
|
||||
if self._closing:
|
||||
return
|
||||
self._loop.add_reader(self._sock_fd, self._read_ready)
|
||||
|
||||
def _read_ready(self):
|
||||
try:
|
||||
data = self._sock.recv(self.max_size)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
pass
|
||||
except ConnectionResetError as exc:
|
||||
self._force_close(exc)
|
||||
except Exception as exc:
|
||||
self._fatal_error(exc)
|
||||
else:
|
||||
if data:
|
||||
self._protocol.data_received(data)
|
||||
else:
|
||||
keep_open = self._protocol.eof_received()
|
||||
if not keep_open:
|
||||
self.close()
|
||||
|
||||
def write(self, data):
|
||||
assert isinstance(data, bytes), repr(type(data))
|
||||
assert not self._eof, 'Cannot call write() after write_eof()'
|
||||
if not data:
|
||||
return
|
||||
|
||||
if self._conn_lost:
|
||||
if self._conn_lost >= constants.LOG_THRESHOLD_FOR_CONNLOST_WRITES:
|
||||
asyncio_log.warning('socket.send() raised exception.')
|
||||
self._conn_lost += 1
|
||||
return
|
||||
|
||||
if not self._buffer:
|
||||
# Attempt to send it right away first.
|
||||
try:
|
||||
n = self._sock.send(data)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
n = 0
|
||||
except (BrokenPipeError, ConnectionResetError) as exc:
|
||||
self._force_close(exc)
|
||||
return
|
||||
except OSError as exc:
|
||||
self._fatal_error(exc)
|
||||
return
|
||||
else:
|
||||
data = data[n:]
|
||||
if not data:
|
||||
return
|
||||
# Start async I/O.
|
||||
self._loop.add_writer(self._sock_fd, self._write_ready)
|
||||
|
||||
self._buffer.append(data)
|
||||
|
||||
def _write_ready(self):
|
||||
data = b''.join(self._buffer)
|
||||
assert data, 'Data should not be empty'
|
||||
|
||||
self._buffer.clear()
|
||||
try:
|
||||
n = self._sock.send(data)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
self._buffer.append(data)
|
||||
except (BrokenPipeError, ConnectionResetError) as exc:
|
||||
self._loop.remove_writer(self._sock_fd)
|
||||
self._force_close(exc)
|
||||
except Exception as exc:
|
||||
self._loop.remove_writer(self._sock_fd)
|
||||
self._fatal_error(exc)
|
||||
else:
|
||||
data = data[n:]
|
||||
if not data:
|
||||
self._loop.remove_writer(self._sock_fd)
|
||||
if self._closing:
|
||||
self._call_connection_lost(None)
|
||||
elif self._eof:
|
||||
self._sock.shutdown(socket.SHUT_WR)
|
||||
return
|
||||
|
||||
self._buffer.append(data) # Try again later.
|
||||
|
||||
def write_eof(self):
|
||||
if self._eof:
|
||||
return
|
||||
self._eof = True
|
||||
if not self._buffer:
|
||||
self._sock.shutdown(socket.SHUT_WR)
|
||||
|
||||
def can_write_eof(self):
|
||||
return True
|
||||
|
||||
|
||||
class _SelectorSslTransport(_SelectorTransport):
|
||||
|
||||
def __init__(self, loop, rawsock, protocol, sslcontext, waiter=None,
|
||||
server_side=False, server_hostname=None,
|
||||
extra=None, server=None):
|
||||
if server_side:
|
||||
assert isinstance(
|
||||
sslcontext, ssl.SSLContext), 'Must pass an SSLContext'
|
||||
else:
|
||||
# Client-side may pass ssl=True to use a default context.
|
||||
# The default is the same as used by urllib.
|
||||
if sslcontext is None:
|
||||
sslcontext = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
|
||||
sslcontext.options |= ssl.OP_NO_SSLv2
|
||||
sslcontext.set_default_verify_paths()
|
||||
sslcontext.verify_mode = ssl.CERT_REQUIRED
|
||||
wrap_kwargs = {
|
||||
'server_side': server_side,
|
||||
'do_handshake_on_connect': False,
|
||||
}
|
||||
if server_hostname is not None and not server_side and ssl.HAS_SNI:
|
||||
wrap_kwargs['server_hostname'] = server_hostname
|
||||
sslsock = sslcontext.wrap_socket(rawsock, **wrap_kwargs)
|
||||
|
||||
super().__init__(loop, sslsock, protocol, extra, server)
|
||||
|
||||
self._server_hostname = server_hostname
|
||||
self._waiter = waiter
|
||||
self._rawsock = rawsock
|
||||
self._sslcontext = sslcontext
|
||||
self._paused = False
|
||||
|
||||
# SSL-specific extra info. (peercert is set later)
|
||||
self._extra.update(sslcontext=sslcontext)
|
||||
|
||||
self._on_handshake()
|
||||
|
||||
def _on_handshake(self):
|
||||
try:
|
||||
self._sock.do_handshake()
|
||||
except ssl.SSLWantReadError:
|
||||
self._loop.add_reader(self._sock_fd, self._on_handshake)
|
||||
return
|
||||
except ssl.SSLWantWriteError:
|
||||
self._loop.add_writer(self._sock_fd, self._on_handshake)
|
||||
return
|
||||
except Exception as exc:
|
||||
self._sock.close()
|
||||
if self._waiter is not None:
|
||||
self._waiter.set_exception(exc)
|
||||
return
|
||||
except BaseException as exc:
|
||||
self._sock.close()
|
||||
if self._waiter is not None:
|
||||
self._waiter.set_exception(exc)
|
||||
raise
|
||||
|
||||
# Verify hostname if requested.
|
||||
peercert = self._sock.getpeercert()
|
||||
if (self._server_hostname is not None and
|
||||
self._sslcontext.verify_mode == ssl.CERT_REQUIRED):
|
||||
try:
|
||||
ssl.match_hostname(peercert, self._server_hostname)
|
||||
except Exception as exc:
|
||||
self._sock.close()
|
||||
if self._waiter is not None:
|
||||
self._waiter.set_exception(exc)
|
||||
return
|
||||
|
||||
# Add extra info that becomes available after handshake.
|
||||
self._extra.update(peercert=peercert,
|
||||
cipher=self._sock.cipher(),
|
||||
compression=self._sock.compression(),
|
||||
)
|
||||
|
||||
self._loop.remove_reader(self._sock_fd)
|
||||
self._loop.remove_writer(self._sock_fd)
|
||||
self._loop.add_reader(self._sock_fd, self._on_ready)
|
||||
self._loop.add_writer(self._sock_fd, self._on_ready)
|
||||
self._loop.call_soon(self._protocol.connection_made, self)
|
||||
if self._waiter is not None:
|
||||
self._loop.call_soon(self._waiter.set_result, None)
|
||||
|
||||
def pause(self):
|
||||
# XXX This is a bit icky, given the comment at the top of
|
||||
# _on_ready(). Is it possible to evoke a deadlock? I don't
|
||||
# know, although it doesn't look like it; write() will still
|
||||
# accept more data for the buffer and eventually the app will
|
||||
# call resume() again, and things will flow again.
|
||||
|
||||
assert not self._closing, 'Cannot pause() when closing'
|
||||
assert not self._paused, 'Already paused'
|
||||
self._paused = True
|
||||
self._loop.remove_reader(self._sock_fd)
|
||||
|
||||
def resume(self):
|
||||
assert self._paused, 'Not paused'
|
||||
self._paused = False
|
||||
if self._closing:
|
||||
return
|
||||
self._loop.add_reader(self._sock_fd, self._on_ready)
|
||||
|
||||
def _on_ready(self):
|
||||
# Because of renegotiations (?), there's no difference between
|
||||
# readable and writable. We just try both. XXX This may be
|
||||
# incorrect; we probably need to keep state about what we
|
||||
# should do next.
|
||||
|
||||
# First try reading.
|
||||
if not self._closing and not self._paused:
|
||||
try:
|
||||
data = self._sock.recv(self.max_size)
|
||||
except (BlockingIOError, InterruptedError,
|
||||
ssl.SSLWantReadError, ssl.SSLWantWriteError):
|
||||
pass
|
||||
except ConnectionResetError as exc:
|
||||
self._force_close(exc)
|
||||
except Exception as exc:
|
||||
self._fatal_error(exc)
|
||||
else:
|
||||
if data:
|
||||
self._protocol.data_received(data)
|
||||
else:
|
||||
try:
|
||||
self._protocol.eof_received()
|
||||
finally:
|
||||
self.close()
|
||||
|
||||
# Now try writing, if there's anything to write.
|
||||
if self._buffer:
|
||||
data = b''.join(self._buffer)
|
||||
self._buffer.clear()
|
||||
try:
|
||||
n = self._sock.send(data)
|
||||
except (BlockingIOError, InterruptedError,
|
||||
ssl.SSLWantReadError, ssl.SSLWantWriteError):
|
||||
n = 0
|
||||
except (BrokenPipeError, ConnectionResetError) as exc:
|
||||
self._loop.remove_writer(self._sock_fd)
|
||||
self._force_close(exc)
|
||||
return
|
||||
except Exception as exc:
|
||||
self._loop.remove_writer(self._sock_fd)
|
||||
self._fatal_error(exc)
|
||||
return
|
||||
|
||||
if n < len(data):
|
||||
self._buffer.append(data[n:])
|
||||
|
||||
if self._closing and not self._buffer:
|
||||
self._loop.remove_writer(self._sock_fd)
|
||||
self._call_connection_lost(None)
|
||||
|
||||
def write(self, data):
|
||||
assert isinstance(data, bytes), repr(type(data))
|
||||
if not data:
|
||||
return
|
||||
|
||||
if self._conn_lost:
|
||||
if self._conn_lost >= constants.LOG_THRESHOLD_FOR_CONNLOST_WRITES:
|
||||
asyncio_log.warning('socket.send() raised exception.')
|
||||
self._conn_lost += 1
|
||||
return
|
||||
|
||||
self._buffer.append(data)
|
||||
# We could optimize, but the callback can do this for now.
|
||||
|
||||
def can_write_eof(self):
|
||||
return False
|
||||
|
||||
def close(self):
|
||||
if self._closing:
|
||||
return
|
||||
self._closing = True
|
||||
self._conn_lost += 1
|
||||
self._loop.remove_reader(self._sock_fd)
|
||||
|
||||
|
||||
class _SelectorDatagramTransport(_SelectorTransport):
|
||||
|
||||
def __init__(self, loop, sock, protocol, address=None, extra=None):
|
||||
super().__init__(loop, sock, protocol, extra)
|
||||
|
||||
self._address = address
|
||||
self._loop.add_reader(self._sock_fd, self._read_ready)
|
||||
self._loop.call_soon(self._protocol.connection_made, self)
|
||||
|
||||
def _read_ready(self):
|
||||
try:
|
||||
data, addr = self._sock.recvfrom(self.max_size)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
pass
|
||||
except Exception as exc:
|
||||
self._fatal_error(exc)
|
||||
else:
|
||||
self._protocol.datagram_received(data, addr)
|
||||
|
||||
def sendto(self, data, addr=None):
|
||||
assert isinstance(data, bytes), repr(type(data))
|
||||
if not data:
|
||||
return
|
||||
|
||||
if self._address:
|
||||
assert addr in (None, self._address)
|
||||
|
||||
if self._conn_lost and self._address:
|
||||
if self._conn_lost >= constants.LOG_THRESHOLD_FOR_CONNLOST_WRITES:
|
||||
asyncio_log.warning('socket.send() raised exception.')
|
||||
self._conn_lost += 1
|
||||
return
|
||||
|
||||
if not self._buffer:
|
||||
# Attempt to send it right away first.
|
||||
try:
|
||||
if self._address:
|
||||
self._sock.send(data)
|
||||
else:
|
||||
self._sock.sendto(data, addr)
|
||||
return
|
||||
except ConnectionRefusedError as exc:
|
||||
if self._address:
|
||||
self._fatal_error(exc)
|
||||
return
|
||||
except (BlockingIOError, InterruptedError):
|
||||
self._loop.add_writer(self._sock_fd, self._sendto_ready)
|
||||
except Exception as exc:
|
||||
self._fatal_error(exc)
|
||||
return
|
||||
|
||||
self._buffer.append((data, addr))
|
||||
|
||||
def _sendto_ready(self):
|
||||
while self._buffer:
|
||||
data, addr = self._buffer.popleft()
|
||||
try:
|
||||
if self._address:
|
||||
self._sock.send(data)
|
||||
else:
|
||||
self._sock.sendto(data, addr)
|
||||
except ConnectionRefusedError as exc:
|
||||
if self._address:
|
||||
self._fatal_error(exc)
|
||||
return
|
||||
except (BlockingIOError, InterruptedError):
|
||||
self._buffer.appendleft((data, addr)) # Try again later.
|
||||
break
|
||||
except Exception as exc:
|
||||
self._fatal_error(exc)
|
||||
return
|
||||
|
||||
if not self._buffer:
|
||||
self._loop.remove_writer(self._sock_fd)
|
||||
if self._closing:
|
||||
self._call_connection_lost(None)
|
||||
|
||||
def _force_close(self, exc):
|
||||
if self._address and isinstance(exc, ConnectionRefusedError):
|
||||
self._protocol.connection_refused(exc)
|
||||
|
||||
super()._force_close(exc)
|
||||
|
|
@ -0,0 +1,257 @@
|
|||
"""Stream-related things."""
|
||||
|
||||
__all__ = ['StreamReader', 'StreamReaderProtocol', 'open_connection']
|
||||
|
||||
import collections
|
||||
|
||||
from . import events
|
||||
from . import futures
|
||||
from . import protocols
|
||||
from . import tasks
|
||||
|
||||
|
||||
_DEFAULT_LIMIT = 2**16
|
||||
|
||||
|
||||
@tasks.coroutine
|
||||
def open_connection(host=None, port=None, *,
|
||||
loop=None, limit=_DEFAULT_LIMIT, **kwds):
|
||||
"""A wrapper for create_connection() returning a (reader, writer) pair.
|
||||
|
||||
The reader returned is a StreamReader instance; the writer is a
|
||||
Transport.
|
||||
|
||||
The arguments are all the usual arguments to create_connection()
|
||||
except protocol_factory; most common are positional host and port,
|
||||
with various optional keyword arguments following.
|
||||
|
||||
Additional optional keyword arguments are loop (to set the event loop
|
||||
instance to use) and limit (to set the buffer limit passed to the
|
||||
StreamReader).
|
||||
|
||||
(If you want to customize the StreamReader and/or
|
||||
StreamReaderProtocol classes, just copy the code -- there's
|
||||
really nothing special here except some convenience.)
|
||||
"""
|
||||
if loop is None:
|
||||
loop = events.get_event_loop()
|
||||
reader = StreamReader(limit=limit, loop=loop)
|
||||
protocol = StreamReaderProtocol(reader)
|
||||
transport, _ = yield from loop.create_connection(
|
||||
lambda: protocol, host, port, **kwds)
|
||||
return reader, transport # (reader, writer)
|
||||
|
||||
|
||||
class StreamReaderProtocol(protocols.Protocol):
|
||||
"""Trivial helper class to adapt between Protocol and StreamReader.
|
||||
|
||||
(This is a helper class instead of making StreamReader itself a
|
||||
Protocol subclass, because the StreamReader has other potential
|
||||
uses, and to prevent the user of the StreamReader to accidentally
|
||||
call inappropriate methods of the protocol.)
|
||||
"""
|
||||
|
||||
def __init__(self, stream_reader):
|
||||
self.stream_reader = stream_reader
|
||||
|
||||
def connection_made(self, transport):
|
||||
self.stream_reader.set_transport(transport)
|
||||
|
||||
def connection_lost(self, exc):
|
||||
if exc is None:
|
||||
self.stream_reader.feed_eof()
|
||||
else:
|
||||
self.stream_reader.set_exception(exc)
|
||||
|
||||
def data_received(self, data):
|
||||
self.stream_reader.feed_data(data)
|
||||
|
||||
def eof_received(self):
|
||||
self.stream_reader.feed_eof()
|
||||
|
||||
|
||||
class StreamReader:
|
||||
|
||||
def __init__(self, limit=_DEFAULT_LIMIT, loop=None):
|
||||
# The line length limit is a security feature;
|
||||
# it also doubles as half the buffer limit.
|
||||
self.limit = limit
|
||||
if loop is None:
|
||||
loop = events.get_event_loop()
|
||||
self.loop = loop
|
||||
self.buffer = collections.deque() # Deque of bytes objects.
|
||||
self.byte_count = 0 # Bytes in buffer.
|
||||
self.eof = False # Whether we're done.
|
||||
self.waiter = None # A future.
|
||||
self._exception = None
|
||||
self._transport = None
|
||||
self._paused = False
|
||||
|
||||
def exception(self):
|
||||
return self._exception
|
||||
|
||||
def set_exception(self, exc):
|
||||
self._exception = exc
|
||||
|
||||
waiter = self.waiter
|
||||
if waiter is not None:
|
||||
self.waiter = None
|
||||
if not waiter.cancelled():
|
||||
waiter.set_exception(exc)
|
||||
|
||||
def set_transport(self, transport):
|
||||
assert self._transport is None, 'Transport already set'
|
||||
self._transport = transport
|
||||
|
||||
def _maybe_resume_transport(self):
|
||||
if self._paused and self.byte_count <= self.limit:
|
||||
self._paused = False
|
||||
self._transport.resume()
|
||||
|
||||
def feed_eof(self):
|
||||
self.eof = True
|
||||
waiter = self.waiter
|
||||
if waiter is not None:
|
||||
self.waiter = None
|
||||
if not waiter.cancelled():
|
||||
waiter.set_result(True)
|
||||
|
||||
def feed_data(self, data):
|
||||
if not data:
|
||||
return
|
||||
|
||||
self.buffer.append(data)
|
||||
self.byte_count += len(data)
|
||||
|
||||
waiter = self.waiter
|
||||
if waiter is not None:
|
||||
self.waiter = None
|
||||
if not waiter.cancelled():
|
||||
waiter.set_result(False)
|
||||
|
||||
if (self._transport is not None and
|
||||
not self._paused and
|
||||
self.byte_count > 2*self.limit):
|
||||
try:
|
||||
self._transport.pause()
|
||||
except NotImplementedError:
|
||||
# The transport can't be paused.
|
||||
# We'll just have to buffer all data.
|
||||
# Forget the transport so we don't keep trying.
|
||||
self._transport = None
|
||||
else:
|
||||
self._paused = True
|
||||
|
||||
@tasks.coroutine
|
||||
def readline(self):
|
||||
if self._exception is not None:
|
||||
raise self._exception
|
||||
|
||||
parts = []
|
||||
parts_size = 0
|
||||
not_enough = True
|
||||
|
||||
while not_enough:
|
||||
while self.buffer and not_enough:
|
||||
data = self.buffer.popleft()
|
||||
ichar = data.find(b'\n')
|
||||
if ichar < 0:
|
||||
parts.append(data)
|
||||
parts_size += len(data)
|
||||
else:
|
||||
ichar += 1
|
||||
head, tail = data[:ichar], data[ichar:]
|
||||
if tail:
|
||||
self.buffer.appendleft(tail)
|
||||
not_enough = False
|
||||
parts.append(head)
|
||||
parts_size += len(head)
|
||||
|
||||
if parts_size > self.limit:
|
||||
self.byte_count -= parts_size
|
||||
self._maybe_resume_transport()
|
||||
raise ValueError('Line is too long')
|
||||
|
||||
if self.eof:
|
||||
break
|
||||
|
||||
if not_enough:
|
||||
assert self.waiter is None
|
||||
self.waiter = futures.Future(loop=self.loop)
|
||||
try:
|
||||
yield from self.waiter
|
||||
finally:
|
||||
self.waiter = None
|
||||
|
||||
line = b''.join(parts)
|
||||
self.byte_count -= parts_size
|
||||
self._maybe_resume_transport()
|
||||
|
||||
return line
|
||||
|
||||
@tasks.coroutine
|
||||
def read(self, n=-1):
|
||||
if self._exception is not None:
|
||||
raise self._exception
|
||||
|
||||
if not n:
|
||||
return b''
|
||||
|
||||
if n < 0:
|
||||
while not self.eof:
|
||||
assert not self.waiter
|
||||
self.waiter = futures.Future(loop=self.loop)
|
||||
try:
|
||||
yield from self.waiter
|
||||
finally:
|
||||
self.waiter = None
|
||||
else:
|
||||
if not self.byte_count and not self.eof:
|
||||
assert not self.waiter
|
||||
self.waiter = futures.Future(loop=self.loop)
|
||||
try:
|
||||
yield from self.waiter
|
||||
finally:
|
||||
self.waiter = None
|
||||
|
||||
if n < 0 or self.byte_count <= n:
|
||||
data = b''.join(self.buffer)
|
||||
self.buffer.clear()
|
||||
self.byte_count = 0
|
||||
self._maybe_resume_transport()
|
||||
return data
|
||||
|
||||
parts = []
|
||||
parts_bytes = 0
|
||||
while self.buffer and parts_bytes < n:
|
||||
data = self.buffer.popleft()
|
||||
data_bytes = len(data)
|
||||
if n < parts_bytes + data_bytes:
|
||||
data_bytes = n - parts_bytes
|
||||
data, rest = data[:data_bytes], data[data_bytes:]
|
||||
self.buffer.appendleft(rest)
|
||||
|
||||
parts.append(data)
|
||||
parts_bytes += data_bytes
|
||||
self.byte_count -= data_bytes
|
||||
self._maybe_resume_transport()
|
||||
|
||||
return b''.join(parts)
|
||||
|
||||
@tasks.coroutine
|
||||
def readexactly(self, n):
|
||||
if self._exception is not None:
|
||||
raise self._exception
|
||||
|
||||
if n <= 0:
|
||||
return b''
|
||||
|
||||
while self.byte_count < n and not self.eof:
|
||||
assert not self.waiter
|
||||
self.waiter = futures.Future(loop=self.loop)
|
||||
try:
|
||||
yield from self.waiter
|
||||
finally:
|
||||
self.waiter = None
|
||||
|
||||
return (yield from self.read(n))
|
||||
|
|
@ -0,0 +1,636 @@
|
|||
"""Support for tasks, coroutines and the scheduler."""
|
||||
|
||||
__all__ = ['coroutine', 'Task',
|
||||
'FIRST_COMPLETED', 'FIRST_EXCEPTION', 'ALL_COMPLETED',
|
||||
'wait', 'wait_for', 'as_completed', 'sleep', 'async',
|
||||
'gather',
|
||||
]
|
||||
|
||||
import collections
|
||||
import concurrent.futures
|
||||
import functools
|
||||
import inspect
|
||||
import linecache
|
||||
import traceback
|
||||
import weakref
|
||||
|
||||
from . import events
|
||||
from . import futures
|
||||
from .log import asyncio_log
|
||||
|
||||
# If you set _DEBUG to true, @coroutine will wrap the resulting
|
||||
# generator objects in a CoroWrapper instance (defined below). That
|
||||
# instance will log a message when the generator is never iterated
|
||||
# over, which may happen when you forget to use "yield from" with a
|
||||
# coroutine call. Note that the value of the _DEBUG flag is taken
|
||||
# when the decorator is used, so to be of any use it must be set
|
||||
# before you define your coroutines. A downside of using this feature
|
||||
# is that tracebacks show entries for the CoroWrapper.__next__ method
|
||||
# when _DEBUG is true.
|
||||
_DEBUG = False
|
||||
|
||||
|
||||
class CoroWrapper:
|
||||
"""Wrapper for coroutine in _DEBUG mode."""
|
||||
|
||||
__slot__ = ['gen', 'func']
|
||||
|
||||
def __init__(self, gen, func):
|
||||
assert inspect.isgenerator(gen), gen
|
||||
self.gen = gen
|
||||
self.func = func
|
||||
|
||||
def __iter__(self):
|
||||
return self
|
||||
|
||||
def __next__(self):
|
||||
return next(self.gen)
|
||||
|
||||
def send(self, value):
|
||||
return self.gen.send(value)
|
||||
|
||||
def throw(self, exc):
|
||||
return self.gen.throw(exc)
|
||||
|
||||
def close(self):
|
||||
return self.gen.close()
|
||||
|
||||
def __del__(self):
|
||||
frame = self.gen.gi_frame
|
||||
if frame is not None and frame.f_lasti == -1:
|
||||
func = self.func
|
||||
code = func.__code__
|
||||
filename = code.co_filename
|
||||
lineno = code.co_firstlineno
|
||||
asyncio_log.error('Coroutine %r defined at %s:%s was never yielded from',
|
||||
func.__name__, filename, lineno)
|
||||
|
||||
|
||||
def coroutine(func):
|
||||
"""Decorator to mark coroutines.
|
||||
|
||||
If the coroutine is not yielded from before it is destroyed,
|
||||
an error message is logged.
|
||||
"""
|
||||
if inspect.isgeneratorfunction(func):
|
||||
coro = func
|
||||
else:
|
||||
@functools.wraps(func)
|
||||
def coro(*args, **kw):
|
||||
res = func(*args, **kw)
|
||||
if isinstance(res, futures.Future) or inspect.isgenerator(res):
|
||||
res = yield from res
|
||||
return res
|
||||
|
||||
if not _DEBUG:
|
||||
wrapper = coro
|
||||
else:
|
||||
@functools.wraps(func)
|
||||
def wrapper(*args, **kwds):
|
||||
w = CoroWrapper(coro(*args, **kwds), func)
|
||||
w.__name__ = coro.__name__
|
||||
w.__doc__ = coro.__doc__
|
||||
return w
|
||||
|
||||
wrapper._is_coroutine = True # For iscoroutinefunction().
|
||||
return wrapper
|
||||
|
||||
|
||||
def iscoroutinefunction(func):
|
||||
"""Return True if func is a decorated coroutine function."""
|
||||
return getattr(func, '_is_coroutine', False)
|
||||
|
||||
|
||||
def iscoroutine(obj):
|
||||
"""Return True if obj is a coroutine object."""
|
||||
return isinstance(obj, CoroWrapper) or inspect.isgenerator(obj)
|
||||
|
||||
|
||||
class Task(futures.Future):
|
||||
"""A coroutine wrapped in a Future."""
|
||||
|
||||
# An important invariant maintained while a Task not done:
|
||||
#
|
||||
# - Either _fut_waiter is None, and _step() is scheduled;
|
||||
# - or _fut_waiter is some Future, and _step() is *not* scheduled.
|
||||
#
|
||||
# The only transition from the latter to the former is through
|
||||
# _wakeup(). When _fut_waiter is not None, one of its callbacks
|
||||
# must be _wakeup().
|
||||
|
||||
# Weak set containing all tasks alive.
|
||||
_all_tasks = weakref.WeakSet()
|
||||
|
||||
@classmethod
|
||||
def all_tasks(cls, loop=None):
|
||||
"""Return a set of all tasks for an event loop.
|
||||
|
||||
By default all tasks for the current event loop are returned.
|
||||
"""
|
||||
if loop is None:
|
||||
loop = events.get_event_loop()
|
||||
return {t for t in cls._all_tasks if t._loop is loop}
|
||||
|
||||
def __init__(self, coro, *, loop=None):
|
||||
assert iscoroutine(coro), repr(coro) # Not a coroutine function!
|
||||
super().__init__(loop=loop)
|
||||
self._coro = iter(coro) # Use the iterator just in case.
|
||||
self._fut_waiter = None
|
||||
self._must_cancel = False
|
||||
self._loop.call_soon(self._step)
|
||||
self.__class__._all_tasks.add(self)
|
||||
|
||||
def __repr__(self):
|
||||
res = super().__repr__()
|
||||
if (self._must_cancel and
|
||||
self._state == futures._PENDING and
|
||||
'<PENDING' in res):
|
||||
res = res.replace('<PENDING', '<CANCELLING', 1)
|
||||
i = res.find('<')
|
||||
if i < 0:
|
||||
i = len(res)
|
||||
res = res[:i] + '(<{}>)'.format(self._coro.__name__) + res[i:]
|
||||
return res
|
||||
|
||||
def get_stack(self, *, limit=None):
|
||||
"""Return the list of stack frames for this task's coroutine.
|
||||
|
||||
If the coroutine is active, this returns the stack where it is
|
||||
suspended. If the coroutine has completed successfully or was
|
||||
cancelled, this returns an empty list. If the coroutine was
|
||||
terminated by an exception, this returns the list of traceback
|
||||
frames.
|
||||
|
||||
The frames are always ordered from oldest to newest.
|
||||
|
||||
The optional limit gives the maximum nummber of frames to
|
||||
return; by default all available frames are returned. Its
|
||||
meaning differs depending on whether a stack or a traceback is
|
||||
returned: the newest frames of a stack are returned, but the
|
||||
oldest frames of a traceback are returned. (This matches the
|
||||
behavior of the traceback module.)
|
||||
|
||||
For reasons beyond our control, only one stack frame is
|
||||
returned for a suspended coroutine.
|
||||
"""
|
||||
frames = []
|
||||
f = self._coro.gi_frame
|
||||
if f is not None:
|
||||
while f is not None:
|
||||
if limit is not None:
|
||||
if limit <= 0:
|
||||
break
|
||||
limit -= 1
|
||||
frames.append(f)
|
||||
f = f.f_back
|
||||
frames.reverse()
|
||||
elif self._exception is not None:
|
||||
tb = self._exception.__traceback__
|
||||
while tb is not None:
|
||||
if limit is not None:
|
||||
if limit <= 0:
|
||||
break
|
||||
limit -= 1
|
||||
frames.append(tb.tb_frame)
|
||||
tb = tb.tb_next
|
||||
return frames
|
||||
|
||||
def print_stack(self, *, limit=None, file=None):
|
||||
"""Print the stack or traceback for this task's coroutine.
|
||||
|
||||
This produces output similar to that of the traceback module,
|
||||
for the frames retrieved by get_stack(). The limit argument
|
||||
is passed to get_stack(). The file argument is an I/O stream
|
||||
to which the output goes; by default it goes to sys.stderr.
|
||||
"""
|
||||
extracted_list = []
|
||||
checked = set()
|
||||
for f in self.get_stack(limit=limit):
|
||||
lineno = f.f_lineno
|
||||
co = f.f_code
|
||||
filename = co.co_filename
|
||||
name = co.co_name
|
||||
if filename not in checked:
|
||||
checked.add(filename)
|
||||
linecache.checkcache(filename)
|
||||
line = linecache.getline(filename, lineno, f.f_globals)
|
||||
extracted_list.append((filename, lineno, name, line))
|
||||
exc = self._exception
|
||||
if not extracted_list:
|
||||
print('No stack for %r' % self, file=file)
|
||||
elif exc is not None:
|
||||
print('Traceback for %r (most recent call last):' % self,
|
||||
file=file)
|
||||
else:
|
||||
print('Stack for %r (most recent call last):' % self,
|
||||
file=file)
|
||||
traceback.print_list(extracted_list, file=file)
|
||||
if exc is not None:
|
||||
for line in traceback.format_exception_only(exc.__class__, exc):
|
||||
print(line, file=file, end='')
|
||||
|
||||
def cancel(self):
|
||||
if self.done():
|
||||
return False
|
||||
if self._fut_waiter is not None:
|
||||
if self._fut_waiter.cancel():
|
||||
# Leave self._fut_waiter; it may be a Task that
|
||||
# catches and ignores the cancellation so we may have
|
||||
# to cancel it again later.
|
||||
return True
|
||||
# It must be the case that self._step is already scheduled.
|
||||
self._must_cancel = True
|
||||
return True
|
||||
|
||||
def _step(self, value=None, exc=None):
|
||||
assert not self.done(), \
|
||||
'_step(): already done: {!r}, {!r}, {!r}'.format(self, value, exc)
|
||||
if self._must_cancel:
|
||||
if not isinstance(exc, futures.CancelledError):
|
||||
exc = futures.CancelledError()
|
||||
self._must_cancel = False
|
||||
coro = self._coro
|
||||
self._fut_waiter = None
|
||||
# Call either coro.throw(exc) or coro.send(value).
|
||||
try:
|
||||
if exc is not None:
|
||||
result = coro.throw(exc)
|
||||
elif value is not None:
|
||||
result = coro.send(value)
|
||||
else:
|
||||
result = next(coro)
|
||||
except StopIteration as exc:
|
||||
self.set_result(exc.value)
|
||||
except futures.CancelledError as exc:
|
||||
super().cancel() # I.e., Future.cancel(self).
|
||||
except Exception as exc:
|
||||
self.set_exception(exc)
|
||||
except BaseException as exc:
|
||||
self.set_exception(exc)
|
||||
raise
|
||||
else:
|
||||
if isinstance(result, futures.Future):
|
||||
# Yielded Future must come from Future.__iter__().
|
||||
if result._blocking:
|
||||
result._blocking = False
|
||||
result.add_done_callback(self._wakeup)
|
||||
self._fut_waiter = result
|
||||
if self._must_cancel:
|
||||
if self._fut_waiter.cancel():
|
||||
self._must_cancel = False
|
||||
else:
|
||||
self._loop.call_soon(
|
||||
self._step, None,
|
||||
RuntimeError(
|
||||
'yield was used instead of yield from '
|
||||
'in task {!r} with {!r}'.format(self, result)))
|
||||
elif result is None:
|
||||
# Bare yield relinquishes control for one event loop iteration.
|
||||
self._loop.call_soon(self._step)
|
||||
elif inspect.isgenerator(result):
|
||||
# Yielding a generator is just wrong.
|
||||
self._loop.call_soon(
|
||||
self._step, None,
|
||||
RuntimeError(
|
||||
'yield was used instead of yield from for '
|
||||
'generator in task {!r} with {}'.format(
|
||||
self, result)))
|
||||
else:
|
||||
# Yielding something else is an error.
|
||||
self._loop.call_soon(
|
||||
self._step, None,
|
||||
RuntimeError(
|
||||
'Task got bad yield: {!r}'.format(result)))
|
||||
self = None
|
||||
|
||||
def _wakeup(self, future):
|
||||
try:
|
||||
value = future.result()
|
||||
except Exception as exc:
|
||||
# This may also be a cancellation.
|
||||
self._step(None, exc)
|
||||
else:
|
||||
self._step(value, None)
|
||||
self = None # Needed to break cycles when an exception occurs.
|
||||
|
||||
|
||||
# wait() and as_completed() similar to those in PEP 3148.
|
||||
|
||||
FIRST_COMPLETED = concurrent.futures.FIRST_COMPLETED
|
||||
FIRST_EXCEPTION = concurrent.futures.FIRST_EXCEPTION
|
||||
ALL_COMPLETED = concurrent.futures.ALL_COMPLETED
|
||||
|
||||
|
||||
@coroutine
|
||||
def wait(fs, *, loop=None, timeout=None, return_when=ALL_COMPLETED):
|
||||
"""Wait for the Futures and coroutines given by fs to complete.
|
||||
|
||||
Coroutines will be wrapped in Tasks.
|
||||
|
||||
Returns two sets of Future: (done, pending).
|
||||
|
||||
Usage:
|
||||
|
||||
done, pending = yield from asyncio.wait(fs)
|
||||
|
||||
Note: This does not raise TimeoutError! Futures that aren't done
|
||||
when the timeout occurs are returned in the second set.
|
||||
"""
|
||||
if not fs:
|
||||
raise ValueError('Set of coroutines/Futures is empty.')
|
||||
|
||||
if loop is None:
|
||||
loop = events.get_event_loop()
|
||||
|
||||
fs = set(async(f, loop=loop) for f in fs)
|
||||
|
||||
if return_when not in (FIRST_COMPLETED, FIRST_EXCEPTION, ALL_COMPLETED):
|
||||
raise ValueError('Invalid return_when value: {}'.format(return_when))
|
||||
return (yield from _wait(fs, timeout, return_when, loop))
|
||||
|
||||
|
||||
def _release_waiter(waiter, value=True, *args):
|
||||
if not waiter.done():
|
||||
waiter.set_result(value)
|
||||
|
||||
|
||||
@coroutine
|
||||
def wait_for(fut, timeout, *, loop=None):
|
||||
"""Wait for the single Future or coroutine to complete, with timeout.
|
||||
|
||||
Coroutine will be wrapped in Task.
|
||||
|
||||
Returns result of the Future or coroutine. Raises TimeoutError when
|
||||
timeout occurs.
|
||||
|
||||
Usage:
|
||||
|
||||
result = yield from asyncio.wait_for(fut, 10.0)
|
||||
|
||||
"""
|
||||
if loop is None:
|
||||
loop = events.get_event_loop()
|
||||
|
||||
waiter = futures.Future(loop=loop)
|
||||
timeout_handle = loop.call_later(timeout, _release_waiter, waiter, False)
|
||||
cb = functools.partial(_release_waiter, waiter, True)
|
||||
|
||||
fut = async(fut, loop=loop)
|
||||
fut.add_done_callback(cb)
|
||||
|
||||
try:
|
||||
if (yield from waiter):
|
||||
return fut.result()
|
||||
else:
|
||||
fut.remove_done_callback(cb)
|
||||
raise futures.TimeoutError()
|
||||
finally:
|
||||
timeout_handle.cancel()
|
||||
|
||||
|
||||
@coroutine
|
||||
def _wait(fs, timeout, return_when, loop):
|
||||
"""Internal helper for wait() and _wait_for().
|
||||
|
||||
The fs argument must be a collection of Futures.
|
||||
"""
|
||||
assert fs, 'Set of Futures is empty.'
|
||||
waiter = futures.Future(loop=loop)
|
||||
timeout_handle = None
|
||||
if timeout is not None:
|
||||
timeout_handle = loop.call_later(timeout, _release_waiter, waiter)
|
||||
counter = len(fs)
|
||||
|
||||
def _on_completion(f):
|
||||
nonlocal counter
|
||||
counter -= 1
|
||||
if (counter <= 0 or
|
||||
return_when == FIRST_COMPLETED or
|
||||
return_when == FIRST_EXCEPTION and (not f.cancelled() and
|
||||
f.exception() is not None)):
|
||||
if timeout_handle is not None:
|
||||
timeout_handle.cancel()
|
||||
if not waiter.done():
|
||||
waiter.set_result(False)
|
||||
|
||||
for f in fs:
|
||||
f.add_done_callback(_on_completion)
|
||||
|
||||
try:
|
||||
yield from waiter
|
||||
finally:
|
||||
if timeout_handle is not None:
|
||||
timeout_handle.cancel()
|
||||
|
||||
done, pending = set(), set()
|
||||
for f in fs:
|
||||
f.remove_done_callback(_on_completion)
|
||||
if f.done():
|
||||
done.add(f)
|
||||
else:
|
||||
pending.add(f)
|
||||
return done, pending
|
||||
|
||||
|
||||
# This is *not* a @coroutine! It is just an iterator (yielding Futures).
|
||||
def as_completed(fs, *, loop=None, timeout=None):
|
||||
"""Return an iterator whose values, when waited for, are Futures.
|
||||
|
||||
This differs from PEP 3148; the proper way to use this is:
|
||||
|
||||
for f in as_completed(fs):
|
||||
result = yield from f # The 'yield from' may raise.
|
||||
# Use result.
|
||||
|
||||
Raises TimeoutError if the timeout occurs before all Futures are
|
||||
done.
|
||||
|
||||
Note: The futures 'f' are not necessarily members of fs.
|
||||
"""
|
||||
loop = loop if loop is not None else events.get_event_loop()
|
||||
deadline = None if timeout is None else loop.time() + timeout
|
||||
todo = set(async(f, loop=loop) for f in fs)
|
||||
completed = collections.deque()
|
||||
|
||||
@coroutine
|
||||
def _wait_for_one():
|
||||
while not completed:
|
||||
timeout = None
|
||||
if deadline is not None:
|
||||
timeout = deadline - loop.time()
|
||||
if timeout < 0:
|
||||
raise futures.TimeoutError()
|
||||
done, pending = yield from _wait(
|
||||
todo, timeout, FIRST_COMPLETED, loop)
|
||||
# Multiple callers might be waiting for the same events
|
||||
# and getting the same outcome. Dedupe by updating todo.
|
||||
for f in done:
|
||||
if f in todo:
|
||||
todo.remove(f)
|
||||
completed.append(f)
|
||||
f = completed.popleft()
|
||||
return f.result() # May raise.
|
||||
|
||||
for _ in range(len(todo)):
|
||||
yield _wait_for_one()
|
||||
|
||||
|
||||
@coroutine
|
||||
def sleep(delay, result=None, *, loop=None):
|
||||
"""Coroutine that completes after a given time (in seconds)."""
|
||||
future = futures.Future(loop=loop)
|
||||
h = future._loop.call_later(delay, future.set_result, result)
|
||||
try:
|
||||
return (yield from future)
|
||||
finally:
|
||||
h.cancel()
|
||||
|
||||
|
||||
def async(coro_or_future, *, loop=None):
|
||||
"""Wrap a coroutine in a future.
|
||||
|
||||
If the argument is a Future, it is returned directly.
|
||||
"""
|
||||
if isinstance(coro_or_future, futures.Future):
|
||||
if loop is not None and loop is not coro_or_future._loop:
|
||||
raise ValueError('loop argument must agree with Future')
|
||||
return coro_or_future
|
||||
elif iscoroutine(coro_or_future):
|
||||
return Task(coro_or_future, loop=loop)
|
||||
else:
|
||||
raise TypeError('A Future or coroutine is required')
|
||||
|
||||
|
||||
class _GatheringFuture(futures.Future):
|
||||
"""Helper for gather().
|
||||
|
||||
This overrides cancel() to cancel all the children and act more
|
||||
like Task.cancel(), which doesn't immediately mark itself as
|
||||
cancelled.
|
||||
"""
|
||||
|
||||
def __init__(self, children, *, loop=None):
|
||||
super().__init__(loop=loop)
|
||||
self._children = children
|
||||
|
||||
def cancel(self):
|
||||
if self.done():
|
||||
return False
|
||||
for child in self._children:
|
||||
child.cancel()
|
||||
return True
|
||||
|
||||
|
||||
def gather(*coros_or_futures, loop=None, return_exceptions=False):
|
||||
"""Return a future aggregating results from the given coroutines
|
||||
or futures.
|
||||
|
||||
All futures must share the same event loop. If all the tasks are
|
||||
done successfully, the returned future's result is the list of
|
||||
results (in the order of the original sequence, not necessarily
|
||||
the order of results arrival). If *result_exception* is True,
|
||||
exceptions in the tasks are treated the same as successful
|
||||
results, and gathered in the result list; otherwise, the first
|
||||
raised exception will be immediately propagated to the returned
|
||||
future.
|
||||
|
||||
Cancellation: if the outer Future is cancelled, all children (that
|
||||
have not completed yet) are also cancelled. If any child is
|
||||
cancelled, this is treated as if it raised CancelledError --
|
||||
the outer Future is *not* cancelled in this case. (This is to
|
||||
prevent the cancellation of one child to cause other children to
|
||||
be cancelled.)
|
||||
"""
|
||||
children = [async(fut, loop=loop) for fut in coros_or_futures]
|
||||
n = len(children)
|
||||
if n == 0:
|
||||
outer = futures.Future(loop=loop)
|
||||
outer.set_result([])
|
||||
return outer
|
||||
if loop is None:
|
||||
loop = children[0]._loop
|
||||
for fut in children:
|
||||
if fut._loop is not loop:
|
||||
raise ValueError("futures are tied to different event loops")
|
||||
outer = _GatheringFuture(children, loop=loop)
|
||||
nfinished = 0
|
||||
results = [None] * n
|
||||
|
||||
def _done_callback(i, fut):
|
||||
nonlocal nfinished
|
||||
if outer._state != futures._PENDING:
|
||||
if fut._exception is not None:
|
||||
# Mark exception retrieved.
|
||||
fut.exception()
|
||||
return
|
||||
if fut._state == futures._CANCELLED:
|
||||
res = futures.CancelledError()
|
||||
if not return_exceptions:
|
||||
outer.set_exception(res)
|
||||
return
|
||||
elif fut._exception is not None:
|
||||
res = fut.exception() # Mark exception retrieved.
|
||||
if not return_exceptions:
|
||||
outer.set_exception(res)
|
||||
return
|
||||
else:
|
||||
res = fut._result
|
||||
results[i] = res
|
||||
nfinished += 1
|
||||
if nfinished == n:
|
||||
outer.set_result(results)
|
||||
|
||||
for i, fut in enumerate(children):
|
||||
fut.add_done_callback(functools.partial(_done_callback, i))
|
||||
return outer
|
||||
|
||||
|
||||
def shield(arg, *, loop=None):
|
||||
"""Wait for a future, shielding it from cancellation.
|
||||
|
||||
The statement
|
||||
|
||||
res = yield from shield(something())
|
||||
|
||||
is exactly equivalent to the statement
|
||||
|
||||
res = yield from something()
|
||||
|
||||
*except* that if the coroutine containing it is cancelled, the
|
||||
task running in something() is not cancelled. From the POV of
|
||||
something(), the cancellation did not happen. But its caller is
|
||||
still cancelled, so the yield-from expression still raises
|
||||
CancelledError. Note: If something() is cancelled by other means
|
||||
this will still cancel shield().
|
||||
|
||||
If you want to completely ignore cancellation (not recommended)
|
||||
you can combine shield() with a try/except clause, as follows:
|
||||
|
||||
try:
|
||||
res = yield from shield(something())
|
||||
except CancelledError:
|
||||
res = None
|
||||
"""
|
||||
inner = async(arg, loop=loop)
|
||||
if inner.done():
|
||||
# Shortcut.
|
||||
return inner
|
||||
loop = inner._loop
|
||||
outer = futures.Future(loop=loop)
|
||||
|
||||
def _done_callback(inner):
|
||||
if outer.cancelled():
|
||||
# Mark inner's result as retrieved.
|
||||
inner.cancelled() or inner.exception()
|
||||
return
|
||||
if inner.cancelled():
|
||||
outer.cancel()
|
||||
else:
|
||||
exc = inner.exception()
|
||||
if exc is not None:
|
||||
outer.set_exception(exc)
|
||||
else:
|
||||
outer.set_result(inner.result())
|
||||
|
||||
inner.add_done_callback(_done_callback)
|
||||
return outer
|
||||
|
|
@ -0,0 +1,246 @@
|
|||
"""Utilities shared by tests."""
|
||||
|
||||
import collections
|
||||
import contextlib
|
||||
import io
|
||||
import unittest.mock
|
||||
import os
|
||||
import sys
|
||||
import threading
|
||||
import unittest
|
||||
import unittest.mock
|
||||
from wsgiref.simple_server import make_server, WSGIRequestHandler, WSGIServer
|
||||
try:
|
||||
import ssl
|
||||
except ImportError: # pragma: no cover
|
||||
ssl = None
|
||||
|
||||
from . import tasks
|
||||
from . import base_events
|
||||
from . import events
|
||||
from . import selectors
|
||||
|
||||
|
||||
if sys.platform == 'win32': # pragma: no cover
|
||||
from .windows_utils import socketpair
|
||||
else:
|
||||
from socket import socketpair # pragma: no cover
|
||||
|
||||
|
||||
def dummy_ssl_context():
|
||||
if ssl is None:
|
||||
return None
|
||||
else:
|
||||
return ssl.SSLContext(ssl.PROTOCOL_SSLv23)
|
||||
|
||||
|
||||
def run_briefly(loop):
|
||||
@tasks.coroutine
|
||||
def once():
|
||||
pass
|
||||
gen = once()
|
||||
t = tasks.Task(gen, loop=loop)
|
||||
try:
|
||||
loop.run_until_complete(t)
|
||||
finally:
|
||||
gen.close()
|
||||
|
||||
|
||||
def run_once(loop):
|
||||
"""loop.stop() schedules _raise_stop_error()
|
||||
and run_forever() runs until _raise_stop_error() callback.
|
||||
this wont work if test waits for some IO events, because
|
||||
_raise_stop_error() runs before any of io events callbacks.
|
||||
"""
|
||||
loop.stop()
|
||||
loop.run_forever()
|
||||
|
||||
|
||||
@contextlib.contextmanager
|
||||
def run_test_server(*, host='127.0.0.1', port=0, use_ssl=False):
|
||||
|
||||
class SilentWSGIRequestHandler(WSGIRequestHandler):
|
||||
def get_stderr(self):
|
||||
return io.StringIO()
|
||||
|
||||
def log_message(self, format, *args):
|
||||
pass
|
||||
|
||||
class SilentWSGIServer(WSGIServer):
|
||||
def handle_error(self, request, client_address):
|
||||
pass
|
||||
|
||||
class SSLWSGIServer(SilentWSGIServer):
|
||||
def finish_request(self, request, client_address):
|
||||
# The relative location of our test directory (which
|
||||
# contains the sample key and certificate files) differs
|
||||
# between the stdlib and stand-alone Tulip/asyncio.
|
||||
# Prefer our own if we can find it.
|
||||
here = os.path.join(os.path.dirname(__file__), '..', 'tests')
|
||||
if not os.path.isdir(here):
|
||||
here = os.path.join(os.path.dirname(os.__file__),
|
||||
'test', 'test_asyncio')
|
||||
keyfile = os.path.join(here, 'sample.key')
|
||||
certfile = os.path.join(here, 'sample.crt')
|
||||
ssock = ssl.wrap_socket(request,
|
||||
keyfile=keyfile,
|
||||
certfile=certfile,
|
||||
server_side=True)
|
||||
try:
|
||||
self.RequestHandlerClass(ssock, client_address, self)
|
||||
ssock.close()
|
||||
except OSError:
|
||||
# maybe socket has been closed by peer
|
||||
pass
|
||||
|
||||
def app(environ, start_response):
|
||||
status = '200 OK'
|
||||
headers = [('Content-type', 'text/plain')]
|
||||
start_response(status, headers)
|
||||
return [b'Test message']
|
||||
|
||||
# Run the test WSGI server in a separate thread in order not to
|
||||
# interfere with event handling in the main thread
|
||||
server_class = SSLWSGIServer if use_ssl else SilentWSGIServer
|
||||
httpd = make_server(host, port, app,
|
||||
server_class, SilentWSGIRequestHandler)
|
||||
httpd.address = httpd.server_address
|
||||
server_thread = threading.Thread(target=httpd.serve_forever)
|
||||
server_thread.start()
|
||||
try:
|
||||
yield httpd
|
||||
finally:
|
||||
httpd.shutdown()
|
||||
server_thread.join()
|
||||
|
||||
|
||||
def make_test_protocol(base):
|
||||
dct = {}
|
||||
for name in dir(base):
|
||||
if name.startswith('__') and name.endswith('__'):
|
||||
# skip magic names
|
||||
continue
|
||||
dct[name] = unittest.mock.Mock(return_value=None)
|
||||
return type('TestProtocol', (base,) + base.__bases__, dct)()
|
||||
|
||||
|
||||
class TestSelector(selectors.BaseSelector):
|
||||
|
||||
def select(self, timeout):
|
||||
return []
|
||||
|
||||
|
||||
class TestLoop(base_events.BaseEventLoop):
|
||||
"""Loop for unittests.
|
||||
|
||||
It manages self time directly.
|
||||
If something scheduled to be executed later then
|
||||
on next loop iteration after all ready handlers done
|
||||
generator passed to __init__ is calling.
|
||||
|
||||
Generator should be like this:
|
||||
|
||||
def gen():
|
||||
...
|
||||
when = yield ...
|
||||
... = yield time_advance
|
||||
|
||||
Value retuned by yield is absolute time of next scheduled handler.
|
||||
Value passed to yield is time advance to move loop's time forward.
|
||||
"""
|
||||
|
||||
def __init__(self, gen=None):
|
||||
super().__init__()
|
||||
|
||||
if gen is None:
|
||||
def gen():
|
||||
yield
|
||||
self._check_on_close = False
|
||||
else:
|
||||
self._check_on_close = True
|
||||
|
||||
self._gen = gen()
|
||||
next(self._gen)
|
||||
self._time = 0
|
||||
self._timers = []
|
||||
self._selector = TestSelector()
|
||||
|
||||
self.readers = {}
|
||||
self.writers = {}
|
||||
self.reset_counters()
|
||||
|
||||
def time(self):
|
||||
return self._time
|
||||
|
||||
def advance_time(self, advance):
|
||||
"""Move test time forward."""
|
||||
if advance:
|
||||
self._time += advance
|
||||
|
||||
def close(self):
|
||||
if self._check_on_close:
|
||||
try:
|
||||
self._gen.send(0)
|
||||
except StopIteration:
|
||||
pass
|
||||
else: # pragma: no cover
|
||||
raise AssertionError("Time generator is not finished")
|
||||
|
||||
def add_reader(self, fd, callback, *args):
|
||||
self.readers[fd] = events.make_handle(callback, args)
|
||||
|
||||
def remove_reader(self, fd):
|
||||
self.remove_reader_count[fd] += 1
|
||||
if fd in self.readers:
|
||||
del self.readers[fd]
|
||||
return True
|
||||
else:
|
||||
return False
|
||||
|
||||
def assert_reader(self, fd, callback, *args):
|
||||
assert fd in self.readers, 'fd {} is not registered'.format(fd)
|
||||
handle = self.readers[fd]
|
||||
assert handle._callback == callback, '{!r} != {!r}'.format(
|
||||
handle._callback, callback)
|
||||
assert handle._args == args, '{!r} != {!r}'.format(
|
||||
handle._args, args)
|
||||
|
||||
def add_writer(self, fd, callback, *args):
|
||||
self.writers[fd] = events.make_handle(callback, args)
|
||||
|
||||
def remove_writer(self, fd):
|
||||
self.remove_writer_count[fd] += 1
|
||||
if fd in self.writers:
|
||||
del self.writers[fd]
|
||||
return True
|
||||
else:
|
||||
return False
|
||||
|
||||
def assert_writer(self, fd, callback, *args):
|
||||
assert fd in self.writers, 'fd {} is not registered'.format(fd)
|
||||
handle = self.writers[fd]
|
||||
assert handle._callback == callback, '{!r} != {!r}'.format(
|
||||
handle._callback, callback)
|
||||
assert handle._args == args, '{!r} != {!r}'.format(
|
||||
handle._args, args)
|
||||
|
||||
def reset_counters(self):
|
||||
self.remove_reader_count = collections.defaultdict(int)
|
||||
self.remove_writer_count = collections.defaultdict(int)
|
||||
|
||||
def _run_once(self):
|
||||
super()._run_once()
|
||||
for when in self._timers:
|
||||
advance = self._gen.send(when)
|
||||
self.advance_time(advance)
|
||||
self._timers = []
|
||||
|
||||
def call_at(self, when, callback, *args):
|
||||
self._timers.append(when)
|
||||
return super().call_at(when, callback, *args)
|
||||
|
||||
def _process_events(self, event_list):
|
||||
return
|
||||
|
||||
def _write_to_self(self):
|
||||
pass
|
||||
|
|
@ -0,0 +1,186 @@
|
|||
"""Abstract Transport class."""
|
||||
|
||||
__all__ = ['ReadTransport', 'WriteTransport', 'Transport']
|
||||
|
||||
|
||||
class BaseTransport:
|
||||
"""Base ABC for transports."""
|
||||
|
||||
def __init__(self, extra=None):
|
||||
if extra is None:
|
||||
extra = {}
|
||||
self._extra = extra
|
||||
|
||||
def get_extra_info(self, name, default=None):
|
||||
"""Get optional transport information."""
|
||||
return self._extra.get(name, default)
|
||||
|
||||
def close(self):
|
||||
"""Closes the transport.
|
||||
|
||||
Buffered data will be flushed asynchronously. No more data
|
||||
will be received. After all buffered data is flushed, the
|
||||
protocol's connection_lost() method will (eventually) called
|
||||
with None as its argument.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
|
||||
class ReadTransport(BaseTransport):
|
||||
"""ABC for read-only transports."""
|
||||
|
||||
def pause(self):
|
||||
"""Pause the receiving end.
|
||||
|
||||
No data will be passed to the protocol's data_received()
|
||||
method until resume() is called.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def resume(self):
|
||||
"""Resume the receiving end.
|
||||
|
||||
Data received will once again be passed to the protocol's
|
||||
data_received() method.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
|
||||
class WriteTransport(BaseTransport):
|
||||
"""ABC for write-only transports."""
|
||||
|
||||
def write(self, data):
|
||||
"""Write some data bytes to the transport.
|
||||
|
||||
This does not block; it buffers the data and arranges for it
|
||||
to be sent out asynchronously.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def writelines(self, list_of_data):
|
||||
"""Write a list (or any iterable) of data bytes to the transport.
|
||||
|
||||
The default implementation just calls write() for each item in
|
||||
the list/iterable.
|
||||
"""
|
||||
for data in list_of_data:
|
||||
self.write(data)
|
||||
|
||||
def write_eof(self):
|
||||
"""Closes the write end after flushing buffered data.
|
||||
|
||||
(This is like typing ^D into a UNIX program reading from stdin.)
|
||||
|
||||
Data may still be received.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def can_write_eof(self):
|
||||
"""Return True if this protocol supports write_eof(), False if not."""
|
||||
raise NotImplementedError
|
||||
|
||||
def abort(self):
|
||||
"""Closes the transport immediately.
|
||||
|
||||
Buffered data will be lost. No more data will be received.
|
||||
The protocol's connection_lost() method will (eventually) be
|
||||
called with None as its argument.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
|
||||
class Transport(ReadTransport, WriteTransport):
|
||||
"""ABC representing a bidirectional transport.
|
||||
|
||||
There may be several implementations, but typically, the user does
|
||||
not implement new transports; rather, the platform provides some
|
||||
useful transports that are implemented using the platform's best
|
||||
practices.
|
||||
|
||||
The user never instantiates a transport directly; they call a
|
||||
utility function, passing it a protocol factory and other
|
||||
information necessary to create the transport and protocol. (E.g.
|
||||
EventLoop.create_connection() or EventLoop.create_server().)
|
||||
|
||||
The utility function will asynchronously create a transport and a
|
||||
protocol and hook them up by calling the protocol's
|
||||
connection_made() method, passing it the transport.
|
||||
|
||||
The implementation here raises NotImplemented for every method
|
||||
except writelines(), which calls write() in a loop.
|
||||
"""
|
||||
|
||||
|
||||
class DatagramTransport(BaseTransport):
|
||||
"""ABC for datagram (UDP) transports."""
|
||||
|
||||
def sendto(self, data, addr=None):
|
||||
"""Send data to the transport.
|
||||
|
||||
This does not block; it buffers the data and arranges for it
|
||||
to be sent out asynchronously.
|
||||
addr is target socket address.
|
||||
If addr is None use target address pointed on transport creation.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def abort(self):
|
||||
"""Closes the transport immediately.
|
||||
|
||||
Buffered data will be lost. No more data will be received.
|
||||
The protocol's connection_lost() method will (eventually) be
|
||||
called with None as its argument.
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
|
||||
class SubprocessTransport(BaseTransport):
|
||||
|
||||
def get_pid(self):
|
||||
"""Get subprocess id."""
|
||||
raise NotImplementedError
|
||||
|
||||
def get_returncode(self):
|
||||
"""Get subprocess returncode.
|
||||
|
||||
See also
|
||||
http://docs.python.org/3/library/subprocess#subprocess.Popen.returncode
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def get_pipe_transport(self, fd):
|
||||
"""Get transport for pipe with number fd."""
|
||||
raise NotImplementedError
|
||||
|
||||
def send_signal(self, signal):
|
||||
"""Send signal to subprocess.
|
||||
|
||||
See also:
|
||||
docs.python.org/3/library/subprocess#subprocess.Popen.send_signal
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def terminate(self):
|
||||
"""Stop the subprocess.
|
||||
|
||||
Alias for close() method.
|
||||
|
||||
On Posix OSs the method sends SIGTERM to the subprocess.
|
||||
On Windows the Win32 API function TerminateProcess()
|
||||
is called to stop the subprocess.
|
||||
|
||||
See also:
|
||||
http://docs.python.org/3/library/subprocess#subprocess.Popen.terminate
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
||||
def kill(self):
|
||||
"""Kill the subprocess.
|
||||
|
||||
On Posix OSs the function sends SIGKILL to the subprocess.
|
||||
On Windows kill() is an alias for terminate().
|
||||
|
||||
See also:
|
||||
http://docs.python.org/3/library/subprocess#subprocess.Popen.kill
|
||||
"""
|
||||
raise NotImplementedError
|
||||
|
|
@ -0,0 +1,541 @@
|
|||
"""Selector eventloop for Unix with signal handling."""
|
||||
|
||||
import collections
|
||||
import errno
|
||||
import fcntl
|
||||
import functools
|
||||
import os
|
||||
import signal
|
||||
import socket
|
||||
import stat
|
||||
import subprocess
|
||||
import sys
|
||||
|
||||
|
||||
from . import constants
|
||||
from . import events
|
||||
from . import protocols
|
||||
from . import selector_events
|
||||
from . import tasks
|
||||
from . import transports
|
||||
from .log import asyncio_log
|
||||
|
||||
|
||||
__all__ = ['SelectorEventLoop', 'STDIN', 'STDOUT', 'STDERR']
|
||||
|
||||
STDIN = 0
|
||||
STDOUT = 1
|
||||
STDERR = 2
|
||||
|
||||
|
||||
if sys.platform == 'win32': # pragma: no cover
|
||||
raise ImportError('Signals are not really supported on Windows')
|
||||
|
||||
|
||||
class SelectorEventLoop(selector_events.BaseSelectorEventLoop):
|
||||
"""Unix event loop
|
||||
|
||||
Adds signal handling to SelectorEventLoop
|
||||
"""
|
||||
|
||||
def __init__(self, selector=None):
|
||||
super().__init__(selector)
|
||||
self._signal_handlers = {}
|
||||
self._subprocesses = {}
|
||||
|
||||
def _socketpair(self):
|
||||
return socket.socketpair()
|
||||
|
||||
def close(self):
|
||||
handler = self._signal_handlers.get(signal.SIGCHLD)
|
||||
if handler is not None:
|
||||
self.remove_signal_handler(signal.SIGCHLD)
|
||||
super().close()
|
||||
|
||||
def add_signal_handler(self, sig, callback, *args):
|
||||
"""Add a handler for a signal. UNIX only.
|
||||
|
||||
Raise ValueError if the signal number is invalid or uncatchable.
|
||||
Raise RuntimeError if there is a problem setting up the handler.
|
||||
"""
|
||||
self._check_signal(sig)
|
||||
try:
|
||||
# set_wakeup_fd() raises ValueError if this is not the
|
||||
# main thread. By calling it early we ensure that an
|
||||
# event loop running in another thread cannot add a signal
|
||||
# handler.
|
||||
signal.set_wakeup_fd(self._csock.fileno())
|
||||
except ValueError as exc:
|
||||
raise RuntimeError(str(exc))
|
||||
|
||||
handle = events.make_handle(callback, args)
|
||||
self._signal_handlers[sig] = handle
|
||||
|
||||
try:
|
||||
signal.signal(sig, self._handle_signal)
|
||||
except OSError as exc:
|
||||
del self._signal_handlers[sig]
|
||||
if not self._signal_handlers:
|
||||
try:
|
||||
signal.set_wakeup_fd(-1)
|
||||
except ValueError as nexc:
|
||||
asyncio_log.info('set_wakeup_fd(-1) failed: %s', nexc)
|
||||
|
||||
if exc.errno == errno.EINVAL:
|
||||
raise RuntimeError('sig {} cannot be caught'.format(sig))
|
||||
else:
|
||||
raise
|
||||
|
||||
def _handle_signal(self, sig, arg):
|
||||
"""Internal helper that is the actual signal handler."""
|
||||
handle = self._signal_handlers.get(sig)
|
||||
if handle is None:
|
||||
return # Assume it's some race condition.
|
||||
if handle._cancelled:
|
||||
self.remove_signal_handler(sig) # Remove it properly.
|
||||
else:
|
||||
self._add_callback_signalsafe(handle)
|
||||
|
||||
def remove_signal_handler(self, sig):
|
||||
"""Remove a handler for a signal. UNIX only.
|
||||
|
||||
Return True if a signal handler was removed, False if not.
|
||||
"""
|
||||
self._check_signal(sig)
|
||||
try:
|
||||
del self._signal_handlers[sig]
|
||||
except KeyError:
|
||||
return False
|
||||
|
||||
if sig == signal.SIGINT:
|
||||
handler = signal.default_int_handler
|
||||
else:
|
||||
handler = signal.SIG_DFL
|
||||
|
||||
try:
|
||||
signal.signal(sig, handler)
|
||||
except OSError as exc:
|
||||
if exc.errno == errno.EINVAL:
|
||||
raise RuntimeError('sig {} cannot be caught'.format(sig))
|
||||
else:
|
||||
raise
|
||||
|
||||
if not self._signal_handlers:
|
||||
try:
|
||||
signal.set_wakeup_fd(-1)
|
||||
except ValueError as exc:
|
||||
asyncio_log.info('set_wakeup_fd(-1) failed: %s', exc)
|
||||
|
||||
return True
|
||||
|
||||
def _check_signal(self, sig):
|
||||
"""Internal helper to validate a signal.
|
||||
|
||||
Raise ValueError if the signal number is invalid or uncatchable.
|
||||
Raise RuntimeError if there is a problem setting up the handler.
|
||||
"""
|
||||
if not isinstance(sig, int):
|
||||
raise TypeError('sig must be an int, not {!r}'.format(sig))
|
||||
|
||||
if not (1 <= sig < signal.NSIG):
|
||||
raise ValueError(
|
||||
'sig {} out of range(1, {})'.format(sig, signal.NSIG))
|
||||
|
||||
def _make_read_pipe_transport(self, pipe, protocol, waiter=None,
|
||||
extra=None):
|
||||
return _UnixReadPipeTransport(self, pipe, protocol, waiter, extra)
|
||||
|
||||
def _make_write_pipe_transport(self, pipe, protocol, waiter=None,
|
||||
extra=None):
|
||||
return _UnixWritePipeTransport(self, pipe, protocol, waiter, extra)
|
||||
|
||||
@tasks.coroutine
|
||||
def _make_subprocess_transport(self, protocol, args, shell,
|
||||
stdin, stdout, stderr, bufsize,
|
||||
extra=None, **kwargs):
|
||||
self._reg_sigchld()
|
||||
transp = _UnixSubprocessTransport(self, protocol, args, shell,
|
||||
stdin, stdout, stderr, bufsize,
|
||||
extra=None, **kwargs)
|
||||
self._subprocesses[transp.get_pid()] = transp
|
||||
yield from transp._post_init()
|
||||
return transp
|
||||
|
||||
def _reg_sigchld(self):
|
||||
if signal.SIGCHLD not in self._signal_handlers:
|
||||
self.add_signal_handler(signal.SIGCHLD, self._sig_chld)
|
||||
|
||||
def _sig_chld(self):
|
||||
try:
|
||||
try:
|
||||
pid, status = os.waitpid(0, os.WNOHANG)
|
||||
except ChildProcessError:
|
||||
return
|
||||
if pid == 0:
|
||||
self.call_soon(self._sig_chld)
|
||||
return
|
||||
elif os.WIFSIGNALED(status):
|
||||
returncode = -os.WTERMSIG(status)
|
||||
elif os.WIFEXITED(status):
|
||||
returncode = os.WEXITSTATUS(status)
|
||||
else:
|
||||
self.call_soon(self._sig_chld)
|
||||
return
|
||||
transp = self._subprocesses.get(pid)
|
||||
if transp is not None:
|
||||
transp._process_exited(returncode)
|
||||
except Exception:
|
||||
asyncio_log.exception('Unknown exception in SIGCHLD handler')
|
||||
|
||||
def _subprocess_closed(self, transport):
|
||||
pid = transport.get_pid()
|
||||
self._subprocesses.pop(pid, None)
|
||||
|
||||
|
||||
def _set_nonblocking(fd):
|
||||
flags = fcntl.fcntl(fd, fcntl.F_GETFL)
|
||||
flags = flags | os.O_NONBLOCK
|
||||
fcntl.fcntl(fd, fcntl.F_SETFL, flags)
|
||||
|
||||
|
||||
class _UnixReadPipeTransport(transports.ReadTransport):
|
||||
|
||||
max_size = 256 * 1024 # max bytes we read in one eventloop iteration
|
||||
|
||||
def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
|
||||
super().__init__(extra)
|
||||
self._extra['pipe'] = pipe
|
||||
self._loop = loop
|
||||
self._pipe = pipe
|
||||
self._fileno = pipe.fileno()
|
||||
_set_nonblocking(self._fileno)
|
||||
self._protocol = protocol
|
||||
self._closing = False
|
||||
self._loop.add_reader(self._fileno, self._read_ready)
|
||||
self._loop.call_soon(self._protocol.connection_made, self)
|
||||
if waiter is not None:
|
||||
self._loop.call_soon(waiter.set_result, None)
|
||||
|
||||
def _read_ready(self):
|
||||
try:
|
||||
data = os.read(self._fileno, self.max_size)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
pass
|
||||
except OSError as exc:
|
||||
self._fatal_error(exc)
|
||||
else:
|
||||
if data:
|
||||
self._protocol.data_received(data)
|
||||
else:
|
||||
self._closing = True
|
||||
self._loop.remove_reader(self._fileno)
|
||||
self._loop.call_soon(self._protocol.eof_received)
|
||||
self._loop.call_soon(self._call_connection_lost, None)
|
||||
|
||||
def pause(self):
|
||||
self._loop.remove_reader(self._fileno)
|
||||
|
||||
def resume(self):
|
||||
self._loop.add_reader(self._fileno, self._read_ready)
|
||||
|
||||
def close(self):
|
||||
if not self._closing:
|
||||
self._close(None)
|
||||
|
||||
def _fatal_error(self, exc):
|
||||
# should be called by exception handler only
|
||||
asyncio_log.exception('Fatal error for %s', self)
|
||||
self._close(exc)
|
||||
|
||||
def _close(self, exc):
|
||||
self._closing = True
|
||||
self._loop.remove_reader(self._fileno)
|
||||
self._loop.call_soon(self._call_connection_lost, exc)
|
||||
|
||||
def _call_connection_lost(self, exc):
|
||||
try:
|
||||
self._protocol.connection_lost(exc)
|
||||
finally:
|
||||
self._pipe.close()
|
||||
self._pipe = None
|
||||
self._protocol = None
|
||||
self._loop = None
|
||||
|
||||
|
||||
class _UnixWritePipeTransport(transports.WriteTransport):
|
||||
|
||||
def __init__(self, loop, pipe, protocol, waiter=None, extra=None):
|
||||
super().__init__(extra)
|
||||
self._extra['pipe'] = pipe
|
||||
self._loop = loop
|
||||
self._pipe = pipe
|
||||
self._fileno = pipe.fileno()
|
||||
if not stat.S_ISFIFO(os.fstat(self._fileno).st_mode):
|
||||
raise ValueError("Pipe transport is for pipes only.")
|
||||
_set_nonblocking(self._fileno)
|
||||
self._protocol = protocol
|
||||
self._buffer = []
|
||||
self._conn_lost = 0
|
||||
self._closing = False # Set when close() or write_eof() called.
|
||||
self._loop.add_reader(self._fileno, self._read_ready)
|
||||
|
||||
self._loop.call_soon(self._protocol.connection_made, self)
|
||||
if waiter is not None:
|
||||
self._loop.call_soon(waiter.set_result, None)
|
||||
|
||||
def _read_ready(self):
|
||||
# pipe was closed by peer
|
||||
self._close()
|
||||
|
||||
def write(self, data):
|
||||
assert isinstance(data, bytes), repr(data)
|
||||
if not data:
|
||||
return
|
||||
|
||||
if self._conn_lost or self._closing:
|
||||
if self._conn_lost >= constants.LOG_THRESHOLD_FOR_CONNLOST_WRITES:
|
||||
asyncio_log.warning('pipe closed by peer or '
|
||||
'os.write(pipe, data) raised exception.')
|
||||
self._conn_lost += 1
|
||||
return
|
||||
|
||||
if not self._buffer:
|
||||
# Attempt to send it right away first.
|
||||
try:
|
||||
n = os.write(self._fileno, data)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
n = 0
|
||||
except Exception as exc:
|
||||
self._conn_lost += 1
|
||||
self._fatal_error(exc)
|
||||
return
|
||||
if n == len(data):
|
||||
return
|
||||
elif n > 0:
|
||||
data = data[n:]
|
||||
self._loop.add_writer(self._fileno, self._write_ready)
|
||||
|
||||
self._buffer.append(data)
|
||||
|
||||
def _write_ready(self):
|
||||
data = b''.join(self._buffer)
|
||||
assert data, 'Data should not be empty'
|
||||
|
||||
self._buffer.clear()
|
||||
try:
|
||||
n = os.write(self._fileno, data)
|
||||
except (BlockingIOError, InterruptedError):
|
||||
self._buffer.append(data)
|
||||
except Exception as exc:
|
||||
self._conn_lost += 1
|
||||
# Remove writer here, _fatal_error() doesn't it
|
||||
# because _buffer is empty.
|
||||
self._loop.remove_writer(self._fileno)
|
||||
self._fatal_error(exc)
|
||||
else:
|
||||
if n == len(data):
|
||||
self._loop.remove_writer(self._fileno)
|
||||
if self._closing:
|
||||
self._loop.remove_reader(self._fileno)
|
||||
self._call_connection_lost(None)
|
||||
return
|
||||
elif n > 0:
|
||||
data = data[n:]
|
||||
|
||||
self._buffer.append(data) # Try again later.
|
||||
|
||||
def can_write_eof(self):
|
||||
return True
|
||||
|
||||
# TODO: Make the relationships between write_eof(), close(),
|
||||
# abort(), _fatal_error() and _close() more straightforward.
|
||||
|
||||
def write_eof(self):
|
||||
if self._closing:
|
||||
return
|
||||
assert self._pipe
|
||||
self._closing = True
|
||||
if not self._buffer:
|
||||
self._loop.remove_reader(self._fileno)
|
||||
self._loop.call_soon(self._call_connection_lost, None)
|
||||
|
||||
def close(self):
|
||||
if not self._closing:
|
||||
# write_eof is all what we needed to close the write pipe
|
||||
self.write_eof()
|
||||
|
||||
def abort(self):
|
||||
self._close(None)
|
||||
|
||||
def _fatal_error(self, exc):
|
||||
# should be called by exception handler only
|
||||
asyncio_log.exception('Fatal error for %s', self)
|
||||
self._close(exc)
|
||||
|
||||
def _close(self, exc=None):
|
||||
self._closing = True
|
||||
if self._buffer:
|
||||
self._loop.remove_writer(self._fileno)
|
||||
self._buffer.clear()
|
||||
self._loop.remove_reader(self._fileno)
|
||||
self._loop.call_soon(self._call_connection_lost, exc)
|
||||
|
||||
def _call_connection_lost(self, exc):
|
||||
try:
|
||||
self._protocol.connection_lost(exc)
|
||||
finally:
|
||||
self._pipe.close()
|
||||
self._pipe = None
|
||||
self._protocol = None
|
||||
self._loop = None
|
||||
|
||||
|
||||
class _UnixWriteSubprocessPipeProto(protocols.BaseProtocol):
|
||||
pipe = None
|
||||
|
||||
def __init__(self, proc, fd):
|
||||
self.proc = proc
|
||||
self.fd = fd
|
||||
self.connected = False
|
||||
self.disconnected = False
|
||||
proc._pipes[fd] = self
|
||||
|
||||
def connection_made(self, transport):
|
||||
self.connected = True
|
||||
self.pipe = transport
|
||||
self.proc._try_connected()
|
||||
|
||||
def connection_lost(self, exc):
|
||||
self.disconnected = True
|
||||
self.proc._pipe_connection_lost(self.fd, exc)
|
||||
|
||||
|
||||
class _UnixReadSubprocessPipeProto(_UnixWriteSubprocessPipeProto,
|
||||
protocols.Protocol):
|
||||
|
||||
def data_received(self, data):
|
||||
self.proc._pipe_data_received(self.fd, data)
|
||||
|
||||
def eof_received(self):
|
||||
pass
|
||||
|
||||
|
||||
class _UnixSubprocessTransport(transports.SubprocessTransport):
|
||||
|
||||
def __init__(self, loop, protocol, args, shell,
|
||||
stdin, stdout, stderr, bufsize,
|
||||
extra=None, **kwargs):
|
||||
super().__init__(extra)
|
||||
self._protocol = protocol
|
||||
self._loop = loop
|
||||
|
||||
self._pipes = {}
|
||||
if stdin == subprocess.PIPE:
|
||||
self._pipes[STDIN] = None
|
||||
if stdout == subprocess.PIPE:
|
||||
self._pipes[STDOUT] = None
|
||||
if stderr == subprocess.PIPE:
|
||||
self._pipes[STDERR] = None
|
||||
self._pending_calls = collections.deque()
|
||||
self._finished = False
|
||||
self._returncode = None
|
||||
|
||||
self._proc = subprocess.Popen(
|
||||
args, shell=shell, stdin=stdin, stdout=stdout, stderr=stderr,
|
||||
universal_newlines=False, bufsize=bufsize, **kwargs)
|
||||
self._extra['subprocess'] = self._proc
|
||||
|
||||
def close(self):
|
||||
for proto in self._pipes.values():
|
||||
proto.pipe.close()
|
||||
if self._returncode is None:
|
||||
self.terminate()
|
||||
|
||||
def get_pid(self):
|
||||
return self._proc.pid
|
||||
|
||||
def get_returncode(self):
|
||||
return self._returncode
|
||||
|
||||
def get_pipe_transport(self, fd):
|
||||
if fd in self._pipes:
|
||||
return self._pipes[fd].pipe
|
||||
else:
|
||||
return None
|
||||
|
||||
def send_signal(self, signal):
|
||||
self._proc.send_signal(signal)
|
||||
|
||||
def terminate(self):
|
||||
self._proc.terminate()
|
||||
|
||||
def kill(self):
|
||||
self._proc.kill()
|
||||
|
||||
@tasks.coroutine
|
||||
def _post_init(self):
|
||||
proc = self._proc
|
||||
loop = self._loop
|
||||
if proc.stdin is not None:
|
||||
transp, proto = yield from loop.connect_write_pipe(
|
||||
functools.partial(
|
||||
_UnixWriteSubprocessPipeProto, self, STDIN),
|
||||
proc.stdin)
|
||||
if proc.stdout is not None:
|
||||
transp, proto = yield from loop.connect_read_pipe(
|
||||
functools.partial(
|
||||
_UnixReadSubprocessPipeProto, self, STDOUT),
|
||||
proc.stdout)
|
||||
if proc.stderr is not None:
|
||||
transp, proto = yield from loop.connect_read_pipe(
|
||||
functools.partial(
|
||||
_UnixReadSubprocessPipeProto, self, STDERR),
|
||||
proc.stderr)
|
||||
if not self._pipes:
|
||||
self._try_connected()
|
||||
|
||||
def _call(self, cb, *data):
|
||||
if self._pending_calls is not None:
|
||||
self._pending_calls.append((cb, data))
|
||||
else:
|
||||
self._loop.call_soon(cb, *data)
|
||||
|
||||
def _try_connected(self):
|
||||
assert self._pending_calls is not None
|
||||
if all(p is not None and p.connected for p in self._pipes.values()):
|
||||
self._loop.call_soon(self._protocol.connection_made, self)
|
||||
for callback, data in self._pending_calls:
|
||||
self._loop.call_soon(callback, *data)
|
||||
self._pending_calls = None
|
||||
|
||||
def _pipe_connection_lost(self, fd, exc):
|
||||
self._call(self._protocol.pipe_connection_lost, fd, exc)
|
||||
self._try_finish()
|
||||
|
||||
def _pipe_data_received(self, fd, data):
|
||||
self._call(self._protocol.pipe_data_received, fd, data)
|
||||
|
||||
def _process_exited(self, returncode):
|
||||
assert returncode is not None, returncode
|
||||
assert self._returncode is None, self._returncode
|
||||
self._returncode = returncode
|
||||
self._loop._subprocess_closed(self)
|
||||
self._call(self._protocol.process_exited)
|
||||
self._try_finish()
|
||||
|
||||
def _try_finish(self):
|
||||
assert not self._finished
|
||||
if self._returncode is None:
|
||||
return
|
||||
if all(p is not None and p.disconnected
|
||||
for p in self._pipes.values()):
|
||||
self._finished = True
|
||||
self._loop.call_soon(self._call_connection_lost, None)
|
||||
|
||||
def _call_connection_lost(self, exc):
|
||||
try:
|
||||
self._protocol.connection_lost(exc)
|
||||
finally:
|
||||
self._proc = None
|
||||
self._protocol = None
|
||||
self._loop = None
|
||||
|
|
@ -0,0 +1,375 @@
|
|||
"""Selector and proactor eventloops for Windows."""
|
||||
|
||||
import errno
|
||||
import socket
|
||||
import weakref
|
||||
import struct
|
||||
import _winapi
|
||||
|
||||
from . import futures
|
||||
from . import proactor_events
|
||||
from . import selector_events
|
||||
from . import tasks
|
||||
from . import windows_utils
|
||||
from .log import asyncio_log
|
||||
|
||||
try:
|
||||
import _overlapped
|
||||
except ImportError:
|
||||
from . import _overlapped
|
||||
|
||||
|
||||
__all__ = ['SelectorEventLoop', 'ProactorEventLoop', 'IocpProactor']
|
||||
|
||||
|
||||
NULL = 0
|
||||
INFINITE = 0xffffffff
|
||||
ERROR_CONNECTION_REFUSED = 1225
|
||||
ERROR_CONNECTION_ABORTED = 1236
|
||||
|
||||
|
||||
class _OverlappedFuture(futures.Future):
|
||||
"""Subclass of Future which represents an overlapped operation.
|
||||
|
||||
Cancelling it will immediately cancel the overlapped operation.
|
||||
"""
|
||||
|
||||
def __init__(self, ov, *, loop=None):
|
||||
super().__init__(loop=loop)
|
||||
self.ov = ov
|
||||
|
||||
def cancel(self):
|
||||
try:
|
||||
self.ov.cancel()
|
||||
except OSError:
|
||||
pass
|
||||
return super().cancel()
|
||||
|
||||
|
||||
class PipeServer(object):
|
||||
"""Class representing a pipe server.
|
||||
|
||||
This is much like a bound, listening socket.
|
||||
"""
|
||||
def __init__(self, address):
|
||||
self._address = address
|
||||
self._free_instances = weakref.WeakSet()
|
||||
self._pipe = self._server_pipe_handle(True)
|
||||
|
||||
def _get_unconnected_pipe(self):
|
||||
# Create new instance and return previous one. This ensures
|
||||
# that (until the server is closed) there is always at least
|
||||
# one pipe handle for address. Therefore if a client attempt
|
||||
# to connect it will not fail with FileNotFoundError.
|
||||
tmp, self._pipe = self._pipe, self._server_pipe_handle(False)
|
||||
return tmp
|
||||
|
||||
def _server_pipe_handle(self, first):
|
||||
# Return a wrapper for a new pipe handle.
|
||||
if self._address is None:
|
||||
return None
|
||||
flags = _winapi.PIPE_ACCESS_DUPLEX | _winapi.FILE_FLAG_OVERLAPPED
|
||||
if first:
|
||||
flags |= _winapi.FILE_FLAG_FIRST_PIPE_INSTANCE
|
||||
h = _winapi.CreateNamedPipe(
|
||||
self._address, flags,
|
||||
_winapi.PIPE_TYPE_MESSAGE | _winapi.PIPE_READMODE_MESSAGE |
|
||||
_winapi.PIPE_WAIT,
|
||||
_winapi.PIPE_UNLIMITED_INSTANCES,
|
||||
windows_utils.BUFSIZE, windows_utils.BUFSIZE,
|
||||
_winapi.NMPWAIT_WAIT_FOREVER, _winapi.NULL)
|
||||
pipe = windows_utils.PipeHandle(h)
|
||||
self._free_instances.add(pipe)
|
||||
return pipe
|
||||
|
||||
def close(self):
|
||||
# Close all instances which have not been connected to by a client.
|
||||
if self._address is not None:
|
||||
for pipe in self._free_instances:
|
||||
pipe.close()
|
||||
self._pipe = None
|
||||
self._address = None
|
||||
self._free_instances.clear()
|
||||
|
||||
__del__ = close
|
||||
|
||||
|
||||
class SelectorEventLoop(selector_events.BaseSelectorEventLoop):
|
||||
"""Windows version of selector event loop."""
|
||||
|
||||
def _socketpair(self):
|
||||
return windows_utils.socketpair()
|
||||
|
||||
|
||||
class ProactorEventLoop(proactor_events.BaseProactorEventLoop):
|
||||
"""Windows version of proactor event loop using IOCP."""
|
||||
|
||||
def __init__(self, proactor=None):
|
||||
if proactor is None:
|
||||
proactor = IocpProactor()
|
||||
super().__init__(proactor)
|
||||
|
||||
def _socketpair(self):
|
||||
return windows_utils.socketpair()
|
||||
|
||||
@tasks.coroutine
|
||||
def create_pipe_connection(self, protocol_factory, address):
|
||||
f = self._proactor.connect_pipe(address)
|
||||
pipe = yield from f
|
||||
protocol = protocol_factory()
|
||||
trans = self._make_duplex_pipe_transport(pipe, protocol,
|
||||
extra={'addr': address})
|
||||
return trans, protocol
|
||||
|
||||
@tasks.coroutine
|
||||
def start_serving_pipe(self, protocol_factory, address):
|
||||
server = PipeServer(address)
|
||||
def loop(f=None):
|
||||
pipe = None
|
||||
try:
|
||||
if f:
|
||||
pipe = f.result()
|
||||
server._free_instances.discard(pipe)
|
||||
protocol = protocol_factory()
|
||||
self._make_duplex_pipe_transport(
|
||||
pipe, protocol, extra={'addr': address})
|
||||
pipe = server._get_unconnected_pipe()
|
||||
if pipe is None:
|
||||
return
|
||||
f = self._proactor.accept_pipe(pipe)
|
||||
except OSError:
|
||||
if pipe and pipe.fileno() != -1:
|
||||
asyncio_log.exception('Pipe accept failed')
|
||||
pipe.close()
|
||||
except futures.CancelledError:
|
||||
if pipe:
|
||||
pipe.close()
|
||||
else:
|
||||
f.add_done_callback(loop)
|
||||
self.call_soon(loop)
|
||||
return [server]
|
||||
|
||||
def _stop_serving(self, server):
|
||||
server.close()
|
||||
|
||||
|
||||
class IocpProactor:
|
||||
"""Proactor implementation using IOCP."""
|
||||
|
||||
def __init__(self, concurrency=0xffffffff):
|
||||
self._loop = None
|
||||
self._results = []
|
||||
self._iocp = _overlapped.CreateIoCompletionPort(
|
||||
_overlapped.INVALID_HANDLE_VALUE, NULL, 0, concurrency)
|
||||
self._cache = {}
|
||||
self._registered = weakref.WeakSet()
|
||||
self._stopped_serving = weakref.WeakSet()
|
||||
|
||||
def set_loop(self, loop):
|
||||
self._loop = loop
|
||||
|
||||
def select(self, timeout=None):
|
||||
if not self._results:
|
||||
self._poll(timeout)
|
||||
tmp = self._results
|
||||
self._results = []
|
||||
return tmp
|
||||
|
||||
def recv(self, conn, nbytes, flags=0):
|
||||
self._register_with_iocp(conn)
|
||||
ov = _overlapped.Overlapped(NULL)
|
||||
if isinstance(conn, socket.socket):
|
||||
ov.WSARecv(conn.fileno(), nbytes, flags)
|
||||
else:
|
||||
ov.ReadFile(conn.fileno(), nbytes)
|
||||
def finish(trans, key, ov):
|
||||
try:
|
||||
return ov.getresult()
|
||||
except OSError as exc:
|
||||
if exc.winerror == _overlapped.ERROR_NETNAME_DELETED:
|
||||
raise ConnectionResetError(*exc.args)
|
||||
else:
|
||||
raise
|
||||
return self._register(ov, conn, finish)
|
||||
|
||||
def send(self, conn, buf, flags=0):
|
||||
self._register_with_iocp(conn)
|
||||
ov = _overlapped.Overlapped(NULL)
|
||||
if isinstance(conn, socket.socket):
|
||||
ov.WSASend(conn.fileno(), buf, flags)
|
||||
else:
|
||||
ov.WriteFile(conn.fileno(), buf)
|
||||
def finish(trans, key, ov):
|
||||
try:
|
||||
return ov.getresult()
|
||||
except OSError as exc:
|
||||
if exc.winerror == _overlapped.ERROR_NETNAME_DELETED:
|
||||
raise ConnectionResetError(*exc.args)
|
||||
else:
|
||||
raise
|
||||
return self._register(ov, conn, finish)
|
||||
|
||||
def accept(self, listener):
|
||||
self._register_with_iocp(listener)
|
||||
conn = self._get_accept_socket(listener.family)
|
||||
ov = _overlapped.Overlapped(NULL)
|
||||
ov.AcceptEx(listener.fileno(), conn.fileno())
|
||||
def finish_accept(trans, key, ov):
|
||||
ov.getresult()
|
||||
# Use SO_UPDATE_ACCEPT_CONTEXT so getsockname() etc work.
|
||||
buf = struct.pack('@P', listener.fileno())
|
||||
conn.setsockopt(socket.SOL_SOCKET,
|
||||
_overlapped.SO_UPDATE_ACCEPT_CONTEXT, buf)
|
||||
conn.settimeout(listener.gettimeout())
|
||||
return conn, conn.getpeername()
|
||||
return self._register(ov, listener, finish_accept)
|
||||
|
||||
def connect(self, conn, address):
|
||||
self._register_with_iocp(conn)
|
||||
# The socket needs to be locally bound before we call ConnectEx().
|
||||
try:
|
||||
_overlapped.BindLocal(conn.fileno(), conn.family)
|
||||
except OSError as e:
|
||||
if e.winerror != errno.WSAEINVAL:
|
||||
raise
|
||||
# Probably already locally bound; check using getsockname().
|
||||
if conn.getsockname()[1] == 0:
|
||||
raise
|
||||
ov = _overlapped.Overlapped(NULL)
|
||||
ov.ConnectEx(conn.fileno(), address)
|
||||
def finish_connect(trans, key, ov):
|
||||
ov.getresult()
|
||||
# Use SO_UPDATE_CONNECT_CONTEXT so getsockname() etc work.
|
||||
conn.setsockopt(socket.SOL_SOCKET,
|
||||
_overlapped.SO_UPDATE_CONNECT_CONTEXT, 0)
|
||||
return conn
|
||||
return self._register(ov, conn, finish_connect)
|
||||
|
||||
def accept_pipe(self, pipe):
|
||||
self._register_with_iocp(pipe)
|
||||
ov = _overlapped.Overlapped(NULL)
|
||||
ov.ConnectNamedPipe(pipe.fileno())
|
||||
def finish(trans, key, ov):
|
||||
ov.getresult()
|
||||
return pipe
|
||||
return self._register(ov, pipe, finish)
|
||||
|
||||
def connect_pipe(self, address):
|
||||
ov = _overlapped.Overlapped(NULL)
|
||||
ov.WaitNamedPipeAndConnect(address, self._iocp, ov.address)
|
||||
def finish(err, handle, ov):
|
||||
# err, handle were arguments passed to PostQueuedCompletionStatus()
|
||||
# in a function run in a thread pool.
|
||||
if err == _overlapped.ERROR_SEM_TIMEOUT:
|
||||
# Connection did not succeed within time limit.
|
||||
msg = _overlapped.FormatMessage(err)
|
||||
raise ConnectionRefusedError(0, msg, None, err)
|
||||
elif err != 0:
|
||||
msg = _overlapped.FormatMessage(err)
|
||||
raise OSError(0, msg, None, err)
|
||||
else:
|
||||
return windows_utils.PipeHandle(handle)
|
||||
return self._register(ov, None, finish, wait_for_post=True)
|
||||
|
||||
def _register_with_iocp(self, obj):
|
||||
# To get notifications of finished ops on this objects sent to the
|
||||
# completion port, were must register the handle.
|
||||
if obj not in self._registered:
|
||||
self._registered.add(obj)
|
||||
_overlapped.CreateIoCompletionPort(obj.fileno(), self._iocp, 0, 0)
|
||||
# XXX We could also use SetFileCompletionNotificationModes()
|
||||
# to avoid sending notifications to completion port of ops
|
||||
# that succeed immediately.
|
||||
|
||||
def _register(self, ov, obj, callback, wait_for_post=False):
|
||||
# Return a future which will be set with the result of the
|
||||
# operation when it completes. The future's value is actually
|
||||
# the value returned by callback().
|
||||
f = _OverlappedFuture(ov, loop=self._loop)
|
||||
if ov.pending or wait_for_post:
|
||||
# Register the overlapped operation for later. Note that
|
||||
# we only store obj to prevent it from being garbage
|
||||
# collected too early.
|
||||
self._cache[ov.address] = (f, ov, obj, callback)
|
||||
else:
|
||||
# The operation has completed, so no need to postpone the
|
||||
# work. We cannot take this short cut if we need the
|
||||
# NumberOfBytes, CompletionKey values returned by
|
||||
# PostQueuedCompletionStatus().
|
||||
try:
|
||||
value = callback(None, None, ov)
|
||||
except OSError as e:
|
||||
f.set_exception(e)
|
||||
else:
|
||||
f.set_result(value)
|
||||
return f
|
||||
|
||||
def _get_accept_socket(self, family):
|
||||
s = socket.socket(family)
|
||||
s.settimeout(0)
|
||||
return s
|
||||
|
||||
def _poll(self, timeout=None):
|
||||
if timeout is None:
|
||||
ms = INFINITE
|
||||
elif timeout < 0:
|
||||
raise ValueError("negative timeout")
|
||||
else:
|
||||
ms = int(timeout * 1000 + 0.5)
|
||||
if ms >= INFINITE:
|
||||
raise ValueError("timeout too big")
|
||||
while True:
|
||||
status = _overlapped.GetQueuedCompletionStatus(self._iocp, ms)
|
||||
if status is None:
|
||||
return
|
||||
err, transferred, key, address = status
|
||||
try:
|
||||
f, ov, obj, callback = self._cache.pop(address)
|
||||
except KeyError:
|
||||
# key is either zero, or it is used to return a pipe
|
||||
# handle which should be closed to avoid a leak.
|
||||
if key not in (0, _overlapped.INVALID_HANDLE_VALUE):
|
||||
_winapi.CloseHandle(key)
|
||||
ms = 0
|
||||
continue
|
||||
if obj in self._stopped_serving:
|
||||
f.cancel()
|
||||
elif not f.cancelled():
|
||||
try:
|
||||
value = callback(transferred, key, ov)
|
||||
except OSError as e:
|
||||
f.set_exception(e)
|
||||
self._results.append(f)
|
||||
else:
|
||||
f.set_result(value)
|
||||
self._results.append(f)
|
||||
ms = 0
|
||||
|
||||
def _stop_serving(self, obj):
|
||||
# obj is a socket or pipe handle. It will be closed in
|
||||
# BaseProactorEventLoop._stop_serving() which will make any
|
||||
# pending operations fail quickly.
|
||||
self._stopped_serving.add(obj)
|
||||
|
||||
def close(self):
|
||||
# Cancel remaining registered operations.
|
||||
for address, (f, ov, obj, callback) in list(self._cache.items()):
|
||||
if obj is None:
|
||||
# The operation was started with connect_pipe() which
|
||||
# queues a task to Windows' thread pool. This cannot
|
||||
# be cancelled, so just forget it.
|
||||
del self._cache[address]
|
||||
else:
|
||||
try:
|
||||
ov.cancel()
|
||||
except OSError:
|
||||
pass
|
||||
|
||||
while self._cache:
|
||||
if not self._poll(1):
|
||||
asyncio_log.debug('taking long time to close proactor')
|
||||
|
||||
self._results = []
|
||||
if self._iocp is not None:
|
||||
_winapi.CloseHandle(self._iocp)
|
||||
self._iocp = None
|
||||
|
|
@ -0,0 +1,181 @@
|
|||
"""
|
||||
Various Windows specific bits and pieces
|
||||
"""
|
||||
|
||||
import sys
|
||||
|
||||
if sys.platform != 'win32': # pragma: no cover
|
||||
raise ImportError('win32 only')
|
||||
|
||||
import socket
|
||||
import itertools
|
||||
import msvcrt
|
||||
import os
|
||||
import subprocess
|
||||
import tempfile
|
||||
import _winapi
|
||||
|
||||
|
||||
__all__ = ['socketpair', 'pipe', 'Popen', 'PIPE', 'PipeHandle']
|
||||
|
||||
#
|
||||
# Constants/globals
|
||||
#
|
||||
|
||||
BUFSIZE = 8192
|
||||
PIPE = subprocess.PIPE
|
||||
_mmap_counter = itertools.count()
|
||||
|
||||
#
|
||||
# Replacement for socket.socketpair()
|
||||
#
|
||||
|
||||
def socketpair(family=socket.AF_INET, type=socket.SOCK_STREAM, proto=0):
|
||||
"""A socket pair usable as a self-pipe, for Windows.
|
||||
|
||||
Origin: https://gist.github.com/4325783, by Geert Jansen. Public domain.
|
||||
"""
|
||||
# We create a connected TCP socket. Note the trick with setblocking(0)
|
||||
# that prevents us from having to create a thread.
|
||||
lsock = socket.socket(family, type, proto)
|
||||
lsock.bind(('localhost', 0))
|
||||
lsock.listen(1)
|
||||
addr, port = lsock.getsockname()
|
||||
csock = socket.socket(family, type, proto)
|
||||
csock.setblocking(False)
|
||||
try:
|
||||
csock.connect((addr, port))
|
||||
except (BlockingIOError, InterruptedError):
|
||||
pass
|
||||
except Exception:
|
||||
lsock.close()
|
||||
csock.close()
|
||||
raise
|
||||
ssock, _ = lsock.accept()
|
||||
csock.setblocking(True)
|
||||
lsock.close()
|
||||
return (ssock, csock)
|
||||
|
||||
#
|
||||
# Replacement for os.pipe() using handles instead of fds
|
||||
#
|
||||
|
||||
def pipe(*, duplex=False, overlapped=(True, True), bufsize=BUFSIZE):
|
||||
"""Like os.pipe() but with overlapped support and using handles not fds."""
|
||||
address = tempfile.mktemp(prefix=r'\\.\pipe\python-pipe-%d-%d-' %
|
||||
(os.getpid(), next(_mmap_counter)))
|
||||
|
||||
if duplex:
|
||||
openmode = _winapi.PIPE_ACCESS_DUPLEX
|
||||
access = _winapi.GENERIC_READ | _winapi.GENERIC_WRITE
|
||||
obsize, ibsize = bufsize, bufsize
|
||||
else:
|
||||
openmode = _winapi.PIPE_ACCESS_INBOUND
|
||||
access = _winapi.GENERIC_WRITE
|
||||
obsize, ibsize = 0, bufsize
|
||||
|
||||
openmode |= _winapi.FILE_FLAG_FIRST_PIPE_INSTANCE
|
||||
|
||||
if overlapped[0]:
|
||||
openmode |= _winapi.FILE_FLAG_OVERLAPPED
|
||||
|
||||
if overlapped[1]:
|
||||
flags_and_attribs = _winapi.FILE_FLAG_OVERLAPPED
|
||||
else:
|
||||
flags_and_attribs = 0
|
||||
|
||||
h1 = h2 = None
|
||||
try:
|
||||
h1 = _winapi.CreateNamedPipe(
|
||||
address, openmode, _winapi.PIPE_WAIT,
|
||||
1, obsize, ibsize, _winapi.NMPWAIT_WAIT_FOREVER, _winapi.NULL)
|
||||
|
||||
h2 = _winapi.CreateFile(
|
||||
address, access, 0, _winapi.NULL, _winapi.OPEN_EXISTING,
|
||||
flags_and_attribs, _winapi.NULL)
|
||||
|
||||
ov = _winapi.ConnectNamedPipe(h1, overlapped=True)
|
||||
ov.GetOverlappedResult(True)
|
||||
return h1, h2
|
||||
except:
|
||||
if h1 is not None:
|
||||
_winapi.CloseHandle(h1)
|
||||
if h2 is not None:
|
||||
_winapi.CloseHandle(h2)
|
||||
raise
|
||||
|
||||
#
|
||||
# Wrapper for a pipe handle
|
||||
#
|
||||
|
||||
class PipeHandle:
|
||||
"""Wrapper for an overlapped pipe handle which is vaguely file-object like.
|
||||
|
||||
The IOCP event loop can use these instead of socket objects.
|
||||
"""
|
||||
def __init__(self, handle):
|
||||
self._handle = handle
|
||||
|
||||
@property
|
||||
def handle(self):
|
||||
return self._handle
|
||||
|
||||
def fileno(self):
|
||||
return self._handle
|
||||
|
||||
def close(self, *, CloseHandle=_winapi.CloseHandle):
|
||||
if self._handle != -1:
|
||||
CloseHandle(self._handle)
|
||||
self._handle = -1
|
||||
|
||||
__del__ = close
|
||||
|
||||
def __enter__(self):
|
||||
return self
|
||||
|
||||
def __exit__(self, t, v, tb):
|
||||
self.close()
|
||||
|
||||
#
|
||||
# Replacement for subprocess.Popen using overlapped pipe handles
|
||||
#
|
||||
|
||||
class Popen(subprocess.Popen):
|
||||
"""Replacement for subprocess.Popen using overlapped pipe handles.
|
||||
|
||||
The stdin, stdout, stderr are None or instances of PipeHandle.
|
||||
"""
|
||||
def __init__(self, args, stdin=None, stdout=None, stderr=None, **kwds):
|
||||
stdin_rfd = stdout_wfd = stderr_wfd = None
|
||||
stdin_wh = stdout_rh = stderr_rh = None
|
||||
if stdin == PIPE:
|
||||
stdin_rh, stdin_wh = pipe(overlapped=(False, True))
|
||||
stdin_rfd = msvcrt.open_osfhandle(stdin_rh, os.O_RDONLY)
|
||||
if stdout == PIPE:
|
||||
stdout_rh, stdout_wh = pipe(overlapped=(True, False))
|
||||
stdout_wfd = msvcrt.open_osfhandle(stdout_wh, 0)
|
||||
if stderr == PIPE:
|
||||
stderr_rh, stderr_wh = pipe(overlapped=(True, False))
|
||||
stderr_wfd = msvcrt.open_osfhandle(stderr_wh, 0)
|
||||
try:
|
||||
super().__init__(args, bufsize=0, universal_newlines=False,
|
||||
stdin=stdin_rfd, stdout=stdout_wfd,
|
||||
stderr=stderr_wfd, **kwds)
|
||||
except:
|
||||
for h in (stdin_wh, stdout_rh, stderr_rh):
|
||||
_winapi.CloseHandle(h)
|
||||
raise
|
||||
else:
|
||||
if stdin_wh is not None:
|
||||
self.stdin = PipeHandle(stdin_wh)
|
||||
if stdout_rh is not None:
|
||||
self.stdout = PipeHandle(stdout_rh)
|
||||
if stderr_rh is not None:
|
||||
self.stderr = PipeHandle(stderr_rh)
|
||||
finally:
|
||||
if stdin == PIPE:
|
||||
os.close(stdin_rfd)
|
||||
if stdout == PIPE:
|
||||
os.close(stdout_wfd)
|
||||
if stderr == PIPE:
|
||||
os.close(stderr_wfd)
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
import os
|
||||
import sys
|
||||
import unittest
|
||||
from test.support import run_unittest
|
||||
|
||||
|
||||
def suite():
|
||||
tests_file = os.path.join(os.path.dirname(__file__), 'tests.txt')
|
||||
with open(tests_file) as fp:
|
||||
test_names = fp.read().splitlines()
|
||||
tests = unittest.TestSuite()
|
||||
loader = unittest.TestLoader()
|
||||
for test_name in test_names:
|
||||
mod_name = 'test.' + test_name
|
||||
try:
|
||||
__import__(mod_name)
|
||||
except unittest.SkipTest:
|
||||
pass
|
||||
else:
|
||||
mod = sys.modules[mod_name]
|
||||
tests.addTests(loader.loadTestsFromModule(mod))
|
||||
return tests
|
||||
|
||||
|
||||
def test_main():
|
||||
run_unittest(suite())
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
from . import test_main
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
test_main()
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
import os
|
||||
|
||||
if __name__ == '__main__':
|
||||
while True:
|
||||
buf = os.read(0, 1024)
|
||||
os.write(1, buf)
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
import os
|
||||
|
||||
if __name__ == '__main__':
|
||||
buf = os.read(0, 1024)
|
||||
os.write(1, b'OUT:'+buf)
|
||||
os.write(2, b'ERR:'+buf)
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
import os
|
||||
|
||||
if __name__ == '__main__':
|
||||
while True:
|
||||
buf = os.read(0, 1024)
|
||||
try:
|
||||
os.write(1, b'OUT:'+buf)
|
||||
except OSError as ex:
|
||||
os.write(2, b'ERR:' + ex.__class__.__name__.encode('ascii'))
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
-----BEGIN CERTIFICATE-----
|
||||
MIICMzCCAZwCCQDFl4ys0fU7iTANBgkqhkiG9w0BAQUFADBeMQswCQYDVQQGEwJV
|
||||
UzETMBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNU2FuLUZyYW5jaXNjbzEi
|
||||
MCAGA1UECgwZUHl0aG9uIFNvZnR3YXJlIEZvbmRhdGlvbjAeFw0xMzAzMTgyMDA3
|
||||
MjhaFw0yMzAzMTYyMDA3MjhaMF4xCzAJBgNVBAYTAlVTMRMwEQYDVQQIDApDYWxp
|
||||
Zm9ybmlhMRYwFAYDVQQHDA1TYW4tRnJhbmNpc2NvMSIwIAYDVQQKDBlQeXRob24g
|
||||
U29mdHdhcmUgRm9uZGF0aW9uMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCn
|
||||
t3s+J7L0xP/YdAQOacpPi9phlrzKZhcXL3XMu2LCUg2fNJpx/47Vc5TZSaO11uO7
|
||||
gdwVz3Z7Q2epAgwo59JLffLt5fia8+a/SlPweI/j4+wcIIIiqusnLfpqR8cIAavg
|
||||
Z06cLYCDvb9wMlheIvSJY12skc1nnphWS2YJ0Xm6uQIDAQABMA0GCSqGSIb3DQEB
|
||||
BQUAA4GBAE9PknG6pv72+5z/gsDGYy8sK5UNkbWSNr4i4e5lxVsF03+/M71H+3AB
|
||||
MxVX4+A+Vlk2fmU+BrdHIIUE0r1dDcO3josQ9hc9OJpp5VLSQFP8VeuJCmzYPp9I
|
||||
I8WbW93cnXnChTrYQVdgVoFdv7GE9YgU7NYkrGIM0nZl1/f/bHPB
|
||||
-----END CERTIFICATE-----
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
-----BEGIN RSA PRIVATE KEY-----
|
||||
MIICXQIBAAKBgQCnt3s+J7L0xP/YdAQOacpPi9phlrzKZhcXL3XMu2LCUg2fNJpx
|
||||
/47Vc5TZSaO11uO7gdwVz3Z7Q2epAgwo59JLffLt5fia8+a/SlPweI/j4+wcIIIi
|
||||
qusnLfpqR8cIAavgZ06cLYCDvb9wMlheIvSJY12skc1nnphWS2YJ0Xm6uQIDAQAB
|
||||
AoGABfm8k19Yue3W68BecKEGS0VBV57GRTPT+MiBGvVGNIQ15gk6w3sGfMZsdD1y
|
||||
bsUkQgcDb2d/4i5poBTpl/+Cd41V+c20IC/sSl5X1IEreHMKSLhy/uyjyiyfXlP1
|
||||
iXhToFCgLWwENWc8LzfUV8vuAV5WG6oL9bnudWzZxeqx8V0CQQDR7xwVj6LN70Eb
|
||||
DUhSKLkusmFw5Gk9NJ/7wZ4eHg4B8c9KNVvSlLCLhcsVTQXuqYeFpOqytI45SneP
|
||||
lr0vrvsDAkEAzITYiXu6ox5huDCG7imX2W9CAYuX638urLxBqBXMS7GqBzojD6RL
|
||||
21Q8oPwJWJquERa3HDScq1deiQbM9uKIkwJBAIa1PLslGN216Xv3UPHPScyKD/aF
|
||||
ynXIv+OnANPoiyp6RH4ksQ/18zcEGiVH8EeNpvV9tlAHhb+DZibQHgNr74sCQQC0
|
||||
zhToplu/bVKSlUQUNO0rqrI9z30FErDewKeCw5KSsIRSU1E/uM3fHr9iyq4wiL6u
|
||||
GNjUtKZ0y46lsT9uW6LFAkB5eqeEQnshAdr3X5GykWHJ8DDGBXPPn6Rce1NX4RSq
|
||||
V9khG2z1bFyfo+hMqpYnF2k32hVq3E54RS8YYnwBsVof
|
||||
-----END RSA PRIVATE KEY-----
|
||||
|
|
@ -0,0 +1,590 @@
|
|||
"""Tests for base_events.py"""
|
||||
|
||||
import logging
|
||||
import socket
|
||||
import time
|
||||
import unittest
|
||||
import unittest.mock
|
||||
|
||||
from asyncio import base_events
|
||||
from asyncio import events
|
||||
from asyncio import futures
|
||||
from asyncio import protocols
|
||||
from asyncio import tasks
|
||||
from asyncio import test_utils
|
||||
|
||||
|
||||
class BaseEventLoopTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = base_events.BaseEventLoop()
|
||||
self.loop._selector = unittest.mock.Mock()
|
||||
events.set_event_loop(None)
|
||||
|
||||
def test_not_implemented(self):
|
||||
m = unittest.mock.Mock()
|
||||
self.assertRaises(
|
||||
NotImplementedError,
|
||||
self.loop._make_socket_transport, m, m)
|
||||
self.assertRaises(
|
||||
NotImplementedError,
|
||||
self.loop._make_ssl_transport, m, m, m, m)
|
||||
self.assertRaises(
|
||||
NotImplementedError,
|
||||
self.loop._make_datagram_transport, m, m)
|
||||
self.assertRaises(
|
||||
NotImplementedError, self.loop._process_events, [])
|
||||
self.assertRaises(
|
||||
NotImplementedError, self.loop._write_to_self)
|
||||
self.assertRaises(
|
||||
NotImplementedError, self.loop._read_from_self)
|
||||
self.assertRaises(
|
||||
NotImplementedError,
|
||||
self.loop._make_read_pipe_transport, m, m)
|
||||
self.assertRaises(
|
||||
NotImplementedError,
|
||||
self.loop._make_write_pipe_transport, m, m)
|
||||
gen = self.loop._make_subprocess_transport(m, m, m, m, m, m, m)
|
||||
self.assertRaises(NotImplementedError, next, iter(gen))
|
||||
|
||||
def test__add_callback_handle(self):
|
||||
h = events.Handle(lambda: False, ())
|
||||
|
||||
self.loop._add_callback(h)
|
||||
self.assertFalse(self.loop._scheduled)
|
||||
self.assertIn(h, self.loop._ready)
|
||||
|
||||
def test__add_callback_timer(self):
|
||||
h = events.TimerHandle(time.monotonic()+10, lambda: False, ())
|
||||
|
||||
self.loop._add_callback(h)
|
||||
self.assertIn(h, self.loop._scheduled)
|
||||
|
||||
def test__add_callback_cancelled_handle(self):
|
||||
h = events.Handle(lambda: False, ())
|
||||
h.cancel()
|
||||
|
||||
self.loop._add_callback(h)
|
||||
self.assertFalse(self.loop._scheduled)
|
||||
self.assertFalse(self.loop._ready)
|
||||
|
||||
def test_set_default_executor(self):
|
||||
executor = unittest.mock.Mock()
|
||||
self.loop.set_default_executor(executor)
|
||||
self.assertIs(executor, self.loop._default_executor)
|
||||
|
||||
def test_getnameinfo(self):
|
||||
sockaddr = unittest.mock.Mock()
|
||||
self.loop.run_in_executor = unittest.mock.Mock()
|
||||
self.loop.getnameinfo(sockaddr)
|
||||
self.assertEqual(
|
||||
(None, socket.getnameinfo, sockaddr, 0),
|
||||
self.loop.run_in_executor.call_args[0])
|
||||
|
||||
def test_call_soon(self):
|
||||
def cb():
|
||||
pass
|
||||
|
||||
h = self.loop.call_soon(cb)
|
||||
self.assertEqual(h._callback, cb)
|
||||
self.assertIsInstance(h, events.Handle)
|
||||
self.assertIn(h, self.loop._ready)
|
||||
|
||||
def test_call_later(self):
|
||||
def cb():
|
||||
pass
|
||||
|
||||
h = self.loop.call_later(10.0, cb)
|
||||
self.assertIsInstance(h, events.TimerHandle)
|
||||
self.assertIn(h, self.loop._scheduled)
|
||||
self.assertNotIn(h, self.loop._ready)
|
||||
|
||||
def test_call_later_negative_delays(self):
|
||||
calls = []
|
||||
|
||||
def cb(arg):
|
||||
calls.append(arg)
|
||||
|
||||
self.loop._process_events = unittest.mock.Mock()
|
||||
self.loop.call_later(-1, cb, 'a')
|
||||
self.loop.call_later(-2, cb, 'b')
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual(calls, ['b', 'a'])
|
||||
|
||||
def test_time_and_call_at(self):
|
||||
def cb():
|
||||
self.loop.stop()
|
||||
|
||||
self.loop._process_events = unittest.mock.Mock()
|
||||
when = self.loop.time() + 0.1
|
||||
self.loop.call_at(when, cb)
|
||||
t0 = self.loop.time()
|
||||
self.loop.run_forever()
|
||||
t1 = self.loop.time()
|
||||
self.assertTrue(0.09 <= t1-t0 <= 0.12, t1-t0)
|
||||
|
||||
def test_run_once_in_executor_handle(self):
|
||||
def cb():
|
||||
pass
|
||||
|
||||
self.assertRaises(
|
||||
AssertionError, self.loop.run_in_executor,
|
||||
None, events.Handle(cb, ()), ('',))
|
||||
self.assertRaises(
|
||||
AssertionError, self.loop.run_in_executor,
|
||||
None, events.TimerHandle(10, cb, ()))
|
||||
|
||||
def test_run_once_in_executor_cancelled(self):
|
||||
def cb():
|
||||
pass
|
||||
h = events.Handle(cb, ())
|
||||
h.cancel()
|
||||
|
||||
f = self.loop.run_in_executor(None, h)
|
||||
self.assertIsInstance(f, futures.Future)
|
||||
self.assertTrue(f.done())
|
||||
self.assertIsNone(f.result())
|
||||
|
||||
def test_run_once_in_executor_plain(self):
|
||||
def cb():
|
||||
pass
|
||||
h = events.Handle(cb, ())
|
||||
f = futures.Future(loop=self.loop)
|
||||
executor = unittest.mock.Mock()
|
||||
executor.submit.return_value = f
|
||||
|
||||
self.loop.set_default_executor(executor)
|
||||
|
||||
res = self.loop.run_in_executor(None, h)
|
||||
self.assertIs(f, res)
|
||||
|
||||
executor = unittest.mock.Mock()
|
||||
executor.submit.return_value = f
|
||||
res = self.loop.run_in_executor(executor, h)
|
||||
self.assertIs(f, res)
|
||||
self.assertTrue(executor.submit.called)
|
||||
|
||||
f.cancel() # Don't complain about abandoned Future.
|
||||
|
||||
def test__run_once(self):
|
||||
h1 = events.TimerHandle(time.monotonic() + 0.1, lambda: True, ())
|
||||
h2 = events.TimerHandle(time.monotonic() + 10.0, lambda: True, ())
|
||||
|
||||
h1.cancel()
|
||||
|
||||
self.loop._process_events = unittest.mock.Mock()
|
||||
self.loop._scheduled.append(h1)
|
||||
self.loop._scheduled.append(h2)
|
||||
self.loop._run_once()
|
||||
|
||||
t = self.loop._selector.select.call_args[0][0]
|
||||
self.assertTrue(9.99 < t < 10.1, t)
|
||||
self.assertEqual([h2], self.loop._scheduled)
|
||||
self.assertTrue(self.loop._process_events.called)
|
||||
|
||||
@unittest.mock.patch('asyncio.base_events.time')
|
||||
@unittest.mock.patch('asyncio.base_events.asyncio_log')
|
||||
def test__run_once_logging(self, m_logging, m_time):
|
||||
# Log to INFO level if timeout > 1.0 sec.
|
||||
idx = -1
|
||||
data = [10.0, 10.0, 12.0, 13.0]
|
||||
|
||||
def monotonic():
|
||||
nonlocal data, idx
|
||||
idx += 1
|
||||
return data[idx]
|
||||
|
||||
m_time.monotonic = monotonic
|
||||
m_logging.INFO = logging.INFO
|
||||
m_logging.DEBUG = logging.DEBUG
|
||||
|
||||
self.loop._scheduled.append(
|
||||
events.TimerHandle(11.0, lambda: True, ()))
|
||||
self.loop._process_events = unittest.mock.Mock()
|
||||
self.loop._run_once()
|
||||
self.assertEqual(logging.INFO, m_logging.log.call_args[0][0])
|
||||
|
||||
idx = -1
|
||||
data = [10.0, 10.0, 10.3, 13.0]
|
||||
self.loop._scheduled = [events.TimerHandle(11.0, lambda:True, ())]
|
||||
self.loop._run_once()
|
||||
self.assertEqual(logging.DEBUG, m_logging.log.call_args[0][0])
|
||||
|
||||
def test__run_once_schedule_handle(self):
|
||||
handle = None
|
||||
processed = False
|
||||
|
||||
def cb(loop):
|
||||
nonlocal processed, handle
|
||||
processed = True
|
||||
handle = loop.call_soon(lambda: True)
|
||||
|
||||
h = events.TimerHandle(time.monotonic() - 1, cb, (self.loop,))
|
||||
|
||||
self.loop._process_events = unittest.mock.Mock()
|
||||
self.loop._scheduled.append(h)
|
||||
self.loop._run_once()
|
||||
|
||||
self.assertTrue(processed)
|
||||
self.assertEqual([handle], list(self.loop._ready))
|
||||
|
||||
def test_run_until_complete_type_error(self):
|
||||
self.assertRaises(
|
||||
TypeError, self.loop.run_until_complete, 'blah')
|
||||
|
||||
|
||||
class MyProto(protocols.Protocol):
|
||||
done = None
|
||||
|
||||
def __init__(self, create_future=False):
|
||||
self.state = 'INITIAL'
|
||||
self.nbytes = 0
|
||||
if create_future:
|
||||
self.done = futures.Future()
|
||||
|
||||
def connection_made(self, transport):
|
||||
self.transport = transport
|
||||
assert self.state == 'INITIAL', self.state
|
||||
self.state = 'CONNECTED'
|
||||
transport.write(b'GET / HTTP/1.0\r\nHost: example.com\r\n\r\n')
|
||||
|
||||
def data_received(self, data):
|
||||
assert self.state == 'CONNECTED', self.state
|
||||
self.nbytes += len(data)
|
||||
|
||||
def eof_received(self):
|
||||
assert self.state == 'CONNECTED', self.state
|
||||
self.state = 'EOF'
|
||||
|
||||
def connection_lost(self, exc):
|
||||
assert self.state in ('CONNECTED', 'EOF'), self.state
|
||||
self.state = 'CLOSED'
|
||||
if self.done:
|
||||
self.done.set_result(None)
|
||||
|
||||
|
||||
class MyDatagramProto(protocols.DatagramProtocol):
|
||||
done = None
|
||||
|
||||
def __init__(self, create_future=False):
|
||||
self.state = 'INITIAL'
|
||||
self.nbytes = 0
|
||||
if create_future:
|
||||
self.done = futures.Future()
|
||||
|
||||
def connection_made(self, transport):
|
||||
self.transport = transport
|
||||
assert self.state == 'INITIAL', self.state
|
||||
self.state = 'INITIALIZED'
|
||||
|
||||
def datagram_received(self, data, addr):
|
||||
assert self.state == 'INITIALIZED', self.state
|
||||
self.nbytes += len(data)
|
||||
|
||||
def connection_refused(self, exc):
|
||||
assert self.state == 'INITIALIZED', self.state
|
||||
|
||||
def connection_lost(self, exc):
|
||||
assert self.state == 'INITIALIZED', self.state
|
||||
self.state = 'CLOSED'
|
||||
if self.done:
|
||||
self.done.set_result(None)
|
||||
|
||||
|
||||
class BaseEventLoopWithSelectorTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = events.new_event_loop()
|
||||
events.set_event_loop(None)
|
||||
|
||||
def tearDown(self):
|
||||
self.loop.close()
|
||||
|
||||
@unittest.mock.patch('asyncio.base_events.socket')
|
||||
def test_create_connection_multiple_errors(self, m_socket):
|
||||
|
||||
class MyProto(protocols.Protocol):
|
||||
pass
|
||||
|
||||
@tasks.coroutine
|
||||
def getaddrinfo(*args, **kw):
|
||||
yield from []
|
||||
return [(2, 1, 6, '', ('107.6.106.82', 80)),
|
||||
(2, 1, 6, '', ('107.6.106.82', 80))]
|
||||
|
||||
def getaddrinfo_task(*args, **kwds):
|
||||
return tasks.Task(getaddrinfo(*args, **kwds), loop=self.loop)
|
||||
|
||||
idx = -1
|
||||
errors = ['err1', 'err2']
|
||||
|
||||
def _socket(*args, **kw):
|
||||
nonlocal idx, errors
|
||||
idx += 1
|
||||
raise OSError(errors[idx])
|
||||
|
||||
m_socket.socket = _socket
|
||||
|
||||
self.loop.getaddrinfo = getaddrinfo_task
|
||||
|
||||
coro = self.loop.create_connection(MyProto, 'example.com', 80)
|
||||
with self.assertRaises(OSError) as cm:
|
||||
self.loop.run_until_complete(coro)
|
||||
|
||||
self.assertEqual(str(cm.exception), 'Multiple exceptions: err1, err2')
|
||||
|
||||
def test_create_connection_host_port_sock(self):
|
||||
coro = self.loop.create_connection(
|
||||
MyProto, 'example.com', 80, sock=object())
|
||||
self.assertRaises(ValueError, self.loop.run_until_complete, coro)
|
||||
|
||||
def test_create_connection_no_host_port_sock(self):
|
||||
coro = self.loop.create_connection(MyProto)
|
||||
self.assertRaises(ValueError, self.loop.run_until_complete, coro)
|
||||
|
||||
def test_create_connection_no_getaddrinfo(self):
|
||||
@tasks.coroutine
|
||||
def getaddrinfo(*args, **kw):
|
||||
yield from []
|
||||
|
||||
def getaddrinfo_task(*args, **kwds):
|
||||
return tasks.Task(getaddrinfo(*args, **kwds), loop=self.loop)
|
||||
|
||||
self.loop.getaddrinfo = getaddrinfo_task
|
||||
coro = self.loop.create_connection(MyProto, 'example.com', 80)
|
||||
self.assertRaises(
|
||||
OSError, self.loop.run_until_complete, coro)
|
||||
|
||||
def test_create_connection_connect_err(self):
|
||||
@tasks.coroutine
|
||||
def getaddrinfo(*args, **kw):
|
||||
yield from []
|
||||
return [(2, 1, 6, '', ('107.6.106.82', 80))]
|
||||
|
||||
def getaddrinfo_task(*args, **kwds):
|
||||
return tasks.Task(getaddrinfo(*args, **kwds), loop=self.loop)
|
||||
|
||||
self.loop.getaddrinfo = getaddrinfo_task
|
||||
self.loop.sock_connect = unittest.mock.Mock()
|
||||
self.loop.sock_connect.side_effect = OSError
|
||||
|
||||
coro = self.loop.create_connection(MyProto, 'example.com', 80)
|
||||
self.assertRaises(
|
||||
OSError, self.loop.run_until_complete, coro)
|
||||
|
||||
def test_create_connection_multiple(self):
|
||||
@tasks.coroutine
|
||||
def getaddrinfo(*args, **kw):
|
||||
return [(2, 1, 6, '', ('0.0.0.1', 80)),
|
||||
(2, 1, 6, '', ('0.0.0.2', 80))]
|
||||
|
||||
def getaddrinfo_task(*args, **kwds):
|
||||
return tasks.Task(getaddrinfo(*args, **kwds), loop=self.loop)
|
||||
|
||||
self.loop.getaddrinfo = getaddrinfo_task
|
||||
self.loop.sock_connect = unittest.mock.Mock()
|
||||
self.loop.sock_connect.side_effect = OSError
|
||||
|
||||
coro = self.loop.create_connection(
|
||||
MyProto, 'example.com', 80, family=socket.AF_INET)
|
||||
with self.assertRaises(OSError):
|
||||
self.loop.run_until_complete(coro)
|
||||
|
||||
@unittest.mock.patch('asyncio.base_events.socket')
|
||||
def test_create_connection_multiple_errors_local_addr(self, m_socket):
|
||||
|
||||
def bind(addr):
|
||||
if addr[0] == '0.0.0.1':
|
||||
err = OSError('Err')
|
||||
err.strerror = 'Err'
|
||||
raise err
|
||||
|
||||
m_socket.socket.return_value.bind = bind
|
||||
|
||||
@tasks.coroutine
|
||||
def getaddrinfo(*args, **kw):
|
||||
return [(2, 1, 6, '', ('0.0.0.1', 80)),
|
||||
(2, 1, 6, '', ('0.0.0.2', 80))]
|
||||
|
||||
def getaddrinfo_task(*args, **kwds):
|
||||
return tasks.Task(getaddrinfo(*args, **kwds), loop=self.loop)
|
||||
|
||||
self.loop.getaddrinfo = getaddrinfo_task
|
||||
self.loop.sock_connect = unittest.mock.Mock()
|
||||
self.loop.sock_connect.side_effect = OSError('Err2')
|
||||
|
||||
coro = self.loop.create_connection(
|
||||
MyProto, 'example.com', 80, family=socket.AF_INET,
|
||||
local_addr=(None, 8080))
|
||||
with self.assertRaises(OSError) as cm:
|
||||
self.loop.run_until_complete(coro)
|
||||
|
||||
self.assertTrue(str(cm.exception).startswith('Multiple exceptions: '))
|
||||
self.assertTrue(m_socket.socket.return_value.close.called)
|
||||
|
||||
def test_create_connection_no_local_addr(self):
|
||||
@tasks.coroutine
|
||||
def getaddrinfo(host, *args, **kw):
|
||||
if host == 'example.com':
|
||||
return [(2, 1, 6, '', ('107.6.106.82', 80)),
|
||||
(2, 1, 6, '', ('107.6.106.82', 80))]
|
||||
else:
|
||||
return []
|
||||
|
||||
def getaddrinfo_task(*args, **kwds):
|
||||
return tasks.Task(getaddrinfo(*args, **kwds), loop=self.loop)
|
||||
self.loop.getaddrinfo = getaddrinfo_task
|
||||
|
||||
coro = self.loop.create_connection(
|
||||
MyProto, 'example.com', 80, family=socket.AF_INET,
|
||||
local_addr=(None, 8080))
|
||||
self.assertRaises(
|
||||
OSError, self.loop.run_until_complete, coro)
|
||||
|
||||
def test_create_server_empty_host(self):
|
||||
# if host is empty string use None instead
|
||||
host = object()
|
||||
|
||||
@tasks.coroutine
|
||||
def getaddrinfo(*args, **kw):
|
||||
nonlocal host
|
||||
host = args[0]
|
||||
yield from []
|
||||
|
||||
def getaddrinfo_task(*args, **kwds):
|
||||
return tasks.Task(getaddrinfo(*args, **kwds), loop=self.loop)
|
||||
|
||||
self.loop.getaddrinfo = getaddrinfo_task
|
||||
fut = self.loop.create_server(MyProto, '', 0)
|
||||
self.assertRaises(OSError, self.loop.run_until_complete, fut)
|
||||
self.assertIsNone(host)
|
||||
|
||||
def test_create_server_host_port_sock(self):
|
||||
fut = self.loop.create_server(
|
||||
MyProto, '0.0.0.0', 0, sock=object())
|
||||
self.assertRaises(ValueError, self.loop.run_until_complete, fut)
|
||||
|
||||
def test_create_server_no_host_port_sock(self):
|
||||
fut = self.loop.create_server(MyProto)
|
||||
self.assertRaises(ValueError, self.loop.run_until_complete, fut)
|
||||
|
||||
def test_create_server_no_getaddrinfo(self):
|
||||
getaddrinfo = self.loop.getaddrinfo = unittest.mock.Mock()
|
||||
getaddrinfo.return_value = []
|
||||
|
||||
f = self.loop.create_server(MyProto, '0.0.0.0', 0)
|
||||
self.assertRaises(OSError, self.loop.run_until_complete, f)
|
||||
|
||||
@unittest.mock.patch('asyncio.base_events.socket')
|
||||
def test_create_server_cant_bind(self, m_socket):
|
||||
|
||||
class Err(OSError):
|
||||
strerror = 'error'
|
||||
|
||||
m_socket.getaddrinfo.return_value = [
|
||||
(2, 1, 6, '', ('127.0.0.1', 10100))]
|
||||
m_sock = m_socket.socket.return_value = unittest.mock.Mock()
|
||||
m_sock.bind.side_effect = Err
|
||||
|
||||
fut = self.loop.create_server(MyProto, '0.0.0.0', 0)
|
||||
self.assertRaises(OSError, self.loop.run_until_complete, fut)
|
||||
self.assertTrue(m_sock.close.called)
|
||||
|
||||
@unittest.mock.patch('asyncio.base_events.socket')
|
||||
def test_create_datagram_endpoint_no_addrinfo(self, m_socket):
|
||||
m_socket.getaddrinfo.return_value = []
|
||||
|
||||
coro = self.loop.create_datagram_endpoint(
|
||||
MyDatagramProto, local_addr=('localhost', 0))
|
||||
self.assertRaises(
|
||||
OSError, self.loop.run_until_complete, coro)
|
||||
|
||||
def test_create_datagram_endpoint_addr_error(self):
|
||||
coro = self.loop.create_datagram_endpoint(
|
||||
MyDatagramProto, local_addr='localhost')
|
||||
self.assertRaises(
|
||||
AssertionError, self.loop.run_until_complete, coro)
|
||||
coro = self.loop.create_datagram_endpoint(
|
||||
MyDatagramProto, local_addr=('localhost', 1, 2, 3))
|
||||
self.assertRaises(
|
||||
AssertionError, self.loop.run_until_complete, coro)
|
||||
|
||||
def test_create_datagram_endpoint_connect_err(self):
|
||||
self.loop.sock_connect = unittest.mock.Mock()
|
||||
self.loop.sock_connect.side_effect = OSError
|
||||
|
||||
coro = self.loop.create_datagram_endpoint(
|
||||
protocols.DatagramProtocol, remote_addr=('127.0.0.1', 0))
|
||||
self.assertRaises(
|
||||
OSError, self.loop.run_until_complete, coro)
|
||||
|
||||
@unittest.mock.patch('asyncio.base_events.socket')
|
||||
def test_create_datagram_endpoint_socket_err(self, m_socket):
|
||||
m_socket.getaddrinfo = socket.getaddrinfo
|
||||
m_socket.socket.side_effect = OSError
|
||||
|
||||
coro = self.loop.create_datagram_endpoint(
|
||||
protocols.DatagramProtocol, family=socket.AF_INET)
|
||||
self.assertRaises(
|
||||
OSError, self.loop.run_until_complete, coro)
|
||||
|
||||
coro = self.loop.create_datagram_endpoint(
|
||||
protocols.DatagramProtocol, local_addr=('127.0.0.1', 0))
|
||||
self.assertRaises(
|
||||
OSError, self.loop.run_until_complete, coro)
|
||||
|
||||
def test_create_datagram_endpoint_no_matching_family(self):
|
||||
coro = self.loop.create_datagram_endpoint(
|
||||
protocols.DatagramProtocol,
|
||||
remote_addr=('127.0.0.1', 0), local_addr=('::1', 0))
|
||||
self.assertRaises(
|
||||
ValueError, self.loop.run_until_complete, coro)
|
||||
|
||||
@unittest.mock.patch('asyncio.base_events.socket')
|
||||
def test_create_datagram_endpoint_setblk_err(self, m_socket):
|
||||
m_socket.socket.return_value.setblocking.side_effect = OSError
|
||||
|
||||
coro = self.loop.create_datagram_endpoint(
|
||||
protocols.DatagramProtocol, family=socket.AF_INET)
|
||||
self.assertRaises(
|
||||
OSError, self.loop.run_until_complete, coro)
|
||||
self.assertTrue(
|
||||
m_socket.socket.return_value.close.called)
|
||||
|
||||
def test_create_datagram_endpoint_noaddr_nofamily(self):
|
||||
coro = self.loop.create_datagram_endpoint(
|
||||
protocols.DatagramProtocol)
|
||||
self.assertRaises(ValueError, self.loop.run_until_complete, coro)
|
||||
|
||||
@unittest.mock.patch('asyncio.base_events.socket')
|
||||
def test_create_datagram_endpoint_cant_bind(self, m_socket):
|
||||
class Err(OSError):
|
||||
pass
|
||||
|
||||
m_socket.AF_INET6 = socket.AF_INET6
|
||||
m_socket.getaddrinfo = socket.getaddrinfo
|
||||
m_sock = m_socket.socket.return_value = unittest.mock.Mock()
|
||||
m_sock.bind.side_effect = Err
|
||||
|
||||
fut = self.loop.create_datagram_endpoint(
|
||||
MyDatagramProto,
|
||||
local_addr=('127.0.0.1', 0), family=socket.AF_INET)
|
||||
self.assertRaises(Err, self.loop.run_until_complete, fut)
|
||||
self.assertTrue(m_sock.close.called)
|
||||
|
||||
def test_accept_connection_retry(self):
|
||||
sock = unittest.mock.Mock()
|
||||
sock.accept.side_effect = BlockingIOError()
|
||||
|
||||
self.loop._accept_connection(MyProto, sock)
|
||||
self.assertFalse(sock.close.called)
|
||||
|
||||
@unittest.mock.patch('asyncio.selector_events.asyncio_log')
|
||||
def test_accept_connection_exception(self, m_log):
|
||||
sock = unittest.mock.Mock()
|
||||
sock.fileno.return_value = 10
|
||||
sock.accept.side_effect = OSError()
|
||||
|
||||
self.loop._accept_connection(MyProto, sock)
|
||||
self.assertTrue(sock.close.called)
|
||||
self.assertTrue(m_log.exception.called)
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,329 @@
|
|||
"""Tests for futures.py."""
|
||||
|
||||
import concurrent.futures
|
||||
import threading
|
||||
import unittest
|
||||
import unittest.mock
|
||||
|
||||
from asyncio import events
|
||||
from asyncio import futures
|
||||
from asyncio import test_utils
|
||||
|
||||
|
||||
def _fakefunc(f):
|
||||
return f
|
||||
|
||||
|
||||
class FutureTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = test_utils.TestLoop()
|
||||
events.set_event_loop(None)
|
||||
|
||||
def tearDown(self):
|
||||
self.loop.close()
|
||||
|
||||
def test_initial_state(self):
|
||||
f = futures.Future(loop=self.loop)
|
||||
self.assertFalse(f.cancelled())
|
||||
self.assertFalse(f.done())
|
||||
f.cancel()
|
||||
self.assertTrue(f.cancelled())
|
||||
|
||||
def test_init_constructor_default_loop(self):
|
||||
try:
|
||||
events.set_event_loop(self.loop)
|
||||
f = futures.Future()
|
||||
self.assertIs(f._loop, self.loop)
|
||||
finally:
|
||||
events.set_event_loop(None)
|
||||
|
||||
def test_constructor_positional(self):
|
||||
# Make sure Future does't accept a positional argument
|
||||
self.assertRaises(TypeError, futures.Future, 42)
|
||||
|
||||
def test_cancel(self):
|
||||
f = futures.Future(loop=self.loop)
|
||||
self.assertTrue(f.cancel())
|
||||
self.assertTrue(f.cancelled())
|
||||
self.assertTrue(f.done())
|
||||
self.assertRaises(futures.CancelledError, f.result)
|
||||
self.assertRaises(futures.CancelledError, f.exception)
|
||||
self.assertRaises(futures.InvalidStateError, f.set_result, None)
|
||||
self.assertRaises(futures.InvalidStateError, f.set_exception, None)
|
||||
self.assertFalse(f.cancel())
|
||||
|
||||
def test_result(self):
|
||||
f = futures.Future(loop=self.loop)
|
||||
self.assertRaises(futures.InvalidStateError, f.result)
|
||||
|
||||
f.set_result(42)
|
||||
self.assertFalse(f.cancelled())
|
||||
self.assertTrue(f.done())
|
||||
self.assertEqual(f.result(), 42)
|
||||
self.assertEqual(f.exception(), None)
|
||||
self.assertRaises(futures.InvalidStateError, f.set_result, None)
|
||||
self.assertRaises(futures.InvalidStateError, f.set_exception, None)
|
||||
self.assertFalse(f.cancel())
|
||||
|
||||
def test_exception(self):
|
||||
exc = RuntimeError()
|
||||
f = futures.Future(loop=self.loop)
|
||||
self.assertRaises(futures.InvalidStateError, f.exception)
|
||||
|
||||
f.set_exception(exc)
|
||||
self.assertFalse(f.cancelled())
|
||||
self.assertTrue(f.done())
|
||||
self.assertRaises(RuntimeError, f.result)
|
||||
self.assertEqual(f.exception(), exc)
|
||||
self.assertRaises(futures.InvalidStateError, f.set_result, None)
|
||||
self.assertRaises(futures.InvalidStateError, f.set_exception, None)
|
||||
self.assertFalse(f.cancel())
|
||||
|
||||
def test_yield_from_twice(self):
|
||||
f = futures.Future(loop=self.loop)
|
||||
|
||||
def fixture():
|
||||
yield 'A'
|
||||
x = yield from f
|
||||
yield 'B', x
|
||||
y = yield from f
|
||||
yield 'C', y
|
||||
|
||||
g = fixture()
|
||||
self.assertEqual(next(g), 'A') # yield 'A'.
|
||||
self.assertEqual(next(g), f) # First yield from f.
|
||||
f.set_result(42)
|
||||
self.assertEqual(next(g), ('B', 42)) # yield 'B', x.
|
||||
# The second "yield from f" does not yield f.
|
||||
self.assertEqual(next(g), ('C', 42)) # yield 'C', y.
|
||||
|
||||
def test_repr(self):
|
||||
f_pending = futures.Future(loop=self.loop)
|
||||
self.assertEqual(repr(f_pending), 'Future<PENDING>')
|
||||
f_pending.cancel()
|
||||
|
||||
f_cancelled = futures.Future(loop=self.loop)
|
||||
f_cancelled.cancel()
|
||||
self.assertEqual(repr(f_cancelled), 'Future<CANCELLED>')
|
||||
|
||||
f_result = futures.Future(loop=self.loop)
|
||||
f_result.set_result(4)
|
||||
self.assertEqual(repr(f_result), 'Future<result=4>')
|
||||
self.assertEqual(f_result.result(), 4)
|
||||
|
||||
exc = RuntimeError()
|
||||
f_exception = futures.Future(loop=self.loop)
|
||||
f_exception.set_exception(exc)
|
||||
self.assertEqual(repr(f_exception), 'Future<exception=RuntimeError()>')
|
||||
self.assertIs(f_exception.exception(), exc)
|
||||
|
||||
f_few_callbacks = futures.Future(loop=self.loop)
|
||||
f_few_callbacks.add_done_callback(_fakefunc)
|
||||
self.assertIn('Future<PENDING, [<function _fakefunc',
|
||||
repr(f_few_callbacks))
|
||||
f_few_callbacks.cancel()
|
||||
|
||||
f_many_callbacks = futures.Future(loop=self.loop)
|
||||
for i in range(20):
|
||||
f_many_callbacks.add_done_callback(_fakefunc)
|
||||
r = repr(f_many_callbacks)
|
||||
self.assertIn('Future<PENDING, [<function _fakefunc', r)
|
||||
self.assertIn('<18 more>', r)
|
||||
f_many_callbacks.cancel()
|
||||
|
||||
def test_copy_state(self):
|
||||
# Test the internal _copy_state method since it's being directly
|
||||
# invoked in other modules.
|
||||
f = futures.Future(loop=self.loop)
|
||||
f.set_result(10)
|
||||
|
||||
newf = futures.Future(loop=self.loop)
|
||||
newf._copy_state(f)
|
||||
self.assertTrue(newf.done())
|
||||
self.assertEqual(newf.result(), 10)
|
||||
|
||||
f_exception = futures.Future(loop=self.loop)
|
||||
f_exception.set_exception(RuntimeError())
|
||||
|
||||
newf_exception = futures.Future(loop=self.loop)
|
||||
newf_exception._copy_state(f_exception)
|
||||
self.assertTrue(newf_exception.done())
|
||||
self.assertRaises(RuntimeError, newf_exception.result)
|
||||
|
||||
f_cancelled = futures.Future(loop=self.loop)
|
||||
f_cancelled.cancel()
|
||||
|
||||
newf_cancelled = futures.Future(loop=self.loop)
|
||||
newf_cancelled._copy_state(f_cancelled)
|
||||
self.assertTrue(newf_cancelled.cancelled())
|
||||
|
||||
def test_iter(self):
|
||||
fut = futures.Future(loop=self.loop)
|
||||
|
||||
def coro():
|
||||
yield from fut
|
||||
|
||||
def test():
|
||||
arg1, arg2 = coro()
|
||||
|
||||
self.assertRaises(AssertionError, test)
|
||||
fut.cancel()
|
||||
|
||||
@unittest.mock.patch('asyncio.futures.asyncio_log')
|
||||
def test_tb_logger_abandoned(self, m_log):
|
||||
fut = futures.Future(loop=self.loop)
|
||||
del fut
|
||||
self.assertFalse(m_log.error.called)
|
||||
|
||||
@unittest.mock.patch('asyncio.futures.asyncio_log')
|
||||
def test_tb_logger_result_unretrieved(self, m_log):
|
||||
fut = futures.Future(loop=self.loop)
|
||||
fut.set_result(42)
|
||||
del fut
|
||||
self.assertFalse(m_log.error.called)
|
||||
|
||||
@unittest.mock.patch('asyncio.futures.asyncio_log')
|
||||
def test_tb_logger_result_retrieved(self, m_log):
|
||||
fut = futures.Future(loop=self.loop)
|
||||
fut.set_result(42)
|
||||
fut.result()
|
||||
del fut
|
||||
self.assertFalse(m_log.error.called)
|
||||
|
||||
@unittest.mock.patch('asyncio.futures.asyncio_log')
|
||||
def test_tb_logger_exception_unretrieved(self, m_log):
|
||||
fut = futures.Future(loop=self.loop)
|
||||
fut.set_exception(RuntimeError('boom'))
|
||||
del fut
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertTrue(m_log.error.called)
|
||||
|
||||
@unittest.mock.patch('asyncio.futures.asyncio_log')
|
||||
def test_tb_logger_exception_retrieved(self, m_log):
|
||||
fut = futures.Future(loop=self.loop)
|
||||
fut.set_exception(RuntimeError('boom'))
|
||||
fut.exception()
|
||||
del fut
|
||||
self.assertFalse(m_log.error.called)
|
||||
|
||||
@unittest.mock.patch('asyncio.futures.asyncio_log')
|
||||
def test_tb_logger_exception_result_retrieved(self, m_log):
|
||||
fut = futures.Future(loop=self.loop)
|
||||
fut.set_exception(RuntimeError('boom'))
|
||||
self.assertRaises(RuntimeError, fut.result)
|
||||
del fut
|
||||
self.assertFalse(m_log.error.called)
|
||||
|
||||
def test_wrap_future(self):
|
||||
|
||||
def run(arg):
|
||||
return (arg, threading.get_ident())
|
||||
ex = concurrent.futures.ThreadPoolExecutor(1)
|
||||
f1 = ex.submit(run, 'oi')
|
||||
f2 = futures.wrap_future(f1, loop=self.loop)
|
||||
res, ident = self.loop.run_until_complete(f2)
|
||||
self.assertIsInstance(f2, futures.Future)
|
||||
self.assertEqual(res, 'oi')
|
||||
self.assertNotEqual(ident, threading.get_ident())
|
||||
|
||||
def test_wrap_future_future(self):
|
||||
f1 = futures.Future(loop=self.loop)
|
||||
f2 = futures.wrap_future(f1)
|
||||
self.assertIs(f1, f2)
|
||||
|
||||
@unittest.mock.patch('asyncio.futures.events')
|
||||
def test_wrap_future_use_global_loop(self, m_events):
|
||||
def run(arg):
|
||||
return (arg, threading.get_ident())
|
||||
ex = concurrent.futures.ThreadPoolExecutor(1)
|
||||
f1 = ex.submit(run, 'oi')
|
||||
f2 = futures.wrap_future(f1)
|
||||
self.assertIs(m_events.get_event_loop.return_value, f2._loop)
|
||||
|
||||
|
||||
class FutureDoneCallbackTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = test_utils.TestLoop()
|
||||
events.set_event_loop(None)
|
||||
|
||||
def tearDown(self):
|
||||
self.loop.close()
|
||||
|
||||
def run_briefly(self):
|
||||
test_utils.run_briefly(self.loop)
|
||||
|
||||
def _make_callback(self, bag, thing):
|
||||
# Create a callback function that appends thing to bag.
|
||||
def bag_appender(future):
|
||||
bag.append(thing)
|
||||
return bag_appender
|
||||
|
||||
def _new_future(self):
|
||||
return futures.Future(loop=self.loop)
|
||||
|
||||
def test_callbacks_invoked_on_set_result(self):
|
||||
bag = []
|
||||
f = self._new_future()
|
||||
f.add_done_callback(self._make_callback(bag, 42))
|
||||
f.add_done_callback(self._make_callback(bag, 17))
|
||||
|
||||
self.assertEqual(bag, [])
|
||||
f.set_result('foo')
|
||||
|
||||
self.run_briefly()
|
||||
|
||||
self.assertEqual(bag, [42, 17])
|
||||
self.assertEqual(f.result(), 'foo')
|
||||
|
||||
def test_callbacks_invoked_on_set_exception(self):
|
||||
bag = []
|
||||
f = self._new_future()
|
||||
f.add_done_callback(self._make_callback(bag, 100))
|
||||
|
||||
self.assertEqual(bag, [])
|
||||
exc = RuntimeError()
|
||||
f.set_exception(exc)
|
||||
|
||||
self.run_briefly()
|
||||
|
||||
self.assertEqual(bag, [100])
|
||||
self.assertEqual(f.exception(), exc)
|
||||
|
||||
def test_remove_done_callback(self):
|
||||
bag = []
|
||||
f = self._new_future()
|
||||
cb1 = self._make_callback(bag, 1)
|
||||
cb2 = self._make_callback(bag, 2)
|
||||
cb3 = self._make_callback(bag, 3)
|
||||
|
||||
# Add one cb1 and one cb2.
|
||||
f.add_done_callback(cb1)
|
||||
f.add_done_callback(cb2)
|
||||
|
||||
# One instance of cb2 removed. Now there's only one cb1.
|
||||
self.assertEqual(f.remove_done_callback(cb2), 1)
|
||||
|
||||
# Never had any cb3 in there.
|
||||
self.assertEqual(f.remove_done_callback(cb3), 0)
|
||||
|
||||
# After this there will be 6 instances of cb1 and one of cb2.
|
||||
f.add_done_callback(cb2)
|
||||
for i in range(5):
|
||||
f.add_done_callback(cb1)
|
||||
|
||||
# Remove all instances of cb1. One cb2 remains.
|
||||
self.assertEqual(f.remove_done_callback(cb1), 6)
|
||||
|
||||
self.assertEqual(bag, [])
|
||||
f.set_result('foo')
|
||||
|
||||
self.run_briefly()
|
||||
|
||||
self.assertEqual(bag, [2])
|
||||
self.assertEqual(f.result(), 'foo')
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
unittest.main()
|
||||
|
|
@ -0,0 +1,765 @@
|
|||
"""Tests for lock.py"""
|
||||
|
||||
import unittest
|
||||
import unittest.mock
|
||||
|
||||
from asyncio import events
|
||||
from asyncio import futures
|
||||
from asyncio import locks
|
||||
from asyncio import tasks
|
||||
from asyncio import test_utils
|
||||
|
||||
|
||||
class LockTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = test_utils.TestLoop()
|
||||
events.set_event_loop(None)
|
||||
|
||||
def tearDown(self):
|
||||
self.loop.close()
|
||||
|
||||
def test_ctor_loop(self):
|
||||
loop = unittest.mock.Mock()
|
||||
lock = locks.Lock(loop=loop)
|
||||
self.assertIs(lock._loop, loop)
|
||||
|
||||
lock = locks.Lock(loop=self.loop)
|
||||
self.assertIs(lock._loop, self.loop)
|
||||
|
||||
def test_ctor_noloop(self):
|
||||
try:
|
||||
events.set_event_loop(self.loop)
|
||||
lock = locks.Lock()
|
||||
self.assertIs(lock._loop, self.loop)
|
||||
finally:
|
||||
events.set_event_loop(None)
|
||||
|
||||
def test_repr(self):
|
||||
lock = locks.Lock(loop=self.loop)
|
||||
self.assertTrue(repr(lock).endswith('[unlocked]>'))
|
||||
|
||||
@tasks.coroutine
|
||||
def acquire_lock():
|
||||
yield from lock
|
||||
|
||||
self.loop.run_until_complete(acquire_lock())
|
||||
self.assertTrue(repr(lock).endswith('[locked]>'))
|
||||
|
||||
def test_lock(self):
|
||||
lock = locks.Lock(loop=self.loop)
|
||||
|
||||
@tasks.coroutine
|
||||
def acquire_lock():
|
||||
return (yield from lock)
|
||||
|
||||
res = self.loop.run_until_complete(acquire_lock())
|
||||
|
||||
self.assertTrue(res)
|
||||
self.assertTrue(lock.locked())
|
||||
|
||||
lock.release()
|
||||
self.assertFalse(lock.locked())
|
||||
|
||||
def test_acquire(self):
|
||||
lock = locks.Lock(loop=self.loop)
|
||||
result = []
|
||||
|
||||
self.assertTrue(self.loop.run_until_complete(lock.acquire()))
|
||||
|
||||
@tasks.coroutine
|
||||
def c1(result):
|
||||
if (yield from lock.acquire()):
|
||||
result.append(1)
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def c2(result):
|
||||
if (yield from lock.acquire()):
|
||||
result.append(2)
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def c3(result):
|
||||
if (yield from lock.acquire()):
|
||||
result.append(3)
|
||||
return True
|
||||
|
||||
t1 = tasks.Task(c1(result), loop=self.loop)
|
||||
t2 = tasks.Task(c2(result), loop=self.loop)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([], result)
|
||||
|
||||
lock.release()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1], result)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1], result)
|
||||
|
||||
t3 = tasks.Task(c3(result), loop=self.loop)
|
||||
|
||||
lock.release()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1, 2], result)
|
||||
|
||||
lock.release()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1, 2, 3], result)
|
||||
|
||||
self.assertTrue(t1.done())
|
||||
self.assertTrue(t1.result())
|
||||
self.assertTrue(t2.done())
|
||||
self.assertTrue(t2.result())
|
||||
self.assertTrue(t3.done())
|
||||
self.assertTrue(t3.result())
|
||||
|
||||
def test_acquire_cancel(self):
|
||||
lock = locks.Lock(loop=self.loop)
|
||||
self.assertTrue(self.loop.run_until_complete(lock.acquire()))
|
||||
|
||||
task = tasks.Task(lock.acquire(), loop=self.loop)
|
||||
self.loop.call_soon(task.cancel)
|
||||
self.assertRaises(
|
||||
futures.CancelledError,
|
||||
self.loop.run_until_complete, task)
|
||||
self.assertFalse(lock._waiters)
|
||||
|
||||
def test_cancel_race(self):
|
||||
# Several tasks:
|
||||
# - A acquires the lock
|
||||
# - B is blocked in aqcuire()
|
||||
# - C is blocked in aqcuire()
|
||||
#
|
||||
# Now, concurrently:
|
||||
# - B is cancelled
|
||||
# - A releases the lock
|
||||
#
|
||||
# If B's waiter is marked cancelled but not yet removed from
|
||||
# _waiters, A's release() call will crash when trying to set
|
||||
# B's waiter; instead, it should move on to C's waiter.
|
||||
|
||||
# Setup: A has the lock, b and c are waiting.
|
||||
lock = locks.Lock(loop=self.loop)
|
||||
|
||||
@tasks.coroutine
|
||||
def lockit(name, blocker):
|
||||
yield from lock.acquire()
|
||||
try:
|
||||
if blocker is not None:
|
||||
yield from blocker
|
||||
finally:
|
||||
lock.release()
|
||||
|
||||
fa = futures.Future(loop=self.loop)
|
||||
ta = tasks.Task(lockit('A', fa), loop=self.loop)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertTrue(lock.locked())
|
||||
tb = tasks.Task(lockit('B', None), loop=self.loop)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual(len(lock._waiters), 1)
|
||||
tc = tasks.Task(lockit('C', None), loop=self.loop)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual(len(lock._waiters), 2)
|
||||
|
||||
# Create the race and check.
|
||||
# Without the fix this failed at the last assert.
|
||||
fa.set_result(None)
|
||||
tb.cancel()
|
||||
self.assertTrue(lock._waiters[0].cancelled())
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertFalse(lock.locked())
|
||||
self.assertTrue(ta.done())
|
||||
self.assertTrue(tb.cancelled())
|
||||
self.assertTrue(tc.done())
|
||||
|
||||
def test_release_not_acquired(self):
|
||||
lock = locks.Lock(loop=self.loop)
|
||||
|
||||
self.assertRaises(RuntimeError, lock.release)
|
||||
|
||||
def test_release_no_waiters(self):
|
||||
lock = locks.Lock(loop=self.loop)
|
||||
self.loop.run_until_complete(lock.acquire())
|
||||
self.assertTrue(lock.locked())
|
||||
|
||||
lock.release()
|
||||
self.assertFalse(lock.locked())
|
||||
|
||||
def test_context_manager(self):
|
||||
lock = locks.Lock(loop=self.loop)
|
||||
|
||||
@tasks.coroutine
|
||||
def acquire_lock():
|
||||
return (yield from lock)
|
||||
|
||||
with self.loop.run_until_complete(acquire_lock()):
|
||||
self.assertTrue(lock.locked())
|
||||
|
||||
self.assertFalse(lock.locked())
|
||||
|
||||
def test_context_manager_no_yield(self):
|
||||
lock = locks.Lock(loop=self.loop)
|
||||
|
||||
try:
|
||||
with lock:
|
||||
self.fail('RuntimeError is not raised in with expression')
|
||||
except RuntimeError as err:
|
||||
self.assertEqual(
|
||||
str(err),
|
||||
'"yield from" should be used as context manager expression')
|
||||
|
||||
|
||||
class EventTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = test_utils.TestLoop()
|
||||
events.set_event_loop(None)
|
||||
|
||||
def tearDown(self):
|
||||
self.loop.close()
|
||||
|
||||
def test_ctor_loop(self):
|
||||
loop = unittest.mock.Mock()
|
||||
ev = locks.Event(loop=loop)
|
||||
self.assertIs(ev._loop, loop)
|
||||
|
||||
ev = locks.Event(loop=self.loop)
|
||||
self.assertIs(ev._loop, self.loop)
|
||||
|
||||
def test_ctor_noloop(self):
|
||||
try:
|
||||
events.set_event_loop(self.loop)
|
||||
ev = locks.Event()
|
||||
self.assertIs(ev._loop, self.loop)
|
||||
finally:
|
||||
events.set_event_loop(None)
|
||||
|
||||
def test_repr(self):
|
||||
ev = locks.Event(loop=self.loop)
|
||||
self.assertTrue(repr(ev).endswith('[unset]>'))
|
||||
|
||||
ev.set()
|
||||
self.assertTrue(repr(ev).endswith('[set]>'))
|
||||
|
||||
def test_wait(self):
|
||||
ev = locks.Event(loop=self.loop)
|
||||
self.assertFalse(ev.is_set())
|
||||
|
||||
result = []
|
||||
|
||||
@tasks.coroutine
|
||||
def c1(result):
|
||||
if (yield from ev.wait()):
|
||||
result.append(1)
|
||||
|
||||
@tasks.coroutine
|
||||
def c2(result):
|
||||
if (yield from ev.wait()):
|
||||
result.append(2)
|
||||
|
||||
@tasks.coroutine
|
||||
def c3(result):
|
||||
if (yield from ev.wait()):
|
||||
result.append(3)
|
||||
|
||||
t1 = tasks.Task(c1(result), loop=self.loop)
|
||||
t2 = tasks.Task(c2(result), loop=self.loop)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([], result)
|
||||
|
||||
t3 = tasks.Task(c3(result), loop=self.loop)
|
||||
|
||||
ev.set()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([3, 1, 2], result)
|
||||
|
||||
self.assertTrue(t1.done())
|
||||
self.assertIsNone(t1.result())
|
||||
self.assertTrue(t2.done())
|
||||
self.assertIsNone(t2.result())
|
||||
self.assertTrue(t3.done())
|
||||
self.assertIsNone(t3.result())
|
||||
|
||||
def test_wait_on_set(self):
|
||||
ev = locks.Event(loop=self.loop)
|
||||
ev.set()
|
||||
|
||||
res = self.loop.run_until_complete(ev.wait())
|
||||
self.assertTrue(res)
|
||||
|
||||
def test_wait_cancel(self):
|
||||
ev = locks.Event(loop=self.loop)
|
||||
|
||||
wait = tasks.Task(ev.wait(), loop=self.loop)
|
||||
self.loop.call_soon(wait.cancel)
|
||||
self.assertRaises(
|
||||
futures.CancelledError,
|
||||
self.loop.run_until_complete, wait)
|
||||
self.assertFalse(ev._waiters)
|
||||
|
||||
def test_clear(self):
|
||||
ev = locks.Event(loop=self.loop)
|
||||
self.assertFalse(ev.is_set())
|
||||
|
||||
ev.set()
|
||||
self.assertTrue(ev.is_set())
|
||||
|
||||
ev.clear()
|
||||
self.assertFalse(ev.is_set())
|
||||
|
||||
def test_clear_with_waiters(self):
|
||||
ev = locks.Event(loop=self.loop)
|
||||
result = []
|
||||
|
||||
@tasks.coroutine
|
||||
def c1(result):
|
||||
if (yield from ev.wait()):
|
||||
result.append(1)
|
||||
return True
|
||||
|
||||
t = tasks.Task(c1(result), loop=self.loop)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([], result)
|
||||
|
||||
ev.set()
|
||||
ev.clear()
|
||||
self.assertFalse(ev.is_set())
|
||||
|
||||
ev.set()
|
||||
ev.set()
|
||||
self.assertEqual(1, len(ev._waiters))
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1], result)
|
||||
self.assertEqual(0, len(ev._waiters))
|
||||
|
||||
self.assertTrue(t.done())
|
||||
self.assertTrue(t.result())
|
||||
|
||||
|
||||
class ConditionTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = test_utils.TestLoop()
|
||||
events.set_event_loop(None)
|
||||
|
||||
def tearDown(self):
|
||||
self.loop.close()
|
||||
|
||||
def test_ctor_loop(self):
|
||||
loop = unittest.mock.Mock()
|
||||
cond = locks.Condition(loop=loop)
|
||||
self.assertIs(cond._loop, loop)
|
||||
|
||||
cond = locks.Condition(loop=self.loop)
|
||||
self.assertIs(cond._loop, self.loop)
|
||||
|
||||
def test_ctor_noloop(self):
|
||||
try:
|
||||
events.set_event_loop(self.loop)
|
||||
cond = locks.Condition()
|
||||
self.assertIs(cond._loop, self.loop)
|
||||
finally:
|
||||
events.set_event_loop(None)
|
||||
|
||||
def test_wait(self):
|
||||
cond = locks.Condition(loop=self.loop)
|
||||
result = []
|
||||
|
||||
@tasks.coroutine
|
||||
def c1(result):
|
||||
yield from cond.acquire()
|
||||
if (yield from cond.wait()):
|
||||
result.append(1)
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def c2(result):
|
||||
yield from cond.acquire()
|
||||
if (yield from cond.wait()):
|
||||
result.append(2)
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def c3(result):
|
||||
yield from cond.acquire()
|
||||
if (yield from cond.wait()):
|
||||
result.append(3)
|
||||
return True
|
||||
|
||||
t1 = tasks.Task(c1(result), loop=self.loop)
|
||||
t2 = tasks.Task(c2(result), loop=self.loop)
|
||||
t3 = tasks.Task(c3(result), loop=self.loop)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([], result)
|
||||
self.assertFalse(cond.locked())
|
||||
|
||||
self.assertTrue(self.loop.run_until_complete(cond.acquire()))
|
||||
cond.notify()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([], result)
|
||||
self.assertTrue(cond.locked())
|
||||
|
||||
cond.release()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1], result)
|
||||
self.assertTrue(cond.locked())
|
||||
|
||||
cond.notify(2)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1], result)
|
||||
self.assertTrue(cond.locked())
|
||||
|
||||
cond.release()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1, 2], result)
|
||||
self.assertTrue(cond.locked())
|
||||
|
||||
cond.release()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1, 2, 3], result)
|
||||
self.assertTrue(cond.locked())
|
||||
|
||||
self.assertTrue(t1.done())
|
||||
self.assertTrue(t1.result())
|
||||
self.assertTrue(t2.done())
|
||||
self.assertTrue(t2.result())
|
||||
self.assertTrue(t3.done())
|
||||
self.assertTrue(t3.result())
|
||||
|
||||
def test_wait_cancel(self):
|
||||
cond = locks.Condition(loop=self.loop)
|
||||
self.loop.run_until_complete(cond.acquire())
|
||||
|
||||
wait = tasks.Task(cond.wait(), loop=self.loop)
|
||||
self.loop.call_soon(wait.cancel)
|
||||
self.assertRaises(
|
||||
futures.CancelledError,
|
||||
self.loop.run_until_complete, wait)
|
||||
self.assertFalse(cond._condition_waiters)
|
||||
self.assertTrue(cond.locked())
|
||||
|
||||
def test_wait_unacquired(self):
|
||||
cond = locks.Condition(loop=self.loop)
|
||||
self.assertRaises(
|
||||
RuntimeError,
|
||||
self.loop.run_until_complete, cond.wait())
|
||||
|
||||
def test_wait_for(self):
|
||||
cond = locks.Condition(loop=self.loop)
|
||||
presult = False
|
||||
|
||||
def predicate():
|
||||
return presult
|
||||
|
||||
result = []
|
||||
|
||||
@tasks.coroutine
|
||||
def c1(result):
|
||||
yield from cond.acquire()
|
||||
if (yield from cond.wait_for(predicate)):
|
||||
result.append(1)
|
||||
cond.release()
|
||||
return True
|
||||
|
||||
t = tasks.Task(c1(result), loop=self.loop)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([], result)
|
||||
|
||||
self.loop.run_until_complete(cond.acquire())
|
||||
cond.notify()
|
||||
cond.release()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([], result)
|
||||
|
||||
presult = True
|
||||
self.loop.run_until_complete(cond.acquire())
|
||||
cond.notify()
|
||||
cond.release()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1], result)
|
||||
|
||||
self.assertTrue(t.done())
|
||||
self.assertTrue(t.result())
|
||||
|
||||
def test_wait_for_unacquired(self):
|
||||
cond = locks.Condition(loop=self.loop)
|
||||
|
||||
# predicate can return true immediately
|
||||
res = self.loop.run_until_complete(cond.wait_for(lambda: [1, 2, 3]))
|
||||
self.assertEqual([1, 2, 3], res)
|
||||
|
||||
self.assertRaises(
|
||||
RuntimeError,
|
||||
self.loop.run_until_complete,
|
||||
cond.wait_for(lambda: False))
|
||||
|
||||
def test_notify(self):
|
||||
cond = locks.Condition(loop=self.loop)
|
||||
result = []
|
||||
|
||||
@tasks.coroutine
|
||||
def c1(result):
|
||||
yield from cond.acquire()
|
||||
if (yield from cond.wait()):
|
||||
result.append(1)
|
||||
cond.release()
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def c2(result):
|
||||
yield from cond.acquire()
|
||||
if (yield from cond.wait()):
|
||||
result.append(2)
|
||||
cond.release()
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def c3(result):
|
||||
yield from cond.acquire()
|
||||
if (yield from cond.wait()):
|
||||
result.append(3)
|
||||
cond.release()
|
||||
return True
|
||||
|
||||
t1 = tasks.Task(c1(result), loop=self.loop)
|
||||
t2 = tasks.Task(c2(result), loop=self.loop)
|
||||
t3 = tasks.Task(c3(result), loop=self.loop)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([], result)
|
||||
|
||||
self.loop.run_until_complete(cond.acquire())
|
||||
cond.notify(1)
|
||||
cond.release()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1], result)
|
||||
|
||||
self.loop.run_until_complete(cond.acquire())
|
||||
cond.notify(1)
|
||||
cond.notify(2048)
|
||||
cond.release()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1, 2, 3], result)
|
||||
|
||||
self.assertTrue(t1.done())
|
||||
self.assertTrue(t1.result())
|
||||
self.assertTrue(t2.done())
|
||||
self.assertTrue(t2.result())
|
||||
self.assertTrue(t3.done())
|
||||
self.assertTrue(t3.result())
|
||||
|
||||
def test_notify_all(self):
|
||||
cond = locks.Condition(loop=self.loop)
|
||||
|
||||
result = []
|
||||
|
||||
@tasks.coroutine
|
||||
def c1(result):
|
||||
yield from cond.acquire()
|
||||
if (yield from cond.wait()):
|
||||
result.append(1)
|
||||
cond.release()
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def c2(result):
|
||||
yield from cond.acquire()
|
||||
if (yield from cond.wait()):
|
||||
result.append(2)
|
||||
cond.release()
|
||||
return True
|
||||
|
||||
t1 = tasks.Task(c1(result), loop=self.loop)
|
||||
t2 = tasks.Task(c2(result), loop=self.loop)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([], result)
|
||||
|
||||
self.loop.run_until_complete(cond.acquire())
|
||||
cond.notify_all()
|
||||
cond.release()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1, 2], result)
|
||||
|
||||
self.assertTrue(t1.done())
|
||||
self.assertTrue(t1.result())
|
||||
self.assertTrue(t2.done())
|
||||
self.assertTrue(t2.result())
|
||||
|
||||
def test_notify_unacquired(self):
|
||||
cond = locks.Condition(loop=self.loop)
|
||||
self.assertRaises(RuntimeError, cond.notify)
|
||||
|
||||
def test_notify_all_unacquired(self):
|
||||
cond = locks.Condition(loop=self.loop)
|
||||
self.assertRaises(RuntimeError, cond.notify_all)
|
||||
|
||||
|
||||
class SemaphoreTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = test_utils.TestLoop()
|
||||
events.set_event_loop(None)
|
||||
|
||||
def tearDown(self):
|
||||
self.loop.close()
|
||||
|
||||
def test_ctor_loop(self):
|
||||
loop = unittest.mock.Mock()
|
||||
sem = locks.Semaphore(loop=loop)
|
||||
self.assertIs(sem._loop, loop)
|
||||
|
||||
sem = locks.Semaphore(loop=self.loop)
|
||||
self.assertIs(sem._loop, self.loop)
|
||||
|
||||
def test_ctor_noloop(self):
|
||||
try:
|
||||
events.set_event_loop(self.loop)
|
||||
sem = locks.Semaphore()
|
||||
self.assertIs(sem._loop, self.loop)
|
||||
finally:
|
||||
events.set_event_loop(None)
|
||||
|
||||
def test_repr(self):
|
||||
sem = locks.Semaphore(loop=self.loop)
|
||||
self.assertTrue(repr(sem).endswith('[unlocked,value:1]>'))
|
||||
|
||||
self.loop.run_until_complete(sem.acquire())
|
||||
self.assertTrue(repr(sem).endswith('[locked]>'))
|
||||
|
||||
def test_semaphore(self):
|
||||
sem = locks.Semaphore(loop=self.loop)
|
||||
self.assertEqual(1, sem._value)
|
||||
|
||||
@tasks.coroutine
|
||||
def acquire_lock():
|
||||
return (yield from sem)
|
||||
|
||||
res = self.loop.run_until_complete(acquire_lock())
|
||||
|
||||
self.assertTrue(res)
|
||||
self.assertTrue(sem.locked())
|
||||
self.assertEqual(0, sem._value)
|
||||
|
||||
sem.release()
|
||||
self.assertFalse(sem.locked())
|
||||
self.assertEqual(1, sem._value)
|
||||
|
||||
def test_semaphore_value(self):
|
||||
self.assertRaises(ValueError, locks.Semaphore, -1)
|
||||
|
||||
def test_acquire(self):
|
||||
sem = locks.Semaphore(3, loop=self.loop)
|
||||
result = []
|
||||
|
||||
self.assertTrue(self.loop.run_until_complete(sem.acquire()))
|
||||
self.assertTrue(self.loop.run_until_complete(sem.acquire()))
|
||||
self.assertFalse(sem.locked())
|
||||
|
||||
@tasks.coroutine
|
||||
def c1(result):
|
||||
yield from sem.acquire()
|
||||
result.append(1)
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def c2(result):
|
||||
yield from sem.acquire()
|
||||
result.append(2)
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def c3(result):
|
||||
yield from sem.acquire()
|
||||
result.append(3)
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def c4(result):
|
||||
yield from sem.acquire()
|
||||
result.append(4)
|
||||
return True
|
||||
|
||||
t1 = tasks.Task(c1(result), loop=self.loop)
|
||||
t2 = tasks.Task(c2(result), loop=self.loop)
|
||||
t3 = tasks.Task(c3(result), loop=self.loop)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual([1], result)
|
||||
self.assertTrue(sem.locked())
|
||||
self.assertEqual(2, len(sem._waiters))
|
||||
self.assertEqual(0, sem._value)
|
||||
|
||||
t4 = tasks.Task(c4(result), loop=self.loop)
|
||||
|
||||
sem.release()
|
||||
sem.release()
|
||||
self.assertEqual(2, sem._value)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual(0, sem._value)
|
||||
self.assertEqual([1, 2, 3], result)
|
||||
self.assertTrue(sem.locked())
|
||||
self.assertEqual(1, len(sem._waiters))
|
||||
self.assertEqual(0, sem._value)
|
||||
|
||||
self.assertTrue(t1.done())
|
||||
self.assertTrue(t1.result())
|
||||
self.assertTrue(t2.done())
|
||||
self.assertTrue(t2.result())
|
||||
self.assertTrue(t3.done())
|
||||
self.assertTrue(t3.result())
|
||||
self.assertFalse(t4.done())
|
||||
|
||||
# cleanup locked semaphore
|
||||
sem.release()
|
||||
|
||||
def test_acquire_cancel(self):
|
||||
sem = locks.Semaphore(loop=self.loop)
|
||||
self.loop.run_until_complete(sem.acquire())
|
||||
|
||||
acquire = tasks.Task(sem.acquire(), loop=self.loop)
|
||||
self.loop.call_soon(acquire.cancel)
|
||||
self.assertRaises(
|
||||
futures.CancelledError,
|
||||
self.loop.run_until_complete, acquire)
|
||||
self.assertFalse(sem._waiters)
|
||||
|
||||
def test_release_not_acquired(self):
|
||||
sem = locks.Semaphore(bound=True, loop=self.loop)
|
||||
|
||||
self.assertRaises(ValueError, sem.release)
|
||||
|
||||
def test_release_no_waiters(self):
|
||||
sem = locks.Semaphore(loop=self.loop)
|
||||
self.loop.run_until_complete(sem.acquire())
|
||||
self.assertTrue(sem.locked())
|
||||
|
||||
sem.release()
|
||||
self.assertFalse(sem.locked())
|
||||
|
||||
def test_context_manager(self):
|
||||
sem = locks.Semaphore(2, loop=self.loop)
|
||||
|
||||
@tasks.coroutine
|
||||
def acquire_lock():
|
||||
return (yield from sem)
|
||||
|
||||
with self.loop.run_until_complete(acquire_lock()):
|
||||
self.assertFalse(sem.locked())
|
||||
self.assertEqual(1, sem._value)
|
||||
|
||||
with self.loop.run_until_complete(acquire_lock()):
|
||||
self.assertTrue(sem.locked())
|
||||
|
||||
self.assertEqual(2, sem._value)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
unittest.main()
|
||||
|
|
@ -0,0 +1,480 @@
|
|||
"""Tests for proactor_events.py"""
|
||||
|
||||
import socket
|
||||
import unittest
|
||||
import unittest.mock
|
||||
|
||||
import asyncio
|
||||
from asyncio.proactor_events import BaseProactorEventLoop
|
||||
from asyncio.proactor_events import _ProactorSocketTransport
|
||||
from asyncio.proactor_events import _ProactorWritePipeTransport
|
||||
from asyncio.proactor_events import _ProactorDuplexPipeTransport
|
||||
from asyncio import test_utils
|
||||
|
||||
|
||||
class ProactorSocketTransportTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = test_utils.TestLoop()
|
||||
self.proactor = unittest.mock.Mock()
|
||||
self.loop._proactor = self.proactor
|
||||
self.protocol = test_utils.make_test_protocol(asyncio.Protocol)
|
||||
self.sock = unittest.mock.Mock(socket.socket)
|
||||
|
||||
def test_ctor(self):
|
||||
fut = asyncio.Future(loop=self.loop)
|
||||
tr = _ProactorSocketTransport(
|
||||
self.loop, self.sock, self.protocol, fut)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertIsNone(fut.result())
|
||||
self.protocol.connection_made(tr)
|
||||
self.proactor.recv.assert_called_with(self.sock, 4096)
|
||||
|
||||
def test_loop_reading(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._loop_reading()
|
||||
self.loop._proactor.recv.assert_called_with(self.sock, 4096)
|
||||
self.assertFalse(self.protocol.data_received.called)
|
||||
self.assertFalse(self.protocol.eof_received.called)
|
||||
|
||||
def test_loop_reading_data(self):
|
||||
res = asyncio.Future(loop=self.loop)
|
||||
res.set_result(b'data')
|
||||
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
|
||||
tr._read_fut = res
|
||||
tr._loop_reading(res)
|
||||
self.loop._proactor.recv.assert_called_with(self.sock, 4096)
|
||||
self.protocol.data_received.assert_called_with(b'data')
|
||||
|
||||
def test_loop_reading_no_data(self):
|
||||
res = asyncio.Future(loop=self.loop)
|
||||
res.set_result(b'')
|
||||
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
|
||||
self.assertRaises(AssertionError, tr._loop_reading, res)
|
||||
|
||||
tr.close = unittest.mock.Mock()
|
||||
tr._read_fut = res
|
||||
tr._loop_reading(res)
|
||||
self.assertFalse(self.loop._proactor.recv.called)
|
||||
self.assertTrue(self.protocol.eof_received.called)
|
||||
self.assertTrue(tr.close.called)
|
||||
|
||||
def test_loop_reading_aborted(self):
|
||||
err = self.loop._proactor.recv.side_effect = ConnectionAbortedError()
|
||||
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._fatal_error = unittest.mock.Mock()
|
||||
tr._loop_reading()
|
||||
tr._fatal_error.assert_called_with(err)
|
||||
|
||||
def test_loop_reading_aborted_closing(self):
|
||||
self.loop._proactor.recv.side_effect = ConnectionAbortedError()
|
||||
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._closing = True
|
||||
tr._fatal_error = unittest.mock.Mock()
|
||||
tr._loop_reading()
|
||||
self.assertFalse(tr._fatal_error.called)
|
||||
|
||||
def test_loop_reading_aborted_is_fatal(self):
|
||||
self.loop._proactor.recv.side_effect = ConnectionAbortedError()
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._closing = False
|
||||
tr._fatal_error = unittest.mock.Mock()
|
||||
tr._loop_reading()
|
||||
self.assertTrue(tr._fatal_error.called)
|
||||
|
||||
def test_loop_reading_conn_reset_lost(self):
|
||||
err = self.loop._proactor.recv.side_effect = ConnectionResetError()
|
||||
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._closing = False
|
||||
tr._fatal_error = unittest.mock.Mock()
|
||||
tr._force_close = unittest.mock.Mock()
|
||||
tr._loop_reading()
|
||||
self.assertFalse(tr._fatal_error.called)
|
||||
tr._force_close.assert_called_with(err)
|
||||
|
||||
def test_loop_reading_exception(self):
|
||||
err = self.loop._proactor.recv.side_effect = (OSError())
|
||||
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._fatal_error = unittest.mock.Mock()
|
||||
tr._loop_reading()
|
||||
tr._fatal_error.assert_called_with(err)
|
||||
|
||||
def test_write(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._loop_writing = unittest.mock.Mock()
|
||||
tr.write(b'data')
|
||||
self.assertEqual(tr._buffer, [b'data'])
|
||||
self.assertTrue(tr._loop_writing.called)
|
||||
|
||||
def test_write_no_data(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr.write(b'')
|
||||
self.assertFalse(tr._buffer)
|
||||
|
||||
def test_write_more(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._write_fut = unittest.mock.Mock()
|
||||
tr._loop_writing = unittest.mock.Mock()
|
||||
tr.write(b'data')
|
||||
self.assertEqual(tr._buffer, [b'data'])
|
||||
self.assertFalse(tr._loop_writing.called)
|
||||
|
||||
def test_loop_writing(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._buffer = [b'da', b'ta']
|
||||
tr._loop_writing()
|
||||
self.loop._proactor.send.assert_called_with(self.sock, b'data')
|
||||
self.loop._proactor.send.return_value.add_done_callback.\
|
||||
assert_called_with(tr._loop_writing)
|
||||
|
||||
@unittest.mock.patch('asyncio.proactor_events.asyncio_log')
|
||||
def test_loop_writing_err(self, m_log):
|
||||
err = self.loop._proactor.send.side_effect = OSError()
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._fatal_error = unittest.mock.Mock()
|
||||
tr._buffer = [b'da', b'ta']
|
||||
tr._loop_writing()
|
||||
tr._fatal_error.assert_called_with(err)
|
||||
tr._conn_lost = 1
|
||||
|
||||
tr.write(b'data')
|
||||
tr.write(b'data')
|
||||
tr.write(b'data')
|
||||
tr.write(b'data')
|
||||
tr.write(b'data')
|
||||
self.assertEqual(tr._buffer, [])
|
||||
m_log.warning.assert_called_with('socket.send() raised exception.')
|
||||
|
||||
def test_loop_writing_stop(self):
|
||||
fut = asyncio.Future(loop=self.loop)
|
||||
fut.set_result(b'data')
|
||||
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._write_fut = fut
|
||||
tr._loop_writing(fut)
|
||||
self.assertIsNone(tr._write_fut)
|
||||
|
||||
def test_loop_writing_closing(self):
|
||||
fut = asyncio.Future(loop=self.loop)
|
||||
fut.set_result(1)
|
||||
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._write_fut = fut
|
||||
tr.close()
|
||||
tr._loop_writing(fut)
|
||||
self.assertIsNone(tr._write_fut)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.connection_lost.assert_called_with(None)
|
||||
|
||||
def test_abort(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._force_close = unittest.mock.Mock()
|
||||
tr.abort()
|
||||
tr._force_close.assert_called_with(None)
|
||||
|
||||
def test_close(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr.close()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.connection_lost.assert_called_with(None)
|
||||
self.assertTrue(tr._closing)
|
||||
self.assertEqual(tr._conn_lost, 1)
|
||||
|
||||
self.protocol.connection_lost.reset_mock()
|
||||
tr.close()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertFalse(self.protocol.connection_lost.called)
|
||||
|
||||
def test_close_write_fut(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._write_fut = unittest.mock.Mock()
|
||||
tr.close()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertFalse(self.protocol.connection_lost.called)
|
||||
|
||||
def test_close_buffer(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._buffer = [b'data']
|
||||
tr.close()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertFalse(self.protocol.connection_lost.called)
|
||||
|
||||
@unittest.mock.patch('asyncio.proactor_events.asyncio_log')
|
||||
def test_fatal_error(self, m_logging):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._force_close = unittest.mock.Mock()
|
||||
tr._fatal_error(None)
|
||||
self.assertTrue(tr._force_close.called)
|
||||
self.assertTrue(m_logging.exception.called)
|
||||
|
||||
def test_force_close(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._buffer = [b'data']
|
||||
read_fut = tr._read_fut = unittest.mock.Mock()
|
||||
write_fut = tr._write_fut = unittest.mock.Mock()
|
||||
tr._force_close(None)
|
||||
|
||||
read_fut.cancel.assert_called_with()
|
||||
write_fut.cancel.assert_called_with()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.connection_lost.assert_called_with(None)
|
||||
self.assertEqual([], tr._buffer)
|
||||
self.assertEqual(tr._conn_lost, 1)
|
||||
|
||||
def test_force_close_idempotent(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._closing = True
|
||||
tr._force_close(None)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertFalse(self.protocol.connection_lost.called)
|
||||
|
||||
def test_fatal_error_2(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._buffer = [b'data']
|
||||
tr._force_close(None)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.connection_lost.assert_called_with(None)
|
||||
self.assertEqual([], tr._buffer)
|
||||
|
||||
def test_call_connection_lost(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
tr._call_connection_lost(None)
|
||||
self.assertTrue(self.protocol.connection_lost.called)
|
||||
self.assertTrue(self.sock.close.called)
|
||||
|
||||
def test_write_eof(self):
|
||||
tr = _ProactorSocketTransport(
|
||||
self.loop, self.sock, self.protocol)
|
||||
self.assertTrue(tr.can_write_eof())
|
||||
tr.write_eof()
|
||||
self.sock.shutdown.assert_called_with(socket.SHUT_WR)
|
||||
tr.write_eof()
|
||||
self.assertEqual(self.sock.shutdown.call_count, 1)
|
||||
tr.close()
|
||||
|
||||
def test_write_eof_buffer(self):
|
||||
tr = _ProactorSocketTransport(self.loop, self.sock, self.protocol)
|
||||
f = asyncio.Future(loop=self.loop)
|
||||
tr._loop._proactor.send.return_value = f
|
||||
tr.write(b'data')
|
||||
tr.write_eof()
|
||||
self.assertTrue(tr._eof_written)
|
||||
self.assertFalse(self.sock.shutdown.called)
|
||||
tr._loop._proactor.send.assert_called_with(self.sock, b'data')
|
||||
f.set_result(4)
|
||||
self.loop._run_once()
|
||||
self.sock.shutdown.assert_called_with(socket.SHUT_WR)
|
||||
tr.close()
|
||||
|
||||
def test_write_eof_write_pipe(self):
|
||||
tr = _ProactorWritePipeTransport(
|
||||
self.loop, self.sock, self.protocol)
|
||||
self.assertTrue(tr.can_write_eof())
|
||||
tr.write_eof()
|
||||
self.assertTrue(tr._closing)
|
||||
self.loop._run_once()
|
||||
self.assertTrue(self.sock.close.called)
|
||||
tr.close()
|
||||
|
||||
def test_write_eof_buffer_write_pipe(self):
|
||||
tr = _ProactorWritePipeTransport(self.loop, self.sock, self.protocol)
|
||||
f = asyncio.Future(loop=self.loop)
|
||||
tr._loop._proactor.send.return_value = f
|
||||
tr.write(b'data')
|
||||
tr.write_eof()
|
||||
self.assertTrue(tr._closing)
|
||||
self.assertFalse(self.sock.shutdown.called)
|
||||
tr._loop._proactor.send.assert_called_with(self.sock, b'data')
|
||||
f.set_result(4)
|
||||
self.loop._run_once()
|
||||
self.loop._run_once()
|
||||
self.assertTrue(self.sock.close.called)
|
||||
tr.close()
|
||||
|
||||
def test_write_eof_duplex_pipe(self):
|
||||
tr = _ProactorDuplexPipeTransport(
|
||||
self.loop, self.sock, self.protocol)
|
||||
self.assertFalse(tr.can_write_eof())
|
||||
with self.assertRaises(NotImplementedError):
|
||||
tr.write_eof()
|
||||
tr.close()
|
||||
|
||||
def test_pause_resume(self):
|
||||
tr = _ProactorSocketTransport(
|
||||
self.loop, self.sock, self.protocol)
|
||||
futures = []
|
||||
for msg in [b'data1', b'data2', b'data3', b'data4', b'']:
|
||||
f = asyncio.Future(loop=self.loop)
|
||||
f.set_result(msg)
|
||||
futures.append(f)
|
||||
self.loop._proactor.recv.side_effect = futures
|
||||
self.loop._run_once()
|
||||
self.assertFalse(tr._paused)
|
||||
self.loop._run_once()
|
||||
self.protocol.data_received.assert_called_with(b'data1')
|
||||
self.loop._run_once()
|
||||
self.protocol.data_received.assert_called_with(b'data2')
|
||||
tr.pause()
|
||||
self.assertTrue(tr._paused)
|
||||
for i in range(10):
|
||||
self.loop._run_once()
|
||||
self.protocol.data_received.assert_called_with(b'data2')
|
||||
tr.resume()
|
||||
self.assertFalse(tr._paused)
|
||||
self.loop._run_once()
|
||||
self.protocol.data_received.assert_called_with(b'data3')
|
||||
self.loop._run_once()
|
||||
self.protocol.data_received.assert_called_with(b'data4')
|
||||
tr.close()
|
||||
|
||||
|
||||
class BaseProactorEventLoopTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.sock = unittest.mock.Mock(socket.socket)
|
||||
self.proactor = unittest.mock.Mock()
|
||||
|
||||
self.ssock, self.csock = unittest.mock.Mock(), unittest.mock.Mock()
|
||||
|
||||
class EventLoop(BaseProactorEventLoop):
|
||||
def _socketpair(s):
|
||||
return (self.ssock, self.csock)
|
||||
|
||||
self.loop = EventLoop(self.proactor)
|
||||
|
||||
@unittest.mock.patch.object(BaseProactorEventLoop, 'call_soon')
|
||||
@unittest.mock.patch.object(BaseProactorEventLoop, '_socketpair')
|
||||
def test_ctor(self, socketpair, call_soon):
|
||||
ssock, csock = socketpair.return_value = (
|
||||
unittest.mock.Mock(), unittest.mock.Mock())
|
||||
loop = BaseProactorEventLoop(self.proactor)
|
||||
self.assertIs(loop._ssock, ssock)
|
||||
self.assertIs(loop._csock, csock)
|
||||
self.assertEqual(loop._internal_fds, 1)
|
||||
call_soon.assert_called_with(loop._loop_self_reading)
|
||||
|
||||
def test_close_self_pipe(self):
|
||||
self.loop._close_self_pipe()
|
||||
self.assertEqual(self.loop._internal_fds, 0)
|
||||
self.assertTrue(self.ssock.close.called)
|
||||
self.assertTrue(self.csock.close.called)
|
||||
self.assertIsNone(self.loop._ssock)
|
||||
self.assertIsNone(self.loop._csock)
|
||||
|
||||
def test_close(self):
|
||||
self.loop._close_self_pipe = unittest.mock.Mock()
|
||||
self.loop.close()
|
||||
self.assertTrue(self.loop._close_self_pipe.called)
|
||||
self.assertTrue(self.proactor.close.called)
|
||||
self.assertIsNone(self.loop._proactor)
|
||||
|
||||
self.loop._close_self_pipe.reset_mock()
|
||||
self.loop.close()
|
||||
self.assertFalse(self.loop._close_self_pipe.called)
|
||||
|
||||
def test_sock_recv(self):
|
||||
self.loop.sock_recv(self.sock, 1024)
|
||||
self.proactor.recv.assert_called_with(self.sock, 1024)
|
||||
|
||||
def test_sock_sendall(self):
|
||||
self.loop.sock_sendall(self.sock, b'data')
|
||||
self.proactor.send.assert_called_with(self.sock, b'data')
|
||||
|
||||
def test_sock_connect(self):
|
||||
self.loop.sock_connect(self.sock, 123)
|
||||
self.proactor.connect.assert_called_with(self.sock, 123)
|
||||
|
||||
def test_sock_accept(self):
|
||||
self.loop.sock_accept(self.sock)
|
||||
self.proactor.accept.assert_called_with(self.sock)
|
||||
|
||||
def test_socketpair(self):
|
||||
self.assertRaises(
|
||||
NotImplementedError, BaseProactorEventLoop, self.proactor)
|
||||
|
||||
def test_make_socket_transport(self):
|
||||
tr = self.loop._make_socket_transport(self.sock, unittest.mock.Mock())
|
||||
self.assertIsInstance(tr, _ProactorSocketTransport)
|
||||
|
||||
def test_loop_self_reading(self):
|
||||
self.loop._loop_self_reading()
|
||||
self.proactor.recv.assert_called_with(self.ssock, 4096)
|
||||
self.proactor.recv.return_value.add_done_callback.assert_called_with(
|
||||
self.loop._loop_self_reading)
|
||||
|
||||
def test_loop_self_reading_fut(self):
|
||||
fut = unittest.mock.Mock()
|
||||
self.loop._loop_self_reading(fut)
|
||||
self.assertTrue(fut.result.called)
|
||||
self.proactor.recv.assert_called_with(self.ssock, 4096)
|
||||
self.proactor.recv.return_value.add_done_callback.assert_called_with(
|
||||
self.loop._loop_self_reading)
|
||||
|
||||
def test_loop_self_reading_exception(self):
|
||||
self.loop.close = unittest.mock.Mock()
|
||||
self.proactor.recv.side_effect = OSError()
|
||||
self.assertRaises(OSError, self.loop._loop_self_reading)
|
||||
self.assertTrue(self.loop.close.called)
|
||||
|
||||
def test_write_to_self(self):
|
||||
self.loop._write_to_self()
|
||||
self.csock.send.assert_called_with(b'x')
|
||||
|
||||
def test_process_events(self):
|
||||
self.loop._process_events([])
|
||||
|
||||
@unittest.mock.patch('asyncio.proactor_events.asyncio_log')
|
||||
def test_create_server(self, m_log):
|
||||
pf = unittest.mock.Mock()
|
||||
call_soon = self.loop.call_soon = unittest.mock.Mock()
|
||||
|
||||
self.loop._start_serving(pf, self.sock)
|
||||
self.assertTrue(call_soon.called)
|
||||
|
||||
# callback
|
||||
loop = call_soon.call_args[0][0]
|
||||
loop()
|
||||
self.proactor.accept.assert_called_with(self.sock)
|
||||
|
||||
# conn
|
||||
fut = unittest.mock.Mock()
|
||||
fut.result.return_value = (unittest.mock.Mock(), unittest.mock.Mock())
|
||||
|
||||
make_tr = self.loop._make_socket_transport = unittest.mock.Mock()
|
||||
loop(fut)
|
||||
self.assertTrue(fut.result.called)
|
||||
self.assertTrue(make_tr.called)
|
||||
|
||||
# exception
|
||||
fut.result.side_effect = OSError()
|
||||
loop(fut)
|
||||
self.assertTrue(self.sock.close.called)
|
||||
self.assertTrue(m_log.exception.called)
|
||||
|
||||
def test_create_server_cancel(self):
|
||||
pf = unittest.mock.Mock()
|
||||
call_soon = self.loop.call_soon = unittest.mock.Mock()
|
||||
|
||||
self.loop._start_serving(pf, self.sock)
|
||||
loop = call_soon.call_args[0][0]
|
||||
|
||||
# cancelled
|
||||
fut = asyncio.Future(loop=self.loop)
|
||||
fut.cancel()
|
||||
loop(fut)
|
||||
self.assertTrue(self.sock.close.called)
|
||||
|
||||
def test_stop_serving(self):
|
||||
sock = unittest.mock.Mock()
|
||||
self.loop._stop_serving(sock)
|
||||
self.assertTrue(sock.close.called)
|
||||
self.proactor._stop_serving.assert_called_with(sock)
|
||||
|
|
@ -0,0 +1,470 @@
|
|||
"""Tests for queues.py"""
|
||||
|
||||
import unittest
|
||||
import unittest.mock
|
||||
|
||||
from asyncio import events
|
||||
from asyncio import futures
|
||||
from asyncio import locks
|
||||
from asyncio import queues
|
||||
from asyncio import tasks
|
||||
from asyncio import test_utils
|
||||
|
||||
|
||||
class _QueueTestBase(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = test_utils.TestLoop()
|
||||
events.set_event_loop(None)
|
||||
|
||||
def tearDown(self):
|
||||
self.loop.close()
|
||||
|
||||
|
||||
class QueueBasicTests(_QueueTestBase):
|
||||
|
||||
def _test_repr_or_str(self, fn, expect_id):
|
||||
"""Test Queue's repr or str.
|
||||
|
||||
fn is repr or str. expect_id is True if we expect the Queue's id to
|
||||
appear in fn(Queue()).
|
||||
"""
|
||||
def gen():
|
||||
when = yield
|
||||
self.assertAlmostEqual(0.1, when)
|
||||
when = yield 0.1
|
||||
self.assertAlmostEqual(0.2, when)
|
||||
yield 0.1
|
||||
|
||||
loop = test_utils.TestLoop(gen)
|
||||
self.addCleanup(loop.close)
|
||||
|
||||
q = queues.Queue(loop=loop)
|
||||
self.assertTrue(fn(q).startswith('<Queue'), fn(q))
|
||||
id_is_present = hex(id(q)) in fn(q)
|
||||
self.assertEqual(expect_id, id_is_present)
|
||||
|
||||
@tasks.coroutine
|
||||
def add_getter():
|
||||
q = queues.Queue(loop=loop)
|
||||
# Start a task that waits to get.
|
||||
tasks.Task(q.get(), loop=loop)
|
||||
# Let it start waiting.
|
||||
yield from tasks.sleep(0.1, loop=loop)
|
||||
self.assertTrue('_getters[1]' in fn(q))
|
||||
# resume q.get coroutine to finish generator
|
||||
q.put_nowait(0)
|
||||
|
||||
loop.run_until_complete(add_getter())
|
||||
|
||||
@tasks.coroutine
|
||||
def add_putter():
|
||||
q = queues.Queue(maxsize=1, loop=loop)
|
||||
q.put_nowait(1)
|
||||
# Start a task that waits to put.
|
||||
tasks.Task(q.put(2), loop=loop)
|
||||
# Let it start waiting.
|
||||
yield from tasks.sleep(0.1, loop=loop)
|
||||
self.assertTrue('_putters[1]' in fn(q))
|
||||
# resume q.put coroutine to finish generator
|
||||
q.get_nowait()
|
||||
|
||||
loop.run_until_complete(add_putter())
|
||||
|
||||
q = queues.Queue(loop=loop)
|
||||
q.put_nowait(1)
|
||||
self.assertTrue('_queue=[1]' in fn(q))
|
||||
|
||||
def test_ctor_loop(self):
|
||||
loop = unittest.mock.Mock()
|
||||
q = queues.Queue(loop=loop)
|
||||
self.assertIs(q._loop, loop)
|
||||
|
||||
q = queues.Queue(loop=self.loop)
|
||||
self.assertIs(q._loop, self.loop)
|
||||
|
||||
def test_ctor_noloop(self):
|
||||
try:
|
||||
events.set_event_loop(self.loop)
|
||||
q = queues.Queue()
|
||||
self.assertIs(q._loop, self.loop)
|
||||
finally:
|
||||
events.set_event_loop(None)
|
||||
|
||||
def test_repr(self):
|
||||
self._test_repr_or_str(repr, True)
|
||||
|
||||
def test_str(self):
|
||||
self._test_repr_or_str(str, False)
|
||||
|
||||
def test_empty(self):
|
||||
q = queues.Queue(loop=self.loop)
|
||||
self.assertTrue(q.empty())
|
||||
q.put_nowait(1)
|
||||
self.assertFalse(q.empty())
|
||||
self.assertEqual(1, q.get_nowait())
|
||||
self.assertTrue(q.empty())
|
||||
|
||||
def test_full(self):
|
||||
q = queues.Queue(loop=self.loop)
|
||||
self.assertFalse(q.full())
|
||||
|
||||
q = queues.Queue(maxsize=1, loop=self.loop)
|
||||
q.put_nowait(1)
|
||||
self.assertTrue(q.full())
|
||||
|
||||
def test_order(self):
|
||||
q = queues.Queue(loop=self.loop)
|
||||
for i in [1, 3, 2]:
|
||||
q.put_nowait(i)
|
||||
|
||||
items = [q.get_nowait() for _ in range(3)]
|
||||
self.assertEqual([1, 3, 2], items)
|
||||
|
||||
def test_maxsize(self):
|
||||
|
||||
def gen():
|
||||
when = yield
|
||||
self.assertAlmostEqual(0.01, when)
|
||||
when = yield 0.01
|
||||
self.assertAlmostEqual(0.02, when)
|
||||
yield 0.01
|
||||
|
||||
loop = test_utils.TestLoop(gen)
|
||||
self.addCleanup(loop.close)
|
||||
|
||||
q = queues.Queue(maxsize=2, loop=loop)
|
||||
self.assertEqual(2, q.maxsize)
|
||||
have_been_put = []
|
||||
|
||||
@tasks.coroutine
|
||||
def putter():
|
||||
for i in range(3):
|
||||
yield from q.put(i)
|
||||
have_been_put.append(i)
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def test():
|
||||
t = tasks.Task(putter(), loop=loop)
|
||||
yield from tasks.sleep(0.01, loop=loop)
|
||||
|
||||
# The putter is blocked after putting two items.
|
||||
self.assertEqual([0, 1], have_been_put)
|
||||
self.assertEqual(0, q.get_nowait())
|
||||
|
||||
# Let the putter resume and put last item.
|
||||
yield from tasks.sleep(0.01, loop=loop)
|
||||
self.assertEqual([0, 1, 2], have_been_put)
|
||||
self.assertEqual(1, q.get_nowait())
|
||||
self.assertEqual(2, q.get_nowait())
|
||||
|
||||
self.assertTrue(t.done())
|
||||
self.assertTrue(t.result())
|
||||
|
||||
loop.run_until_complete(test())
|
||||
self.assertAlmostEqual(0.02, loop.time())
|
||||
|
||||
|
||||
class QueueGetTests(_QueueTestBase):
|
||||
|
||||
def test_blocking_get(self):
|
||||
q = queues.Queue(loop=self.loop)
|
||||
q.put_nowait(1)
|
||||
|
||||
@tasks.coroutine
|
||||
def queue_get():
|
||||
return (yield from q.get())
|
||||
|
||||
res = self.loop.run_until_complete(queue_get())
|
||||
self.assertEqual(1, res)
|
||||
|
||||
def test_get_with_putters(self):
|
||||
q = queues.Queue(1, loop=self.loop)
|
||||
q.put_nowait(1)
|
||||
|
||||
waiter = futures.Future(loop=self.loop)
|
||||
q._putters.append((2, waiter))
|
||||
|
||||
res = self.loop.run_until_complete(q.get())
|
||||
self.assertEqual(1, res)
|
||||
self.assertTrue(waiter.done())
|
||||
self.assertIsNone(waiter.result())
|
||||
|
||||
def test_blocking_get_wait(self):
|
||||
|
||||
def gen():
|
||||
when = yield
|
||||
self.assertAlmostEqual(0.01, when)
|
||||
yield 0.01
|
||||
|
||||
loop = test_utils.TestLoop(gen)
|
||||
self.addCleanup(loop.close)
|
||||
|
||||
q = queues.Queue(loop=loop)
|
||||
started = locks.Event(loop=loop)
|
||||
finished = False
|
||||
|
||||
@tasks.coroutine
|
||||
def queue_get():
|
||||
nonlocal finished
|
||||
started.set()
|
||||
res = yield from q.get()
|
||||
finished = True
|
||||
return res
|
||||
|
||||
@tasks.coroutine
|
||||
def queue_put():
|
||||
loop.call_later(0.01, q.put_nowait, 1)
|
||||
queue_get_task = tasks.Task(queue_get(), loop=loop)
|
||||
yield from started.wait()
|
||||
self.assertFalse(finished)
|
||||
res = yield from queue_get_task
|
||||
self.assertTrue(finished)
|
||||
return res
|
||||
|
||||
res = loop.run_until_complete(queue_put())
|
||||
self.assertEqual(1, res)
|
||||
self.assertAlmostEqual(0.01, loop.time())
|
||||
|
||||
def test_nonblocking_get(self):
|
||||
q = queues.Queue(loop=self.loop)
|
||||
q.put_nowait(1)
|
||||
self.assertEqual(1, q.get_nowait())
|
||||
|
||||
def test_nonblocking_get_exception(self):
|
||||
q = queues.Queue(loop=self.loop)
|
||||
self.assertRaises(queues.Empty, q.get_nowait)
|
||||
|
||||
def test_get_cancelled(self):
|
||||
|
||||
def gen():
|
||||
when = yield
|
||||
self.assertAlmostEqual(0.01, when)
|
||||
when = yield 0.01
|
||||
self.assertAlmostEqual(0.061, when)
|
||||
yield 0.05
|
||||
|
||||
loop = test_utils.TestLoop(gen)
|
||||
self.addCleanup(loop.close)
|
||||
|
||||
q = queues.Queue(loop=loop)
|
||||
|
||||
@tasks.coroutine
|
||||
def queue_get():
|
||||
return (yield from tasks.wait_for(q.get(), 0.051, loop=loop))
|
||||
|
||||
@tasks.coroutine
|
||||
def test():
|
||||
get_task = tasks.Task(queue_get(), loop=loop)
|
||||
yield from tasks.sleep(0.01, loop=loop) # let the task start
|
||||
q.put_nowait(1)
|
||||
return (yield from get_task)
|
||||
|
||||
self.assertEqual(1, loop.run_until_complete(test()))
|
||||
self.assertAlmostEqual(0.06, loop.time())
|
||||
|
||||
def test_get_cancelled_race(self):
|
||||
q = queues.Queue(loop=self.loop)
|
||||
|
||||
t1 = tasks.Task(q.get(), loop=self.loop)
|
||||
t2 = tasks.Task(q.get(), loop=self.loop)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
t1.cancel()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertTrue(t1.done())
|
||||
q.put_nowait('a')
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual(t2.result(), 'a')
|
||||
|
||||
def test_get_with_waiting_putters(self):
|
||||
q = queues.Queue(loop=self.loop, maxsize=1)
|
||||
tasks.Task(q.put('a'), loop=self.loop)
|
||||
tasks.Task(q.put('b'), loop=self.loop)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual(self.loop.run_until_complete(q.get()), 'a')
|
||||
self.assertEqual(self.loop.run_until_complete(q.get()), 'b')
|
||||
|
||||
|
||||
class QueuePutTests(_QueueTestBase):
|
||||
|
||||
def test_blocking_put(self):
|
||||
q = queues.Queue(loop=self.loop)
|
||||
|
||||
@tasks.coroutine
|
||||
def queue_put():
|
||||
# No maxsize, won't block.
|
||||
yield from q.put(1)
|
||||
|
||||
self.loop.run_until_complete(queue_put())
|
||||
|
||||
def test_blocking_put_wait(self):
|
||||
|
||||
def gen():
|
||||
when = yield
|
||||
self.assertAlmostEqual(0.01, when)
|
||||
yield 0.01
|
||||
|
||||
loop = test_utils.TestLoop(gen)
|
||||
self.addCleanup(loop.close)
|
||||
|
||||
q = queues.Queue(maxsize=1, loop=loop)
|
||||
started = locks.Event(loop=loop)
|
||||
finished = False
|
||||
|
||||
@tasks.coroutine
|
||||
def queue_put():
|
||||
nonlocal finished
|
||||
started.set()
|
||||
yield from q.put(1)
|
||||
yield from q.put(2)
|
||||
finished = True
|
||||
|
||||
@tasks.coroutine
|
||||
def queue_get():
|
||||
loop.call_later(0.01, q.get_nowait)
|
||||
queue_put_task = tasks.Task(queue_put(), loop=loop)
|
||||
yield from started.wait()
|
||||
self.assertFalse(finished)
|
||||
yield from queue_put_task
|
||||
self.assertTrue(finished)
|
||||
|
||||
loop.run_until_complete(queue_get())
|
||||
self.assertAlmostEqual(0.01, loop.time())
|
||||
|
||||
def test_nonblocking_put(self):
|
||||
q = queues.Queue(loop=self.loop)
|
||||
q.put_nowait(1)
|
||||
self.assertEqual(1, q.get_nowait())
|
||||
|
||||
def test_nonblocking_put_exception(self):
|
||||
q = queues.Queue(maxsize=1, loop=self.loop)
|
||||
q.put_nowait(1)
|
||||
self.assertRaises(queues.Full, q.put_nowait, 2)
|
||||
|
||||
def test_put_cancelled(self):
|
||||
q = queues.Queue(loop=self.loop)
|
||||
|
||||
@tasks.coroutine
|
||||
def queue_put():
|
||||
yield from q.put(1)
|
||||
return True
|
||||
|
||||
@tasks.coroutine
|
||||
def test():
|
||||
return (yield from q.get())
|
||||
|
||||
t = tasks.Task(queue_put(), loop=self.loop)
|
||||
self.assertEqual(1, self.loop.run_until_complete(test()))
|
||||
self.assertTrue(t.done())
|
||||
self.assertTrue(t.result())
|
||||
|
||||
def test_put_cancelled_race(self):
|
||||
q = queues.Queue(loop=self.loop, maxsize=1)
|
||||
|
||||
tasks.Task(q.put('a'), loop=self.loop)
|
||||
tasks.Task(q.put('c'), loop=self.loop)
|
||||
t = tasks.Task(q.put('b'), loop=self.loop)
|
||||
|
||||
test_utils.run_briefly(self.loop)
|
||||
t.cancel()
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertTrue(t.done())
|
||||
self.assertEqual(q.get_nowait(), 'a')
|
||||
self.assertEqual(q.get_nowait(), 'c')
|
||||
|
||||
def test_put_with_waiting_getters(self):
|
||||
q = queues.Queue(loop=self.loop)
|
||||
t = tasks.Task(q.get(), loop=self.loop)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.loop.run_until_complete(q.put('a'))
|
||||
self.assertEqual(self.loop.run_until_complete(t), 'a')
|
||||
|
||||
|
||||
class LifoQueueTests(_QueueTestBase):
|
||||
|
||||
def test_order(self):
|
||||
q = queues.LifoQueue(loop=self.loop)
|
||||
for i in [1, 3, 2]:
|
||||
q.put_nowait(i)
|
||||
|
||||
items = [q.get_nowait() for _ in range(3)]
|
||||
self.assertEqual([2, 3, 1], items)
|
||||
|
||||
|
||||
class PriorityQueueTests(_QueueTestBase):
|
||||
|
||||
def test_order(self):
|
||||
q = queues.PriorityQueue(loop=self.loop)
|
||||
for i in [1, 3, 2]:
|
||||
q.put_nowait(i)
|
||||
|
||||
items = [q.get_nowait() for _ in range(3)]
|
||||
self.assertEqual([1, 2, 3], items)
|
||||
|
||||
|
||||
class JoinableQueueTests(_QueueTestBase):
|
||||
|
||||
def test_task_done_underflow(self):
|
||||
q = queues.JoinableQueue(loop=self.loop)
|
||||
self.assertRaises(ValueError, q.task_done)
|
||||
|
||||
def test_task_done(self):
|
||||
q = queues.JoinableQueue(loop=self.loop)
|
||||
for i in range(100):
|
||||
q.put_nowait(i)
|
||||
|
||||
accumulator = 0
|
||||
|
||||
# Two workers get items from the queue and call task_done after each.
|
||||
# Join the queue and assert all items have been processed.
|
||||
running = True
|
||||
|
||||
@tasks.coroutine
|
||||
def worker():
|
||||
nonlocal accumulator
|
||||
|
||||
while running:
|
||||
item = yield from q.get()
|
||||
accumulator += item
|
||||
q.task_done()
|
||||
|
||||
@tasks.coroutine
|
||||
def test():
|
||||
for _ in range(2):
|
||||
tasks.Task(worker(), loop=self.loop)
|
||||
|
||||
yield from q.join()
|
||||
|
||||
self.loop.run_until_complete(test())
|
||||
self.assertEqual(sum(range(100)), accumulator)
|
||||
|
||||
# close running generators
|
||||
running = False
|
||||
for i in range(2):
|
||||
q.put_nowait(0)
|
||||
|
||||
def test_join_empty_queue(self):
|
||||
q = queues.JoinableQueue(loop=self.loop)
|
||||
|
||||
# Test that a queue join()s successfully, and before anything else
|
||||
# (done twice for insurance).
|
||||
|
||||
@tasks.coroutine
|
||||
def join():
|
||||
yield from q.join()
|
||||
yield from q.join()
|
||||
|
||||
self.loop.run_until_complete(join())
|
||||
|
||||
def test_format(self):
|
||||
q = queues.JoinableQueue(loop=self.loop)
|
||||
self.assertEqual(q._format(), 'maxsize=0')
|
||||
|
||||
q._unfinished_tasks = 2
|
||||
self.assertEqual(q._format(), 'maxsize=0 tasks=2')
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
unittest.main()
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,145 @@
|
|||
"""Tests for selectors.py."""
|
||||
|
||||
import unittest
|
||||
import unittest.mock
|
||||
|
||||
from asyncio import selectors
|
||||
|
||||
|
||||
class FakeSelector(selectors.BaseSelector):
|
||||
"""Trivial non-abstract subclass of BaseSelector."""
|
||||
|
||||
def select(self, timeout=None):
|
||||
raise NotImplementedError
|
||||
|
||||
|
||||
class BaseSelectorTests(unittest.TestCase):
|
||||
|
||||
def test_fileobj_to_fd(self):
|
||||
self.assertEqual(10, selectors._fileobj_to_fd(10))
|
||||
|
||||
f = unittest.mock.Mock()
|
||||
f.fileno.return_value = 10
|
||||
self.assertEqual(10, selectors._fileobj_to_fd(f))
|
||||
|
||||
f.fileno.side_effect = AttributeError
|
||||
self.assertRaises(ValueError, selectors._fileobj_to_fd, f)
|
||||
|
||||
def test_selector_key_repr(self):
|
||||
key = selectors.SelectorKey(10, 10, selectors.EVENT_READ, None)
|
||||
self.assertEqual(
|
||||
"SelectorKey(fileobj=10, fd=10, events=1, data=None)", repr(key))
|
||||
|
||||
def test_register(self):
|
||||
fobj = unittest.mock.Mock()
|
||||
fobj.fileno.return_value = 10
|
||||
|
||||
s = FakeSelector()
|
||||
key = s.register(fobj, selectors.EVENT_READ)
|
||||
self.assertIsInstance(key, selectors.SelectorKey)
|
||||
self.assertEqual(key.fd, 10)
|
||||
self.assertIs(key, s._fd_to_key[10])
|
||||
|
||||
def test_register_unknown_event(self):
|
||||
s = FakeSelector()
|
||||
self.assertRaises(ValueError, s.register, unittest.mock.Mock(), 999999)
|
||||
|
||||
def test_register_already_registered(self):
|
||||
fobj = unittest.mock.Mock()
|
||||
fobj.fileno.return_value = 10
|
||||
|
||||
s = FakeSelector()
|
||||
s.register(fobj, selectors.EVENT_READ)
|
||||
self.assertRaises(KeyError, s.register, fobj, selectors.EVENT_READ)
|
||||
|
||||
def test_unregister(self):
|
||||
fobj = unittest.mock.Mock()
|
||||
fobj.fileno.return_value = 10
|
||||
|
||||
s = FakeSelector()
|
||||
s.register(fobj, selectors.EVENT_READ)
|
||||
s.unregister(fobj)
|
||||
self.assertFalse(s._fd_to_key)
|
||||
|
||||
def test_unregister_unknown(self):
|
||||
fobj = unittest.mock.Mock()
|
||||
fobj.fileno.return_value = 10
|
||||
|
||||
s = FakeSelector()
|
||||
self.assertRaises(KeyError, s.unregister, fobj)
|
||||
|
||||
def test_modify_unknown(self):
|
||||
fobj = unittest.mock.Mock()
|
||||
fobj.fileno.return_value = 10
|
||||
|
||||
s = FakeSelector()
|
||||
self.assertRaises(KeyError, s.modify, fobj, 1)
|
||||
|
||||
def test_modify(self):
|
||||
fobj = unittest.mock.Mock()
|
||||
fobj.fileno.return_value = 10
|
||||
|
||||
s = FakeSelector()
|
||||
key = s.register(fobj, selectors.EVENT_READ)
|
||||
key2 = s.modify(fobj, selectors.EVENT_WRITE)
|
||||
self.assertNotEqual(key.events, key2.events)
|
||||
self.assertEqual(
|
||||
selectors.SelectorKey(fobj, 10, selectors.EVENT_WRITE, None),
|
||||
s.get_key(fobj))
|
||||
|
||||
def test_modify_data(self):
|
||||
fobj = unittest.mock.Mock()
|
||||
fobj.fileno.return_value = 10
|
||||
|
||||
d1 = object()
|
||||
d2 = object()
|
||||
|
||||
s = FakeSelector()
|
||||
key = s.register(fobj, selectors.EVENT_READ, d1)
|
||||
key2 = s.modify(fobj, selectors.EVENT_READ, d2)
|
||||
self.assertEqual(key.events, key2.events)
|
||||
self.assertNotEqual(key.data, key2.data)
|
||||
self.assertEqual(
|
||||
selectors.SelectorKey(fobj, 10, selectors.EVENT_READ, d2),
|
||||
s.get_key(fobj))
|
||||
|
||||
def test_modify_same(self):
|
||||
fobj = unittest.mock.Mock()
|
||||
fobj.fileno.return_value = 10
|
||||
|
||||
data = object()
|
||||
|
||||
s = FakeSelector()
|
||||
key = s.register(fobj, selectors.EVENT_READ, data)
|
||||
key2 = s.modify(fobj, selectors.EVENT_READ, data)
|
||||
self.assertIs(key, key2)
|
||||
|
||||
def test_select(self):
|
||||
s = FakeSelector()
|
||||
self.assertRaises(NotImplementedError, s.select)
|
||||
|
||||
def test_close(self):
|
||||
s = FakeSelector()
|
||||
s.register(1, selectors.EVENT_READ)
|
||||
|
||||
s.close()
|
||||
self.assertFalse(s._fd_to_key)
|
||||
|
||||
def test_context_manager(self):
|
||||
s = FakeSelector()
|
||||
|
||||
with s as sel:
|
||||
sel.register(1, selectors.EVENT_READ)
|
||||
|
||||
self.assertFalse(s._fd_to_key)
|
||||
|
||||
def test_key_from_fd(self):
|
||||
s = FakeSelector()
|
||||
key = s.register(1, selectors.EVENT_READ)
|
||||
|
||||
self.assertIs(key, s._key_from_fd(1))
|
||||
self.assertIsNone(s._key_from_fd(10))
|
||||
|
||||
if hasattr(selectors.DefaultSelector, 'fileno'):
|
||||
def test_fileno(self):
|
||||
self.assertIsInstance(selectors.DefaultSelector().fileno(), int)
|
||||
|
|
@ -0,0 +1,361 @@
|
|||
"""Tests for streams.py."""
|
||||
|
||||
import gc
|
||||
import ssl
|
||||
import unittest
|
||||
import unittest.mock
|
||||
|
||||
from asyncio import events
|
||||
from asyncio import streams
|
||||
from asyncio import tasks
|
||||
from asyncio import test_utils
|
||||
|
||||
|
||||
class StreamReaderTests(unittest.TestCase):
|
||||
|
||||
DATA = b'line1\nline2\nline3\n'
|
||||
|
||||
def setUp(self):
|
||||
self.loop = events.new_event_loop()
|
||||
events.set_event_loop(None)
|
||||
|
||||
def tearDown(self):
|
||||
# just in case if we have transport close callbacks
|
||||
test_utils.run_briefly(self.loop)
|
||||
|
||||
self.loop.close()
|
||||
gc.collect()
|
||||
|
||||
@unittest.mock.patch('asyncio.streams.events')
|
||||
def test_ctor_global_loop(self, m_events):
|
||||
stream = streams.StreamReader()
|
||||
self.assertIs(stream.loop, m_events.get_event_loop.return_value)
|
||||
|
||||
def test_open_connection(self):
|
||||
with test_utils.run_test_server() as httpd:
|
||||
f = streams.open_connection(*httpd.address, loop=self.loop)
|
||||
reader, writer = self.loop.run_until_complete(f)
|
||||
writer.write(b'GET / HTTP/1.0\r\n\r\n')
|
||||
f = reader.readline()
|
||||
data = self.loop.run_until_complete(f)
|
||||
self.assertEqual(data, b'HTTP/1.0 200 OK\r\n')
|
||||
f = reader.read()
|
||||
data = self.loop.run_until_complete(f)
|
||||
self.assertTrue(data.endswith(b'\r\n\r\nTest message'))
|
||||
|
||||
writer.close()
|
||||
|
||||
@unittest.skipIf(ssl is None, 'No ssl module')
|
||||
def test_open_connection_no_loop_ssl(self):
|
||||
with test_utils.run_test_server(use_ssl=True) as httpd:
|
||||
try:
|
||||
events.set_event_loop(self.loop)
|
||||
f = streams.open_connection(*httpd.address,
|
||||
ssl=test_utils.dummy_ssl_context())
|
||||
reader, writer = self.loop.run_until_complete(f)
|
||||
finally:
|
||||
events.set_event_loop(None)
|
||||
writer.write(b'GET / HTTP/1.0\r\n\r\n')
|
||||
f = reader.read()
|
||||
data = self.loop.run_until_complete(f)
|
||||
self.assertTrue(data.endswith(b'\r\n\r\nTest message'))
|
||||
|
||||
writer.close()
|
||||
|
||||
def test_open_connection_error(self):
|
||||
with test_utils.run_test_server() as httpd:
|
||||
f = streams.open_connection(*httpd.address, loop=self.loop)
|
||||
reader, writer = self.loop.run_until_complete(f)
|
||||
writer._protocol.connection_lost(ZeroDivisionError())
|
||||
f = reader.read()
|
||||
with self.assertRaises(ZeroDivisionError):
|
||||
self.loop.run_until_complete(f)
|
||||
|
||||
writer.close()
|
||||
test_utils.run_briefly(self.loop)
|
||||
|
||||
def test_feed_empty_data(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
|
||||
stream.feed_data(b'')
|
||||
self.assertEqual(0, stream.byte_count)
|
||||
|
||||
def test_feed_data_byte_count(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
|
||||
stream.feed_data(self.DATA)
|
||||
self.assertEqual(len(self.DATA), stream.byte_count)
|
||||
|
||||
def test_read_zero(self):
|
||||
# Read zero bytes.
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
stream.feed_data(self.DATA)
|
||||
|
||||
data = self.loop.run_until_complete(stream.read(0))
|
||||
self.assertEqual(b'', data)
|
||||
self.assertEqual(len(self.DATA), stream.byte_count)
|
||||
|
||||
def test_read(self):
|
||||
# Read bytes.
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
read_task = tasks.Task(stream.read(30), loop=self.loop)
|
||||
|
||||
def cb():
|
||||
stream.feed_data(self.DATA)
|
||||
self.loop.call_soon(cb)
|
||||
|
||||
data = self.loop.run_until_complete(read_task)
|
||||
self.assertEqual(self.DATA, data)
|
||||
self.assertFalse(stream.byte_count)
|
||||
|
||||
def test_read_line_breaks(self):
|
||||
# Read bytes without line breaks.
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
stream.feed_data(b'line1')
|
||||
stream.feed_data(b'line2')
|
||||
|
||||
data = self.loop.run_until_complete(stream.read(5))
|
||||
|
||||
self.assertEqual(b'line1', data)
|
||||
self.assertEqual(5, stream.byte_count)
|
||||
|
||||
def test_read_eof(self):
|
||||
# Read bytes, stop at eof.
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
read_task = tasks.Task(stream.read(1024), loop=self.loop)
|
||||
|
||||
def cb():
|
||||
stream.feed_eof()
|
||||
self.loop.call_soon(cb)
|
||||
|
||||
data = self.loop.run_until_complete(read_task)
|
||||
self.assertEqual(b'', data)
|
||||
self.assertFalse(stream.byte_count)
|
||||
|
||||
def test_read_until_eof(self):
|
||||
# Read all bytes until eof.
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
read_task = tasks.Task(stream.read(-1), loop=self.loop)
|
||||
|
||||
def cb():
|
||||
stream.feed_data(b'chunk1\n')
|
||||
stream.feed_data(b'chunk2')
|
||||
stream.feed_eof()
|
||||
self.loop.call_soon(cb)
|
||||
|
||||
data = self.loop.run_until_complete(read_task)
|
||||
|
||||
self.assertEqual(b'chunk1\nchunk2', data)
|
||||
self.assertFalse(stream.byte_count)
|
||||
|
||||
def test_read_exception(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
stream.feed_data(b'line\n')
|
||||
|
||||
data = self.loop.run_until_complete(stream.read(2))
|
||||
self.assertEqual(b'li', data)
|
||||
|
||||
stream.set_exception(ValueError())
|
||||
self.assertRaises(
|
||||
ValueError, self.loop.run_until_complete, stream.read(2))
|
||||
|
||||
def test_readline(self):
|
||||
# Read one line.
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
stream.feed_data(b'chunk1 ')
|
||||
read_task = tasks.Task(stream.readline(), loop=self.loop)
|
||||
|
||||
def cb():
|
||||
stream.feed_data(b'chunk2 ')
|
||||
stream.feed_data(b'chunk3 ')
|
||||
stream.feed_data(b'\n chunk4')
|
||||
self.loop.call_soon(cb)
|
||||
|
||||
line = self.loop.run_until_complete(read_task)
|
||||
self.assertEqual(b'chunk1 chunk2 chunk3 \n', line)
|
||||
self.assertEqual(len(b'\n chunk4')-1, stream.byte_count)
|
||||
|
||||
def test_readline_limit_with_existing_data(self):
|
||||
stream = streams.StreamReader(3, loop=self.loop)
|
||||
stream.feed_data(b'li')
|
||||
stream.feed_data(b'ne1\nline2\n')
|
||||
|
||||
self.assertRaises(
|
||||
ValueError, self.loop.run_until_complete, stream.readline())
|
||||
self.assertEqual([b'line2\n'], list(stream.buffer))
|
||||
|
||||
stream = streams.StreamReader(3, loop=self.loop)
|
||||
stream.feed_data(b'li')
|
||||
stream.feed_data(b'ne1')
|
||||
stream.feed_data(b'li')
|
||||
|
||||
self.assertRaises(
|
||||
ValueError, self.loop.run_until_complete, stream.readline())
|
||||
self.assertEqual([b'li'], list(stream.buffer))
|
||||
self.assertEqual(2, stream.byte_count)
|
||||
|
||||
def test_readline_limit(self):
|
||||
stream = streams.StreamReader(7, loop=self.loop)
|
||||
|
||||
def cb():
|
||||
stream.feed_data(b'chunk1')
|
||||
stream.feed_data(b'chunk2')
|
||||
stream.feed_data(b'chunk3\n')
|
||||
stream.feed_eof()
|
||||
self.loop.call_soon(cb)
|
||||
|
||||
self.assertRaises(
|
||||
ValueError, self.loop.run_until_complete, stream.readline())
|
||||
self.assertEqual([b'chunk3\n'], list(stream.buffer))
|
||||
self.assertEqual(7, stream.byte_count)
|
||||
|
||||
def test_readline_line_byte_count(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
stream.feed_data(self.DATA[:6])
|
||||
stream.feed_data(self.DATA[6:])
|
||||
|
||||
line = self.loop.run_until_complete(stream.readline())
|
||||
|
||||
self.assertEqual(b'line1\n', line)
|
||||
self.assertEqual(len(self.DATA) - len(b'line1\n'), stream.byte_count)
|
||||
|
||||
def test_readline_eof(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
stream.feed_data(b'some data')
|
||||
stream.feed_eof()
|
||||
|
||||
line = self.loop.run_until_complete(stream.readline())
|
||||
self.assertEqual(b'some data', line)
|
||||
|
||||
def test_readline_empty_eof(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
stream.feed_eof()
|
||||
|
||||
line = self.loop.run_until_complete(stream.readline())
|
||||
self.assertEqual(b'', line)
|
||||
|
||||
def test_readline_read_byte_count(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
stream.feed_data(self.DATA)
|
||||
|
||||
self.loop.run_until_complete(stream.readline())
|
||||
|
||||
data = self.loop.run_until_complete(stream.read(7))
|
||||
|
||||
self.assertEqual(b'line2\nl', data)
|
||||
self.assertEqual(
|
||||
len(self.DATA) - len(b'line1\n') - len(b'line2\nl'),
|
||||
stream.byte_count)
|
||||
|
||||
def test_readline_exception(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
stream.feed_data(b'line\n')
|
||||
|
||||
data = self.loop.run_until_complete(stream.readline())
|
||||
self.assertEqual(b'line\n', data)
|
||||
|
||||
stream.set_exception(ValueError())
|
||||
self.assertRaises(
|
||||
ValueError, self.loop.run_until_complete, stream.readline())
|
||||
|
||||
def test_readexactly_zero_or_less(self):
|
||||
# Read exact number of bytes (zero or less).
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
stream.feed_data(self.DATA)
|
||||
|
||||
data = self.loop.run_until_complete(stream.readexactly(0))
|
||||
self.assertEqual(b'', data)
|
||||
self.assertEqual(len(self.DATA), stream.byte_count)
|
||||
|
||||
data = self.loop.run_until_complete(stream.readexactly(-1))
|
||||
self.assertEqual(b'', data)
|
||||
self.assertEqual(len(self.DATA), stream.byte_count)
|
||||
|
||||
def test_readexactly(self):
|
||||
# Read exact number of bytes.
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
|
||||
n = 2 * len(self.DATA)
|
||||
read_task = tasks.Task(stream.readexactly(n), loop=self.loop)
|
||||
|
||||
def cb():
|
||||
stream.feed_data(self.DATA)
|
||||
stream.feed_data(self.DATA)
|
||||
stream.feed_data(self.DATA)
|
||||
self.loop.call_soon(cb)
|
||||
|
||||
data = self.loop.run_until_complete(read_task)
|
||||
self.assertEqual(self.DATA + self.DATA, data)
|
||||
self.assertEqual(len(self.DATA), stream.byte_count)
|
||||
|
||||
def test_readexactly_eof(self):
|
||||
# Read exact number of bytes (eof).
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
n = 2 * len(self.DATA)
|
||||
read_task = tasks.Task(stream.readexactly(n), loop=self.loop)
|
||||
|
||||
def cb():
|
||||
stream.feed_data(self.DATA)
|
||||
stream.feed_eof()
|
||||
self.loop.call_soon(cb)
|
||||
|
||||
data = self.loop.run_until_complete(read_task)
|
||||
self.assertEqual(self.DATA, data)
|
||||
self.assertFalse(stream.byte_count)
|
||||
|
||||
def test_readexactly_exception(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
stream.feed_data(b'line\n')
|
||||
|
||||
data = self.loop.run_until_complete(stream.readexactly(2))
|
||||
self.assertEqual(b'li', data)
|
||||
|
||||
stream.set_exception(ValueError())
|
||||
self.assertRaises(
|
||||
ValueError, self.loop.run_until_complete, stream.readexactly(2))
|
||||
|
||||
def test_exception(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
self.assertIsNone(stream.exception())
|
||||
|
||||
exc = ValueError()
|
||||
stream.set_exception(exc)
|
||||
self.assertIs(stream.exception(), exc)
|
||||
|
||||
def test_exception_waiter(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
|
||||
@tasks.coroutine
|
||||
def set_err():
|
||||
stream.set_exception(ValueError())
|
||||
|
||||
@tasks.coroutine
|
||||
def readline():
|
||||
yield from stream.readline()
|
||||
|
||||
t1 = tasks.Task(stream.readline(), loop=self.loop)
|
||||
t2 = tasks.Task(set_err(), loop=self.loop)
|
||||
|
||||
self.loop.run_until_complete(tasks.wait([t1, t2], loop=self.loop))
|
||||
|
||||
self.assertRaises(ValueError, t1.result)
|
||||
|
||||
def test_exception_cancel(self):
|
||||
stream = streams.StreamReader(loop=self.loop)
|
||||
|
||||
@tasks.coroutine
|
||||
def read_a_line():
|
||||
yield from stream.readline()
|
||||
|
||||
t = tasks.Task(read_a_line(), loop=self.loop)
|
||||
test_utils.run_briefly(self.loop)
|
||||
t.cancel()
|
||||
test_utils.run_briefly(self.loop)
|
||||
# The following line fails if set_exception() isn't careful.
|
||||
stream.set_exception(RuntimeError('message'))
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertIs(stream.waiter, None)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
unittest.main()
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,55 @@
|
|||
"""Tests for transports.py."""
|
||||
|
||||
import unittest
|
||||
import unittest.mock
|
||||
|
||||
from asyncio import transports
|
||||
|
||||
|
||||
class TransportTests(unittest.TestCase):
|
||||
|
||||
def test_ctor_extra_is_none(self):
|
||||
transport = transports.Transport()
|
||||
self.assertEqual(transport._extra, {})
|
||||
|
||||
def test_get_extra_info(self):
|
||||
transport = transports.Transport({'extra': 'info'})
|
||||
self.assertEqual('info', transport.get_extra_info('extra'))
|
||||
self.assertIsNone(transport.get_extra_info('unknown'))
|
||||
|
||||
default = object()
|
||||
self.assertIs(default, transport.get_extra_info('unknown', default))
|
||||
|
||||
def test_writelines(self):
|
||||
transport = transports.Transport()
|
||||
transport.write = unittest.mock.Mock()
|
||||
|
||||
transport.writelines(['line1', 'line2', 'line3'])
|
||||
self.assertEqual(3, transport.write.call_count)
|
||||
|
||||
def test_not_implemented(self):
|
||||
transport = transports.Transport()
|
||||
|
||||
self.assertRaises(NotImplementedError, transport.write, 'data')
|
||||
self.assertRaises(NotImplementedError, transport.write_eof)
|
||||
self.assertRaises(NotImplementedError, transport.can_write_eof)
|
||||
self.assertRaises(NotImplementedError, transport.pause)
|
||||
self.assertRaises(NotImplementedError, transport.resume)
|
||||
self.assertRaises(NotImplementedError, transport.close)
|
||||
self.assertRaises(NotImplementedError, transport.abort)
|
||||
|
||||
def test_dgram_not_implemented(self):
|
||||
transport = transports.DatagramTransport()
|
||||
|
||||
self.assertRaises(NotImplementedError, transport.sendto, 'data')
|
||||
self.assertRaises(NotImplementedError, transport.abort)
|
||||
|
||||
def test_subprocess_transport_not_implemented(self):
|
||||
transport = transports.SubprocessTransport()
|
||||
|
||||
self.assertRaises(NotImplementedError, transport.get_pid)
|
||||
self.assertRaises(NotImplementedError, transport.get_returncode)
|
||||
self.assertRaises(NotImplementedError, transport.get_pipe_transport, 1)
|
||||
self.assertRaises(NotImplementedError, transport.send_signal, 1)
|
||||
self.assertRaises(NotImplementedError, transport.terminate)
|
||||
self.assertRaises(NotImplementedError, transport.kill)
|
||||
|
|
@ -0,0 +1,767 @@
|
|||
"""Tests for unix_events.py."""
|
||||
|
||||
import gc
|
||||
import errno
|
||||
import io
|
||||
import pprint
|
||||
import signal
|
||||
import stat
|
||||
import sys
|
||||
import unittest
|
||||
import unittest.mock
|
||||
|
||||
|
||||
from asyncio import events
|
||||
from asyncio import futures
|
||||
from asyncio import protocols
|
||||
from asyncio import test_utils
|
||||
from asyncio import unix_events
|
||||
|
||||
|
||||
@unittest.skipUnless(signal, 'Signals are not supported')
|
||||
class SelectorEventLoopTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = unix_events.SelectorEventLoop()
|
||||
events.set_event_loop(None)
|
||||
|
||||
def tearDown(self):
|
||||
self.loop.close()
|
||||
|
||||
def test_check_signal(self):
|
||||
self.assertRaises(
|
||||
TypeError, self.loop._check_signal, '1')
|
||||
self.assertRaises(
|
||||
ValueError, self.loop._check_signal, signal.NSIG + 1)
|
||||
|
||||
def test_handle_signal_no_handler(self):
|
||||
self.loop._handle_signal(signal.NSIG + 1, ())
|
||||
|
||||
def test_handle_signal_cancelled_handler(self):
|
||||
h = events.Handle(unittest.mock.Mock(), ())
|
||||
h.cancel()
|
||||
self.loop._signal_handlers[signal.NSIG + 1] = h
|
||||
self.loop.remove_signal_handler = unittest.mock.Mock()
|
||||
self.loop._handle_signal(signal.NSIG + 1, ())
|
||||
self.loop.remove_signal_handler.assert_called_with(signal.NSIG + 1)
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.signal')
|
||||
def test_add_signal_handler_setup_error(self, m_signal):
|
||||
m_signal.NSIG = signal.NSIG
|
||||
m_signal.set_wakeup_fd.side_effect = ValueError
|
||||
|
||||
self.assertRaises(
|
||||
RuntimeError,
|
||||
self.loop.add_signal_handler,
|
||||
signal.SIGINT, lambda: True)
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.signal')
|
||||
def test_add_signal_handler(self, m_signal):
|
||||
m_signal.NSIG = signal.NSIG
|
||||
|
||||
cb = lambda: True
|
||||
self.loop.add_signal_handler(signal.SIGHUP, cb)
|
||||
h = self.loop._signal_handlers.get(signal.SIGHUP)
|
||||
self.assertTrue(isinstance(h, events.Handle))
|
||||
self.assertEqual(h._callback, cb)
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.signal')
|
||||
def test_add_signal_handler_install_error(self, m_signal):
|
||||
m_signal.NSIG = signal.NSIG
|
||||
|
||||
def set_wakeup_fd(fd):
|
||||
if fd == -1:
|
||||
raise ValueError()
|
||||
m_signal.set_wakeup_fd = set_wakeup_fd
|
||||
|
||||
class Err(OSError):
|
||||
errno = errno.EFAULT
|
||||
m_signal.signal.side_effect = Err
|
||||
|
||||
self.assertRaises(
|
||||
Err,
|
||||
self.loop.add_signal_handler,
|
||||
signal.SIGINT, lambda: True)
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.signal')
|
||||
@unittest.mock.patch('asyncio.unix_events.asyncio_log')
|
||||
def test_add_signal_handler_install_error2(self, m_logging, m_signal):
|
||||
m_signal.NSIG = signal.NSIG
|
||||
|
||||
class Err(OSError):
|
||||
errno = errno.EINVAL
|
||||
m_signal.signal.side_effect = Err
|
||||
|
||||
self.loop._signal_handlers[signal.SIGHUP] = lambda: True
|
||||
self.assertRaises(
|
||||
RuntimeError,
|
||||
self.loop.add_signal_handler,
|
||||
signal.SIGINT, lambda: True)
|
||||
self.assertFalse(m_logging.info.called)
|
||||
self.assertEqual(1, m_signal.set_wakeup_fd.call_count)
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.signal')
|
||||
@unittest.mock.patch('asyncio.unix_events.asyncio_log')
|
||||
def test_add_signal_handler_install_error3(self, m_logging, m_signal):
|
||||
class Err(OSError):
|
||||
errno = errno.EINVAL
|
||||
m_signal.signal.side_effect = Err
|
||||
m_signal.NSIG = signal.NSIG
|
||||
|
||||
self.assertRaises(
|
||||
RuntimeError,
|
||||
self.loop.add_signal_handler,
|
||||
signal.SIGINT, lambda: True)
|
||||
self.assertFalse(m_logging.info.called)
|
||||
self.assertEqual(2, m_signal.set_wakeup_fd.call_count)
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.signal')
|
||||
def test_remove_signal_handler(self, m_signal):
|
||||
m_signal.NSIG = signal.NSIG
|
||||
|
||||
self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
|
||||
|
||||
self.assertTrue(
|
||||
self.loop.remove_signal_handler(signal.SIGHUP))
|
||||
self.assertTrue(m_signal.set_wakeup_fd.called)
|
||||
self.assertTrue(m_signal.signal.called)
|
||||
self.assertEqual(
|
||||
(signal.SIGHUP, m_signal.SIG_DFL), m_signal.signal.call_args[0])
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.signal')
|
||||
def test_remove_signal_handler_2(self, m_signal):
|
||||
m_signal.NSIG = signal.NSIG
|
||||
m_signal.SIGINT = signal.SIGINT
|
||||
|
||||
self.loop.add_signal_handler(signal.SIGINT, lambda: True)
|
||||
self.loop._signal_handlers[signal.SIGHUP] = object()
|
||||
m_signal.set_wakeup_fd.reset_mock()
|
||||
|
||||
self.assertTrue(
|
||||
self.loop.remove_signal_handler(signal.SIGINT))
|
||||
self.assertFalse(m_signal.set_wakeup_fd.called)
|
||||
self.assertTrue(m_signal.signal.called)
|
||||
self.assertEqual(
|
||||
(signal.SIGINT, m_signal.default_int_handler),
|
||||
m_signal.signal.call_args[0])
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.signal')
|
||||
@unittest.mock.patch('asyncio.unix_events.asyncio_log')
|
||||
def test_remove_signal_handler_cleanup_error(self, m_logging, m_signal):
|
||||
m_signal.NSIG = signal.NSIG
|
||||
self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
|
||||
|
||||
m_signal.set_wakeup_fd.side_effect = ValueError
|
||||
|
||||
self.loop.remove_signal_handler(signal.SIGHUP)
|
||||
self.assertTrue(m_logging.info)
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.signal')
|
||||
def test_remove_signal_handler_error(self, m_signal):
|
||||
m_signal.NSIG = signal.NSIG
|
||||
self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
|
||||
|
||||
m_signal.signal.side_effect = OSError
|
||||
|
||||
self.assertRaises(
|
||||
OSError, self.loop.remove_signal_handler, signal.SIGHUP)
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.signal')
|
||||
def test_remove_signal_handler_error2(self, m_signal):
|
||||
m_signal.NSIG = signal.NSIG
|
||||
self.loop.add_signal_handler(signal.SIGHUP, lambda: True)
|
||||
|
||||
class Err(OSError):
|
||||
errno = errno.EINVAL
|
||||
m_signal.signal.side_effect = Err
|
||||
|
||||
self.assertRaises(
|
||||
RuntimeError, self.loop.remove_signal_handler, signal.SIGHUP)
|
||||
|
||||
@unittest.mock.patch('os.WTERMSIG')
|
||||
@unittest.mock.patch('os.WEXITSTATUS')
|
||||
@unittest.mock.patch('os.WIFSIGNALED')
|
||||
@unittest.mock.patch('os.WIFEXITED')
|
||||
@unittest.mock.patch('os.waitpid')
|
||||
def test__sig_chld(self, m_waitpid, m_WIFEXITED, m_WIFSIGNALED,
|
||||
m_WEXITSTATUS, m_WTERMSIG):
|
||||
m_waitpid.side_effect = [(7, object()), ChildProcessError]
|
||||
m_WIFEXITED.return_value = True
|
||||
m_WIFSIGNALED.return_value = False
|
||||
m_WEXITSTATUS.return_value = 3
|
||||
transp = unittest.mock.Mock()
|
||||
self.loop._subprocesses[7] = transp
|
||||
|
||||
self.loop._sig_chld()
|
||||
transp._process_exited.assert_called_with(3)
|
||||
self.assertFalse(m_WTERMSIG.called)
|
||||
|
||||
@unittest.mock.patch('os.WTERMSIG')
|
||||
@unittest.mock.patch('os.WEXITSTATUS')
|
||||
@unittest.mock.patch('os.WIFSIGNALED')
|
||||
@unittest.mock.patch('os.WIFEXITED')
|
||||
@unittest.mock.patch('os.waitpid')
|
||||
def test__sig_chld_signal(self, m_waitpid, m_WIFEXITED, m_WIFSIGNALED,
|
||||
m_WEXITSTATUS, m_WTERMSIG):
|
||||
m_waitpid.side_effect = [(7, object()), ChildProcessError]
|
||||
m_WIFEXITED.return_value = False
|
||||
m_WIFSIGNALED.return_value = True
|
||||
m_WTERMSIG.return_value = 1
|
||||
transp = unittest.mock.Mock()
|
||||
self.loop._subprocesses[7] = transp
|
||||
|
||||
self.loop._sig_chld()
|
||||
transp._process_exited.assert_called_with(-1)
|
||||
self.assertFalse(m_WEXITSTATUS.called)
|
||||
|
||||
@unittest.mock.patch('os.WTERMSIG')
|
||||
@unittest.mock.patch('os.WEXITSTATUS')
|
||||
@unittest.mock.patch('os.WIFSIGNALED')
|
||||
@unittest.mock.patch('os.WIFEXITED')
|
||||
@unittest.mock.patch('os.waitpid')
|
||||
def test__sig_chld_zero_pid(self, m_waitpid, m_WIFEXITED, m_WIFSIGNALED,
|
||||
m_WEXITSTATUS, m_WTERMSIG):
|
||||
m_waitpid.side_effect = [(0, object()), ChildProcessError]
|
||||
transp = unittest.mock.Mock()
|
||||
self.loop._subprocesses[7] = transp
|
||||
|
||||
self.loop._sig_chld()
|
||||
self.assertFalse(transp._process_exited.called)
|
||||
self.assertFalse(m_WIFSIGNALED.called)
|
||||
self.assertFalse(m_WIFEXITED.called)
|
||||
self.assertFalse(m_WTERMSIG.called)
|
||||
self.assertFalse(m_WEXITSTATUS.called)
|
||||
|
||||
@unittest.mock.patch('os.WTERMSIG')
|
||||
@unittest.mock.patch('os.WEXITSTATUS')
|
||||
@unittest.mock.patch('os.WIFSIGNALED')
|
||||
@unittest.mock.patch('os.WIFEXITED')
|
||||
@unittest.mock.patch('os.waitpid')
|
||||
def test__sig_chld_not_registered_subprocess(self, m_waitpid,
|
||||
m_WIFEXITED, m_WIFSIGNALED,
|
||||
m_WEXITSTATUS, m_WTERMSIG):
|
||||
m_waitpid.side_effect = [(7, object()), ChildProcessError]
|
||||
m_WIFEXITED.return_value = True
|
||||
m_WIFSIGNALED.return_value = False
|
||||
m_WEXITSTATUS.return_value = 3
|
||||
|
||||
self.loop._sig_chld()
|
||||
self.assertFalse(m_WTERMSIG.called)
|
||||
|
||||
@unittest.mock.patch('os.WTERMSIG')
|
||||
@unittest.mock.patch('os.WEXITSTATUS')
|
||||
@unittest.mock.patch('os.WIFSIGNALED')
|
||||
@unittest.mock.patch('os.WIFEXITED')
|
||||
@unittest.mock.patch('os.waitpid')
|
||||
def test__sig_chld_unknown_status(self, m_waitpid,
|
||||
m_WIFEXITED, m_WIFSIGNALED,
|
||||
m_WEXITSTATUS, m_WTERMSIG):
|
||||
m_waitpid.side_effect = [(7, object()), ChildProcessError]
|
||||
m_WIFEXITED.return_value = False
|
||||
m_WIFSIGNALED.return_value = False
|
||||
transp = unittest.mock.Mock()
|
||||
self.loop._subprocesses[7] = transp
|
||||
|
||||
self.loop._sig_chld()
|
||||
self.assertFalse(transp._process_exited.called)
|
||||
self.assertFalse(m_WEXITSTATUS.called)
|
||||
self.assertFalse(m_WTERMSIG.called)
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.asyncio_log')
|
||||
@unittest.mock.patch('os.WTERMSIG')
|
||||
@unittest.mock.patch('os.WEXITSTATUS')
|
||||
@unittest.mock.patch('os.WIFSIGNALED')
|
||||
@unittest.mock.patch('os.WIFEXITED')
|
||||
@unittest.mock.patch('os.waitpid')
|
||||
def test__sig_chld_unknown_status_in_handler(self, m_waitpid,
|
||||
m_WIFEXITED, m_WIFSIGNALED,
|
||||
m_WEXITSTATUS, m_WTERMSIG,
|
||||
m_log):
|
||||
m_waitpid.side_effect = Exception
|
||||
transp = unittest.mock.Mock()
|
||||
self.loop._subprocesses[7] = transp
|
||||
|
||||
self.loop._sig_chld()
|
||||
self.assertFalse(transp._process_exited.called)
|
||||
self.assertFalse(m_WIFSIGNALED.called)
|
||||
self.assertFalse(m_WIFEXITED.called)
|
||||
self.assertFalse(m_WTERMSIG.called)
|
||||
self.assertFalse(m_WEXITSTATUS.called)
|
||||
m_log.exception.assert_called_with(
|
||||
'Unknown exception in SIGCHLD handler')
|
||||
|
||||
@unittest.mock.patch('os.waitpid')
|
||||
def test__sig_chld_process_error(self, m_waitpid):
|
||||
m_waitpid.side_effect = ChildProcessError
|
||||
self.loop._sig_chld()
|
||||
self.assertTrue(m_waitpid.called)
|
||||
|
||||
|
||||
class UnixReadPipeTransportTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = test_utils.TestLoop()
|
||||
self.protocol = test_utils.make_test_protocol(protocols.Protocol)
|
||||
self.pipe = unittest.mock.Mock(spec_set=io.RawIOBase)
|
||||
self.pipe.fileno.return_value = 5
|
||||
|
||||
fcntl_patcher = unittest.mock.patch('fcntl.fcntl')
|
||||
fcntl_patcher.start()
|
||||
self.addCleanup(fcntl_patcher.stop)
|
||||
|
||||
def test_ctor(self):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
self.loop.assert_reader(5, tr._read_ready)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.connection_made.assert_called_with(tr)
|
||||
|
||||
def test_ctor_with_waiter(self):
|
||||
fut = futures.Future(loop=self.loop)
|
||||
unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol, fut)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertIsNone(fut.result())
|
||||
|
||||
@unittest.mock.patch('os.read')
|
||||
def test__read_ready(self, m_read):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
m_read.return_value = b'data'
|
||||
tr._read_ready()
|
||||
|
||||
m_read.assert_called_with(5, tr.max_size)
|
||||
self.protocol.data_received.assert_called_with(b'data')
|
||||
|
||||
@unittest.mock.patch('os.read')
|
||||
def test__read_ready_eof(self, m_read):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
m_read.return_value = b''
|
||||
tr._read_ready()
|
||||
|
||||
m_read.assert_called_with(5, tr.max_size)
|
||||
self.assertFalse(self.loop.readers)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.eof_received.assert_called_with()
|
||||
self.protocol.connection_lost.assert_called_with(None)
|
||||
|
||||
@unittest.mock.patch('os.read')
|
||||
def test__read_ready_blocked(self, m_read):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
m_read.side_effect = BlockingIOError
|
||||
tr._read_ready()
|
||||
|
||||
m_read.assert_called_with(5, tr.max_size)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertFalse(self.protocol.data_received.called)
|
||||
|
||||
@unittest.mock.patch('asyncio.log.asyncio_log.exception')
|
||||
@unittest.mock.patch('os.read')
|
||||
def test__read_ready_error(self, m_read, m_logexc):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
err = OSError()
|
||||
m_read.side_effect = err
|
||||
tr._close = unittest.mock.Mock()
|
||||
tr._read_ready()
|
||||
|
||||
m_read.assert_called_with(5, tr.max_size)
|
||||
tr._close.assert_called_with(err)
|
||||
m_logexc.assert_called_with('Fatal error for %s', tr)
|
||||
|
||||
@unittest.mock.patch('os.read')
|
||||
def test_pause(self, m_read):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
m = unittest.mock.Mock()
|
||||
self.loop.add_reader(5, m)
|
||||
tr.pause()
|
||||
self.assertFalse(self.loop.readers)
|
||||
|
||||
@unittest.mock.patch('os.read')
|
||||
def test_resume(self, m_read):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
tr.resume()
|
||||
self.loop.assert_reader(5, tr._read_ready)
|
||||
|
||||
@unittest.mock.patch('os.read')
|
||||
def test_close(self, m_read):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
tr._close = unittest.mock.Mock()
|
||||
tr.close()
|
||||
tr._close.assert_called_with(None)
|
||||
|
||||
@unittest.mock.patch('os.read')
|
||||
def test_close_already_closing(self, m_read):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
tr._closing = True
|
||||
tr._close = unittest.mock.Mock()
|
||||
tr.close()
|
||||
self.assertFalse(tr._close.called)
|
||||
|
||||
@unittest.mock.patch('os.read')
|
||||
def test__close(self, m_read):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
err = object()
|
||||
tr._close(err)
|
||||
self.assertTrue(tr._closing)
|
||||
self.assertFalse(self.loop.readers)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.connection_lost.assert_called_with(err)
|
||||
|
||||
def test__call_connection_lost(self):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
err = None
|
||||
tr._call_connection_lost(err)
|
||||
self.protocol.connection_lost.assert_called_with(err)
|
||||
self.pipe.close.assert_called_with()
|
||||
|
||||
self.assertIsNone(tr._protocol)
|
||||
self.assertEqual(2, sys.getrefcount(self.protocol),
|
||||
pprint.pformat(gc.get_referrers(self.protocol)))
|
||||
self.assertIsNone(tr._loop)
|
||||
self.assertEqual(2, sys.getrefcount(self.loop),
|
||||
pprint.pformat(gc.get_referrers(self.loop)))
|
||||
|
||||
def test__call_connection_lost_with_err(self):
|
||||
tr = unix_events._UnixReadPipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
err = OSError()
|
||||
tr._call_connection_lost(err)
|
||||
self.protocol.connection_lost.assert_called_with(err)
|
||||
self.pipe.close.assert_called_with()
|
||||
|
||||
self.assertIsNone(tr._protocol)
|
||||
self.assertEqual(2, sys.getrefcount(self.protocol),
|
||||
pprint.pformat(gc.get_referrers(self.protocol)))
|
||||
self.assertIsNone(tr._loop)
|
||||
self.assertEqual(2, sys.getrefcount(self.loop),
|
||||
pprint.pformat(gc.get_referrers(self.loop)))
|
||||
|
||||
|
||||
class UnixWritePipeTransportTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = test_utils.TestLoop()
|
||||
self.protocol = test_utils.make_test_protocol(protocols.BaseProtocol)
|
||||
self.pipe = unittest.mock.Mock(spec_set=io.RawIOBase)
|
||||
self.pipe.fileno.return_value = 5
|
||||
|
||||
fcntl_patcher = unittest.mock.patch('fcntl.fcntl')
|
||||
fcntl_patcher.start()
|
||||
self.addCleanup(fcntl_patcher.stop)
|
||||
|
||||
fstat_patcher = unittest.mock.patch('os.fstat')
|
||||
m_fstat = fstat_patcher.start()
|
||||
st = unittest.mock.Mock()
|
||||
st.st_mode = stat.S_IFIFO
|
||||
m_fstat.return_value = st
|
||||
self.addCleanup(fstat_patcher.stop)
|
||||
|
||||
def test_ctor(self):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
self.loop.assert_reader(5, tr._read_ready)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.connection_made.assert_called_with(tr)
|
||||
|
||||
def test_ctor_with_waiter(self):
|
||||
fut = futures.Future(loop=self.loop)
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol, fut)
|
||||
self.loop.assert_reader(5, tr._read_ready)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.assertEqual(None, fut.result())
|
||||
|
||||
def test_can_write_eof(self):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
self.assertTrue(tr.can_write_eof())
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test_write(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
m_write.return_value = 4
|
||||
tr.write(b'data')
|
||||
m_write.assert_called_with(5, b'data')
|
||||
self.assertFalse(self.loop.writers)
|
||||
self.assertEqual([], tr._buffer)
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test_write_no_data(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
tr.write(b'')
|
||||
self.assertFalse(m_write.called)
|
||||
self.assertFalse(self.loop.writers)
|
||||
self.assertEqual([], tr._buffer)
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test_write_partial(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
m_write.return_value = 2
|
||||
tr.write(b'data')
|
||||
m_write.assert_called_with(5, b'data')
|
||||
self.loop.assert_writer(5, tr._write_ready)
|
||||
self.assertEqual([b'ta'], tr._buffer)
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test_write_buffer(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
self.loop.add_writer(5, tr._write_ready)
|
||||
tr._buffer = [b'previous']
|
||||
tr.write(b'data')
|
||||
self.assertFalse(m_write.called)
|
||||
self.loop.assert_writer(5, tr._write_ready)
|
||||
self.assertEqual([b'previous', b'data'], tr._buffer)
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test_write_again(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
m_write.side_effect = BlockingIOError()
|
||||
tr.write(b'data')
|
||||
m_write.assert_called_with(5, b'data')
|
||||
self.loop.assert_writer(5, tr._write_ready)
|
||||
self.assertEqual([b'data'], tr._buffer)
|
||||
|
||||
@unittest.mock.patch('asyncio.unix_events.asyncio_log')
|
||||
@unittest.mock.patch('os.write')
|
||||
def test_write_err(self, m_write, m_log):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
err = OSError()
|
||||
m_write.side_effect = err
|
||||
tr._fatal_error = unittest.mock.Mock()
|
||||
tr.write(b'data')
|
||||
m_write.assert_called_with(5, b'data')
|
||||
self.assertFalse(self.loop.writers)
|
||||
self.assertEqual([], tr._buffer)
|
||||
tr._fatal_error.assert_called_with(err)
|
||||
self.assertEqual(1, tr._conn_lost)
|
||||
|
||||
tr.write(b'data')
|
||||
self.assertEqual(2, tr._conn_lost)
|
||||
tr.write(b'data')
|
||||
tr.write(b'data')
|
||||
tr.write(b'data')
|
||||
tr.write(b'data')
|
||||
# This is a bit overspecified. :-(
|
||||
m_log.warning.assert_called_with(
|
||||
'pipe closed by peer or os.write(pipe, data) raised exception.')
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test_write_close(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
tr._read_ready() # pipe was closed by peer
|
||||
|
||||
tr.write(b'data')
|
||||
self.assertEqual(tr._conn_lost, 1)
|
||||
tr.write(b'data')
|
||||
self.assertEqual(tr._conn_lost, 2)
|
||||
|
||||
def test__read_ready(self):
|
||||
tr = unix_events._UnixWritePipeTransport(self.loop, self.pipe,
|
||||
self.protocol)
|
||||
tr._read_ready()
|
||||
self.assertFalse(self.loop.readers)
|
||||
self.assertFalse(self.loop.writers)
|
||||
self.assertTrue(tr._closing)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.connection_lost.assert_called_with(None)
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test__write_ready(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
self.loop.add_writer(5, tr._write_ready)
|
||||
tr._buffer = [b'da', b'ta']
|
||||
m_write.return_value = 4
|
||||
tr._write_ready()
|
||||
m_write.assert_called_with(5, b'data')
|
||||
self.assertFalse(self.loop.writers)
|
||||
self.assertEqual([], tr._buffer)
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test__write_ready_partial(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
self.loop.add_writer(5, tr._write_ready)
|
||||
tr._buffer = [b'da', b'ta']
|
||||
m_write.return_value = 3
|
||||
tr._write_ready()
|
||||
m_write.assert_called_with(5, b'data')
|
||||
self.loop.assert_writer(5, tr._write_ready)
|
||||
self.assertEqual([b'a'], tr._buffer)
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test__write_ready_again(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
self.loop.add_writer(5, tr._write_ready)
|
||||
tr._buffer = [b'da', b'ta']
|
||||
m_write.side_effect = BlockingIOError()
|
||||
tr._write_ready()
|
||||
m_write.assert_called_with(5, b'data')
|
||||
self.loop.assert_writer(5, tr._write_ready)
|
||||
self.assertEqual([b'data'], tr._buffer)
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test__write_ready_empty(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
self.loop.add_writer(5, tr._write_ready)
|
||||
tr._buffer = [b'da', b'ta']
|
||||
m_write.return_value = 0
|
||||
tr._write_ready()
|
||||
m_write.assert_called_with(5, b'data')
|
||||
self.loop.assert_writer(5, tr._write_ready)
|
||||
self.assertEqual([b'data'], tr._buffer)
|
||||
|
||||
@unittest.mock.patch('asyncio.log.asyncio_log.exception')
|
||||
@unittest.mock.patch('os.write')
|
||||
def test__write_ready_err(self, m_write, m_logexc):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
self.loop.add_writer(5, tr._write_ready)
|
||||
tr._buffer = [b'da', b'ta']
|
||||
m_write.side_effect = err = OSError()
|
||||
tr._write_ready()
|
||||
m_write.assert_called_with(5, b'data')
|
||||
self.assertFalse(self.loop.writers)
|
||||
self.assertFalse(self.loop.readers)
|
||||
self.assertEqual([], tr._buffer)
|
||||
self.assertTrue(tr._closing)
|
||||
m_logexc.assert_called_with('Fatal error for %s', tr)
|
||||
self.assertEqual(1, tr._conn_lost)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.connection_lost.assert_called_with(err)
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test__write_ready_closing(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
self.loop.add_writer(5, tr._write_ready)
|
||||
tr._closing = True
|
||||
tr._buffer = [b'da', b'ta']
|
||||
m_write.return_value = 4
|
||||
tr._write_ready()
|
||||
m_write.assert_called_with(5, b'data')
|
||||
self.assertFalse(self.loop.writers)
|
||||
self.assertFalse(self.loop.readers)
|
||||
self.assertEqual([], tr._buffer)
|
||||
self.protocol.connection_lost.assert_called_with(None)
|
||||
self.pipe.close.assert_called_with()
|
||||
|
||||
@unittest.mock.patch('os.write')
|
||||
def test_abort(self, m_write):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
self.loop.add_writer(5, tr._write_ready)
|
||||
self.loop.add_reader(5, tr._read_ready)
|
||||
tr._buffer = [b'da', b'ta']
|
||||
tr.abort()
|
||||
self.assertFalse(m_write.called)
|
||||
self.assertFalse(self.loop.readers)
|
||||
self.assertFalse(self.loop.writers)
|
||||
self.assertEqual([], tr._buffer)
|
||||
self.assertTrue(tr._closing)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.connection_lost.assert_called_with(None)
|
||||
|
||||
def test__call_connection_lost(self):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
err = None
|
||||
tr._call_connection_lost(err)
|
||||
self.protocol.connection_lost.assert_called_with(err)
|
||||
self.pipe.close.assert_called_with()
|
||||
|
||||
self.assertIsNone(tr._protocol)
|
||||
self.assertEqual(2, sys.getrefcount(self.protocol),
|
||||
pprint.pformat(gc.get_referrers(self.protocol)))
|
||||
self.assertIsNone(tr._loop)
|
||||
self.assertEqual(2, sys.getrefcount(self.loop),
|
||||
pprint.pformat(gc.get_referrers(self.loop)))
|
||||
|
||||
def test__call_connection_lost_with_err(self):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
err = OSError()
|
||||
tr._call_connection_lost(err)
|
||||
self.protocol.connection_lost.assert_called_with(err)
|
||||
self.pipe.close.assert_called_with()
|
||||
|
||||
self.assertIsNone(tr._protocol)
|
||||
self.assertEqual(2, sys.getrefcount(self.protocol),
|
||||
pprint.pformat(gc.get_referrers(self.protocol)))
|
||||
self.assertIsNone(tr._loop)
|
||||
self.assertEqual(2, sys.getrefcount(self.loop),
|
||||
pprint.pformat(gc.get_referrers(self.loop)))
|
||||
|
||||
def test_close(self):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
tr.write_eof = unittest.mock.Mock()
|
||||
tr.close()
|
||||
tr.write_eof.assert_called_with()
|
||||
|
||||
def test_close_closing(self):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
tr.write_eof = unittest.mock.Mock()
|
||||
tr._closing = True
|
||||
tr.close()
|
||||
self.assertFalse(tr.write_eof.called)
|
||||
|
||||
def test_write_eof(self):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
|
||||
tr.write_eof()
|
||||
self.assertTrue(tr._closing)
|
||||
self.assertFalse(self.loop.readers)
|
||||
test_utils.run_briefly(self.loop)
|
||||
self.protocol.connection_lost.assert_called_with(None)
|
||||
|
||||
def test_write_eof_pending(self):
|
||||
tr = unix_events._UnixWritePipeTransport(
|
||||
self.loop, self.pipe, self.protocol)
|
||||
tr._buffer = [b'data']
|
||||
tr.write_eof()
|
||||
self.assertTrue(tr._closing)
|
||||
self.assertFalse(self.protocol.connection_lost.called)
|
||||
|
|
@ -0,0 +1,95 @@
|
|||
import os
|
||||
import sys
|
||||
import unittest
|
||||
|
||||
if sys.platform != 'win32':
|
||||
raise unittest.SkipTest('Windows only')
|
||||
|
||||
import asyncio
|
||||
|
||||
from asyncio import windows_events
|
||||
from asyncio import protocols
|
||||
from asyncio import streams
|
||||
from asyncio import transports
|
||||
from asyncio import test_utils
|
||||
|
||||
|
||||
class UpperProto(protocols.Protocol):
|
||||
def __init__(self):
|
||||
self.buf = []
|
||||
|
||||
def connection_made(self, trans):
|
||||
self.trans = trans
|
||||
|
||||
def data_received(self, data):
|
||||
self.buf.append(data)
|
||||
if b'\n' in data:
|
||||
self.trans.write(b''.join(self.buf).upper())
|
||||
self.trans.close()
|
||||
|
||||
|
||||
class ProactorTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
self.loop = windows_events.ProactorEventLoop()
|
||||
asyncio.set_event_loop(None)
|
||||
|
||||
def tearDown(self):
|
||||
self.loop.close()
|
||||
self.loop = None
|
||||
|
||||
def test_close(self):
|
||||
a, b = self.loop._socketpair()
|
||||
trans = self.loop._make_socket_transport(a, protocols.Protocol())
|
||||
f = asyncio.async(self.loop.sock_recv(b, 100))
|
||||
trans.close()
|
||||
self.loop.run_until_complete(f)
|
||||
self.assertEqual(f.result(), b'')
|
||||
|
||||
def test_double_bind(self):
|
||||
ADDRESS = r'\\.\pipe\test_double_bind-%s' % os.getpid()
|
||||
server1 = windows_events.PipeServer(ADDRESS)
|
||||
with self.assertRaises(PermissionError):
|
||||
server2 = windows_events.PipeServer(ADDRESS)
|
||||
server1.close()
|
||||
|
||||
def test_pipe(self):
|
||||
res = self.loop.run_until_complete(self._test_pipe())
|
||||
self.assertEqual(res, 'done')
|
||||
|
||||
def _test_pipe(self):
|
||||
ADDRESS = r'\\.\pipe\_test_pipe-%s' % os.getpid()
|
||||
|
||||
with self.assertRaises(FileNotFoundError):
|
||||
yield from self.loop.create_pipe_connection(
|
||||
protocols.Protocol, ADDRESS)
|
||||
|
||||
[server] = yield from self.loop.start_serving_pipe(
|
||||
UpperProto, ADDRESS)
|
||||
self.assertIsInstance(server, windows_events.PipeServer)
|
||||
|
||||
clients = []
|
||||
for i in range(5):
|
||||
stream_reader = streams.StreamReader(loop=self.loop)
|
||||
protocol = streams.StreamReaderProtocol(stream_reader)
|
||||
trans, proto = yield from self.loop.create_pipe_connection(
|
||||
lambda:protocol, ADDRESS)
|
||||
self.assertIsInstance(trans, transports.Transport)
|
||||
self.assertEqual(protocol, proto)
|
||||
clients.append((stream_reader, trans))
|
||||
|
||||
for i, (r, w) in enumerate(clients):
|
||||
w.write('lower-{}\n'.format(i).encode())
|
||||
|
||||
for i, (r, w) in enumerate(clients):
|
||||
response = yield from r.readline()
|
||||
self.assertEqual(response, 'LOWER-{}\n'.format(i).encode())
|
||||
w.close()
|
||||
|
||||
server.close()
|
||||
|
||||
with self.assertRaises(FileNotFoundError):
|
||||
yield from self.loop.create_pipe_connection(
|
||||
protocols.Protocol, ADDRESS)
|
||||
|
||||
return 'done'
|
||||
|
|
@ -0,0 +1,136 @@
|
|||
"""Tests for window_utils"""
|
||||
|
||||
import sys
|
||||
import test.support
|
||||
import unittest
|
||||
import unittest.mock
|
||||
|
||||
if sys.platform != 'win32':
|
||||
raise unittest.SkipTest('Windows only')
|
||||
|
||||
import _winapi
|
||||
|
||||
from asyncio import windows_utils
|
||||
from asyncio import _overlapped
|
||||
|
||||
|
||||
class WinsocketpairTests(unittest.TestCase):
|
||||
|
||||
def test_winsocketpair(self):
|
||||
ssock, csock = windows_utils.socketpair()
|
||||
|
||||
csock.send(b'xxx')
|
||||
self.assertEqual(b'xxx', ssock.recv(1024))
|
||||
|
||||
csock.close()
|
||||
ssock.close()
|
||||
|
||||
@unittest.mock.patch('asyncio.windows_utils.socket')
|
||||
def test_winsocketpair_exc(self, m_socket):
|
||||
m_socket.socket.return_value.getsockname.return_value = ('', 12345)
|
||||
m_socket.socket.return_value.accept.return_value = object(), object()
|
||||
m_socket.socket.return_value.connect.side_effect = OSError()
|
||||
|
||||
self.assertRaises(OSError, windows_utils.socketpair)
|
||||
|
||||
|
||||
class PipeTests(unittest.TestCase):
|
||||
|
||||
def test_pipe_overlapped(self):
|
||||
h1, h2 = windows_utils.pipe(overlapped=(True, True))
|
||||
try:
|
||||
ov1 = _overlapped.Overlapped()
|
||||
self.assertFalse(ov1.pending)
|
||||
self.assertEqual(ov1.error, 0)
|
||||
|
||||
ov1.ReadFile(h1, 100)
|
||||
self.assertTrue(ov1.pending)
|
||||
self.assertEqual(ov1.error, _winapi.ERROR_IO_PENDING)
|
||||
ERROR_IO_INCOMPLETE = 996
|
||||
try:
|
||||
ov1.getresult()
|
||||
except OSError as e:
|
||||
self.assertEqual(e.winerror, ERROR_IO_INCOMPLETE)
|
||||
else:
|
||||
raise RuntimeError('expected ERROR_IO_INCOMPLETE')
|
||||
|
||||
ov2 = _overlapped.Overlapped()
|
||||
self.assertFalse(ov2.pending)
|
||||
self.assertEqual(ov2.error, 0)
|
||||
|
||||
ov2.WriteFile(h2, b"hello")
|
||||
self.assertIn(ov2.error, {0, _winapi.ERROR_IO_PENDING})
|
||||
|
||||
res = _winapi.WaitForMultipleObjects([ov2.event], False, 100)
|
||||
self.assertEqual(res, _winapi.WAIT_OBJECT_0)
|
||||
|
||||
self.assertFalse(ov1.pending)
|
||||
self.assertEqual(ov1.error, ERROR_IO_INCOMPLETE)
|
||||
self.assertFalse(ov2.pending)
|
||||
self.assertIn(ov2.error, {0, _winapi.ERROR_IO_PENDING})
|
||||
self.assertEqual(ov1.getresult(), b"hello")
|
||||
finally:
|
||||
_winapi.CloseHandle(h1)
|
||||
_winapi.CloseHandle(h2)
|
||||
|
||||
def test_pipe_handle(self):
|
||||
h, _ = windows_utils.pipe(overlapped=(True, True))
|
||||
_winapi.CloseHandle(_)
|
||||
p = windows_utils.PipeHandle(h)
|
||||
self.assertEqual(p.fileno(), h)
|
||||
self.assertEqual(p.handle, h)
|
||||
|
||||
# check garbage collection of p closes handle
|
||||
del p
|
||||
test.support.gc_collect()
|
||||
try:
|
||||
_winapi.CloseHandle(h)
|
||||
except OSError as e:
|
||||
self.assertEqual(e.winerror, 6) # ERROR_INVALID_HANDLE
|
||||
else:
|
||||
raise RuntimeError('expected ERROR_INVALID_HANDLE')
|
||||
|
||||
|
||||
class PopenTests(unittest.TestCase):
|
||||
|
||||
def test_popen(self):
|
||||
command = r"""if 1:
|
||||
import sys
|
||||
s = sys.stdin.readline()
|
||||
sys.stdout.write(s.upper())
|
||||
sys.stderr.write('stderr')
|
||||
"""
|
||||
msg = b"blah\n"
|
||||
|
||||
p = windows_utils.Popen([sys.executable, '-c', command],
|
||||
stdin=windows_utils.PIPE,
|
||||
stdout=windows_utils.PIPE,
|
||||
stderr=windows_utils.PIPE)
|
||||
|
||||
for f in [p.stdin, p.stdout, p.stderr]:
|
||||
self.assertIsInstance(f, windows_utils.PipeHandle)
|
||||
|
||||
ovin = _overlapped.Overlapped()
|
||||
ovout = _overlapped.Overlapped()
|
||||
overr = _overlapped.Overlapped()
|
||||
|
||||
ovin.WriteFile(p.stdin.handle, msg)
|
||||
ovout.ReadFile(p.stdout.handle, 100)
|
||||
overr.ReadFile(p.stderr.handle, 100)
|
||||
|
||||
events = [ovin.event, ovout.event, overr.event]
|
||||
res = _winapi.WaitForMultipleObjects(events, True, 2000)
|
||||
self.assertEqual(res, _winapi.WAIT_OBJECT_0)
|
||||
self.assertFalse(ovout.pending)
|
||||
self.assertFalse(overr.pending)
|
||||
self.assertFalse(ovin.pending)
|
||||
|
||||
self.assertEqual(ovin.getresult(), len(msg))
|
||||
out = ovout.getresult().rstrip()
|
||||
err = overr.getresult().rstrip()
|
||||
|
||||
self.assertGreater(len(out), 0)
|
||||
self.assertGreater(len(err), 0)
|
||||
# allow for partial reads...
|
||||
self.assertTrue(msg.upper().rstrip().startswith(out))
|
||||
self.assertTrue(b"stderr".startswith(err))
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
test_asyncio.test_base_events
|
||||
test_asyncio.test_events
|
||||
test_asyncio.test_futures
|
||||
test_asyncio.test_locks
|
||||
test_asyncio.test_proactor_events
|
||||
test_asyncio.test_queues
|
||||
test_asyncio.test_selector_events
|
||||
test_asyncio.test_selectors
|
||||
test_asyncio.test_streams
|
||||
test_asyncio.test_tasks
|
||||
test_asyncio.test_transports
|
||||
test_asyncio.test_unix_events
|
||||
test_asyncio.test_windows_events
|
||||
test_asyncio.test_windows_utils
|
||||
|
|
@ -42,6 +42,12 @@ Core and Builtins
|
|||
Library
|
||||
-------
|
||||
|
||||
|
||||
- Issue #19262: Initial check in of the 'asyncio' package (a.k.a. Tulip,
|
||||
a.k.a. PEP 3156). There are no docs yet, and the PEP is slightly
|
||||
out of date with the code. This module will have *provisional* status
|
||||
in Python 3.4.
|
||||
|
||||
- Issue #19276: Fixed the wave module on 64-bit big-endian platforms.
|
||||
|
||||
- Issue #19266: Rename the new-in-3.4 ``contextlib.ignore`` context manager
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,234 @@
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<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ProjectConfiguration Include="Debug|x64">
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<Platform>x64</Platform>
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<ProjectConfiguration Include="PGInstrument|Win32">
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<ProjectConfiguration Include="PGInstrument|x64">
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<ProjectConfiguration Include="PGUpdate|Win32">
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<Configuration>PGUpdate</Configuration>
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<Platform>Win32</Platform>
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<ProjectConfiguration Include="PGUpdate|x64">
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<Platform>Win32</Platform>
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<ProjectConfiguration Include="Release|x64">
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|
|
@ -76,6 +76,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_freeze_importlib", "_freez
|
|||
EndProject
|
||||
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_sha3", "_sha3.vcxproj", "{254A0C05-6696-4B08-8CB2-EF7D533AEE01}"
|
||||
EndProject
|
||||
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_overlapped", "_overlapped.vcxproj", "{EB6E69DD-04BF-4543-9B92-49FAABCEAC2E}"
|
||||
EndProject
|
||||
Global
|
||||
GlobalSection(SolutionConfigurationPlatforms) = preSolution
|
||||
Debug|Win32 = Debug|Win32
|
||||
|
|
|
|||
Loading…
Reference in New Issue