Patch 1439 by Bill Janssen. I think this will work.
Tested on Windows by Christian Heimes. I changed the code slightly, renaming decref_socketios() to _decref_socketios(), and moving it closer to the close() method that it calls. Hopefully Bill can now submit his SSL port to 3.0.
This commit is contained in:
parent
e69a08ea93
commit
86bc33cb7c
106
Lib/socket.py
106
Lib/socket.py
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@ -21,7 +21,6 @@ ntohs(), ntohl() -- convert 16, 32 bit int from network to host byte order
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htons(), htonl() -- convert 16, 32 bit int from host to network byte order
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inet_aton() -- convert IP addr string (123.45.67.89) to 32-bit packed format
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inet_ntoa() -- convert 32-bit packed format IP to string (123.45.67.89)
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ssl() -- secure socket layer support (only available if configured)
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socket.getdefaulttimeout() -- get the default timeout value
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socket.setdefaulttimeout() -- set the default timeout value
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create_connection() -- connects to an address, with an optional timeout
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@ -46,36 +45,6 @@ the setsockopt() and getsockopt() methods.
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import _socket
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from _socket import *
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try:
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import _ssl
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import ssl as _realssl
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except ImportError:
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# no SSL support
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pass
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else:
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def ssl(sock, keyfile=None, certfile=None):
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# we do an internal import here because the ssl
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# module imports the socket module
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warnings.warn("socket.ssl() is deprecated. Use ssl.wrap_socket() instead.",
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DeprecationWarning, stacklevel=2)
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return _realssl.sslwrap_simple(sock, keyfile, certfile)
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# we need to import the same constants we used to...
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from _ssl import SSLError as sslerror
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from _ssl import \
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RAND_add, \
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RAND_egd, \
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RAND_status, \
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SSL_ERROR_ZERO_RETURN, \
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SSL_ERROR_WANT_READ, \
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SSL_ERROR_WANT_WRITE, \
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SSL_ERROR_WANT_X509_LOOKUP, \
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SSL_ERROR_SYSCALL, \
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SSL_ERROR_SSL, \
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SSL_ERROR_WANT_CONNECT, \
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SSL_ERROR_EOF, \
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SSL_ERROR_INVALID_ERROR_CODE
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import os, sys, io
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try:
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@ -119,49 +88,11 @@ if _can_dup_socket:
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nfd = os.dup(fd)
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return socket(family, type, proto, fileno=nfd)
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class SocketCloser:
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"""Helper to manage socket close() logic for makefile().
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The OS socket should not be closed until the socket and all
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of its makefile-children are closed. If the refcount is zero
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when socket.close() is called, this is easy: Just close the
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socket. If the refcount is non-zero when socket.close() is
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called, then the real close should not occur until the last
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makefile-child is closed.
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"""
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def __init__(self, sock):
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self._sock = sock
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self._makefile_refs = 0
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# Test whether the socket is open.
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try:
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sock.fileno()
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self._socket_open = True
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except error:
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self._socket_open = False
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def socket_close(self):
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self._socket_open = False
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self.close()
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def makefile_open(self):
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self._makefile_refs += 1
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def makefile_close(self):
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self._makefile_refs -= 1
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self.close()
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def close(self):
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if not (self._socket_open or self._makefile_refs):
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self._sock._real_close()
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class socket(_socket.socket):
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"""A subclass of _socket.socket adding the makefile() method."""
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__slots__ = ["__weakref__", "_closer"]
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__slots__ = ["__weakref__", "_io_refs", "_closed"]
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if not _can_dup_socket:
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__slots__.append("_base")
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@ -170,16 +101,17 @@ class socket(_socket.socket):
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_socket.socket.__init__(self, family, type, proto)
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else:
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_socket.socket.__init__(self, family, type, proto, fileno)
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# Defer creating a SocketCloser until makefile() is actually called.
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self._closer = None
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self._io_refs = 0
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self._closed = False
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def __repr__(self):
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"""Wrap __repr__() to reveal the real class name."""
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s = _socket.socket.__repr__(self)
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if s.startswith("<socket object"):
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s = "<%s.%s%s" % (self.__class__.__module__,
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self.__class__.__name__,
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s[7:])
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s = "<%s.%s%s%s" % (self.__class__.__module__,
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self.__class__.__name__,
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(self._closed and " [closed] ") or "",
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s[7:])
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return s
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def accept(self):
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@ -216,9 +148,8 @@ class socket(_socket.socket):
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rawmode += "r"
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if writing:
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rawmode += "w"
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if self._closer is None:
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self._closer = SocketCloser(self)
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raw = SocketIO(self, rawmode, self._closer)
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raw = SocketIO(self, rawmode)
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self._io_refs += 1
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if buffering is None:
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buffering = -1
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if buffering < 0:
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@ -245,11 +176,16 @@ class socket(_socket.socket):
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text.mode = mode
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return text
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def _decref_socketios(self):
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if self._io_refs > 0:
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self._io_refs -= 1
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if self._closed:
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self.close()
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def close(self):
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if self._closer is None:
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self._closed = True
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if self._io_refs < 1:
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self._real_close()
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else:
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self._closer.socket_close()
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# _real_close calls close on the _socket.socket base class.
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@ -275,16 +211,14 @@ class SocketIO(io.RawIOBase):
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# XXX More docs
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def __init__(self, sock, mode, closer):
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def __init__(self, sock, mode):
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if mode not in ("r", "w", "rw"):
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raise ValueError("invalid mode: %r" % mode)
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io.RawIOBase.__init__(self)
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self._sock = sock
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self._mode = mode
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self._closer = closer
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self._reading = "r" in mode
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self._writing = "w" in mode
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closer.makefile_open()
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def readinto(self, b):
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self._checkClosed()
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@ -308,9 +242,11 @@ class SocketIO(io.RawIOBase):
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def close(self):
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if self.closed:
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return
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self._closer.makefile_close()
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io.RawIOBase.close(self)
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def __del__(self):
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self._sock._decref_socketios()
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def getfqdn(name=''):
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"""Get fully qualified domain name from name.
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