mirror of https://github.com/python/cpython
157 lines
4.7 KiB
Python
157 lines
4.7 KiB
Python
import multiprocessing
|
|
import sys
|
|
import time
|
|
import unittest
|
|
from concurrent import futures
|
|
from concurrent.futures._base import (
|
|
PENDING, RUNNING, CANCELLED, CANCELLED_AND_NOTIFIED, FINISHED, Future,
|
|
)
|
|
from concurrent.futures.process import _check_system_limits
|
|
|
|
from test import support
|
|
from test.support import threading_helper
|
|
|
|
|
|
def create_future(state=PENDING, exception=None, result=None):
|
|
f = Future()
|
|
f._state = state
|
|
f._exception = exception
|
|
f._result = result
|
|
return f
|
|
|
|
|
|
PENDING_FUTURE = create_future(state=PENDING)
|
|
RUNNING_FUTURE = create_future(state=RUNNING)
|
|
CANCELLED_FUTURE = create_future(state=CANCELLED)
|
|
CANCELLED_AND_NOTIFIED_FUTURE = create_future(state=CANCELLED_AND_NOTIFIED)
|
|
EXCEPTION_FUTURE = create_future(state=FINISHED, exception=OSError())
|
|
SUCCESSFUL_FUTURE = create_future(state=FINISHED, result=42)
|
|
|
|
|
|
class BaseTestCase(unittest.TestCase):
|
|
def setUp(self):
|
|
self._thread_key = threading_helper.threading_setup()
|
|
|
|
def tearDown(self):
|
|
support.reap_children()
|
|
threading_helper.threading_cleanup(*self._thread_key)
|
|
|
|
|
|
class ExecutorMixin:
|
|
worker_count = 5
|
|
executor_kwargs = {}
|
|
|
|
def setUp(self):
|
|
super().setUp()
|
|
|
|
self.t1 = time.monotonic()
|
|
if hasattr(self, "ctx"):
|
|
self.executor = self.executor_type(
|
|
max_workers=self.worker_count,
|
|
mp_context=self.get_context(),
|
|
**self.executor_kwargs)
|
|
else:
|
|
self.executor = self.executor_type(
|
|
max_workers=self.worker_count,
|
|
**self.executor_kwargs)
|
|
|
|
def tearDown(self):
|
|
self.executor.shutdown(wait=True)
|
|
self.executor = None
|
|
|
|
dt = time.monotonic() - self.t1
|
|
if support.verbose:
|
|
print("%.2fs" % dt, end=' ')
|
|
self.assertLess(dt, 300, "synchronization issue: test lasted too long")
|
|
|
|
super().tearDown()
|
|
|
|
def get_context(self):
|
|
return multiprocessing.get_context(self.ctx)
|
|
|
|
|
|
class ThreadPoolMixin(ExecutorMixin):
|
|
executor_type = futures.ThreadPoolExecutor
|
|
|
|
|
|
class InterpreterPoolMixin(ExecutorMixin):
|
|
executor_type = futures.InterpreterPoolExecutor
|
|
|
|
|
|
class ProcessPoolForkMixin(ExecutorMixin):
|
|
executor_type = futures.ProcessPoolExecutor
|
|
ctx = "fork"
|
|
|
|
def get_context(self):
|
|
try:
|
|
_check_system_limits()
|
|
except NotImplementedError:
|
|
self.skipTest("ProcessPoolExecutor unavailable on this system")
|
|
if sys.platform == "win32":
|
|
self.skipTest("require unix system")
|
|
if support.check_sanitizer(thread=True):
|
|
self.skipTest("TSAN doesn't support threads after fork")
|
|
return super().get_context()
|
|
|
|
|
|
class ProcessPoolSpawnMixin(ExecutorMixin):
|
|
executor_type = futures.ProcessPoolExecutor
|
|
ctx = "spawn"
|
|
|
|
def get_context(self):
|
|
try:
|
|
_check_system_limits()
|
|
except NotImplementedError:
|
|
self.skipTest("ProcessPoolExecutor unavailable on this system")
|
|
return super().get_context()
|
|
|
|
|
|
class ProcessPoolForkserverMixin(ExecutorMixin):
|
|
executor_type = futures.ProcessPoolExecutor
|
|
ctx = "forkserver"
|
|
|
|
def get_context(self):
|
|
try:
|
|
_check_system_limits()
|
|
except NotImplementedError:
|
|
self.skipTest("ProcessPoolExecutor unavailable on this system")
|
|
if sys.platform == "win32":
|
|
self.skipTest("require unix system")
|
|
if support.check_sanitizer(thread=True):
|
|
self.skipTest("TSAN doesn't support threads after fork")
|
|
return super().get_context()
|
|
|
|
|
|
def create_executor_tests(remote_globals, mixin, bases=(BaseTestCase,),
|
|
executor_mixins=(ThreadPoolMixin,
|
|
InterpreterPoolMixin,
|
|
ProcessPoolForkMixin,
|
|
ProcessPoolForkserverMixin,
|
|
ProcessPoolSpawnMixin)):
|
|
def strip_mixin(name):
|
|
if name.endswith(('Mixin', 'Tests')):
|
|
return name[:-5]
|
|
elif name.endswith('Test'):
|
|
return name[:-4]
|
|
else:
|
|
return name
|
|
|
|
module = remote_globals['__name__']
|
|
for exe in executor_mixins:
|
|
name = ("%s%sTest"
|
|
% (strip_mixin(exe.__name__), strip_mixin(mixin.__name__)))
|
|
cls = type(name, (mixin,) + (exe,) + bases, {'__module__': module})
|
|
remote_globals[name] = cls
|
|
|
|
|
|
def setup_module():
|
|
try:
|
|
_check_system_limits()
|
|
except NotImplementedError:
|
|
pass
|
|
else:
|
|
unittest.addModuleCleanup(multiprocessing.util._cleanup_tests)
|
|
|
|
thread_info = threading_helper.threading_setup()
|
|
unittest.addModuleCleanup(threading_helper.threading_cleanup, *thread_info)
|