mirror of
https://github.com/python/cpython.git
synced 2025-11-03 23:21:29 +00:00
359 lines
12 KiB
Python
359 lines
12 KiB
Python
import os
|
|
import signal
|
|
import socket
|
|
import sys
|
|
import time
|
|
import threading
|
|
import unittest
|
|
from unittest import mock
|
|
|
|
if sys.platform != 'win32':
|
|
raise unittest.SkipTest('Windows only')
|
|
|
|
import _overlapped
|
|
import _winapi
|
|
|
|
import asyncio
|
|
from asyncio import windows_events
|
|
from test.test_asyncio import utils as test_utils
|
|
|
|
|
|
def tearDownModule():
|
|
asyncio.set_event_loop_policy(None)
|
|
|
|
|
|
class UpperProto(asyncio.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 WindowsEventsTestCase(test_utils.TestCase):
|
|
def _unraisablehook(self, unraisable):
|
|
# Storing unraisable.object can resurrect an object which is being
|
|
# finalized. Storing unraisable.exc_value creates a reference cycle.
|
|
self._unraisable = unraisable
|
|
print(unraisable)
|
|
|
|
def setUp(self):
|
|
self._prev_unraisablehook = sys.unraisablehook
|
|
self._unraisable = None
|
|
sys.unraisablehook = self._unraisablehook
|
|
|
|
def tearDown(self):
|
|
sys.unraisablehook = self._prev_unraisablehook
|
|
self.assertIsNone(self._unraisable)
|
|
|
|
class ProactorLoopCtrlC(WindowsEventsTestCase):
|
|
|
|
def test_ctrl_c(self):
|
|
|
|
def SIGINT_after_delay():
|
|
time.sleep(0.1)
|
|
signal.raise_signal(signal.SIGINT)
|
|
|
|
thread = threading.Thread(target=SIGINT_after_delay)
|
|
loop = asyncio.new_event_loop()
|
|
try:
|
|
# only start the loop once the event loop is running
|
|
loop.call_soon(thread.start)
|
|
loop.run_forever()
|
|
self.fail("should not fall through 'run_forever'")
|
|
except KeyboardInterrupt:
|
|
pass
|
|
finally:
|
|
self.close_loop(loop)
|
|
thread.join()
|
|
|
|
|
|
class ProactorMultithreading(WindowsEventsTestCase):
|
|
def test_run_from_nonmain_thread(self):
|
|
finished = False
|
|
|
|
async def coro():
|
|
await asyncio.sleep(0)
|
|
|
|
def func():
|
|
nonlocal finished
|
|
loop = asyncio.new_event_loop()
|
|
loop.run_until_complete(coro())
|
|
# close() must not call signal.set_wakeup_fd()
|
|
loop.close()
|
|
finished = True
|
|
|
|
thread = threading.Thread(target=func)
|
|
thread.start()
|
|
thread.join()
|
|
self.assertTrue(finished)
|
|
|
|
|
|
class ProactorTests(WindowsEventsTestCase):
|
|
|
|
def setUp(self):
|
|
super().setUp()
|
|
self.loop = asyncio.ProactorEventLoop()
|
|
self.set_event_loop(self.loop)
|
|
|
|
def test_close(self):
|
|
a, b = socket.socketpair()
|
|
trans = self.loop._make_socket_transport(a, asyncio.Protocol())
|
|
f = asyncio.ensure_future(self.loop.sock_recv(b, 100), loop=self.loop)
|
|
trans.close()
|
|
self.loop.run_until_complete(f)
|
|
self.assertEqual(f.result(), b'')
|
|
b.close()
|
|
|
|
def test_double_bind(self):
|
|
ADDRESS = r'\\.\pipe\test_double_bind-%s' % os.getpid()
|
|
server1 = windows_events.PipeServer(ADDRESS)
|
|
with self.assertRaises(PermissionError):
|
|
windows_events.PipeServer(ADDRESS)
|
|
server1.close()
|
|
|
|
def test_pipe(self):
|
|
res = self.loop.run_until_complete(self._test_pipe())
|
|
self.assertEqual(res, 'done')
|
|
|
|
async def _test_pipe(self):
|
|
ADDRESS = r'\\.\pipe\_test_pipe-%s' % os.getpid()
|
|
|
|
with self.assertRaises(FileNotFoundError):
|
|
await self.loop.create_pipe_connection(
|
|
asyncio.Protocol, ADDRESS)
|
|
|
|
[server] = await self.loop.start_serving_pipe(
|
|
UpperProto, ADDRESS)
|
|
self.assertIsInstance(server, windows_events.PipeServer)
|
|
|
|
clients = []
|
|
for i in range(5):
|
|
stream_reader = asyncio.StreamReader(loop=self.loop)
|
|
protocol = asyncio.StreamReaderProtocol(stream_reader,
|
|
loop=self.loop)
|
|
trans, proto = await self.loop.create_pipe_connection(
|
|
lambda: protocol, ADDRESS)
|
|
self.assertIsInstance(trans, asyncio.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 = await r.readline()
|
|
self.assertEqual(response, 'LOWER-{}\n'.format(i).encode())
|
|
w.close()
|
|
|
|
server.close()
|
|
|
|
with self.assertRaises(FileNotFoundError):
|
|
await self.loop.create_pipe_connection(
|
|
asyncio.Protocol, ADDRESS)
|
|
|
|
return 'done'
|
|
|
|
def test_connect_pipe_cancel(self):
|
|
exc = OSError()
|
|
exc.winerror = _overlapped.ERROR_PIPE_BUSY
|
|
with mock.patch.object(_overlapped, 'ConnectPipe',
|
|
side_effect=exc) as connect:
|
|
coro = self.loop._proactor.connect_pipe('pipe_address')
|
|
task = self.loop.create_task(coro)
|
|
|
|
# check that it's possible to cancel connect_pipe()
|
|
task.cancel()
|
|
with self.assertRaises(asyncio.CancelledError):
|
|
self.loop.run_until_complete(task)
|
|
|
|
def test_wait_for_handle(self):
|
|
event = _overlapped.CreateEvent(None, True, False, None)
|
|
self.addCleanup(_winapi.CloseHandle, event)
|
|
|
|
# Wait for unset event with 0.5s timeout;
|
|
# result should be False at timeout
|
|
timeout = 0.5
|
|
fut = self.loop._proactor.wait_for_handle(event, timeout)
|
|
start = self.loop.time()
|
|
done = self.loop.run_until_complete(fut)
|
|
elapsed = self.loop.time() - start
|
|
|
|
self.assertEqual(done, False)
|
|
self.assertFalse(fut.result())
|
|
self.assertGreaterEqual(elapsed, timeout - test_utils.CLOCK_RES)
|
|
|
|
_overlapped.SetEvent(event)
|
|
|
|
# Wait for set event;
|
|
# result should be True immediately
|
|
fut = self.loop._proactor.wait_for_handle(event, 10)
|
|
done = self.loop.run_until_complete(fut)
|
|
|
|
self.assertEqual(done, True)
|
|
self.assertTrue(fut.result())
|
|
|
|
# asyncio issue #195: cancelling a done _WaitHandleFuture
|
|
# must not crash
|
|
fut.cancel()
|
|
|
|
def test_wait_for_handle_cancel(self):
|
|
event = _overlapped.CreateEvent(None, True, False, None)
|
|
self.addCleanup(_winapi.CloseHandle, event)
|
|
|
|
# Wait for unset event with a cancelled future;
|
|
# CancelledError should be raised immediately
|
|
fut = self.loop._proactor.wait_for_handle(event, 10)
|
|
fut.cancel()
|
|
with self.assertRaises(asyncio.CancelledError):
|
|
self.loop.run_until_complete(fut)
|
|
|
|
# asyncio issue #195: cancelling a _WaitHandleFuture twice
|
|
# must not crash
|
|
fut = self.loop._proactor.wait_for_handle(event)
|
|
fut.cancel()
|
|
fut.cancel()
|
|
|
|
def test_read_self_pipe_restart(self):
|
|
# Regression test for https://bugs.python.org/issue39010
|
|
# Previously, restarting a proactor event loop in certain states
|
|
# would lead to spurious ConnectionResetErrors being logged.
|
|
self.loop.call_exception_handler = mock.Mock()
|
|
# Start an operation in another thread so that the self-pipe is used.
|
|
# This is theoretically timing-dependent (the task in the executor
|
|
# must complete before our start/stop cycles), but in practice it
|
|
# seems to work every time.
|
|
f = self.loop.run_in_executor(None, lambda: None)
|
|
self.loop.stop()
|
|
self.loop.run_forever()
|
|
self.loop.stop()
|
|
self.loop.run_forever()
|
|
|
|
# Shut everything down cleanly. This is an important part of the
|
|
# test - in issue 39010, the error occurred during loop.close(),
|
|
# so we want to close the loop during the test instead of leaving
|
|
# it for tearDown.
|
|
#
|
|
# First wait for f to complete to avoid a "future's result was never
|
|
# retrieved" error.
|
|
self.loop.run_until_complete(f)
|
|
# Now shut down the loop itself (self.close_loop also shuts down the
|
|
# loop's default executor).
|
|
self.close_loop(self.loop)
|
|
self.assertFalse(self.loop.call_exception_handler.called)
|
|
|
|
def test_address_argument_type_error(self):
|
|
# Regression test for https://github.com/python/cpython/issues/98793
|
|
proactor = self.loop._proactor
|
|
sock = socket.socket(type=socket.SOCK_DGRAM)
|
|
bad_address = None
|
|
with self.assertRaises(TypeError):
|
|
proactor.connect(sock, bad_address)
|
|
with self.assertRaises(TypeError):
|
|
proactor.sendto(sock, b'abc', addr=bad_address)
|
|
sock.close()
|
|
|
|
def test_client_pipe_stat(self):
|
|
res = self.loop.run_until_complete(self._test_client_pipe_stat())
|
|
self.assertEqual(res, 'done')
|
|
|
|
async def _test_client_pipe_stat(self):
|
|
# Regression test for https://github.com/python/cpython/issues/100573
|
|
ADDRESS = r'\\.\pipe\test_client_pipe_stat-%s' % os.getpid()
|
|
|
|
async def probe():
|
|
# See https://github.com/python/cpython/pull/100959#discussion_r1068533658
|
|
h = _overlapped.ConnectPipe(ADDRESS)
|
|
try:
|
|
_winapi.CloseHandle(_overlapped.ConnectPipe(ADDRESS))
|
|
except OSError as e:
|
|
if e.winerror != _overlapped.ERROR_PIPE_BUSY:
|
|
raise
|
|
finally:
|
|
_winapi.CloseHandle(h)
|
|
|
|
with self.assertRaises(FileNotFoundError):
|
|
await probe()
|
|
|
|
[server] = await self.loop.start_serving_pipe(asyncio.Protocol, ADDRESS)
|
|
self.assertIsInstance(server, windows_events.PipeServer)
|
|
|
|
errors = []
|
|
self.loop.set_exception_handler(lambda _, data: errors.append(data))
|
|
|
|
for i in range(5):
|
|
await self.loop.create_task(probe())
|
|
|
|
self.assertEqual(len(errors), 0, errors)
|
|
|
|
server.close()
|
|
|
|
with self.assertRaises(FileNotFoundError):
|
|
await probe()
|
|
|
|
return "done"
|
|
|
|
def test_loop_restart(self):
|
|
# We're fishing for the "RuntimeError: <_overlapped.Overlapped object at XXX>
|
|
# still has pending operation at deallocation, the process may crash" error
|
|
stop = threading.Event()
|
|
def threadMain():
|
|
while not stop.is_set():
|
|
self.loop.call_soon_threadsafe(lambda: None)
|
|
time.sleep(0.01)
|
|
thr = threading.Thread(target=threadMain)
|
|
|
|
# In 10 60-second runs of this test prior to the fix:
|
|
# time in seconds until failure: (none), 15.0, 6.4, (none), 7.6, 8.3, 1.7, 22.2, 23.5, 8.3
|
|
# 10 seconds had a 50% failure rate but longer would be more costly
|
|
end_time = time.time() + 10 # Run for 10 seconds
|
|
self.loop.call_soon(thr.start)
|
|
while not self._unraisable: # Stop if we got an unraisable exc
|
|
self.loop.stop()
|
|
self.loop.run_forever()
|
|
if time.time() >= end_time:
|
|
break
|
|
|
|
stop.set()
|
|
thr.join()
|
|
|
|
|
|
class WinPolicyTests(WindowsEventsTestCase):
|
|
|
|
def test_selector_win_policy(self):
|
|
async def main():
|
|
self.assertIsInstance(
|
|
asyncio.get_running_loop(),
|
|
asyncio.SelectorEventLoop)
|
|
|
|
old_policy = asyncio.get_event_loop_policy()
|
|
try:
|
|
asyncio.set_event_loop_policy(
|
|
asyncio.WindowsSelectorEventLoopPolicy())
|
|
asyncio.run(main())
|
|
finally:
|
|
asyncio.set_event_loop_policy(old_policy)
|
|
|
|
def test_proactor_win_policy(self):
|
|
async def main():
|
|
self.assertIsInstance(
|
|
asyncio.get_running_loop(),
|
|
asyncio.ProactorEventLoop)
|
|
|
|
old_policy = asyncio.get_event_loop_policy()
|
|
try:
|
|
asyncio.set_event_loop_policy(
|
|
asyncio.WindowsProactorEventLoopPolicy())
|
|
asyncio.run(main())
|
|
finally:
|
|
asyncio.set_event_loop_policy(old_policy)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|