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bpo-23057: add loop self socket as wakeup fd for signals (#11135)

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This commit is contained in:
Vladimir Matveev 2018-12-18 13:56:17 -08:00 • committed by Andrew Svetlov
parent e3666fc8ef
commit b5c8cfa1da
6 changed files with 104 additions and 6 deletions
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5
Lib/asyncio/proactor_events.py
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@ -10,6 +10,7 @@ import io
import os
import socket
import warnings
import signal
from . import base_events
from . import constants
@ -489,6 +490,8 @@ class BaseProactorEventLoop(base_events.BaseEventLoop):
self._accept_futures = {} # socket file descriptor => Future
proactor.set_loop(self)
self._make_self_pipe()
self_no = self._csock.fileno()
signal.set_wakeup_fd(self_no)
def _make_socket_transport(self, sock, protocol, waiter=None,
extra=None, server=None):
@ -529,6 +532,7 @@ class BaseProactorEventLoop(base_events.BaseEventLoop):
if self.is_closed():
return
signal.set_wakeup_fd(-1)
# Call these methods before closing the event loop (before calling
# BaseEventLoop.close), because they can schedule callbacks with
# call_soon(), which is forbidden when the event loop is closed.
@ -613,7 +617,6 @@ class BaseProactorEventLoop(base_events.BaseEventLoop):
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: