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Closes #21595: asyncio.BaseSelectorEventLoop._read_from_self() now reads all

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available bytes from the "self pipe", not only a single byte. This change
reduces the risk of having the pipe full and so getting the innocuous
"BlockingIOError: [Errno 11] Resource temporarily unavailable" message.
This commit is contained in:
Victor Stinner 2014-06-19 12:59:15 +02:00
parent 6bfd854ea8
commit 54c4b8e5c1
1 changed files with 9 additions and 4 deletions
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13
Lib/asyncio/selector_events.py
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@ -83,10 +83,15 @@ class BaseSelectorEventLoop(base_events.BaseEventLoop):
self.add_reader(self._ssock.fileno(), self._read_from_self) self.add_reader(self._ssock.fileno(), self._read_from_self)
def _read_from_self(self): def _read_from_self(self):
try: while True:
self._ssock.recv(1) try:
except (BlockingIOError, InterruptedError): data = self._ssock.recv(4096)
pass if not data:
break
except InterruptedError:
continue
except BlockingIOError:
break
def _write_to_self(self): def _write_to_self(self):
# This may be called from a different thread, possibly after # This may be called from a different thread, possibly after