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IRCNetwork: do not break on socket BlockingIOError

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On non-blocking sockets, recv() raises BlockingIOError instead of blocking when there's no data to be read.
The correct behaviour is to wait and try again instead of breaking the connection.
This commit is contained in:
James Lu 2018-03-01 12:52:41 -05:00
parent e8e26daf05
commit 6a90e99de4
1 changed files with 6 additions and 0 deletions
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6
classes.py
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@ -1254,6 +1254,7 @@ utils._proto_utils_class = PyLinkNetworkCoreWithUtils # Used by compatibility w
class IRCNetwork(PyLinkNetworkCoreWithUtils):
S2S_BUFSIZE = 510
SOCKET_REPOLL_WAIT = 0.5
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
@ -1512,6 +1513,11 @@ class IRCNetwork(PyLinkNetworkCoreWithUtils):
try:
data = self._socket.recv(2048)
except BlockingIOError:
log.debug('(%s) No data to read, trying again later...', self.name)
if self._aborted.wait(self.SOCKET_REPOLL_WAIT):
break
continue
except OSError:
# Suppress socket read warnings from lingering recv() calls if
# we've been told to shutdown.