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Socket: Ensure driver is flagged as disconnected after a socket error.

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Users were occasionally hitting a situation where the socket had errored,
causing a reconnect, but the socket wasn't closed nor the driver marked as
disconnected.  This resulted in run() continuing to try and use the driver,
which would cause another error, schedule another reconnect, log an error, ad
infinitum.

Closes: Sf#2965530

Signed-off-by: James Vega <jamessan@users.sourceforge.net>
(cherry picked from commit a278d17f2b)

Signed-off-by: Daniel Folkinshteyn <nanotube@users.sourceforge.net>
This commit is contained in:
James Vega 2010-05-24 23:36:29 -04:00 committed by Daniel Folkinshteyn
parent bc8457dc90
commit 108f7f2f86
1 changed files with 24 additions and 10 deletions
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34
src/drivers/Socket.py
View File

@ -1,5 +1,6 @@
### ###
# Copyright (c) 2002-2004, Jeremiah Fincher # Copyright (c) 2002-2004, Jeremiah Fincher
# Copyright (c) 2010, James Vega
# All rights reserved. # All rights reserved.
# #
# Redistribution and use in source and binary forms, with or without # Redistribution and use in source and binary forms, with or without
@ -56,8 +57,9 @@ class SocketDriver(drivers.IrcDriver, drivers.ServersMixin):
self.inbuffer = '' self.inbuffer = ''
self.outbuffer = '' self.outbuffer = ''
self.zombie = False self.zombie = False
self.scheduled = None
self.connected = False self.connected = False
self.writeCheckTime = None
self.nextReconnectTime = None
self.resetDelay() self.resetDelay()
# Only connect to non-SSL servers # Only connect to non-SSL servers
if self.networkGroup.get('ssl').value: if self.networkGroup.get('ssl').value:
@ -87,6 +89,11 @@ class SocketDriver(drivers.IrcDriver, drivers.ServersMixin):
# hasn't finished yet. We'll keep track of how many we get. # hasn't finished yet. We'll keep track of how many we get.
if e.args[0] != 11 or self.eagains > 120: if e.args[0] != 11 or self.eagains > 120:
drivers.log.disconnect(self.currentServer, e) drivers.log.disconnect(self.currentServer, e)
try:
self.conn.close()
except:
pass
self.connected = False
self.scheduleReconnect() self.scheduleReconnect()
else: else:
log.debug('Got EAGAIN, current count: %s.', self.eagains) log.debug('Got EAGAIN, current count: %s.', self.eagains)
@ -110,6 +117,11 @@ class SocketDriver(drivers.IrcDriver, drivers.ServersMixin):
self._reallyDie() self._reallyDie()
def run(self): def run(self):
now = time.time()
if self.nextReconnectTime is not None and now > self.nextReconnectTime:
self.reconnect()
elif self.writeCheckTime is not None and now > self.writeCheckTime:
self._checkAndWriteOrReconnect()
if not self.connected: if not self.connected:
# We sleep here because otherwise, if we're the only driver, we'll # We sleep here because otherwise, if we're the only driver, we'll
# spin at 100% CPU while we're disconnected. # spin at 100% CPU while we're disconnected.
@ -137,7 +149,7 @@ class SocketDriver(drivers.IrcDriver, drivers.ServersMixin):
self.reconnect(reset=False, **kwargs) self.reconnect(reset=False, **kwargs)
def reconnect(self, reset=True): def reconnect(self, reset=True):
self.scheduled = None self.nextReconnectTime = None
if self.connected: if self.connected:
drivers.log.reconnect(self.irc.network) drivers.log.reconnect(self.irc.network)
self.conn.close() self.conn.close()
@ -172,13 +184,14 @@ class SocketDriver(drivers.IrcDriver, drivers.ServersMixin):
whenS = log.timestamp(when) whenS = log.timestamp(when)
drivers.log.debug('Connection in progress, scheduling ' drivers.log.debug('Connection in progress, scheduling '
'connectedness check for %s', whenS) 'connectedness check for %s', whenS)
schedule.addEvent(self._checkAndWriteOrReconnect, when) self.writeCheckTime = when
else: else:
drivers.log.connectError(self.currentServer, e) drivers.log.connectError(self.currentServer, e)
self.scheduleReconnect() self.scheduleReconnect()
return return
def _checkAndWriteOrReconnect(self): def _checkAndWriteOrReconnect(self):
self.writeCheckTime = None
drivers.log.debug('Checking whether we are connected.') drivers.log.debug('Checking whether we are connected.')
(_, w, _) = select.select([], [self.conn], [], 0) (_, w, _) = select.select([], [self.conn], [], 0)
if w: if w:
@ -193,18 +206,19 @@ class SocketDriver(drivers.IrcDriver, drivers.ServersMixin):
when = time.time() + self.getDelay() when = time.time() + self.getDelay()
if not world.dying: if not world.dying:
drivers.log.reconnect(self.irc.network, when) drivers.log.reconnect(self.irc.network, when)
if self.scheduled: if self.nextReconnectTime:
drivers.log.error('Scheduling a second reconnect when one is ' drivers.log.error('Updating next reconnect time when one is '
'already scheduled. This is a bug; please ' 'already present. This is a bug; please '
'report it, with an explanation of what caused ' 'report it, with an explanation of what caused '
'this to happen.') 'this to happen.')
schedule.removeEvent(self.scheduled) self.nextReconnectTime = when
self.scheduled = schedule.addEvent(self.reconnect, when)
def die(self): def die(self):
self.zombie = True self.zombie = True
if self.scheduled: if self.nextReconnectTime is not None:
schedule.removeEvent(self.scheduled) self.nextReconnectTime = None
if self.writeCheckTime is not None:
self.writeCheckTime = None
drivers.log.die(self.irc) drivers.log.die(self.irc)
def _reallyDie(self): def _reallyDie(self):