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IMAP IDLE cleanup(5): Really discard connections when they are dropped

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Finally, actually discard dropped connections when we detect them as an
imapobj.abort() has been thrown. In this case, invoke releaseconnection
with drop_conn=True.

We don't need the self.aborted attribute to get signified of dropped
connections. An Execption during the noop will do.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
This commit is contained in:
Sebastian Spaeth 2011-09-12 10:37:57 +02:00 committed by Nicolas Sebrecht
parent 59753fc06f
commit ce8471a011
1 changed files with 15 additions and 17 deletions
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26
offlineimap/imapserver.py
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@ -505,18 +505,13 @@ class IdleThread(object):
connections, or c) the standard imaplib IDLE timeout of 29
minutes kicks in."""
result, cb_arg, exc_data = args
if exc_data is None:
if not self.stop_sig.isSet():
if exc_data is None and not self.stop_sig.isSet():
# No Exception, and we are not supposed to stop:
self.needsync = True
self.stop_sig.set()
else:
# We got an "abort" signal.
self.imapaborted = True
self.stop()
self.stop_sig.set() # continue to sync
while not self.stop_sig.isSet():
self.needsync = False
self.imapaborted = False
success = False # successfully selected FOLDER?
while not success:
@ -527,7 +522,7 @@ class IdleThread(object):
if e.severity == OfflineImapError.ERROR.FOLDER_RETRY:
# Connection closed, release connection and retry
self.ui.error(e, exc_info()[2])
self.parent.releaseconnection(imapobj)
self.parent.releaseconnection(imapobj, True)
else:
raise e
else:
@ -539,13 +534,16 @@ class IdleThread(object):
"Sleep until next refresh cycle." % imapobj.identifier)
imapobj.noop()
self.stop_sig.wait() # self.stop() or IDLE callback are invoked
if self.stop_sig.isSet():
# Can't NOOP on a bad connection.
if not self.imapaborted:
try:
# End IDLE mode with noop, imapobj can point to a dropped conn.
imapobj.noop()
# We don't do event.clear() so that we'll fall out
# of the loop next time around.
except imapobj.abort():
self.ui.warn('Attempting NOOP on dropped connection %s' % \
imapobj.identifier)
self.parent.releaseconnection(imapobj, True)
else:
self.parent.releaseconnection(imapobj)
if self.needsync:
# here not via self.stop, but because IDLE responded. Do
# another round and invoke actual syncing.