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Change keepalive() to spawn IdleThreads 

This is the commit that enables IDLE support. In order to do this, we
hijack the keepalive method. Instead of just sending NOOPs, it now
sends IDLE and responds accordingly, thanks to the IdleThread class.

This code was originally by James Bunton <jamesbunton@fastmail.fm>.

Signed-off-by: Ethan Glasser-Camp <ethan@betacantrips.com>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
This commit is contained in:
Ethan Glasser-Camp 2011-05-19 15:02:28 -04:00 committed by Nicolas Sebrecht
parent 9fa6bcdf82
commit d47bd1ff89
1 changed files with 13 additions and 18 deletions
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31
offlineimap/imapserver.py
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@ -21,7 +21,6 @@ from offlineimap.ui import getglobalui
from threading import Lock, BoundedSemaphore, Thread, Event, currentThread
from thread import get_ident # python < 2.6 support
import offlineimap.accounts
import time
import hmac
import socket
import base64
@ -330,8 +329,6 @@ class IMAPServer:
self.ui.debug('imap', 'keepalive thread started')
while 1:
self.ui.debug('imap', 'keepalive: top of loop')
time.sleep(timeout)
self.ui.debug('imap', 'keepalive: after wait')
if event.isSet():
self.ui.debug('imap', 'keepalive: event is set; exiting')
return
@ -342,29 +339,27 @@ class IMAPServer:
self.connectionlock.release()
self.ui.debug('imap', 'keepalive: connectionlock released')
threads = []
imapobjs = []
for i in range(numconnections):
self.ui.debug('imap', 'keepalive: processing connection %d of %d' % (i, numconnections))
imapobj = self.acquireconnection()
self.ui.debug('imap', 'keepalive: connection %d acquired' % i)
imapobjs.append(imapobj)
thr = threadutil.ExitNotifyThread(target = imapobj.noop)
thr.setDaemon(1)
thr.start()
threads.append(thr)
if len(self.idlefolders) > i:
idler = IdleThread(self, self.idlefolders[i])
else:
idler = IdleThread(self)
idler.start()
threads.append(idler)
self.ui.debug('imap', 'keepalive: thread started')
self.ui.debug('imap', 'keepalive: waiting for timeout')
event.wait(timeout)
self.ui.debug('imap', 'keepalive: after wait')
self.ui.debug('imap', 'keepalive: joining threads')
for thr in threads:
for idler in threads:
# Make sure all the commands have completed.
thr.join()
self.ui.debug('imap', 'keepalive: releasing connections')
for imapobj in imapobjs:
self.releaseconnection(imapobj)
idler.stop()
idler.join()
self.ui.debug('imap', 'keepalive: bottom of loop')