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-rw-r--r--mail/src/leap/mail/incoming/service.py11
1 files changed, 10 insertions, 1 deletions
diff --git a/mail/src/leap/mail/incoming/service.py b/mail/src/leap/mail/incoming/service.py
index c98e639..ec85eed 100644
--- a/mail/src/leap/mail/incoming/service.py
+++ b/mail/src/leap/mail/incoming/service.py
@@ -32,6 +32,7 @@ from urlparse import urlparse
from twisted.application.service import Service
from twisted.python import log
+from twisted.python.failure import Failure
from twisted.internet import defer, reactor
from twisted.internet.task import LoopingCall
from twisted.internet.task import deferLater
@@ -183,13 +184,21 @@ class IncomingMail(Service):
def startService(self):
"""
Starts a loop to fetch mail.
+
+ :returns: A Deferred whose callback will be invoked with
+ the LoopingCall instance when loop.stop is called, or
+ whose errback will be invoked when the function raises an
+ exception or returned a deferred that has its errback
+ invoked.
"""
Service.startService(self)
if self._loop is None:
self._loop = LoopingCall(self.fetch)
- return self._loop.start(self._check_period)
+ stop_deferred = self._loop.start(self._check_period)
+ return stop_deferred
else:
logger.warning("Tried to start an already running fetching loop.")
+ return defer.fail(Failure('Already running loop.'))
def stopService(self):
"""