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authorLance Stout <lancestout@gmail.com>2012-03-12 16:19:18 -0700
committerLance Stout <lancestout@gmail.com>2012-03-12 16:19:18 -0700
commit9f43d31bf511e0917f11b7edcac93921100383b7 (patch)
tree64084952cc2a8fc147479aae05b56693ed90e751 /sleekxmpp/xmlstream
parenta318beded4e7402b5855378a57e867362ce3e1af (diff)
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Add setting for maximum number of reconnection attempts.
Setting self.reconnect_max_attempts to a non-None value will limit the number of times a connection attempt will be made before quiting and raising a 'connection_failed' event.
Diffstat (limited to 'sleekxmpp/xmlstream')
-rw-r--r--sleekxmpp/xmlstream/xmlstream.py66
1 files changed, 47 insertions, 19 deletions
diff --git a/sleekxmpp/xmlstream/xmlstream.py b/sleekxmpp/xmlstream/xmlstream.py
index 81ba2305..f3e3faa8 100644
--- a/sleekxmpp/xmlstream/xmlstream.py
+++ b/sleekxmpp/xmlstream/xmlstream.py
@@ -81,6 +81,12 @@ SSL_RETRY_MAX = 10
#: Maximum time to delay between connection attempts is one hour.
RECONNECT_MAX_DELAY = 600
+#: Maximum number of attempts to connect to the server before quitting
+#: and raising a 'connect_failed' event. Setting this to ``None`` will
+#: allow infinite reconnection attempts, and using ``0`` will disable
+#: reconnections. Defaults to ``None``.
+RECONNECT_MAX_ATTEMPTS = None
+
log = logging.getLogger(__name__)
@@ -157,6 +163,12 @@ class XMLStream(object):
#: Maximum time to delay between connection attempts is one hour.
self.reconnect_max_delay = RECONNECT_MAX_DELAY
+ #: Maximum number of attempts to connect to the server before
+ #: quitting and raising a 'connect_failed' event. Setting to
+ #: ``None`` allows infinite reattempts, while setting it to ``0``
+ #: will disable reconnection attempts. Defaults to ``None``.
+ self.reconnect_max_attempts = RECONNECT_MAX_ATTEMPTS
+
#: The time in seconds to delay between attempts to resend data
#: after an SSL error.
self.ssl_retry_max = SSL_RETRY_MAX
@@ -383,13 +395,21 @@ class XMLStream(object):
if use_tls is not None:
self.use_tls = use_tls
+
# Repeatedly attempt to connect until a successful connection
# is established.
+ attempts = self.reconnect_max_attempts
connected = self.state.transition('disconnected', 'connected',
func=self._connect)
while reattempt and not connected and not self.stop.is_set():
connected = self.state.transition('disconnected', 'connected',
func=self._connect)
+ if not connected:
+ if attempts is not None:
+ attempts -= 1
+ if attempts <= 0:
+ self.event('connection_failed', direct=True)
+ return False
return connected
def _connect(self):
@@ -399,6 +419,24 @@ class XMLStream(object):
self.address = self.pick_dns_answer(self.default_domain,
self.address[1])
+ if self.reconnect_delay is None:
+ delay = 1.0
+ else:
+ delay = min(self.reconnect_delay * 2, self.reconnect_max_delay)
+ delay = random.normalvariate(delay, delay * 0.1)
+ log.debug('Waiting %s seconds before connecting.', delay)
+ elapsed = 0
+ try:
+ while elapsed < delay and not self.stop.is_set():
+ time.sleep(0.1)
+ elapsed += 0.1
+ except KeyboardInterrupt:
+ self.stop.set()
+ return False
+ except SystemExit:
+ self.stop.set()
+ return False
+
try:
# Look for IPv6 addresses, in addition to IPv4
for res in Socket.getaddrinfo(self.address[0],
@@ -415,29 +453,11 @@ class XMLStream(object):
except Socket.gaierror:
log.warning("Socket could not be opened: no connectivity" + \
" or wrong IP versions.")
- self.stop.set()
+ self.reconnect_delay = delay
return False
self.configure_socket()
- if self.reconnect_delay is None:
- delay = 1.0
- else:
- delay = min(self.reconnect_delay * 2, self.reconnect_max_delay)
- delay = random.normalvariate(delay, delay * 0.1)
- log.debug('Waiting %s seconds before connecting.', delay)
- elapsed = 0
- try:
- while elapsed < delay and not self.stop.is_set():
- time.sleep(0.1)
- elapsed += 0.1
- except KeyboardInterrupt:
- self.stop.set()
- return False
- except SystemExit:
- self.stop.set()
- return False
-
if self.use_proxy:
connected = self._connect_proxy()
if not connected:
@@ -618,6 +638,8 @@ class XMLStream(object):
self.state.transition('connected', 'disconnected', wait=2.0,
func=self._disconnect, args=(True,))
+ attempts = self.reconnect_max_attempts
+
log.debug("connecting...")
connected = self.state.transition('disconnected', 'connected',
wait=2.0, func=self._connect)
@@ -625,6 +647,12 @@ class XMLStream(object):
connected = self.state.transition('disconnected', 'connected',
wait=2.0, func=self._connect)
connected = connected or self.state.ensure('connected')
+ if not connected:
+ if attempts is not None:
+ attempts -= 1
+ if attempts <= 0:
+ self.event('connection_failed', direct=True)
+ return False
return connected
def set_socket(self, socket, ignore=False):