slixmpp/sleekxmpp/features/feature_bind/bind.py
Vijay Pandurangan 6f3cc77bb5 This change stops sleekxmpp from spending huge amounts of time unnecessarily computing logging data that may never be used. This is a HUGE performance improvement; in some of my test runs, unnecessary string creation was accounting for > 60% of all CPU time.
Note that using % in a string will _always_ perform the sting substitutions, because the strings are constructed before the function is called. So log.debug('%s' % expensiveoperation()) will take about the same CPU time whether or not the logging level is DEBUG or INFO. if you use , no substitutions are performed unless the string is actually logged
2011-11-19 11:30:44 -08:00

64 lines
1.9 KiB
Python

"""
SleekXMPP: The Sleek XMPP Library
Copyright (C) 2011 Nathanael C. Fritz
This file is part of SleekXMPP.
See the file LICENSE for copying permission.
"""
import logging
from sleekxmpp.stanza import Iq, StreamFeatures
from sleekxmpp.features.feature_bind import stanza
from sleekxmpp.xmlstream import register_stanza_plugin
from sleekxmpp.xmlstream.matcher import *
from sleekxmpp.xmlstream.handler import *
from sleekxmpp.plugins.base import base_plugin
log = logging.getLogger(__name__)
class feature_bind(base_plugin):
def plugin_init(self):
self.name = 'Bind Resource'
self.rfc = '6120'
self.description = 'Resource Binding Stream Feature'
self.stanza = stanza
self.xmpp.register_feature('bind',
self._handle_bind_resource,
restart=False,
order=10000)
register_stanza_plugin(Iq, stanza.Bind)
register_stanza_plugin(StreamFeatures, stanza.Bind)
def _handle_bind_resource(self, features):
"""
Handle requesting a specific resource.
Arguments:
features -- The stream features stanza.
"""
log.debug("Requesting resource: %s" , self.xmpp.boundjid.resource)
iq = self.xmpp.Iq()
iq['type'] = 'set'
iq.enable('bind')
if self.xmpp.boundjid.resource:
iq['bind']['resource'] = self.xmpp.boundjid.resource
response = iq.send(now=True)
self.xmpp.set_jid(response['bind']['jid'])
self.xmpp.bound = True
self.xmpp.features.add('bind')
log.info("Node set to: %s" , self.xmpp.boundjid.full)
if 'session' not in features['features']:
log.debug("Established Session")
self.xmpp.sessionstarted = True
self.xmpp.session_started_event.set()
self.xmpp.event("session_start")