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remove unnecessary copies when only one handler matches. This was taking up ~ 15% of CPU on moderate load.

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This commit is contained in:
Vijay Pandurangan 2011-11-19 15:59:38 -08:00
parent 6f3cc77bb5
commit 48af3d3322
2 changed files with 23 additions and 18 deletions
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2
sleekxmpp/basexmpp.py
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@ -246,7 +246,7 @@ class BaseXMPP(XMLStream):
spec = "(RFC-%s) " % self.plugin[plugin].rfc
desc = (spec, self.plugin[plugin].description)
log.debug("Loaded Plugin %s%s" , desc)
log.debug("Loaded Plugin %s" , desc)
except:
log.exception("Unable to load plugin: %s", plugin)

39
sleekxmpp/xmlstream/xmlstream.py
View file

@ -873,20 +873,25 @@ class XMLStream(object):
event queue. All event handlers will run in the
same thread.
"""
for handler in self.__event_handlers.get(name, []):
handlers = self.__event_handlers.get(name, [])
for handler in handlers:
#TODO: Data should not be copied, but should be read only,
# but this might break current code so it's left for future.
out_data = copy.copy(data) if len(handlers) > 1 else data
old_exception = getattr(data, 'exception', None)
if direct:
try:
handler[0](copy.copy(data))
handler[0](out_data)
except Exception as e:
error_msg = 'Error processing event handler: %s'
log.exception(error_msg , str(handler[0]))
if hasattr(data, 'exception'):
data.exception(e)
if old_exception:
old_exception(e)
else:
self.exception(e)
else:
self.event_queue.put(('event', handler, copy.copy(data)))
self.event_queue.put(('event', handler, out_data))
if handler[2]:
# If the handler is disposable, we will go ahead and
# remove it now instead of waiting for it to be
@ -1201,17 +1206,17 @@ class XMLStream(object):
# to run "in stream" will be executed immediately; the rest will
# be queued.
unhandled = True
for handler in self.__handlers:
if handler.match(stanza):
stanza_copy = copy.copy(stanza)
handler.prerun(stanza_copy)
self.event_queue.put(('stanza', handler, stanza_copy))
try:
if handler.check_delete():
self.__handlers.remove(handler)
except:
pass # not thread safe
unhandled = False
matched_handlers = filter(lambda h: h.match(stanza), self.__handlers)
for handler in matched_handlers:
stanza_copy = copy.copy(stanza) if len(matched_handlers) > 1 else stanza
handler.prerun(stanza_copy)
self.event_queue.put(('stanza', handler, stanza_copy))
try:
if handler.check_delete():
self.__handlers.remove(handler)
except:
pass # not thread safe
unhandled = False
# Some stanzas require responses, such as Iq queries. A default
# handler will be executed immediately for this case.