David M. Lee 516dbe86a0 Remove dispatch object allocation from Stasis publishing ...

While looking for areas for performance improvement, I realized that an
unused feature in Stasis was negatively impacting performance.

When a message is sent to a subscriber, a dispatch object is allocated
for the dispatch, containing the topic the message was published to, the
subscriber the message is being sent to, and the message itself.

The topic is actually unused by any subscriber in Asterisk today. And
the subscriber is associated with the taskprocessor the message is being
dispatched to.

First, this patch removes the unused topic parameter from Stasis
subscription callbacks.

Second, this patch introduces the concept of taskprocessor local data,
data that may be set on a taskprocessor and provided along with the data
pointer when a task is pushed using the ast_taskprocessor_push_local()
call. This allows the task to have both data specific to that
taskprocessor, in addition to data specific to that invocation.

With those two changes, the dispatch object can be removed completely,
and the message is simply refcounted and sent directly to the
taskprocessor.

Review: https://reviewboard.asterisk.org/r/2884/


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/12@400181 65c4cc65-6c06-0410-ace0-fbb531ad65f3

2013-09-30 18:48:57 +00:00

..

asterisk

Remove dispatch object allocation from Stasis publishing

2013-09-30 18:48:57 +00:00

solaris-compat

fix the provided unsetenv for solaris to return an int like it's supposed to

2006-03-29 04:14:12 +00:00

asterisk.h

Move channel driver Registry manager events to core.

2013-07-08 14:42:57 +00:00

jitterbuf.h

incorporates r159808 from branches/1.4:

2008-11-29 17:57:39 +00:00