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Merge major changes to the way device state is passed around Asterisk. The two

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places that cared about device states were app_queue and the hint code in pbx.c.
The changes include converting it to use the Asterisk event system, as well as
other efficiency improvements.
 * app_queue: This module used to register a callback into devicestate.c to
   monitor device state changes.  Now, it is just a subscriber to Asterisk
   events with the type, device state.
 * pbx.c hints: Previously, the device state processing thread in devicestate.c
   would call ast_hint_state_changed() each time the state of a device changed.
   Then, that code would go looking for all the hints that monitor that device,
   and call their callbacks.  All of this blocked the device state processing
   thread.  Now, the hint code is a subscriber of Asterisk events with the
   type, device state.  Furthermore, when this code receives a device state
   change event, it queues it up to be processed by another thread so that it
   doesn't block one of the event processing threads.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@66958 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant
2007-06-01 23:34:43 +00:00
parent c9cf12b675
commit 605368649e
8 changed files with 174 additions and 90 deletions
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include/asterisk.h
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@@ -87,6 +87,7 @@ void dnsmgr_start_refresh(void); /*!< Provided by dnsmgr.c */
int dnsmgr_reload(void); /*!< Provided by dnsmgr.c */
void threadstorage_init(void); /*!< Provided by threadstorage.c */
void ast_event_init(void); /*!< Provided by event.c */
int ast_device_state_engine_init(void); /*!< Provided by devicestate.c */
/* Many headers need 'ast_channel' to be defined */
struct ast_channel;