res_pjsip_mwi: fix unsolicited mwi blocks PJSIP stack

The PJSIP taskprocessors could be overflowed on startup
if there are many (thousands) realtime endpoints
configured with unsolicited mwi.
The PJSIP stack could be totally unresponsive for a few minutes
after boot completed.

This patch creates a separate PJSIP serializers pool for mwi
and makes unsolicited mwi use serializers from this pool.
This patch also adds 2 new global options to tune taskprocessor
alert levels: 'mwi_tps_queue_high' and 'mwi_tps_queue_low'.

This patch also adds new global option 'mwi_disable_initial_unsolicited'
to disable sending unsolicited mwi to all endpoints on startup.
If disabled then unsolicited mwi will start processing
on next endpoint's contact update.

ASTERISK-26230 #close

Change-Id: I4c8ecb82c249eb887930980a800c9f87f28f861a
This commit is contained in:
Alexei Gradinari
2016-08-08 13:53:32 -04:00
parent bf21359292
commit a06a1af0eb
7 changed files with 333 additions and 6 deletions

View File

@@ -2462,6 +2462,32 @@ int ast_sip_register_supplement(struct ast_sip_supplement *supplement);
*/
void ast_sip_unregister_supplement(struct ast_sip_supplement *supplement);
/*!
* \brief Retrieve the global MWI taskprocessor high water alert trigger level.
*
* \since 13.12.0
*
* \retval the system MWI taskprocessor high water alert trigger level
*/
unsigned int ast_sip_get_mwi_tps_queue_high(void);
/*!
* \brief Retrieve the global MWI taskprocessor low water clear alert level.
*
* \since 13.12.0
*
* \retval the system MWI taskprocessor low water clear alert level
*/
int ast_sip_get_mwi_tps_queue_low(void);
/*!
* \brief Retrieve the global setting 'disable sending unsolicited mwi on startup'.
* \since 13.12.0
*
* \retval non zero if disable.
*/
unsigned int ast_sip_get_mwi_disable_initial_unsolicited(void);
/*!
* \brief Retrieve the system debug setting (yes|no|host).
*