Author: coreyfarrell
Date: Thu Mar 26 12:46:46 2015
New Revision: 433469

URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=433469
Log:
res_pjsip: Enable unload of all modules at shutdown.

* Move most of res_pjsip:module_unload to unload_pjsip to resolve crashes
  caused by running PJSIP functions from non-PJSIP threads.
* Remove call to pjsip_endpt_destroy(ast_pjsip_endpoint), it was causing
  crashes in some cases.  In theory pj_shutdown() should take care of this.
* Mark res_pjsip_keepalive and res_pjsip_session as allowed to unload at
  shutdown.
* Resolve leaked config global in res_pjsip_notify.
* Unregister pubsub pjsip service module.
* Implement cleanup for res_pjsip_session.

ASTERISK-24731 #close
Reported by: Corey Farrell
Review: https://reviewboard.asterisk.org/r/4498/

Modified:
    branches/13/res/res_pjsip.c
    branches/13/res/res_pjsip_keepalive.c
    branches/13/res/res_pjsip_notify.c
    branches/13/res/res_pjsip_pubsub.c
    branches/13/res/res_pjsip_session.c

Modified: branches/13/res/res_pjsip.c
URL: 
http://svnview.digium.com/svn/asterisk/branches/13/res/res_pjsip.c?view=diff&rev=433469&r1=433468&r2=433469
==============================================================================
--- branches/13/res/res_pjsip.c (original)
+++ branches/13/res/res_pjsip.c Thu Mar 26 12:46:46 2015
@@ -3514,21 +3514,6 @@
 static int unload_pjsip(void *data)
 {
        ast_cli_unregister_multiple(cli_commands, ARRAY_LEN(cli_commands));
-       if (memory_pool) {
-               pj_pool_release(memory_pool);
-               memory_pool = NULL;
-       }
-       if (ast_pjsip_endpoint) {
-               pjsip_endpt_destroy(ast_pjsip_endpoint);
-               ast_pjsip_endpoint = NULL;
-       }
-       pj_caching_pool_destroy(&caching_pool);
-       pj_shutdown();
-       return 0;
-}
-
-static int unload_module(void)
-{
        ast_res_pjsip_cleanup_options_handling();
        internal_sip_destroy_outbound_authentication();
        ast_sip_destroy_distributor();
@@ -3539,6 +3524,18 @@
        if (monitor_thread) {
                stop_monitor_thread();
        }
+       if (memory_pool) {
+               pj_pool_release(memory_pool);
+               memory_pool = NULL;
+       }
+       ast_pjsip_endpoint = NULL;
+       pj_caching_pool_destroy(&caching_pool);
+       pj_shutdown();
+       return 0;
+}
+
+static int unload_module(void)
+{
        /* The thread this is called from cannot call PJSIP/PJLIB functions,
         * so we have to push the work to the threadpool to handle
         */

Modified: branches/13/res/res_pjsip_keepalive.c
URL: 
http://svnview.digium.com/svn/asterisk/branches/13/res/res_pjsip_keepalive.c?view=diff&rev=433469&r1=433468&r2=433469
==============================================================================
--- branches/13/res/res_pjsip_keepalive.c (original)
+++ branches/13/res/res_pjsip_keepalive.c Thu Mar 26 12:46:46 2015
@@ -244,7 +244,7 @@
 
        ast_sorcery_observer_add(ast_sip_get_sorcery(), "global", 
&keepalive_global_observer);
        ast_sorcery_reload_object(ast_sip_get_sorcery(), "global");
-       ast_module_ref(ast_module_info->self);
+       ast_module_shutdown_ref(ast_module_info->self);
        return AST_MODULE_LOAD_SUCCESS;
 }
 

Modified: branches/13/res/res_pjsip_notify.c
URL: 
http://svnview.digium.com/svn/asterisk/branches/13/res/res_pjsip_notify.c?view=diff&rev=433469&r1=433468&r2=433469
==============================================================================
--- branches/13/res/res_pjsip_notify.c (original)
+++ branches/13/res/res_pjsip_notify.c Thu Mar 26 12:46:46 2015
@@ -1021,6 +1021,7 @@
        ast_manager_unregister("PJSIPNotify");
        ast_cli_unregister_multiple(cli_options, ARRAY_LEN(cli_options));
        aco_info_destroy(&notify_cfg);
+       ao2_global_obj_release(globals);
 
        return 0;
 }

Modified: branches/13/res/res_pjsip_pubsub.c
URL: 
http://svnview.digium.com/svn/asterisk/branches/13/res/res_pjsip_pubsub.c?view=diff&rev=433469&r1=433468&r2=433469
==============================================================================
--- branches/13/res/res_pjsip_pubsub.c (original)
+++ branches/13/res/res_pjsip_pubsub.c Thu Mar 26 12:46:46 2015
@@ -4286,6 +4286,7 @@
        ast_manager_unregister(AMI_SHOW_SUBSCRIPTIONS_INBOUND);
        ast_manager_unregister("PJSIPShowResourceLists");
 
+       ast_sip_unregister_service(&pubsub_module);
        if (sched) {
                ast_sched_context_destroy(sched);
        }

Modified: branches/13/res/res_pjsip_session.c
URL: 
http://svnview.digium.com/svn/asterisk/branches/13/res/res_pjsip_session.c?view=diff&rev=433469&r1=433468&r2=433469
==============================================================================
--- branches/13/res/res_pjsip_session.c (original)
+++ branches/13/res/res_pjsip_session.c Thu Mar 26 12:46:46 2015
@@ -2641,14 +2641,18 @@
        }
        ast_sip_register_service(&session_reinvite_module);
 
-       ast_module_ref(ast_module_info->self);
+       ast_module_shutdown_ref(ast_module_info->self);
 
        return AST_MODULE_LOAD_SUCCESS;
 }
 
 static int unload_module(void)
 {
-       /* This will never get called as this module can't be unloaded */
+       ast_sip_unregister_service(&session_reinvite_module);
+       ast_sip_unregister_service(&session_module);
+       ast_sorcery_delete(ast_sip_get_sorcery(), nat_hook);
+       ao2_cleanup(nat_hook);
+       ao2_cleanup(sdp_handlers);
        return 0;
 }
 


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