Fix bridging thread leak.

The bridge thread was exiting but was never being
reaped using pthread_join(). This has been fixed now
by calling pthread_join() in ast_bridge_destroy().

(closes issue ASTERISK-19834)
Reported by Marcus Hunger

Review: https://reviewboard.asterisk.org/r/2012
........

Merged revisions 369708 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 369709 from http://svn.asterisk.org/svn/asterisk/branches/10

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@369710 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/main/bridging.c b/main/bridging.c
index 8bb13f9..465d033 100644 (file)
--- a/main/bridging.c
+++ b/main/bridging.c
@@ -234,9 +234,6 @@ static void bridge_check_dissolve(struct ast_bridge *bridge, struct ast_bridge_c
                }
        }
 
                }
        }
 

-       /* Since all the channels are going away let's go ahead and stop our on thread */
-       bridge->stop = 1;
-

        return;
 }
 
        return;
 }
 

@@ -544,9 +541,14 @@ int ast_bridge_destroy(struct ast_bridge *bridge)
                bridge->callid = ast_callid_unref(bridge->callid);
        }
 
                bridge->callid = ast_callid_unref(bridge->callid);
        }
 

-       bridge->stop = 1;
-
-       bridge_poke(bridge);
+       if (bridge->thread != AST_PTHREADT_NULL) {
+               pthread_t thread = bridge->thread;
+               bridge->stop = 1;
+               bridge_poke(bridge);
+               ao2_unlock(bridge);
+               pthread_join(thread, NULL);
+               ao2_lock(bridge);
+       }

 
        ast_debug(1, "Telling all channels in bridge %p to end and leave the party\n", bridge);
 
 
        ast_debug(1, "Telling all channels in bridge %p to end and leave the party\n", bridge);