Send a "call_hangup" to outbound/handlecall sessions when the relevant channel is hungup

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12635 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/event_handlers/mod_erlang_event/mod_erlang_event.c

@@ -524,6 +524,7 @@ static switch_status_t check_attached_sessions(listener_t *listener)
 			switch_mutex_lock(listener->sock_mutex);
 			ei_sendto(listener->ec, listener->sockfd, &sp->process, &ebuf);
 			switch_mutex_unlock(listener->sock_mutex);
+			ei_x_free(&ebuf);
 
 			/* event is a hangup, so this session can be removed */
 			if (pevent->event_id == SWITCH_EVENT_CHANNEL_HANGUP) {
@@ -535,20 +536,24 @@ static switch_status_t check_attached_sessions(listener_t *listener)
 				else
 					listener->session_list = sp->next;
 
-
 				switch_channel_clear_flag(switch_core_session_get_channel(sp->session), CF_CONTROLLED);
 				/* this allows the application threads to exit */
 				switch_clear_flag_locked(sp, LFLAG_SESSION_ALIVE);
 				switch_core_session_rwunlock(sp->session);
 				removed = 1;
 
+				ei_x_new_with_version(&ebuf);
+				ei_x_encode_atom(&ebuf, "call_hangup");
+				switch_mutex_lock(listener->sock_mutex);
+				ei_sendto(listener->ec, listener->sockfd, &sp->process, &ebuf);
+				switch_mutex_unlock(listener->sock_mutex);
+				ei_x_free(&ebuf);
+
 				/* TODO
 				   if this listener was created outbound, and the last session has been detached
 				   should the listener also exit? Does it matter?
 				 */
 			}
-			
-			ei_x_free(&ebuf);
 			switch_event_destroy(&pevent);
 		}
 		if (!removed)