fix sofia (part 1)

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3856 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_core.c

@@ -539,10 +539,11 @@ SWITCH_DECLARE(const switch_state_handler_table_t *) switch_core_get_state_handl
 
 SWITCH_DECLARE(switch_status_t) switch_core_session_read_lock(switch_core_session_t *session)
 {
-	switch_status_t status = SWITCH_STATUS_SUCCESS;
-
+	switch_status_t status = SWITCH_STATUS_FALSE;
 
+    if (session->rwlock) {
         status = (switch_status_t) switch_thread_rwlock_tryrdlock(session->rwlock);
+	}
 
 	return status;
 }

src/switch_ivr.c

@@ -1940,6 +1940,8 @@ static void *audio_bridge_thread(switch_thread_t *thread, void *obj)
 		}
 	}
 
+    switch_core_session_kill_channel(session_b, SWITCH_SIG_BREAK);
+	
 	msg.message_id = SWITCH_MESSAGE_INDICATE_UNBRIDGE;
 	msg.from = __FILE__;
 	switch_core_session_receive_message(session_a, &msg);
@@ -3304,18 +3306,17 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_multi_threaded_bridge(switch_core_ses
 				switch_event_fire(&event);
 			}
 
-
-			if (switch_channel_get_state(caller_channel) != CS_EXECUTE && !switch_channel_test_flag(caller_channel, CF_TRANSFER)) {
-				switch_channel_hangup(caller_channel, SWITCH_CAUSE_NORMAL_CLEARING);
-			}
-
             if (switch_channel_test_flag(caller_channel, CF_TRANSFER) && !switch_channel_test_flag(peer_channel, CF_TRANSFER)) {
-                switch_channel_hangup(peer_channel, SWITCH_CAUSE_NORMAL_CLEARING);
+                //switch_channel_hangup(peer_channel, SWITCH_CAUSE_NORMAL_CLEARING);
+                switch_yield(2000000);
             }
+
             if (!switch_channel_test_flag(caller_channel, CF_TRANSFER) && switch_channel_test_flag(peer_channel, CF_TRANSFER)) {
-                switch_channel_hangup(caller_channel, SWITCH_CAUSE_NORMAL_CLEARING);
+                //switch_channel_hangup(caller_channel, SWITCH_CAUSE_NORMAL_CLEARING);
+                switch_yield(2000000);
             }
 
+
             this_audio_thread->objs[0] = NULL;
 			this_audio_thread->objs[1] = NULL;
 			this_audio_thread->objs[2] = NULL;