Print error message if session for a channel could not be found

git-svn-id: http://svn.openzap.org/svn/openzap/trunk@827 a93c3328-9c30-0410-af19-c9cd2b2d52af

libs/openzap/mod_openzap/mod_openzap.c

@@ -1678,6 +1678,9 @@ static ZIO_SIGNAL_CB_FUNCTION(on_clear_channel_signal)
 					zap_log(ZAP_LOG_ERROR, "TONE ERROR\n");
 				}
 				switch_core_session_rwunlock(session);
+			} else {
+				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Session for channel %d:%d not found\n",
+					sigmsg->channel->span_id, sigmsg->channel->chan_id);
 			}
 		}
     case ZAP_SIGEVENT_PROGRESS_MEDIA:
@@ -1686,6 +1689,9 @@ static ZIO_SIGNAL_CB_FUNCTION(on_clear_channel_signal)
 				channel = switch_core_session_get_channel(session);
 				switch_channel_mark_pre_answered(channel);
 				switch_core_session_rwunlock(session);
+			} else {
+				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Session for channel %d:%d not found\n",
+					sigmsg->channel->span_id, sigmsg->channel->chan_id);
 			}
 		}
 		break;
@@ -1695,6 +1701,9 @@ static ZIO_SIGNAL_CB_FUNCTION(on_clear_channel_signal)
 				channel = switch_core_session_get_channel(session);
 				switch_channel_mark_ring_ready(channel);
 				switch_core_session_rwunlock(session);
+			} else {
+				switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Session for channel %d:%d not found\n",
+					sigmsg->channel->span_id, sigmsg->channel->chan_id);
 			}
 		}
 		break;