}

					if n == 0 {
						panic("Received empty packet")
					}
					envelope := new(events.Envelope)
					err = proto.Unmarshal(buffer[0:n], envelope)
					if err != nil {
						panic(err)
					}

					var eventId = envelope.GetEventType().String()

					switch envelope.GetEventType() {
					case events.Envelope_HttpStart:
						eventId += envelope.GetHttpStart().GetPeerType().String()
					case events.Envelope_HttpStop:
						eventId += envelope.GetHttpStop().GetPeerType().String()
					case events.Envelope_Heartbeat:
					default:
						panic("Unexpected message type")

					}

					if envelope.GetOrigin() != origin {
						panic("origin not as expected")
					}

					func() {
						lock.Lock()
						defer lock.Unlock()