func reportAgentStatus(interval time.Duration) {
	hostname, err := g.Hostname()
	if err != nil {
		hostname = fmt.Sprintf("error:%s", err.Error())
	}

	for {
		req := model.AgentReportRequest{
			Hostname:     hostname,
			IP:           g.IP(),
			AgentVersion: g.VERSION,
		}

		var resp model.SimpleRpcResponse
		err = g.HbsClient.Call("Agent.ReportStatus", req, &resp)
		if err != nil || resp.Code != 0 {
			log.Println("call Agent.ReportStatus fail:", err, "Request:", req, "Response:", resp)
		}

		time.Sleep(interval)
	}
}
func syncBuiltinMetrics() {

	var timestamp int64 = -1
	var checksum string = "nil"

	duration := time.Duration(g.Config().Heartbeat.Interval) * time.Second

	for {
	REST:
		time.Sleep(duration)

		var ports = []int64{}
		var procs = make(map[string]map[int]string)

		hostname, err := g.Hostname()
		if err != nil {
			goto REST
		}

		req := model.AgentHeartbeatRequest{
			Hostname: hostname,
			Checksum: checksum,
		}

		var resp model.BuiltinMetricResponse
		err = g.HbsClient.Call("Agent.BuiltinMetrics", req, &resp)
		if err != nil {
			log.Println("ERROR:", err)
			goto REST
		}

		if resp.Timestamp <= timestamp {
			goto REST
		}

		if resp.Checksum == checksum {
			goto REST
		}

		timestamp = resp.Timestamp
		checksum = resp.Checksum

		for _, metric := range resp.Metrics {
			if metric.Metric == "net.port.listen" {
				if !strings.Contains(metric.Tags, "=") {
					// illegal
					continue
				}

				if port, err := strconv.ParseInt(metric.Tags[5:], 10, 64); err == nil {
					ports = append(ports, port)
				}

				continue
			}

			if metric.Metric == "proc.num" {
				arr := strings.Split(metric.Tags, ",")

				tmpMap := make(map[int]string)

				for i := 0; i < len(arr); i++ {
					if strings.HasPrefix(arr[i], "name=") {
						tmpMap[1] = arr[i][5:]
					} else if strings.HasPrefix(arr[i], "cmdline=") {
						tmpMap[2] = arr[i][8:]
					}
				}

				procs[metric.Tags] = tmpMap
			}
		}

		g.SetReportPorts(ports)
		g.SetReportProcs(procs)

	}
}