Added max rtt and max avg rtt to ping check

check/check_ping.go

@@ -14,6 +14,8 @@ const (
 	TK_TIMEOUT
 	TK_INTERVAL
 	TK_MAXPACKETLOSS
+	TK_MAXRTT
+	TK_MAXAVGRTT
 )
 
 type CheckPing struct {
@@ -23,6 +25,8 @@ type CheckPing struct {
 	Timeout       time.Duration
 	Interval      time.Duration
 	MaxPacketLoss float64
+	MaxRTT        time.Duration
+	MaxAvgRTT     time.Duration
 	state         int
 }
 
@@ -63,11 +67,22 @@ func (c *CheckPing) Check(debuglvl int) error {
 
 	if debuglvl > 0 {
 		fmt.Printf("Packet loss: %.f%%\n", stats.PacketLoss)
+		fmt.Printf("Max RTT: %s\n", stats.MaxRtt.String())
+		fmt.Printf("Max Configured RTT: %s\n", c.MaxRTT.String())
+		fmt.Printf("Average RTT: %s\n", stats.AvgRtt.String())
 	}
 
 	if stats.PacketLoss > c.MaxPacketLoss {
 		return fmt.Errorf("ping packet loss exceeds max")
 	}
+
+	if c.MaxRTT > 0 && stats.MaxRtt > c.MaxRTT {
+		return fmt.Errorf("ping rtt exceeds max")
+	}
+
+	if c.MaxAvgRTT > 0 && stats.AvgRtt > c.MaxAvgRTT {
+		return fmt.Errorf("ping average rtt exceeds max")
+	}
 	return nil
 }
 
@@ -84,6 +99,10 @@ func (c *CheckPing) Parse(tk string) (bool, error) {
 			c.state = TK_INTERVAL
 		case "maxpacketloss":
 			c.state = TK_MAXPACKETLOSS
+		case "maxrtt":
+			c.state = TK_MAXRTT
+		case "maxavgrtt":
+			c.state = TK_MAXAVGRTT
 		default:
 			return false, nil
 		}
@@ -116,6 +135,20 @@ func (c *CheckPing) Parse(tk string) (bool, error) {
 		}
 		c.state = TK_NONE
 
+	case TK_MAXRTT:
+		c.MaxRTT, err = time.ParseDuration(tk)
+		if err != nil {
+			return false, fmt.Errorf("invalid maxrtt \"%s\"", tk)
+		}
+		c.state = TK_NONE
+
+	case TK_MAXAVGRTT:
+		c.MaxAvgRTT, err = time.ParseDuration(tk)
+		if err != nil {
+			return false, fmt.Errorf("invalid maxavgrtt \"%s\"", tk)
+		}
+		c.state = TK_NONE
+
 	default:
 		return false, fmt.Errorf("invalid state in check_ping")
 	}