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feature: add handling of lost/timed out packets to ping example app

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This commit is contained in:
Florian Loch 2022-02-28 14:40:33 +01:00
parent 8ef5fddf90
commit bbd78f8398
1 changed files with 7 additions and 2 deletions
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9
cmd/ping/ping.go
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@ -7,6 +7,8 @@ import (
"os/signal" "os/signal"
"time" "time"
"github.com/google/uuid"
"github.com/go-ping/ping" "github.com/go-ping/ping"
) )
@ -77,10 +79,13 @@ func main() {
fmt.Printf("%d bytes from %s: icmp_seq=%d time=%v ttl=%v (DUP!)\n", fmt.Printf("%d bytes from %s: icmp_seq=%d time=%v ttl=%v (DUP!)\n",
pkt.Nbytes, pkt.IPAddr, pkt.Seq, pkt.Rtt, pkt.Ttl) pkt.Nbytes, pkt.IPAddr, pkt.Seq, pkt.Rtt, pkt.Ttl)
} }
pinger.OnLost = func(_ uuid.UUID, sequenceID int, noResponseAfter time.Duration) {
fmt.Printf("Request with sequence ID %d timed out, still no response after %d ms\n", sequenceID, noResponseAfter.Milliseconds())
}
pinger.OnFinish = func(stats *ping.Statistics) { pinger.OnFinish = func(stats *ping.Statistics) {
fmt.Printf("\n--- %s ping statistics ---\n", stats.Addr) fmt.Printf("\n--- %s ping statistics ---\n", stats.Addr)
fmt.Printf("%d packets transmitted, %d packets received, %d duplicates, %v%% packet loss\n", fmt.Printf("%d packets transmitted, %d packets received, %d duplicates, %d packets assumed lost, %d packets still awaited, %v%% packet loss\n",
stats.PacketsSent, stats.PacketsRecv, stats.PacketsRecvDuplicates, stats.PacketLoss) stats.PacketsSent, stats.PacketsRecv, stats.PacketsRecvDuplicates, stats.PacketsLost, stats.PacketsSent-stats.PacketsLost-stats.PacketsRecv, stats.PacketLoss)
fmt.Printf("round-trip min/avg/max/stddev = %v/%v/%v/%v\n", fmt.Printf("round-trip min/avg/max/stddev = %v/%v/%v/%v\n",
stats.MinRtt, stats.AvgRtt, stats.MaxRtt, stats.StdDevRtt) stats.MinRtt, stats.AvgRtt, stats.MaxRtt, stats.StdDevRtt)
} }