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tcpdelay
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Add option --relative

This commit is contained in:
Peter J. Holzer 2020-12-20 15:37:30 +01:00 committed by Peter J. Holzer
parent 3d9133f93f
commit dbf10affb4
1 changed files with 7 additions and 1 deletions
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8
tcpdelay.go
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@ -18,6 +18,7 @@ var (
client = app.Command("client", "Request measurement") client = app.Command("client", "Request measurement")
serverAddress = client.Arg("address", "Address:port to connect to").String() serverAddress = client.Arg("address", "Address:port to connect to").String()
relativeTimes = client.Flag("relative", "Print times relative to start").Bool()
) )
func tcpdelayServer() { func tcpdelayServer() {
@ -56,6 +57,7 @@ func tcpdelayServer() {
} }
func tcpdelayClient() { func tcpdelayClient() {
t0 := time.Now().UnixNano()
conn, err := net.Dial("tcp", *serverAddress) conn, err := net.Dial("tcp", *serverAddress)
if err != nil { if err != nil {
log.Fatal("Cannot connect to ", *serverAddress, err) log.Fatal("Cannot connect to ", *serverAddress, err)
@ -83,7 +85,11 @@ func tcpdelayClient() {
log.Fatal("Unexpected offset ", oSent, " instead of ", o) log.Fatal("Unexpected offset ", oSent, " instead of ", o)
} }
ts := binary.BigEndian.Uint64(buffer[16:]) ts := binary.BigEndian.Uint64(buffer[16:])
fmt.Println(o, ts, tr) // XXX - buffer for performance if *relativeTimes {
fmt.Println(o, int64(ts)-t0, tr-t0)
} else {
fmt.Println(o, ts, tr)
}
o += n o += n
} }