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stats.go
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stats.go
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//-----------------------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
// Licensed under the MIT license.
// See LICENSE.txt file in the project root for full license information.
//-----------------------------------------------------------------------------
package main
import (
"sort"
"time"
)
type ethrNetStat struct {
netDevStats []ethrNetDevStat
tcpStats ethrTCPStat
}
type ethrNetDevStat struct {
interfaceName string
rxBytes uint64
txBytes uint64
rxPkts uint64
txPkts uint64
}
type ethrTCPStat struct {
segRetrans uint64
}
func getNetworkStats() ethrNetStat {
stats := ðrNetStat{}
getNetDevStats(stats)
sort.SliceStable(stats.netDevStats, func(i, j int) bool {
return stats.netDevStats[i].interfaceName < stats.netDevStats[j].interfaceName
})
getTCPStats(stats)
return *stats
}
func getNetDevStatDiff(curStats ethrNetDevStat, prevNetStats ethrNetStat) ethrNetDevStat {
for _, prevStats := range prevNetStats.netDevStats {
if prevStats.interfaceName != curStats.interfaceName {
continue
}
if curStats.rxBytes >= prevStats.rxBytes {
curStats.rxBytes -= prevStats.rxBytes
} else {
curStats.rxBytes += (^uint64(0) - prevStats.rxBytes)
}
if curStats.txBytes >= prevStats.txBytes {
curStats.txBytes -= prevStats.txBytes
} else {
curStats.txBytes += (^uint64(0) - prevStats.txBytes)
}
if curStats.rxPkts >= prevStats.rxPkts {
curStats.rxPkts -= prevStats.rxPkts
} else {
curStats.rxPkts += (^uint64(0) - prevStats.rxPkts)
}
if curStats.txPkts >= prevStats.txPkts {
curStats.txPkts -= prevStats.txPkts
} else {
curStats.txPkts += (^uint64(0) - prevStats.txPkts)
}
break
}
return curStats
}
var statsEnabled bool
func startStatsTimer() {
if statsEnabled {
return
}
ticker := time.NewTicker(time.Second)
statsEnabled = true
go func() {
for statsEnabled {
select {
case <-ticker.C:
emitStats()
}
}
ticker.Stop()
return
}()
}
func stopStatsTimer() {
statsEnabled = false
}
func emitStats() {
ui.emitTestResultBegin()
emitTestResults()
ui.emitTestResultEnd()
ui.emitStats(getNetworkStats())
ui.paint()
}
func emitTestResults() {
gSessionLock.RLock()
defer gSessionLock.RUnlock()
for _, k := range gSessionKeys {
v := gSessions[k]
ui.emitTestResult(v, TCP)
ui.emitTestResult(v, UDP)
ui.emitTestResult(v, HTTP)
ui.emitTestResult(v, HTTPS)
ui.emitTestResult(v, ICMP)
}
}