77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
// Copyright (c) 2012-2014 Jeremy Latt
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// Copyright (c) 2016 Daniel Oaks <daniel@danieloaks.net>
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// released under the MIT license
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package irc
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import (
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"fmt"
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"os"
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"runtime"
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"runtime/debug"
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"runtime/pprof"
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"time"
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"github.com/goshuirc/irc-go/ircmsg"
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)
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// DEBUG GCSTATS/NUMGOROUTINE/etc
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func debugHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
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if !client.flags[Operator] {
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return false
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}
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switch msg.Params[0] {
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case "GCSTATS":
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stats := debug.GCStats{
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Pause: make([]time.Duration, 10),
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PauseQuantiles: make([]time.Duration, 5),
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}
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debug.ReadGCStats(&stats)
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client.Notice(fmt.Sprintf("last GC: %s", stats.LastGC.Format(time.RFC1123)))
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client.Notice(fmt.Sprintf("num GC: %d", stats.NumGC))
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client.Notice(fmt.Sprintf("pause total: %s", stats.PauseTotal))
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client.Notice(fmt.Sprintf("pause quantiles min%%: %s", stats.PauseQuantiles[0]))
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client.Notice(fmt.Sprintf("pause quantiles 25%%: %s", stats.PauseQuantiles[1]))
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client.Notice(fmt.Sprintf("pause quantiles 50%%: %s", stats.PauseQuantiles[2]))
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client.Notice(fmt.Sprintf("pause quantiles 75%%: %s", stats.PauseQuantiles[3]))
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client.Notice(fmt.Sprintf("pause quantiles max%%: %s", stats.PauseQuantiles[4]))
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case "NUMGOROUTINE":
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count := runtime.NumGoroutine()
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client.Notice(fmt.Sprintf("num goroutines: %d", count))
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case "PROFILEHEAP":
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profFile := "ergonomadic.mprof"
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file, err := os.Create(profFile)
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if err != nil {
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client.Notice(fmt.Sprintf("error: %s", err))
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break
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}
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defer file.Close()
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pprof.Lookup("heap").WriteTo(file, 0)
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client.Notice(fmt.Sprintf("written to %s", profFile))
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case "STARTCPUPROFILE":
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profFile := "ergonomadic.prof"
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file, err := os.Create(profFile)
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if err != nil {
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client.Notice(fmt.Sprintf("error: %s", err))
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break
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}
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if err := pprof.StartCPUProfile(file); err != nil {
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defer file.Close()
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client.Notice(fmt.Sprintf("error: %s", err))
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break
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}
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client.Notice(fmt.Sprintf("CPU profile writing to %s", profFile))
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case "STOPCPUPROFILE":
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pprof.StopCPUProfile()
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client.Notice(fmt.Sprintf("CPU profiling stopped"))
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}
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return false
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}
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