57 lines
1.1 KiB
Go
57 lines
1.1 KiB
Go
// Copyright 2015 The Chihaya Authors. All rights reserved.
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// Use of this source code is governed by the BSD 2-Clause license,
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// which can be found in the LICENSE file.
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package chihaya
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import (
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"flag"
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"net/http"
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"os"
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"runtime/pprof"
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_ "net/http/pprof"
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"github.com/golang/glog"
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)
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var (
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profile string
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debugAddr string
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profileFile *os.File
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)
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func init() {
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flag.StringVar(&profile, "profile", "", "if non-empty, path to write CPU profiling data")
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flag.StringVar(&debugAddr, "debug", "", "if non-empty, address to serve debug data")
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}
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func debugBoot() {
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var err error
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if debugAddr != "" {
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go func() {
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glog.Info("Starting debug HTTP on ", debugAddr)
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glog.Fatal(http.ListenAndServe(debugAddr, nil))
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}()
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}
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if profile != "" {
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profileFile, err = os.Create(profile)
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if err != nil {
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glog.Fatalf("Failed to create profile file: %s\n", err)
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}
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pprof.StartCPUProfile(profileFile)
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glog.Info("Started profiling")
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}
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}
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func debugShutdown() {
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if profileFile != nil {
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profileFile.Close()
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pprof.StopCPUProfile()
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glog.Info("Stopped profiling")
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}
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}
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