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42 lines
867 B
Go
42 lines
867 B
Go
// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build ignore
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package trace_test
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import (
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"fmt"
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"log"
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"os"
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"runtime/trace"
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)
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// Example demonstrates the use of the trace package to trace
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// the execution of a Go program. The trace output will be
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// written to the file trace.out
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func Example() {
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f, err := os.Create("trace.out")
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if err != nil {
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log.Fatalf("failed to create trace output file: %v", err)
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}
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defer func() {
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if err := f.Close(); err != nil {
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log.Fatalf("failed to close trace file: %v", err)
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}
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}()
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if err := trace.Start(f); err != nil {
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log.Fatalf("failed to start trace: %v", err)
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}
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defer trace.Stop()
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// your program here
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RunMyProgram()
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}
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func RunMyProgram() {
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fmt.Printf("this function will be traced")
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}
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