Retro68/gcc/libgo/go/runtime/trace/example_test.go
2018-12-28 16:30:48 +01:00

42 lines
867 B
Go

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