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-rw-r--r--src/runtime/trace/example_test.go39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/runtime/trace/example_test.go b/src/runtime/trace/example_test.go
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+// 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.
+
+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")
+}