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tsan7.go
// Copyright 2016 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 main // Setting an environment variable in a cgo program changes the C // environment. Test that this does not confuse the race detector. /* #cgo CFLAGS: -fsanitize=thread #cgo LDFLAGS: -fsanitize=thread */ import "C" import ( "fmt" "os" "sync" "time" ) func main() { var wg sync.WaitGroup var mu sync.Mutex f := func() { defer wg.Done() for i := 0; i < 100; i++ { time.Sleep(time.Microsecond) mu.Lock() s := fmt.Sprint(i) os.Setenv("TSAN_TEST"+s, s) mu.Unlock() } } wg.Add(2) go f() go f() wg.Wait() }
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