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tsan5.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 // Check that calls to C.malloc/C.free do not collide with the calls // made by the os/user package. // #cgo CFLAGS: -fsanitize=thread // #cgo LDFLAGS: -fsanitize=thread // #include <stdlib.h> import "C" import ( "fmt" "os" "os/user" "runtime" "sync" ) func main() { u, err := user.Current() if err != nil { fmt.Fprintln(os.Stderr, err) // Let the test pass. os.Exit(0) } var wg sync.WaitGroup for i := 0; i < 20; i++ { wg.Add(2) go func() { defer wg.Done() for i := 0; i < 1000; i++ { user.Lookup(u.Username) runtime.Gosched() } }() go func() { defer wg.Done() for i := 0; i < 1000; i++ { p := C.malloc(C.size_t(len(u.Username) + 1)) runtime.Gosched() C.free(p) } }() } wg.Wait() }
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