1234567891011121314151617181920212223242526272829303132333435363738394041424344 |
- // Copyright 2015 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
- // This program produced false race reports when run under the C/C++
- // ThreadSanitizer, as it did not understand the synchronization in
- // the Go code.
- /*
- #cgo CFLAGS: -fsanitize=thread
- #cgo LDFLAGS: -fsanitize=thread
- int val;
- int getVal() {
- return val;
- }
- void setVal(int i) {
- val = i;
- }
- */
- import "C"
- import (
- "runtime"
- )
- func main() {
- runtime.LockOSThread()
- C.setVal(1)
- c := make(chan bool)
- go func() {
- runtime.LockOSThread()
- C.setVal(2)
- c <- true
- }()
- <-c
- if v := C.getVal(); v != 2 {
- panic(v)
- }
- }
|