go race_unix_test 源码
golang race_unix_test 代码
文件路径：/src/runtime/race/race_unix_test.go
// Copyright 2014 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.
//go:build race && (darwin || freebsd || linux)
package race_test
import (
"sync/atomic"
"syscall"
"testing"
"unsafe"
)
// Test that race detector does not crash when accessing non-Go allocated memory (issue 9136).
func TestNonGoMemory(t *testing.T) {
data, err := syscall.Mmap(-1, 0, 4096, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_ANON|syscall.MAP_PRIVATE)
if err != nil {
t.Fatalf("failed to mmap memory: %v", err)
}
p := (*uint32)(unsafe.Pointer(&data[0]))
atomic.AddUint32(p, 1)
(*p)++
if *p != 2 {
t.Fatalf("data[0] = %v, expect 2", *p)
}
syscall.Munmap(data)
}
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
7、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦