зеркало из https://github.com/CryptoPro/go.git
53 строки
793 B
Go
53 строки
793 B
Go
// run
|
|
|
|
// Copyright 2021 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.
|
|
|
|
// Gccgo did not make a copy of a value receiver when using a
|
|
// goroutine to call a method.
|
|
|
|
package main
|
|
|
|
import (
|
|
"sync"
|
|
"sync/atomic"
|
|
)
|
|
|
|
var wg sync.WaitGroup
|
|
|
|
type S struct {
|
|
i1, i2 int32
|
|
}
|
|
|
|
var done int32
|
|
|
|
func (s S) Check(v1, v2 int32) {
|
|
for {
|
|
if g1 := atomic.LoadInt32(&s.i1); v1 != g1 {
|
|
panic(g1)
|
|
}
|
|
if g2 := atomic.LoadInt32(&s.i2); v2 != g2 {
|
|
panic(g2)
|
|
}
|
|
if atomic.LoadInt32(&done) != 0 {
|
|
break
|
|
}
|
|
}
|
|
wg.Done()
|
|
}
|
|
|
|
func F() {
|
|
s := S{1, 2}
|
|
go s.Check(1, 2)
|
|
atomic.StoreInt32(&s.i1, 3)
|
|
atomic.StoreInt32(&s.i2, 4)
|
|
atomic.StoreInt32(&done, 1)
|
|
}
|
|
|
|
func main() {
|
|
wg.Add(1)
|
|
F()
|
|
wg.Wait()
|
|
}
|