go timer_test 源码
golang timer_test 代码
文件路径：/src/runtime/race/timer_test.go
// Copyright 2019 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
package race_test
import (
"sync"
"testing"
"time"
)
func TestTimers(t *testing.T) {
const goroutines = 8
var wg sync.WaitGroup
wg.Add(goroutines)
var mu sync.Mutex
for i := 0; i < goroutines; i++ {
go func() {
defer wg.Done()
ticker := time.NewTicker(1)
defer ticker.Stop()
for c := 0; c < 1000; c++ {
<-ticker.C
mu.Lock()
mu.Unlock()
}
}()
}
wg.Wait()
}
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