A WaitGroup waits for a collection of goroutines to finish. The main goroutine calls Add to set the number of goroutines to wait for. Then each of the goroutines runs and calls Done when finished. At the same t
1. 使用sync.Mutex进行互斥锁定: var(counterintmutex sync.Mutex)funcincrement(){mutex.Lock()defermutex.Unlock()counter++}funcmain(){fori:=0;i<1000;i++{goincrement()}// wait for all goroutines to finishtime.Sleep(time.Second)fmt.Println(counter)// Output: 1000} Go Copy 在上面的例子中,...
requests := []Request{...} // List of incoming requests for _, req := range requests { go processRequest(req) // Create a Goroutine for each request } // Wait for all Goroutines to finish for range requests { <-time.After(time.Second) } } 1. 2. 3. 4. 5. 6. 7. 8. 9....
A WaitGroup waits for a collection of goroutines to finish. The main goroutine calls Add to set the number of goroutines to wait for. Then each of the goroutines runs and calls Done when finished. At the same time, Wait can be used to block until all goroutines have finished. sync.W...
A WaitGroup waits for a collection of goroutines to finish. The main goroutine calls Add to set the number of goroutines to wait for. Then each of the goroutines runs and calls Done when finished. At the same time, Wait can be used to block until all goroutines have finished. ...
// A WaitGroup waits for a collection of goroutines to finish. // The main goroutine calls Add to set the number of // goroutines to wait for. Then each of the goroutines // runs and calls Done when finished. At the same time, ...
A WaitGroup waits for a collection of goroutines to finish. The main goroutine calls Add to set the number of goroutines to wait for. Then each of the goroutines runs and calls Done when finished. At the same time, Wait can be used to block until all goroutines have finished. ...
All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package sync import ( "internal/race" "sync/atomic" "unsafe" ) // A WaitGroup waits for a collection of goroutines to finish. WaitGroup等待一组goroutine...
fatal error: all goroutines are asleep - deadlock 不过在Golang里这种错误发生的几率会很少,因为有defer延时函数的存在 上面的代码可以改写为 var mu sync.Mutex mu.Lock() defer mu.Unlock() 在加锁之后马上用defer函数进行解锁操作,这样即使下面我们只关心函数逻辑而在函数退出的时候忘记Unlock操作也不会造成...
A WaitGroup waits for a collection of goroutines to finish. The main goroutine calls Add to set the number of goroutines to wait for. Then each of the goroutines runs and calls Done when finished. At the same time, Wait can be used to block until all goroutines have finished. ...