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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                ### 死鎖概念 死鎖(Deadlock)就是一個進程拿著資源A請求資源B,另一個進程拿著資源B請求資源A,雙方都不釋放自己的資源,導致兩個進程都進行不下去。 ### 示例程序 我們可以寫代碼模擬進程死鎖的例子。 ~~~ package main func main() { ch := make(chan int) <-ch } ~~~ ### 運行結果 ~~~ root@fa13d0439d7a:/go/src# go run deadlock.go fatal error: all goroutines are asleep - deadlock! goroutine 16 [chan receive]: main.main() /go/src/deadlock.go:5 +0x4f exit status 2 ~~~ 這里Go虛擬機已經替我們檢測出死鎖的情況,因為所有Goroutine都阻塞住沒有運行,關于Goroutine的概念有機會詳細介紹一下。 我們可能很早就接觸過死鎖的概念,也很容易模擬出來,那么你是否知道活鎖呢?
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