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Merge pull request cch123#51 from LeeChiChuang/patch-1
Update semaphore.md
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semaphore.md

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@@ -236,7 +236,7 @@ func semacquire1(addr *uint32, lifo bool, profile semaProfileFlags) {
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// 高成本的情况:
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// 增加 waiter count 的值
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// 再尝试调用一次 cansemacquire,成本了就直接返回
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// 再尝试调用一次 cansemacquire,成功了就直接返回
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// 没成功就把自己作为一个 waiter 入队
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// sleep
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// (之后 waiter 的 descriptor 被 signaler 用 dequeue 踢出)

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