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关于mutex的疑问 #80

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cuglaiyp opened this issue Jul 2, 2021 · 1 comment
Open

关于mutex的疑问 #80

cuglaiyp opened this issue Jul 2, 2021 · 1 comment
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@cuglaiyp
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cuglaiyp commented Jul 2, 2021 •
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问题描述

在5.3 mutex一节中，开头有这么一句话

在正常模式中，等待者按照 FIFO 的顺序排队获取锁

我注意到这个是官方注释
在下文的unlockSlow方法中，正常唤醒逻辑的代码是runtime_Semrelease(&m.sema, false, 1)，您的注释是

唤醒一个阻塞的 goroutine，但不是唤醒第一个等待者

这两个说法是不是冲突了？
@changkun
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抱歉回复晚了, 刚才看了一下, 这个注释确实是有问题的.

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@changkun @cuglaiyp