The unlock-and-block part of cond_wait() is atomic; hence, by the time another thread acquires the lock, this first thread is guaranteed to be in a waiting state.

But if the signalling thread signals before the other thread(s) reach the wait(); that signal can be lost.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
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In reply to Re^12: Threads sharing global variable by BrowserUk
in thread Threads sharing global variable by Anonymous Monk

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