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Date: Thu, 10 Aug 2023 10:06:17 -0400
From: "Alex Xu (Hello71)" <>
Subject: Re: pthread_cond_wait may has a error

Excerpts from 祁金全's message of August 10, 2023 2:22 am:
> Hi,
> In my demo, I create 3 threads, the first and the second thread are wait for the global pthread_cond with different pthread_mutex
> The effect of using more than one mutex for concurrent 
> pthread_cond_wait() or pthread_cond_timedwait() operations on the same 
> condition variable is undefined
> When a thread waits on a condition variable, having specified a 
> particular mutex to either the pthread_cond_timedwait() or the 
> pthread_cond_wait() operation, a dynamic binding is formed between 
> that mutex and condition variable that remains in effect as long as at 
> least one thread is blocked on the condition variable. During this 
> time, the effect of an attempt by any thread to wait on that condition 
> variable using a different mutex is undefined.


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