Re: calling mutex_lock() twice from one thread

[Nicolas EDEL <nedel@telisma.com>]

Bastian Voigt wrote:
> Dear list,
> 
> according to the documentation pthread_mutex_lock() assigns the mutex to 
> the calling thread, and if a different thread calls it again it will be 
> blocked.
> 
> In my scenario I want one thread to block itself, to be waked up later 
> by a signal handler. This does not work by simply calling mutex_lock() 
> twice, it does not block.
> 
> What can you recommend to achieve this? To be more concrete, I do the 
> following:
> 
> The main thread loads some configuration, then starts some worker 
> threads. After the worker threads are running I want the main thread to 
> sleep until a signal (Ctrl-C) arrives. Will it work better when using 
> semaphores?
> 
> Thanks for any hints!
> 
> Bastian Voigt


hi,

maybe you should have a look at the pthread_cond_t doc & usage.
regards

--N