I thought one used the select function to wait on multiple semaphores but according to http://opengroup.org/onlinepubs/0079...sh/select.html, the select function is only good for I/O features (like pipes and fifos).

How can I block for multiple semaphores? What if I have a mixture of things to wait on like semaphores from sem.h, semaphores from semaphore.h and mutexes? Am I out of luck?


Thanks,
Siegfried

Use pthread_mutex_timedlock(), sem_trywait() (in conjunction with sleep()) functions in a cycle and continue executing when all mutexes/semaphores are blocked by your thread.