pthread_cond_wait() VS. sem_wait()

[mynickmynick]

What are advantages/disadvantages of using

sem_wait() and sem_post() instead of
pthread_cond_wait() and pthread_cond_broadcast()

for sincronizing pthreads?

I guess but please correct me:

Advantages:
(1) sem_wait() can be used inside signal handlers or async call backs (pthread_cond need pthread_mutex which is not signal handler safe)

Disadvantages:
(1) sem_wait()/post() is slower?

[Xav]

sem_wait() and sem_post() are quicker to type out.

[mynickmynick]

yes but
(1) they are a little slower
(2) they are limited by... do not remember... the number of file descriptors?

[Xav]

So you do know the pros/cons already?