How is pthread_join implemented?

Question

I\'m a little new to threading, so you\'ll have to forgive the naiveté of this question.

How is pthread_join implemented and how does it effect thread s

Answer 1

pthread_join is probably internally implemented as a wait for a semaphore which is triggered when the thread exits, either when it calls pthread_exit or when its main function exits.

In any case, the source code for glibc is available, try google code search (I saw some informative stuff in there)