|PTHREAD_EXIT(3)||Linux Programmer's Manual||PTHREAD_EXIT(3)|
void pthread_exit(void *retval);
Compile and link with -pthread.
Any clean-up handlers established by pthread_cleanup_push(3) that have not yet been popped, are popped (in the reverse of the order in which they were pushed) and executed. If the thread has any thread-specific data, then, after the clean-up handlers have been executed, the corresponding destructor functions are called, in an unspecified order.
When a thread terminates, process-shared resources (e.g., mutexes, condition variables, semaphores, and file descriptors) are not released, and functions registered using atexit(3) are not called.
After the last thread in a process terminates, the process terminates as by calling exit(3) with an exit status of zero; thus, process-shared resources are released and functions registered using atexit(3) are called.
|pthread_exit ()||Thread safety||MT-Safe|
To allow other threads to continue execution, the main thread should terminate by calling pthread_exit() rather than exit(3).
The value pointed to by retval should not be located on the calling thread's stack, since the contents of that stack are undefined after the thread terminates.