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PTHREAD_EXIT(3) Linux Programmer's Manual PTHREAD_EXIT(3)
pthread_exit - terminate calling thread
#include <pthread.h>
void pthread_exit(void *retval);
Compile and link with -pthread.
The pthread_exit() function terminates the calling thread and returns a value
via retval that (if the thread is joinable) is available to another thread in
the same process that calls pthread_join(3).
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.
This function does not return to the caller.
This function always succeeds.
POSIX.1-2001.
Performing a return from the start function of any thread other than the main
thread results in an implicit call to pthread_exit(), using the function's
return value as the thread's exit status.
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.
Currently, there are limitations in the kernel implementation logic for
wait(2)ing on a stopped thread group with a dead thread group leader. This
can manifest in problems such as a locked terminal if a stop signal is sent to
a foreground process whose thread group leader has already called
pthread_exit().
pthread_create(3), pthread_join(3), pthreads(7)
This page is part of release 3.32 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can be found
at http://www.kernel.org/doc/man-pages/.
Linux 2009-03-30 PTHREAD_EXIT(3)
HTML rendering created 2010-12-03 by Michael Kerrisk, author of The Linux Programming Interface