PTHREAD_EXIT(3) BSD Library Functions Manual PTHREAD_EXIT(3)
pthread_exit -- terminate the calling thread
POSIX Threads Library (libpthread, -lpthread)
The pthread_exit() function terminates the calling thread and makes the value value_ptr
available to any successful join with the terminating thread. Any cancellation cleanup han-
dlers that have been pushed and are not yet popped are popped in the reverse order that they
were pushed and then executed. After all cancellation handlers have been executed, if the
thread has any thread-specific data, appropriate destructor functions are called in an
unspecified order. Thread termination does not release any application visible process
resources, including, but not limited to, mutexes and file descriptors, nor does it perform
any process level cleanup actions, including, but not limited to, calling atexit() routines
that may exist.
An implicit call to pthread_exit() is made when a thread other than the thread in which
main() was first invoked returns from the start routine that was used to create it. The
function's return value serves as the thread's exit status.
The behavior of pthread_exit() is undefined if called from a cancellation handler or
destructor function that was invoked as the result of an implicit or explicit call to
After a thread has terminated, the result of access to local (auto) variables of the thread
is undefined. Thus, references to local variables of the exiting thread should not be used
for the pthread_exit() value_ptr parameter value.
The process will exit with an exit status of 0 after the last thread has been terminated.
The behavior is as if the implementation called exit() with a zero argument at thread termi-
The pthread_exit() function cannot return to its caller.
_exit(2), exit(3), pthread_create(3), pthread_join(3)
The function conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
BSD July 9, 2010 BSD