NAME
pthread_exit —
terminate the calling thread
SYNOPSIS
#include
<pthread.h>
void
pthread_exit(void
*value_ptr);
DESCRIPTION
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 handlers 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
pthread_exit().
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 termination time.
RETURN VALUES
The pthread_exit() function cannot return
to its caller.
ERRORS
None.
SEE ALSO
_exit(2), exit(3), pthread_cancel(3), pthread_create(3), pthread_join(3)
STANDARDS
The pthread_exit() function conforms to
ISO/IEC 9945-1:1996 (“POSIX.1”).