pthread_join(3) - NetBSD Manual Pages

Command: Section: Arch: Collection:  
PTHREAD_JOIN(3)         NetBSD Library Functions Manual        PTHREAD_JOIN(3)


NAME
pthread_join -- wait for thread termination
LIBRARY
POSIX Threads Library (libpthread, -lpthread)
SYNOPSIS
#include <pthread.h> int pthread_join(pthread_t thread, void **value_ptr);
DESCRIPTION
The pthread_join() function suspends execution of the calling thread until the target thread terminates unless the target thread has already terminated. On return from a successful pthread_join() call with a non-NULL value_ptr argument, the value passed to pthread_exit() by the terminating thread is stored in the location referenced by value_ptr. When a pthread_join() returns successfully, the target thread has been terminated. The results of multiple simultaneous calls to pthread_join() specifying the same tar- get thread are undefined. If the thread calling pthread_join() is can- celled, then the target thread is not detached. A thread that has exited but remains unjoined counts against _POSIX_THREAD_THREADS_MAX.
RETURN VALUES
If successful, the pthread_join() function will return zero. Otherwise an error number will be returned to indicate the error.
ERRORS
pthread_join() shall fail if: [EINVAL] The value specified by thread does not refer to a joinable thread. [ESRCH] No thread could be found corresponding to that speci- fied by the given thread ID, thread. pthread_join() may fail if: [EDEADLK] A deadlock was detected or the value of thread speci- fies the calling thread.
SEE ALSO
wait(2), pthread_create(3)
STANDARDS
The function conforms to IEEE Std 1003.1-2001 (``POSIX.1''). NetBSD 9.99 July 9, 2010 NetBSD 9.99
Powered by man-cgi (2021-03-02). Maintained for NetBSD by Kimmo Suominen. Based on man-cgi by Panagiotis Christias.