pthread_join(3T)														  pthread_join(3T)

NAME

       pthread_join() - wait for the termination of a specified thread

SYNOPSIS

PARAMETERS

	      thread	Thread whose termination is awaited by the caller.

	      value_ptr Pointer to the location where the exit status of thread is returned.

DESCRIPTION

       The  function  waits  for the termination of the target thread.	If the target thread has already terminated, this function returns immedi-
       ately.  Only threads created with a detachstate attribute value of may be specified in the target thread parameter.  On	successful  return
       from the value_ptr argument, if it is not a null pointer, will contain the value passed to by the terminating thread.

       When  a	call  returns successfully, the caller is guaranteed the target thread has terminated.	If more than one thread calls for the same
       target thread, one thread is guaranteed to return successfully.	Undefined behavior results for other callers specifying the same thread.

       If the thread calling is canceled, the target thread shall not be joined.  The exit status of the target thread will remain  available  for
       another thread to call

       If the target thread was canceled, its exit status is

       It is unspecified whether a thread that has exited, but remains unjoined, counts against the limit.

RETURN VALUE

       Upon successful completion, returns zero. Otherwise, an error number is returned to indicate the error (the variable is not set).

ERRORS

       If any of the following occur, the function returns the corresponding error number:

	      [EINVAL]	     The value specified by thread does not refer to a joinable thread.

	      [ESRCH]	     No thread could be found corresponding to thread.

       For each of the following conditions, if the condition is detected, the function returns the corresponding error number:

	      [EDEADLK]      This operation would result in process deadlock or thread specifies the calling thread.

AUTHOR

       was derived from the IEEE POSIX P1003.1c standard.

SEE ALSO

       pthread_create(3T), wait(2).

STANDARDS CONFORMANCE

								  Pthread Library						  pthread_join(3T)