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/**
* @file
*
* @brief Wait at a Barrier
* @ingroup POSIXAPI
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <pthread.h>
#include <errno.h>
#include <rtems/posix/barrierimpl.h>
#include <rtems/score/thread.h>
/**
* This directive allows a thread to wait at a barrier.
*
* @param[in] barrier is the barrier id
*
* @retval 0 if successful
* @retval PTHREAD_BARRIER_SERIAL_THREAD if successful
* @retval error_code if unsuccessful
*/
int pthread_barrier_wait(
pthread_barrier_t *barrier
)
{
POSIX_Barrier_Control *the_barrier = NULL;
Objects_Locations location;
Thread_Control *executing;
if ( !barrier )
return EINVAL;
the_barrier = _POSIX_Barrier_Get( barrier, &location );
switch ( location ) {
case OBJECTS_LOCAL:
executing = _Thread_Executing;
_CORE_barrier_Wait(
&the_barrier->Barrier,
executing,
the_barrier->Object.id,
true,
0,
NULL
);
_Objects_Put( &the_barrier->Object );
return _POSIX_Barrier_Translate_core_barrier_return_code(
executing->Wait.return_code );
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
#endif
case OBJECTS_ERROR:
break;
}
return EINVAL;
}
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