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/**
* @file
*
* @brief POSIX Semaphore Wait Support
* @ingroup POSIXSemaphorePrivate
*/
/*
* COPYRIGHT (c) 1989-2012.
* 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.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdarg.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <semaphore.h>
#include <limits.h>
#include <rtems/system.h>
#include <rtems/posix/semaphoreimpl.h>
#include <rtems/posix/time.h>
#include <rtems/seterr.h>
int _POSIX_Semaphore_Wait_support(
sem_t *sem,
bool blocking,
Watchdog_Interval timeout
)
{
POSIX_Semaphore_Control *the_semaphore;
Objects_Locations location;
Thread_Control *executing;
the_semaphore = _POSIX_Semaphore_Get( sem, &location );
switch ( location ) {
case OBJECTS_LOCAL:
executing = _Thread_Executing;
_CORE_semaphore_Seize(
&the_semaphore->Semaphore,
executing,
the_semaphore->Object.id,
blocking,
timeout
);
_Objects_Put( &the_semaphore->Object );
if ( !executing->Wait.return_code )
return 0;
rtems_set_errno_and_return_minus_one(
_POSIX_Semaphore_Translate_core_semaphore_return_code(
executing->Wait.return_code
)
);
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
#endif
case OBJECTS_ERROR:
break;
}
rtems_set_errno_and_return_minus_one( EINVAL );
}
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