semaphorenametoid.c

RTEMS (Real-Time Executive for Multiprocessor Systems) is a free open source real-time operating sys

/*
 *  $Id: semaphorenametoid.c,v 1.6 2001/01/24 14:17:28 joel Exp $
 */

#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/score/object.h>
#include <rtems/posix/semaphore.h>
#include <rtems/posix/time.h>
#include <rtems/seterr.h>

/*PAGE
 *
 *  _POSIX_Semaphore_Name_to_id
 *
 *  Look up the specified name and attempt to locate the id
 *  for the associated semaphore.
 */

int _POSIX_Semaphore_Name_to_id(
  const char          *name,
  sem_t          *id
)
{
  Objects_Name_to_id_errors  status;

   if ( !name )
     return EINVAL;

  if ( !name[0] )
    return EINVAL;

  status = _Objects_Name_to_id( 
    &_POSIX_Semaphore_Information, (char *)name, 0, (Objects_Id*)id );

  if ( status == OBJECTS_SUCCESSFUL )
    return 0;

  return ENOENT;
}