mutexattrsetprioceiling.c

来自「RTEMS (Real-Time Executive for Multiproc」· C语言 代码 · 共 42 行

/*
 *  $Id: mutexattrsetprioceiling.c,v 1.2 2001/01/24 14:17:28 joel Exp $
 */

#if HAVE_CONFIG_H
#include "config.h"
#endif

#include <assert.h>
#include <errno.h>
#include <pthread.h>

#include <rtems/system.h>
#include <rtems/score/coremutex.h>
#include <rtems/score/watchdog.h>
#if defined(RTEMS_MULTIPROCESSING)
#include <rtems/score/mpci.h>
#endif
#include <rtems/posix/mutex.h>
#include <rtems/posix/priority.h>
#include <rtems/posix/time.h>

/*PAGE
 *
 *  13.6.1 Mutex Initialization Scheduling Attributes, P1003.1c/Draft 10, p. 128
 */
 
int pthread_mutexattr_setprioceiling(
  pthread_mutexattr_t   *attr,
  int                    prioceiling
)
{
  if ( !attr || !attr->is_initialized )
    return EINVAL;

  if ( !_POSIX_Priority_Is_valid( prioceiling ) )
    return EINVAL;

  attr->prio_ceiling = prioceiling;
  return 0;
}