mutexattrsetpshared.c

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

/*
 *  $Id: mutexattrsetpshared.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
 *
 *  11.3.1 Mutex Initialization Attributes, P1003.1c/Draft 10, p. 81
 */

int pthread_mutexattr_setpshared(
  pthread_mutexattr_t *attr,
  int                  pshared
)
{
  if ( !attr || !attr->is_initialized )
    return EINVAL;

  switch ( pshared ) {
    case PTHREAD_PROCESS_SHARED:
    case PTHREAD_PROCESS_PRIVATE:
      attr->process_shared = pshared;
      return 0;

    default:
      return EINVAL;
  }
}