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/*

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

 */

#if HAVE_CONFIG_H

#include "config.h"

#endif

#include <pthread.h>

#include <errno.h>

#include <rtems/system.h>

#include <rtems/score/object.h>

#include <rtems/score/states.h>

#include <rtems/score/watchdog.h>

#include <rtems/posix/cond.h>

#include <rtems/posix/time.h>

#include <rtems/posix/mutex.h>

/*PAGE

 *

 *  11.4.2 Initializing and Destroying a Condition Variable,

 *         P1003.1c/Draft 10, p. 87

 */

int pthread_cond_destroy(

  pthread_cond_t           *cond

)

{

  register POSIX_Condition_variables_Control *the_cond;

  Objects_Locations                           location;

  the_cond = _POSIX_Condition_variables_Get( cond, &location );

  switch ( location ) {

    case OBJECTS_REMOTE:

#if defined(RTEMS_MULTIPROCESSING)

      _Thread_Dispatch();

      return POSIX_MP_NOT_IMPLEMENTED();

      return EINVAL;

#endif

    case OBJECTS_ERROR:

      return EINVAL;

    case OBJECTS_LOCAL:

      if ( _Thread_queue_First( &the_cond->Wait_queue ) ) {

        _Thread_Enable_dispatch();

        return EBUSY;

      }

      _Objects_Close(

        &_POSIX_Condition_variables_Information,

        &the_cond->Object

      );

      _POSIX_Condition_variables_Free( the_cond );

#if defined(RTEMS_MULTIPROCESSING)

      if ( the_cond->process_shared == PTHREAD_PROCESS_SHARED ) {

        _Objects_MP_Close(

          &_POSIX_Condition_variables_Information,

          the_cond->Object.id

        );

        _POSIX_Condition_variables_MP_Send_process_packet(

          POSIX_CONDITION_VARIABLES_MP_ANNOUNCE_DELETE,

          the_cond->Object.id,

          0,                         /* Not used */

        );

      }

#endif

      _Thread_Enable_dispatch();

      return 0;

  }

  return POSIX_BOTTOM_REACHED();

}