corebarrierimpl.h

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/*
 *  COPYRIGHT (c) 1989-2006.
 *  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.org/license/LICENSE.
 */

#ifndef _RTEMS_SCORE_COREBARRIERIMPL_H
#define _RTEMS_SCORE_COREBARRIERIMPL_H

#include <rtems/score/corebarrier.h>
#include <rtems/score/status.h>
#include <rtems/score/threadqimpl.h>

#ifdef __cplusplus
extern "C" {
#endif

#define CORE_BARRIER_TQ_OPERATIONS &_Thread_queue_Operations_FIFO

void _CORE_barrier_Initialize(
  CORE_barrier_Control       *the_barrier,
  CORE_barrier_Attributes    *the_barrier_attributes
);

RTEMS_INLINE_ROUTINE void _CORE_barrier_Destroy(
  CORE_barrier_Control *the_barrier
)
{
  _Thread_queue_Destroy( &the_barrier->Wait_queue );
}

RTEMS_INLINE_ROUTINE void _CORE_barrier_Acquire_critical(
  CORE_barrier_Control *the_barrier,
  Thread_queue_Context *queue_context
)
{
  _Thread_queue_Acquire_critical( &the_barrier->Wait_queue, queue_context );
}

RTEMS_INLINE_ROUTINE void _CORE_barrier_Release(
  CORE_barrier_Control *the_barrier,
  Thread_queue_Context *queue_context
)
{
  _Thread_queue_Release( &the_barrier->Wait_queue, queue_context );
}

Status_Control _CORE_barrier_Seize(
  CORE_barrier_Control *the_barrier,
  Thread_Control       *executing,
  bool                  wait,
  Thread_queue_Context *queue_context
);

uint32_t _CORE_barrier_Do_flush(
  CORE_barrier_Control      *the_barrier,
  Thread_queue_Flush_filter  filter,
  Thread_queue_Context      *queue_context
);

RTEMS_INLINE_ROUTINE uint32_t _CORE_barrier_Surrender(
  CORE_barrier_Control *the_barrier,
  Thread_queue_Context *queue_context
)
{
  return _CORE_barrier_Do_flush(
    the_barrier,
    _Thread_queue_Flush_default_filter,
    queue_context
  );
}

RTEMS_INLINE_ROUTINE void _CORE_barrier_Flush(
  CORE_barrier_Control *the_barrier,
  Thread_queue_Context *queue_context
)
{
  _CORE_barrier_Do_flush(
    the_barrier,
    _Thread_queue_Flush_status_object_was_deleted,
    queue_context
  );
}

RTEMS_INLINE_ROUTINE bool _CORE_barrier_Is_automatic(
  CORE_barrier_Attributes *the_attribute
)
{
   return
     (the_attribute->discipline == CORE_BARRIER_AUTOMATIC_RELEASE);
}

RTEMS_INLINE_ROUTINE uint32_t  _CORE_barrier_Get_number_of_waiting_threads(
  CORE_barrier_Control  *the_barrier
)
{
  return the_barrier->number_of_waiting_threads;
}

#ifdef __cplusplus
}
#endif

#endif
/* end of include file */