coremutex.h

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/*
 *  COPYRIGHT (c) 1989-2011.
 *  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_COREMUTEX_H
#define _RTEMS_SCORE_COREMUTEX_H

#include <rtems/score/thread.h>
#include <rtems/score/threadq.h>
#include <rtems/score/priority.h>
#include <rtems/score/watchdog.h>
#include <rtems/score/interr.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
  CORE_MUTEX_DISCIPLINES_FIFO,
  CORE_MUTEX_DISCIPLINES_PRIORITY,
  CORE_MUTEX_DISCIPLINES_PRIORITY_INHERIT,
  CORE_MUTEX_DISCIPLINES_PRIORITY_CEILING
}   CORE_mutex_Disciplines;

typedef enum {
  CORE_MUTEX_NESTING_ACQUIRES,
#if defined(RTEMS_POSIX_API)

  CORE_MUTEX_NESTING_IS_ERROR,
#endif

  CORE_MUTEX_NESTING_BLOCKS
}  CORE_mutex_Nesting_behaviors;

typedef struct {
  CORE_mutex_Nesting_behaviors lock_nesting_behavior;
  bool                         only_owner_release;
  CORE_mutex_Disciplines       discipline;
  Priority_Control             priority_ceiling;
}   CORE_mutex_Attributes;

#ifdef __RTEMS_STRICT_ORDER_MUTEX__

  typedef struct{
    Chain_Node                lock_queue;
    Priority_Control          priority_before;
  }  CORE_mutex_order_list;
#endif

typedef struct {
  Thread_queue_Control    Wait_queue;
  CORE_mutex_Attributes   Attributes;
  uint32_t                nest_count;
  Thread_Control         *holder;
#ifdef __RTEMS_STRICT_ORDER_MUTEX__

  CORE_mutex_order_list   queue;
#endif

}   CORE_mutex_Control;

#ifdef __cplusplus
}
#endif

#endif
/*  end of include file */