sem.h

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/*
 * COPYRIGHT (c) 1989-2008.
 * 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_RTEMS_SEM_H
#define _RTEMS_RTEMS_SEM_H

#include <rtems/rtems/types.h>
#include <rtems/rtems/options.h>
#include <rtems/rtems/support.h>
#include <rtems/rtems/tasks.h>
#include <rtems/rtems/attr.h>
#include <rtems/score/coremutex.h>
#include <rtems/score/object.h>
#include <rtems/score/coresem.h>
#include <rtems/score/mrsp.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
  Objects_Control          Object;

  rtems_attribute          attribute_set;

  union {
    CORE_mutex_Control     mutex;

    CORE_semaphore_Control semaphore;

#if defined(RTEMS_SMP)
    MRSP_Control mrsp;
#endif
  } Core_control;
}   Semaphore_Control;

rtems_status_code rtems_semaphore_create(
  rtems_name           name,
  uint32_t             count,
  rtems_attribute      attribute_set,
  rtems_task_priority  priority_ceiling,
  rtems_id            *id
);

rtems_status_code rtems_semaphore_ident(
  rtems_name    name,
  uint32_t      node,
  rtems_id     *id
);

rtems_status_code rtems_semaphore_delete(
  rtems_id   id
);

rtems_status_code rtems_semaphore_obtain(
  rtems_id       id,
  rtems_option   option_set,
  rtems_interval timeout
);

rtems_status_code rtems_semaphore_release(
  rtems_id   id
);

rtems_status_code rtems_semaphore_flush(
  rtems_id         id
);

rtems_status_code rtems_semaphore_set_priority(
  rtems_id             semaphore_id,
  rtems_id             scheduler_id,
  rtems_task_priority  new_priority,
  rtems_task_priority *old_priority
);

#ifdef __cplusplus
}
#endif

#endif
/*  end of include file */