semaphore.h

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/* SPDX-License-Identifier: BSD-2-Clause */

 
/*
 *  COPYRIGHT (c) 1989-2011.
 *  On-Line Applications Research Corporation (OAR).
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 */
 
#ifndef _RTEMS_POSIX_SEMAPHORE_H
#define _RTEMS_POSIX_SEMAPHORE_H
 
#include <rtems/score/objectdata.h>
 
#include <limits.h>
#include <semaphore.h>
 
#ifdef __cplusplus
extern "C" {
#endif

 
/*
 *  Data Structure used to manage a POSIX semaphore
 */
 
typedef struct {
   Objects_Control Object;
   sem_t           Semaphore;
   bool            linked;
   uint32_t        open_count;
}  POSIX_Semaphore_Control;

extern Objects_Information _POSIX_Semaphore_Information;

#define POSIX_SEMAPHORE_INFORMATION_DEFINE( max ) \
  OBJECTS_INFORMATION_DEFINE( \
    _POSIX_Semaphore, \
    OBJECTS_POSIX_API, \
    OBJECTS_POSIX_SEMAPHORES, \
    POSIX_Semaphore_Control, \
    max, \
    _POSIX_PATH_MAX, \
    NULL \
  )

 
#ifdef __cplusplus
}
#endif
 
#endif
/*  end of include file */