source: rtems/cpukit/posix/include/rtems/posix/semaphore.h @ c090db7

5
Last change on this file since c090db7 was c090db7, checked in by Sebastian Huber <sebastian.huber@…>, on 09/12/17 at 06:09:16

posix: Implement self-contained POSIX semaphores

For semaphore object pointer and object validation see
POSIX_SEMAPHORE_VALIDATE_OBJECT().

Destruction or close of a busy semaphore returns an error status. The
object is not flushed.

POSIX semaphores are now available in all configurations and no longer
depend on --enable-posix.

Update #2514.
Update #3116.
  • Property mode set to 100644
File size: 1.0 KB
Line 
1/**
2 * @file
3 *
4 * @brief Private Support Information for POSIX Semaphores
5 *
6 * This include file contains all the private support information for
7 * POSIX Semaphores.
8 */
9
10/*
11 *  COPYRIGHT (c) 1989-2011.
12 *  On-Line Applications Research Corporation (OAR).
13 *
14 *  The license and distribution terms for this file may be
15 *  found in the file LICENSE in this distribution or at
16 *  http://www.rtems.org/license/LICENSE.
17 */
18
19#ifndef _RTEMS_POSIX_SEMAPHORE_H
20#define _RTEMS_POSIX_SEMAPHORE_H
21
22#include <semaphore.h>
23#include <rtems/score/object.h>
24
25#ifdef __cplusplus
26extern "C" {
27#endif
28
29/**
30 * @defgroup POSIXSemaphorePrivate POSIX Semaphore Private Support
31 *
32 * @ingroup POSIXAPI
33 *
34 * This defines the internal implementation support for POSIX semaphores.
35 */
36/**@{*/
37
38/*
39 *  Data Structure used to manage a POSIX semaphore
40 */
41
42typedef struct {
43   Objects_Control Object;
44   sem_t           Semaphore;
45   bool            linked;
46   uint32_t        open_count;
47}  POSIX_Semaphore_Control;
48
49/** @} */
50
51#ifdef __cplusplus
52}
53#endif
54
55#endif
56/*  end of include file */
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