source: rtems/cpukit/posix/src/semdestroy.c @ 77fbbd6

5
Last change on this file since 77fbbd6 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: 753 bytes
Line 
1/**
2 *  @file
3 *
4 *  @brief Destroy an Unnamed Semaphore
5 *  @ingroup POSIX_SEMAPHORE
6 */
7
8/*
9 *  COPYRIGHT (c) 1989-2014.
10 *  On-Line Applications Research Corporation (OAR).
11 *
12 *  The license and distribution terms for this file may be
13 *  found in the file LICENSE in this distribution or at
14 *  http://www.rtems.org/license/LICENSE.
15 */
16
17#if HAVE_CONFIG_H
18#include "config.h"
19#endif
20
21#include <rtems/posix/semaphoreimpl.h>
22
23int sem_destroy( sem_t *sem )
24{
25  POSIX_SEMAPHORE_VALIDATE_OBJECT( sem );
26
27  if ( _POSIX_Semaphore_Is_named( sem ) ) {
28    rtems_set_errno_and_return_minus_one( EINVAL );
29  }
30
31  if ( _POSIX_Semaphore_Is_busy( sem ) ) {
32    rtems_set_errno_and_return_minus_one( EBUSY );
33  }
34
35  _POSIX_Semaphore_Destroy( sem );
36  return 0;
37}
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