source: rtems/cpukit/posix/src/keysetspecific.c @ 2d2352b

4.115
Last change on this file since 2d2352b was 2d2352b, checked in by Sebastian Huber <sebastian.huber@…>, on Jun 5, 2013 at 9:48:57 AM

score: Add and use _Objects_Put()

Add and use _Objects_Put_without_thread_dispatch(). These two functions
pair with the _Objects_Get() function. This helps to introduce object
specific SMP locks to avoid lock contention.

  • Property mode set to 100644
File size: 1.3 KB
Line 
1/**
2 * @file
3 *
4 * @brief Set Specific Key
5 * @ingroup POSIXAPI
6 */
7
8/*
9 *  COPYRIGHT (c) 1989-2007.
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.com/license/LICENSE.
15 */
16
17#if HAVE_CONFIG_H
18#include "config.h"
19#endif
20
21#include <errno.h>
22#include <limits.h>
23#include <pthread.h>
24#include <string.h>
25
26#include <rtems/system.h>
27#include <rtems/score/thread.h>
28#include <rtems/score/wkspace.h>
29#include <rtems/posix/key.h>
30
31/*
32 *  17.1.2 Thread-Specific Data Management, P1003.1c/Draft 10, p. 165
33 */
34
35int pthread_setspecific(
36  pthread_key_t  key,
37  const void    *value
38)
39{
40  register POSIX_Keys_Control *the_key;
41  uint32_t                     api;
42  uint32_t                     index;
43  Objects_Locations            location;
44
45  the_key = _POSIX_Keys_Get( key, &location );
46  switch ( location ) {
47
48    case OBJECTS_LOCAL:
49      api   = _Objects_Get_API( _Thread_Executing->Object.id );
50      index = _Objects_Get_index( _Thread_Executing->Object.id );
51      the_key->Values[ api ][ index ] = (void *) value;
52      _Objects_Put( &the_key->Object );
53      return 0;
54
55#if defined(RTEMS_MULTIPROCESSING)
56    case OBJECTS_REMOTE:   /* should never happen */
57#endif
58    case OBJECTS_ERROR:
59      break;
60  }
61
62  return EINVAL;
63}
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