source: lib/pthread_spinlock.c @ 24fe0f5

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivendag_formatrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since 24fe0f5 was ee6e802, checked in by Shane Alcock <salcock@…>, 5 years ago

Updated copyright blurb on all source files

In some cases, this meant adding copyright blurbs to files that
had never had them before.

  • Property mode set to 100644
File size: 1.7 KB
Line 
1/*
2 *
3 * Copyright (c) 2007-2016 The University of Waikato, Hamilton, New Zealand.
4 * All rights reserved.
5 *
6 * This file is part of libtrace.
7 *
8 * This code has been developed by the University of Waikato WAND
9 * research group. For further information please see http://www.wand.net.nz/
10 *
11 * libtrace is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation; either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * libtrace is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
23 *
24 *
25 */
26
27#ifdef __APPLE__
28
29#include "pthread_spinlock.h"
30
31int pthread_spin_lock(pthread_spinlock_t *lock) {
32        if (lock == NULL)
33                return EINVAL;
34
35        OSSpinLockLock(lock);
36        return 0;
37}
38
39int pthread_spin_trylock(pthread_spinlock_t *lock) {
40        if (lock == NULL)
41                return EINVAL;
42
43        if (OSSpinLockTry(lock)) {
44                return 0;
45        } else {
46                return EBUSY;
47        }
48}
49
50int pthread_spin_unlock(pthread_spinlock_t *lock) {
51        if (lock == NULL)
52                return EINVAL;
53        OSSpinLockUnlock(lock);
54        return 0;
55}
56
57int pthread_spin_destroy(pthread_spinlock_t *lock) {
58        if (*lock != 0)
59                return EBUSY;
60        return 0;
61}
62
63int pthread_spin_init(pthread_spinlock_t *lock, int pshared) {
64        if (lock == NULL)
65                return EINVAL;
66        *lock = OS_SPINLOCK_INIT;
67        (void)pshared;
68        return 0;
69}
70
71#endif /* __APPLE__ */
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