Panda3D

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mutexPosixImpl.I
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file mutexPosixImpl.I
10 * @author drose
11 * @date 2006-02-10
12 */
13
14/**
15 *
16 */
17 constexpr MutexPosixImpl::
18MutexPosixImpl() noexcept {
19}
20
21/**
22 *
23 */
24INLINE MutexPosixImpl::
25~MutexPosixImpl() {
26 TAU_PROFILE("MutexPosixImpl::~MutexPosixImpl", " ", TAU_USER);
27 int result = pthread_mutex_destroy(&_lock);
28 assert(result == 0);
29}
30
31/**
32 *
33 */
34INLINE void MutexPosixImpl::
35lock() {
36 TAU_PROFILE("void MutexPosixImpl::lock", " ", TAU_USER);
37 int result = pthread_mutex_lock(&_lock);
38 assert(result == 0);
39}
40
41/**
42 *
43 */
44INLINE bool MutexPosixImpl::
45try_lock() {
46 TAU_PROFILE("bool MutexPosixImpl::try_lock", " ", TAU_USER);
47 int result = pthread_mutex_trylock(&_lock);
48 assert(result == 0 || result == EBUSY);
49 return (result == 0);
50}
51
52/**
53 *
54 */
55INLINE void MutexPosixImpl::
56unlock() {
57 TAU_PROFILE("void MutexPosixImpl::unlock", " ", TAU_USER);
58 int result = pthread_mutex_unlock(&_lock);
59 assert(result == 0);
60}
61
62/**
63 *
64 */
65#ifdef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
66 constexpr ReMutexPosixImpl::
67ReMutexPosixImpl() noexcept : _lock(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) {
68}
69#else
70INLINE ReMutexPosixImpl::
71ReMutexPosixImpl() {
72 TAU_PROFILE("ReMutexPosixImpl::ReMutexPosixImpl", " ", TAU_USER);
73 pthread_mutexattr_t attr;
74 pthread_mutexattr_init(&attr);
75 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
76 int result = pthread_mutex_init(&_lock, &attr);
77 pthread_mutexattr_destroy(&attr);
78 assert(result == 0);
79}
80#endif
81
82/**
83 *
84 */
85INLINE ReMutexPosixImpl::
86~ReMutexPosixImpl() {
87 TAU_PROFILE("ReMutexPosixImpl::~ReMutexPosixImpl", " ", TAU_USER);
88 int result = pthread_mutex_destroy(&_lock);
89 assert(result == 0);
90}
91
92/**
93 *
94 */
95INLINE void ReMutexPosixImpl::
96lock() {
97 TAU_PROFILE("void ReMutexPosixImpl::lock", " ", TAU_USER);
98 int result = pthread_mutex_lock(&_lock);
99 assert(result == 0);
100}
101
102/**
103 *
104 */
105INLINE bool ReMutexPosixImpl::
106try_lock() {
107 TAU_PROFILE("bool ReMutexPosixImpl::try_lock", " ", TAU_USER);
108 int result = pthread_mutex_trylock(&_lock);
109 assert(result == 0 || result == EBUSY);
110 return (result == 0);
111}
112
113/**
114 *
115 */
116INLINE void ReMutexPosixImpl::
117unlock() {
118 TAU_PROFILE("void ReMutexPosixImpl::unlock", " ", TAU_USER);
119 int result = pthread_mutex_unlock(&_lock);
120 assert(result == 0);
121}