blob: e2b21b5a56b2649899d9288cf8f7693cb4a52b70 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
#ifndef _sys_posix_Mutex_h
#define _sys_posix_Mutex_h
/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "qpid/sys/posix/check.h"
#include <pthread.h>
#include <boost/noncopyable.hpp>
namespace qpid {
namespace sys {
class Condition;
/**
* Mutex lock.
*/
class Mutex : private boost::noncopyable {
friend class Condition;
static const pthread_mutexattr_t* getAttribute();
public:
typedef ::qpid::sys::ScopedLock<Mutex> ScopedLock;
typedef ::qpid::sys::ScopedUnlock<Mutex> ScopedUnlock;
inline Mutex();
inline ~Mutex();
inline void lock();
inline void unlock();
inline bool trylock();
protected:
pthread_mutex_t mutex;
};
/**
* RW lock.
*/
class RWlock : private boost::noncopyable {
friend class Condition;
public:
typedef ::qpid::sys::ScopedRlock<RWlock> ScopedRlock;
typedef ::qpid::sys::ScopedWlock<RWlock> ScopedWlock;
inline RWlock();
inline ~RWlock();
inline void wlock(); // will write-lock
inline void rlock(); // will read-lock
inline void unlock();
inline void trywlock(); // will write-try
inline void tryrlock(); // will read-try
protected:
pthread_rwlock_t rwlock;
};
/**
* PODMutex is a POD, can be static-initialized with
* PODMutex m = QPID_PODMUTEX_INITIALIZER
*/
struct PODMutex
{
typedef ::qpid::sys::ScopedLock<PODMutex> ScopedLock;
inline void lock();
inline void unlock();
inline bool trylock();
// Must be public to be a POD:
pthread_mutex_t mutex;
};
#define QPID_MUTEX_INITIALIZER { PTHREAD_MUTEX_INITIALIZER }
void PODMutex::lock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_mutex_lock(&mutex));
}
void PODMutex::unlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_mutex_unlock(&mutex));
}
bool PODMutex::trylock() {
return pthread_mutex_trylock(&mutex) == 0;
}
Mutex::Mutex() {
QPID_POSIX_ASSERT_THROW_IF(pthread_mutex_init(&mutex, getAttribute()));
}
Mutex::~Mutex(){
QPID_POSIX_ABORT_IF(pthread_mutex_destroy(&mutex));
}
void Mutex::lock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_mutex_lock(&mutex));
}
void Mutex::unlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_mutex_unlock(&mutex));
}
bool Mutex::trylock() {
return pthread_mutex_trylock(&mutex) == 0;
}
RWlock::RWlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_init(&rwlock, NULL));
}
RWlock::~RWlock(){
QPID_POSIX_ABORT_IF(pthread_rwlock_destroy(&rwlock));
}
void RWlock::wlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_wrlock(&rwlock));
}
void RWlock::rlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_rdlock(&rwlock));
}
void RWlock::unlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_unlock(&rwlock));
}
void RWlock::trywlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_trywrlock(&rwlock));
}
void RWlock::tryrlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_tryrdlock(&rwlock));
}
}}
#endif /*!_sys_posix_Mutex_h*/
|
