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1 | ////////////////////////////////////////////////////////////////////////////// |
2 | // | |
3 | // (C) Copyright Ion Gaztanaga 2018-2018. Distributed under the Boost | |
4 | // Software License, Version 1.0. (See accompanying file | |
5 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | // | |
7 | // See http://www.boost.org/libs/interprocess for documentation. | |
8 | // | |
9 | ////////////////////////////////////////////////////////////////////////////// | |
10 | ////////////////////////////////////////////////////////////////////////////// | |
11 | // | |
12 | // This code is partially based on the lightweight mutex implemented | |
13 | // by Boost.SmartPtr: | |
14 | // | |
15 | // Copyright (c) 2002, 2003 Peter Dimov | |
16 | // Copyright (c) Microsoft Corporation 2014 | |
17 | // | |
18 | // Distributed under the Boost Software License, Version 1.0. (See | |
19 | // accompanying file LICENSE_1_0.txt or copy at | |
20 | // http://www.boost.org/LICENSE_1_0.txt) | |
21 | // | |
22 | ////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | #ifndef BOOST_CONFIG_HPP | |
25 | # include <boost/config.hpp> | |
26 | #endif | |
27 | # | |
28 | #if defined(BOOST_HAS_PRAGMA_ONCE) | |
29 | # pragma once | |
30 | #endif | |
31 | ||
32 | #ifndef BOOST_CONTAINER_DETAIL_THREAD_MUTEX_HPP | |
33 | #define BOOST_CONTAINER_DETAIL_THREAD_MUTEX_HPP | |
34 | ||
35 | #include <boost/container/detail/config_begin.hpp> | |
36 | #include <boost/container/detail/workaround.hpp> | |
37 | ||
38 | #if defined(BOOST_HAS_PTHREADS) | |
39 | ||
40 | #include <pthread.h> | |
41 | #include <boost/assert.hpp> | |
42 | ||
43 | namespace boost{ | |
44 | namespace container { | |
45 | namespace dtl { | |
46 | ||
47 | class thread_mutex | |
48 | { | |
49 | public: | |
50 | thread_mutex() | |
51 | { | |
52 | BOOST_VERIFY(pthread_mutex_init(&m_mut, 0) == 0); | |
53 | } | |
54 | ||
55 | ~thread_mutex() | |
56 | { | |
57 | BOOST_VERIFY(pthread_mutex_destroy(&m_mut) == 0); | |
58 | } | |
59 | ||
60 | void lock() | |
61 | { | |
62 | BOOST_VERIFY(pthread_mutex_lock( &m_mut) == 0); | |
63 | } | |
64 | ||
65 | void unlock() | |
66 | { | |
67 | BOOST_VERIFY(pthread_mutex_unlock(&m_mut) == 0); | |
68 | } | |
69 | ||
70 | private: | |
71 | thread_mutex(thread_mutex const &); | |
72 | thread_mutex & operator=(thread_mutex const &); | |
73 | ||
74 | pthread_mutex_t m_mut; | |
75 | }; | |
76 | ||
77 | } // namespace dtl { | |
78 | } // namespace container { | |
79 | } // namespace boost { | |
80 | ||
81 | #else //!BOOST_HAS_PTHREADS (Windows implementation) | |
82 | ||
83 | #ifdef BOOST_USE_WINDOWS_H | |
84 | ||
85 | #include <windows.h> | |
86 | ||
87 | namespace boost{ | |
88 | namespace container { | |
89 | namespace dtl { | |
90 | ||
91 | typedef ::CRITICAL_SECTION win_critical_section; | |
92 | ||
93 | } // namespace dtl { | |
94 | } // namespace container { | |
95 | } // namespace boost { | |
96 | ||
97 | #else //! BOOST_USE_WINDOWS_H | |
98 | ||
99 | struct _RTL_CRITICAL_SECTION_DEBUG; | |
100 | struct _RTL_CRITICAL_SECTION; | |
101 | ||
102 | namespace boost{ | |
103 | namespace container { | |
104 | namespace dtl { | |
105 | ||
106 | #ifdef BOOST_PLAT_WINDOWS_UWP | |
20effc67 | 107 | extern "C" __declspec(dllimport) int __stdcall InitializeCriticalSectionEx(::_RTL_CRITICAL_SECTION *, unsigned long, unsigned long); |
92f5a8d4 TL |
108 | #else |
109 | extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSection(::_RTL_CRITICAL_SECTION *); | |
110 | #endif | |
111 | extern "C" __declspec(dllimport) void __stdcall EnterCriticalSection(::_RTL_CRITICAL_SECTION *); | |
112 | extern "C" __declspec(dllimport) void __stdcall LeaveCriticalSection(::_RTL_CRITICAL_SECTION *); | |
113 | extern "C" __declspec(dllimport) void __stdcall DeleteCriticalSection(::_RTL_CRITICAL_SECTION *); | |
114 | ||
115 | struct win_critical_section | |
116 | { | |
117 | struct _RTL_CRITICAL_SECTION_DEBUG * DebugInfo; | |
118 | long LockCount; | |
119 | long RecursionCount; | |
120 | void * OwningThread; | |
121 | void * LockSemaphore; | |
122 | #if defined(_WIN64) | |
123 | unsigned __int64 SpinCount; | |
124 | #else | |
125 | unsigned long SpinCount; | |
126 | #endif | |
127 | }; | |
128 | ||
129 | } // namespace dtl { | |
130 | } // namespace container { | |
131 | } // namespace boost { | |
132 | ||
133 | #endif //BOOST_USE_WINDOWS_H | |
134 | ||
135 | namespace boost{ | |
136 | namespace container { | |
137 | namespace dtl { | |
138 | ||
139 | class thread_mutex | |
140 | { | |
141 | public: | |
142 | thread_mutex() | |
143 | { | |
144 | #ifdef BOOST_PLAT_WINDOWS_UWP | |
145 | (InitializeCriticalSectionEx)(reinterpret_cast< ::_RTL_CRITICAL_SECTION* >(&m_crit_sect), 4000, 0); | |
146 | #else | |
147 | (InitializeCriticalSection)(reinterpret_cast< ::_RTL_CRITICAL_SECTION* >(&m_crit_sect)); | |
148 | #endif | |
149 | } | |
150 | ||
151 | void lock() | |
152 | { | |
153 | (EnterCriticalSection)(reinterpret_cast< ::_RTL_CRITICAL_SECTION* >(&m_crit_sect)); | |
154 | } | |
155 | ||
156 | void unlock() | |
157 | { | |
158 | (LeaveCriticalSection)(reinterpret_cast< ::_RTL_CRITICAL_SECTION* >(&m_crit_sect)); | |
159 | } | |
160 | ||
161 | ~thread_mutex() | |
162 | { | |
163 | (DeleteCriticalSection)(reinterpret_cast< ::_RTL_CRITICAL_SECTION* >(&m_crit_sect)); | |
164 | } | |
165 | ||
166 | private: | |
167 | thread_mutex(thread_mutex const &); | |
168 | thread_mutex & operator=(thread_mutex const &); | |
169 | ||
170 | win_critical_section m_crit_sect; | |
171 | }; | |
172 | ||
173 | } // namespace dtl { | |
174 | } // namespace container { | |
175 | } // namespace boost { | |
176 | ||
177 | #endif //BOOST_HAS_PTHREADS | |
178 | ||
179 | #include <boost/container/detail/config_end.hpp> | |
180 | ||
181 | #endif // #ifndef BOOST_CONTAINER_DETAIL_THREAD_MUTEX_HPP |