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1 | #ifndef BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED |
2 | #define BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED | |
3 | ||
4 | // MS compatible compilers support #pragma once | |
5 | ||
6 | #if defined(_MSC_VER) && (_MSC_VER >= 1020) | |
7 | # pragma once | |
8 | #endif | |
9 | ||
10 | // | |
11 | // boost/detail/lwm_win32_cs.hpp | |
12 | // | |
13 | // Copyright (c) 2002, 2003 Peter Dimov | |
7c673cae FG |
14 | // |
15 | // Distributed under the Boost Software License, Version 1.0. (See | |
16 | // accompanying file LICENSE_1_0.txt or copy at | |
17 | // http://www.boost.org/LICENSE_1_0.txt) | |
18 | // | |
19 | ||
7c673cae | 20 | #ifdef BOOST_USE_WINDOWS_H |
b32b8144 FG |
21 | |
22 | #include <windows.h> | |
23 | ||
24 | #else | |
25 | ||
26 | struct _RTL_CRITICAL_SECTION; | |
27 | ||
7c673cae FG |
28 | #endif |
29 | ||
30 | namespace boost | |
31 | { | |
32 | ||
33 | namespace detail | |
34 | { | |
35 | ||
36 | #ifndef BOOST_USE_WINDOWS_H | |
37 | ||
38 | struct critical_section | |
39 | { | |
40 | struct critical_section_debug * DebugInfo; | |
41 | long LockCount; | |
42 | long RecursionCount; | |
43 | void * OwningThread; | |
44 | void * LockSemaphore; | |
45 | #if defined(_WIN64) | |
46 | unsigned __int64 SpinCount; | |
47 | #else | |
48 | unsigned long SpinCount; | |
49 | #endif | |
50 | }; | |
51 | ||
b32b8144 | 52 | extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSection(::_RTL_CRITICAL_SECTION *); |
b32b8144 FG |
53 | extern "C" __declspec(dllimport) void __stdcall EnterCriticalSection(::_RTL_CRITICAL_SECTION *); |
54 | extern "C" __declspec(dllimport) void __stdcall LeaveCriticalSection(::_RTL_CRITICAL_SECTION *); | |
55 | extern "C" __declspec(dllimport) void __stdcall DeleteCriticalSection(::_RTL_CRITICAL_SECTION *); | |
7c673cae | 56 | |
92f5a8d4 TL |
57 | typedef ::_RTL_CRITICAL_SECTION rtl_critical_section; |
58 | ||
59 | #else // #ifndef BOOST_USE_WINDOWS_H | |
7c673cae FG |
60 | |
61 | typedef ::CRITICAL_SECTION critical_section; | |
62 | ||
b32b8144 | 63 | using ::InitializeCriticalSection; |
b32b8144 FG |
64 | using ::EnterCriticalSection; |
65 | using ::LeaveCriticalSection; | |
66 | using ::DeleteCriticalSection; | |
67 | ||
92f5a8d4 TL |
68 | typedef ::CRITICAL_SECTION rtl_critical_section; |
69 | ||
7c673cae FG |
70 | #endif // #ifndef BOOST_USE_WINDOWS_H |
71 | ||
72 | class lightweight_mutex | |
73 | { | |
74 | private: | |
75 | ||
76 | critical_section cs_; | |
77 | ||
78 | lightweight_mutex(lightweight_mutex const &); | |
79 | lightweight_mutex & operator=(lightweight_mutex const &); | |
80 | ||
81 | public: | |
82 | ||
83 | lightweight_mutex() | |
84 | { | |
92f5a8d4 | 85 | boost::detail::InitializeCriticalSection(reinterpret_cast< rtl_critical_section* >(&cs_)); |
7c673cae FG |
86 | } |
87 | ||
88 | ~lightweight_mutex() | |
89 | { | |
92f5a8d4 | 90 | boost::detail::DeleteCriticalSection(reinterpret_cast< rtl_critical_section* >(&cs_)); |
7c673cae FG |
91 | } |
92 | ||
93 | class scoped_lock; | |
94 | friend class scoped_lock; | |
95 | ||
96 | class scoped_lock | |
97 | { | |
98 | private: | |
99 | ||
100 | lightweight_mutex & m_; | |
101 | ||
102 | scoped_lock(scoped_lock const &); | |
103 | scoped_lock & operator=(scoped_lock const &); | |
104 | ||
105 | public: | |
106 | ||
107 | explicit scoped_lock(lightweight_mutex & m): m_(m) | |
108 | { | |
92f5a8d4 | 109 | boost::detail::EnterCriticalSection(reinterpret_cast< rtl_critical_section* >(&m_.cs_)); |
7c673cae FG |
110 | } |
111 | ||
112 | ~scoped_lock() | |
113 | { | |
92f5a8d4 | 114 | boost::detail::LeaveCriticalSection(reinterpret_cast< rtl_critical_section* >(&m_.cs_)); |
7c673cae FG |
115 | } |
116 | }; | |
117 | }; | |
118 | ||
119 | } // namespace detail | |
120 | ||
121 | } // namespace boost | |
122 | ||
123 | #endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED |