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