Chris@16: #ifndef BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
Chris@16: #define BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
Chris@16: 
Chris@16: // MS compatible compilers support #pragma once
Chris@16: 
Chris@16: #if defined(_MSC_VER) && (_MSC_VER >= 1020)
Chris@16: # pragma once
Chris@16: #endif
Chris@16: 
Chris@16: //
Chris@16: //  boost/detail/lwm_win32_cs.hpp
Chris@16: //
Chris@16: //  Copyright (c) 2002, 2003 Peter Dimov
Chris@101: //  Copyright (c) Microsoft Corporation 2014
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See
Chris@16: // accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: 
Chris@101: #include <boost/predef.h>
Chris@101: 
Chris@16: #ifdef BOOST_USE_WINDOWS_H
Chris@16: #  include <windows.h>
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost
Chris@16: {
Chris@16: 
Chris@16: namespace detail
Chris@16: {
Chris@16: 
Chris@16: #ifndef BOOST_USE_WINDOWS_H
Chris@16: 
Chris@16: struct critical_section
Chris@16: {
Chris@16:     struct critical_section_debug * DebugInfo;
Chris@16:     long LockCount;
Chris@16:     long RecursionCount;
Chris@16:     void * OwningThread;
Chris@16:     void * LockSemaphore;
Chris@16: #if defined(_WIN64)
Chris@16:     unsigned __int64 SpinCount;
Chris@16: #else
Chris@16:     unsigned long SpinCount;
Chris@16: #endif
Chris@16: };
Chris@16: 
Chris@101: #if BOOST_PLAT_WINDOWS_RUNTIME
Chris@101: extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSectionEx(critical_section *, unsigned long, unsigned long);
Chris@101: #else
Chris@16: extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSection(critical_section *);
Chris@101: #endif
Chris@16: extern "C" __declspec(dllimport) void __stdcall EnterCriticalSection(critical_section *);
Chris@16: extern "C" __declspec(dllimport) void __stdcall LeaveCriticalSection(critical_section *);
Chris@16: extern "C" __declspec(dllimport) void __stdcall DeleteCriticalSection(critical_section *);
Chris@16: 
Chris@16: #else
Chris@16: 
Chris@16: typedef ::CRITICAL_SECTION critical_section;
Chris@16: 
Chris@16: #endif // #ifndef BOOST_USE_WINDOWS_H
Chris@16: 
Chris@16: class lightweight_mutex
Chris@16: {
Chris@16: private:
Chris@16: 
Chris@16:     critical_section cs_;
Chris@16: 
Chris@16:     lightweight_mutex(lightweight_mutex const &);
Chris@16:     lightweight_mutex & operator=(lightweight_mutex const &);
Chris@16: 
Chris@16: public:
Chris@16: 
Chris@16:     lightweight_mutex()
Chris@16:     {
Chris@101: #if BOOST_PLAT_WINDOWS_RUNTIME
Chris@101:         InitializeCriticalSectionEx(&cs_, 4000, 0);
Chris@101: #else
Chris@16:         InitializeCriticalSection(&cs_);
Chris@101: #endif
Chris@16:     }
Chris@16: 
Chris@16:     ~lightweight_mutex()
Chris@16:     {
Chris@16:         DeleteCriticalSection(&cs_);
Chris@16:     }
Chris@16: 
Chris@16:     class scoped_lock;
Chris@16:     friend class scoped_lock;
Chris@16: 
Chris@16:     class scoped_lock
Chris@16:     {
Chris@16:     private:
Chris@16: 
Chris@16:         lightweight_mutex & m_;
Chris@16: 
Chris@16:         scoped_lock(scoped_lock const &);
Chris@16:         scoped_lock & operator=(scoped_lock const &);
Chris@16: 
Chris@16:     public:
Chris@16: 
Chris@16:         explicit scoped_lock(lightweight_mutex & m): m_(m)
Chris@16:         {
Chris@16:             EnterCriticalSection(&m_.cs_);
Chris@16:         }
Chris@16: 
Chris@16:         ~scoped_lock()
Chris@16:         {
Chris@16:             LeaveCriticalSection(&m_.cs_);
Chris@16:         }
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: } // namespace detail
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED