stc/exp/ml_stc_linux_make_v1.0/include/boost/smart_ptr/detail/lwm_win32_cs.hpp

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