1 | #ifndef BOOST_WIN32_THREAD_PRIMITIVES_HPP
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2 | #define BOOST_WIN32_THREAD_PRIMITIVES_HPP
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3 |
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4 | // win32_thread_primitives.hpp
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5 | //
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6 | // (C) Copyright 2005-7 Anthony Williams
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7 | // (C) Copyright 2007 David Deakins
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8 | //
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9 | // Distributed under the Boost Software License, Version 1.0. (See
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10 | // accompanying file LICENSE_1_0.txt or copy at
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11 | // http://www.boost.org/LICENSE_1_0.txt)
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12 |
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13 | #include <boost/config.hpp>
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14 | #include <boost/assert.hpp>
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15 | #include <boost/thread/exceptions.hpp>
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16 | #include <boost/detail/interlocked.hpp>
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17 | #include <algorithm>
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18 |
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19 | #if defined( BOOST_USE_WINDOWS_H )
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20 | # include <windows.h>
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21 |
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22 | namespace boost
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23 | {
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24 | namespace detail
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25 | {
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26 | namespace win32
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27 | {
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28 | typedef ULONG_PTR ulong_ptr;
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29 | typedef HANDLE handle;
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30 | unsigned const infinite=INFINITE;
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31 | unsigned const timeout=WAIT_TIMEOUT;
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32 | handle const invalid_handle_value=INVALID_HANDLE_VALUE;
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33 |
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34 | # ifdef BOOST_NO_ANSI_APIS
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35 | using ::CreateMutexW;
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36 | using ::CreateEventW;
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37 | using ::CreateSemaphoreW;
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38 | # else
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39 | using ::CreateMutexA;
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40 | using ::CreateEventA;
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41 | using ::CreateSemaphoreA;
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42 | # endif
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43 | using ::CloseHandle;
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44 | using ::ReleaseMutex;
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45 | using ::ReleaseSemaphore;
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46 | using ::SetEvent;
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47 | using ::ResetEvent;
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48 | using ::WaitForMultipleObjects;
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49 | using ::WaitForSingleObject;
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50 | using ::GetCurrentProcessId;
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51 | using ::GetCurrentThreadId;
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52 | using ::GetCurrentThread;
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53 | using ::GetCurrentProcess;
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54 | using ::DuplicateHandle;
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55 | using ::SleepEx;
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56 | using ::Sleep;
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57 | using ::QueueUserAPC;
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58 | using ::GetTickCount;
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59 | }
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60 | }
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61 | }
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62 | #elif defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ )
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63 |
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64 | # ifdef UNDER_CE
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65 | # ifndef WINAPI
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66 | # ifndef _WIN32_WCE_EMULATION
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67 | # define WINAPI __cdecl // Note this doesn't match the desktop definition
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68 | # else
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69 | # define WINAPI __stdcall
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70 | # endif
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71 | # endif
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72 |
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73 | # ifdef __cplusplus
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74 | extern "C" {
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75 | # endif
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76 | typedef int BOOL;
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77 | typedef unsigned long DWORD;
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78 | typedef void* HANDLE;
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79 |
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80 | # include <kfuncs.h>
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81 | # ifdef __cplusplus
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82 | }
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83 | # endif
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84 | # endif
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85 |
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86 | namespace boost
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87 | {
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88 | namespace detail
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89 | {
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90 | namespace win32
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91 | {
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92 |
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93 | # ifdef _WIN64
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94 | typedef unsigned __int64 ulong_ptr;
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95 | # else
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96 | typedef unsigned long ulong_ptr;
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97 | # endif
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98 | typedef void* handle;
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99 | unsigned const infinite=~0U;
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100 | unsigned const timeout=258U;
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101 | handle const invalid_handle_value=(handle)(-1);
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102 |
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103 | extern "C"
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104 | {
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105 | struct _SECURITY_ATTRIBUTES;
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106 | # ifdef BOOST_NO_ANSI_APIS
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107 | __declspec(dllimport) void* __stdcall CreateMutexW(_SECURITY_ATTRIBUTES*,int,wchar_t const*);
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108 | __declspec(dllimport) void* __stdcall CreateSemaphoreW(_SECURITY_ATTRIBUTES*,long,long,wchar_t const*);
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109 | __declspec(dllimport) void* __stdcall CreateEventW(_SECURITY_ATTRIBUTES*,int,int,wchar_t const*);
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110 | # else
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111 | __declspec(dllimport) void* __stdcall CreateMutexA(_SECURITY_ATTRIBUTES*,int,char const*);
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112 | __declspec(dllimport) void* __stdcall CreateSemaphoreA(_SECURITY_ATTRIBUTES*,long,long,char const*);
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113 | __declspec(dllimport) void* __stdcall CreateEventA(_SECURITY_ATTRIBUTES*,int,int,char const*);
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114 | # endif
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115 | __declspec(dllimport) int __stdcall CloseHandle(void*);
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116 | __declspec(dllimport) int __stdcall ReleaseMutex(void*);
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117 | __declspec(dllimport) unsigned long __stdcall WaitForSingleObject(void*,unsigned long);
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118 | __declspec(dllimport) unsigned long __stdcall WaitForMultipleObjects(unsigned long nCount,void* const * lpHandles,int bWaitAll,unsigned long dwMilliseconds);
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119 | __declspec(dllimport) int __stdcall ReleaseSemaphore(void*,long,long*);
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120 | __declspec(dllimport) int __stdcall DuplicateHandle(void*,void*,void*,void**,unsigned long,int,unsigned long);
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121 | __declspec(dllimport) unsigned long __stdcall SleepEx(unsigned long,int);
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122 | __declspec(dllimport) void __stdcall Sleep(unsigned long);
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123 | typedef void (__stdcall *queue_user_apc_callback_function)(ulong_ptr);
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124 | __declspec(dllimport) unsigned long __stdcall QueueUserAPC(queue_user_apc_callback_function,void*,ulong_ptr);
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125 |
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126 | __declspec(dllimport) unsigned long __stdcall GetTickCount();
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127 |
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128 | # ifndef UNDER_CE
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129 | __declspec(dllimport) unsigned long __stdcall GetCurrentProcessId();
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130 | __declspec(dllimport) unsigned long __stdcall GetCurrentThreadId();
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131 | __declspec(dllimport) void* __stdcall GetCurrentThread();
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132 | __declspec(dllimport) void* __stdcall GetCurrentProcess();
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133 | __declspec(dllimport) int __stdcall SetEvent(void*);
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134 | __declspec(dllimport) int __stdcall ResetEvent(void*);
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135 | # else
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136 | using ::GetCurrentProcessId;
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137 | using ::GetCurrentThreadId;
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138 | using ::GetCurrentThread;
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139 | using ::GetCurrentProcess;
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140 | using ::SetEvent;
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141 | using ::ResetEvent;
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142 | # endif
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143 | }
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144 | }
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145 | }
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146 | }
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147 | #else
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148 | # error "Win32 functions not available"
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149 | #endif
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150 |
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151 | #include <boost/config/abi_prefix.hpp>
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152 |
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153 | namespace boost
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154 | {
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155 | namespace detail
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156 | {
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157 | namespace win32
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158 | {
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159 | enum event_type
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160 | {
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161 | auto_reset_event=false,
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162 | manual_reset_event=true
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163 | };
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164 |
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165 | enum initial_event_state
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166 | {
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167 | event_initially_reset=false,
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168 | event_initially_set=true
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169 | };
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170 |
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171 | inline handle create_anonymous_event(event_type type,initial_event_state state)
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172 | {
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173 | #if !defined(BOOST_NO_ANSI_APIS)
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174 | handle const res=win32::CreateEventA(0,type,state,0);
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175 | #else
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176 | handle const res=win32::CreateEventW(0,type,state,0);
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177 | #endif
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178 | if(!res)
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179 | {
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180 | throw thread_resource_error();
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181 | }
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182 | return res;
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183 | }
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184 |
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185 | inline handle create_anonymous_semaphore(long initial_count,long max_count)
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186 | {
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187 | #if !defined(BOOST_NO_ANSI_APIS)
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188 | handle const res=CreateSemaphoreA(0,initial_count,max_count,0);
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189 | #else
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190 | handle const res=CreateSemaphoreW(0,initial_count,max_count,0);
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191 | #endif
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192 | if(!res)
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193 | {
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194 | throw thread_resource_error();
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195 | }
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196 | return res;
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197 | }
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198 |
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199 | inline handle duplicate_handle(handle source)
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200 | {
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201 | handle const current_process=GetCurrentProcess();
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202 | long const same_access_flag=2;
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203 | handle new_handle=0;
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204 | bool const success=DuplicateHandle(current_process,source,current_process,&new_handle,0,false,same_access_flag)!=0;
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205 | if(!success)
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206 | {
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207 | throw thread_resource_error();
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208 | }
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209 | return new_handle;
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210 | }
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211 |
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212 | inline void release_semaphore(handle semaphore,long count)
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213 | {
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214 | BOOST_VERIFY(ReleaseSemaphore(semaphore,count,0)!=0);
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215 | }
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216 |
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217 | class handle_manager
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218 | {
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219 | private:
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220 | handle handle_to_manage;
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221 | handle_manager(handle_manager&);
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222 | handle_manager& operator=(handle_manager&);
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223 |
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224 | void cleanup()
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225 | {
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226 | if(handle_to_manage && handle_to_manage!=invalid_handle_value)
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227 | {
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228 | BOOST_VERIFY(CloseHandle(handle_to_manage));
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229 | }
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230 | }
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231 |
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232 | public:
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233 | explicit handle_manager(handle handle_to_manage_):
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234 | handle_to_manage(handle_to_manage_)
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235 | {}
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236 | handle_manager():
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237 | handle_to_manage(0)
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238 | {}
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239 |
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240 | handle_manager& operator=(handle new_handle)
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241 | {
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242 | cleanup();
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243 | handle_to_manage=new_handle;
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244 | return *this;
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245 | }
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246 |
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247 | operator handle() const
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248 | {
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249 | return handle_to_manage;
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250 | }
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251 |
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252 | handle duplicate() const
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253 | {
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254 | return duplicate_handle(handle_to_manage);
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255 | }
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256 |
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257 | void swap(handle_manager& other)
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258 | {
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259 | std::swap(handle_to_manage,other.handle_to_manage);
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260 | }
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261 |
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262 | handle release()
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263 | {
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264 | handle const res=handle_to_manage;
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265 | handle_to_manage=0;
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266 | return res;
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267 | }
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268 |
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269 | bool operator!() const
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270 | {
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271 | return !handle_to_manage;
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272 | }
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273 |
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274 | ~handle_manager()
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275 | {
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276 | cleanup();
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277 | }
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278 | };
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279 |
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280 | }
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281 | }
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282 | }
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283 |
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284 | #if defined(BOOST_MSVC) && (_MSC_VER>=1400) && !defined(UNDER_CE)
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285 |
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286 | namespace boost
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287 | {
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288 | namespace detail
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289 | {
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290 | namespace win32
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291 | {
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292 | #if _MSC_VER==1400
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293 | extern "C" unsigned char _interlockedbittestandset(long *a,long b);
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294 | extern "C" unsigned char _interlockedbittestandreset(long *a,long b);
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295 | #else
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296 | extern "C" unsigned char _interlockedbittestandset(volatile long *a,long b);
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297 | extern "C" unsigned char _interlockedbittestandreset(volatile long *a,long b);
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298 | #endif
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299 |
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300 | #if !defined(_M_IA64)
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301 | #pragma intrinsic(_interlockedbittestandset)
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302 | #pragma intrinsic(_interlockedbittestandreset)
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303 |
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304 | inline bool interlocked_bit_test_and_set(long* x,long bit)
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305 | {
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306 | return _interlockedbittestandset(x,bit)!=0;
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307 | }
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308 |
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309 | inline bool interlocked_bit_test_and_reset(long* x,long bit)
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310 | {
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311 | return _interlockedbittestandreset(x,bit)!=0;
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312 | }
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313 | #else
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314 | inline bool interlocked_bit_test_and_set(long* x,long bit)
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315 | {
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316 | return InterlockedBitTestAndSet(x,bit)!=0;
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317 | }
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318 |
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319 | inline bool interlocked_bit_test_and_reset(long* x,long bit)
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320 | {
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321 | return InterlockedBitTestAndReset(x,bit)!=0;
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322 | }
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323 | #endif
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324 | }
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325 | }
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326 | }
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327 | #define BOOST_THREAD_BTS_DEFINED
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328 | #elif (defined(BOOST_MSVC) || defined(BOOST_INTEL_WIN)) && defined(_M_IX86)
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329 | namespace boost
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330 | {
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331 | namespace detail
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332 | {
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333 | namespace win32
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334 | {
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335 | inline bool interlocked_bit_test_and_set(long* x,long bit)
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336 | {
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337 | __asm {
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338 | mov eax,bit;
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339 | mov edx,x;
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340 | lock bts [edx],eax;
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341 | setc al;
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342 | };
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343 | }
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344 |
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345 | inline bool interlocked_bit_test_and_reset(long* x,long bit)
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346 | {
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347 | __asm {
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348 | mov eax,bit;
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349 | mov edx,x;
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350 | lock btr [edx],eax;
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351 | setc al;
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352 | };
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353 | }
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354 |
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355 | }
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356 | }
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357 | }
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358 | #elif (defined(BOOST_MSVC) || defined(BOOST_INTEL_WIN)) && defined(_M_IA64)
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359 | namespace boost
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360 | {
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361 | namespace detail
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362 | {
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363 | namespace win32
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364 | {
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365 | inline bool interlocked_bit_test_and_set(long* x,long bit)
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366 | {
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367 | InterlockedBitTestAndSet(x,bit);
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368 | }
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369 |
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370 | inline bool interlocked_bit_test_and_reset(long* x,long bit)
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371 | {
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372 | InterlockedBitTestAndReset(x,bit);
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373 | }
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374 | }
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375 | }
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376 | }
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377 | #define BOOST_THREAD_BTS_DEFINED
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378 | #endif
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379 |
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380 | #ifndef BOOST_THREAD_BTS_DEFINED
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381 |
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382 | namespace boost
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383 | {
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384 | namespace detail
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385 | {
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386 | namespace win32
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387 | {
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388 | inline bool interlocked_bit_test_and_set(long* x,long bit)
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389 | {
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390 | long const value=1<<bit;
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391 | long old=*x;
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392 | do
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393 | {
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394 | long const current=BOOST_INTERLOCKED_COMPARE_EXCHANGE(x,old|value,old);
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395 | if(current==old)
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396 | {
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397 | break;
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398 | }
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399 | old=current;
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400 | }
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401 | while(true);
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402 | return (old&value)!=0;
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403 | }
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404 |
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405 | inline bool interlocked_bit_test_and_reset(long* x,long bit)
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406 | {
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407 | long const value=1<<bit;
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408 | long old=*x;
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409 | do
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410 | {
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411 | long const current=BOOST_INTERLOCKED_COMPARE_EXCHANGE(x,old&~value,old);
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412 | if(current==old)
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413 | {
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414 | break;
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415 | }
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416 | old=current;
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417 | }
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418 | while(true);
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419 | return (old&value)!=0;
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420 | }
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421 | }
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422 | }
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423 | }
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424 | #endif
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425 |
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426 | #include <boost/config/abi_suffix.hpp>
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427 |
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428 | #endif
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