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annotate deps/Platinum/ThirdParty/Neptune/Source/System/Win32/NptWin32Threads.cpp @ 0:3425707ddbf6

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Initial import (hopefully this mercurial stuff works...)
author fraserofthenight
date Mon, 06 Jul 2009 08:06:28 -0700
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1 /*****************************************************************
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2 |
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3 | Neptune - Threads :: Win32 Implementation
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4 |
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5 | (c) 2001-2008 Gilles Boccon-Gibod
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6 | Author: Gilles Boccon-Gibod (bok@bok.net)
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7 |
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8 ****************************************************************/
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9
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10 /*----------------------------------------------------------------------
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11 | includes
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12 +---------------------------------------------------------------------*/
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13 #if defined(_XBOX)
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14 #include <xtl.h>
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15 #else
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16 #include <windows.h>
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17 #if !defined(_WIN32_WCE)
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18 #include <process.h>
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19 #endif
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20 #endif
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21
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22 #include "NptConfig.h"
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23 #include "NptTypes.h"
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24 #include "NptConstants.h"
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25 #include "NptThreads.h"
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26 #include "NptDebug.h"
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27 #include "NptResults.h"
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28 #include "NptWin32Threads.h"
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29 #include "NptTime.h"
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30 #include "NptSystem.h"
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31 #include "NptLogging.h"
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32
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33 /*----------------------------------------------------------------------
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34 | logging
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35 +---------------------------------------------------------------------*/
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36 NPT_SET_LOCAL_LOGGER("neptune.threads.win32")
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37
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38 /*----------------------------------------------------------------------
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39 | configuration macros
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40 +---------------------------------------------------------------------*/
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41 #if defined(_WIN32_WCE) || defined(_XBOX)
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42 #define NPT_WIN32_USE_CREATE_THREAD
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43 #endif
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44
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45 #if defined(NPT_WIN32_USE_CREATE_THREAD)
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46 #define _beginthreadex(security, stack_size, start_proc, arg, flags, pid) \
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47 CreateThread(security, stack_size, (LPTHREAD_START_ROUTINE) start_proc, \
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48 arg, flags, (LPDWORD)pid)
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49 #define _endthreadex ExitThread
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50 #endif
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51
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52 /*----------------------------------------------------------------------
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53 | NPT_Win32Mutex::NPT_Win32Mutex
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54 +---------------------------------------------------------------------*/
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55 NPT_Win32Mutex::NPT_Win32Mutex()
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56 {
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57 m_Handle = CreateMutex(NULL, FALSE, NULL);
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58 }
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59
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60 /*----------------------------------------------------------------------
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61 | NPT_Win32Mutex::~NPT_Win32Mutex
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62 +---------------------------------------------------------------------*/
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63 NPT_Win32Mutex::~NPT_Win32Mutex()
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64 {
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65 CloseHandle(m_Handle);
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66 }
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67
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68 /*----------------------------------------------------------------------
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69 | NPT_Win32Mutex::Lock
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70 +---------------------------------------------------------------------*/
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71 NPT_Result
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72 NPT_Win32Mutex::Lock()
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73 {
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74 DWORD result = WaitForSingleObject(m_Handle, INFINITE);
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75 if (result == WAIT_OBJECT_0) {
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76 return NPT_SUCCESS;
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77 } else {
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78 return NPT_FAILURE;
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79 }
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80 }
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81
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82 /*----------------------------------------------------------------------
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83 | NPT_Win32Mutex::Unlock
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84 +---------------------------------------------------------------------*/
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85 NPT_Result
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86 NPT_Win32Mutex::Unlock()
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87 {
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88 ReleaseMutex(m_Handle);
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89 return NPT_SUCCESS;
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90 }
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91
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92 /*----------------------------------------------------------------------
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93 | NPT_Mutex::NPT_Mutex
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94 +---------------------------------------------------------------------*/
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95 NPT_Mutex::NPT_Mutex()
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96 {
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97 m_Delegate = new NPT_Win32Mutex();
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98 }
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99
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100 /*----------------------------------------------------------------------
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101 | NPT_Win32CriticalSection::NPT_Win32CriticalSection
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102 +---------------------------------------------------------------------*/
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103 NPT_Win32CriticalSection::NPT_Win32CriticalSection()
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104 {
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105 InitializeCriticalSection(&m_CriticalSection);
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106 }
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107
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108 /*----------------------------------------------------------------------
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109 | NPT_Win32CriticalSection::~NPT_Win32CriticalSection
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110 +---------------------------------------------------------------------*/
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111 NPT_Win32CriticalSection::~NPT_Win32CriticalSection()
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112 {
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113 DeleteCriticalSection(&m_CriticalSection);
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114 }
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115
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116 /*----------------------------------------------------------------------
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117 | NPT_Win32CriticalSection::Lock
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118 +---------------------------------------------------------------------*/
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119 NPT_Result
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120 NPT_Win32CriticalSection::Lock()
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121 {
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122 EnterCriticalSection(&m_CriticalSection);
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123 return NPT_SUCCESS;
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124 }
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125
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126 /*----------------------------------------------------------------------
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127 | NPT_Win32CriticalSection::Unlock
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128 +---------------------------------------------------------------------*/
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129 NPT_Result
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130 NPT_Win32CriticalSection::Unlock()
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131 {
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132 LeaveCriticalSection(&m_CriticalSection);
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133 return NPT_SUCCESS;
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134 }
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135
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136 /*----------------------------------------------------------------------
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137 | NPT_Win32Event::NPT_Win32Event
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138 +---------------------------------------------------------------------*/
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139 NPT_Win32Event::NPT_Win32Event(bool manual /* = false */, bool initial /* = false */)
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140 {
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141 m_Event = CreateEvent(NULL, (manual==true)?TRUE:FALSE, (initial==true)?TRUE:FALSE, NULL);
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142 }
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143
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144 /*----------------------------------------------------------------------
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145 | NPT_Win32Event::~NPT_Win32Event
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146 +---------------------------------------------------------------------*/
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147 NPT_Win32Event::~NPT_Win32Event()
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148 {
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149 CloseHandle(m_Event);
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150 }
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151
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152 /*----------------------------------------------------------------------
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153 | NPT_Win32Event::Wait
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154 +---------------------------------------------------------------------*/
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155 NPT_Result
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156 NPT_Win32Event::Wait(NPT_Timeout timeout)
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157 {
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158 if (m_Event) {
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159 DWORD result = WaitForSingleObject(m_Event, timeout==NPT_TIMEOUT_INFINITE?INFINITE:timeout);
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160 if (result == WAIT_TIMEOUT) {
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161 return NPT_ERROR_TIMEOUT;
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162 }
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163 if (result != WAIT_OBJECT_0 && result != WAIT_ABANDONED) {
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164 return NPT_FAILURE;
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165 }
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166 }
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167 return NPT_SUCCESS;
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168 }
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169
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170 /*----------------------------------------------------------------------
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171 | NPT_Win32Event::Signal
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172 +---------------------------------------------------------------------*/
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173 void
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174 NPT_Win32Event::Signal()
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175 {
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176 SetEvent(m_Event);
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177 }
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178
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179 /*----------------------------------------------------------------------
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180 | NPT_Win32Event::Reset
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181 +---------------------------------------------------------------------*/
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182 void
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183 NPT_Win32Event::Reset()
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184 {
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185 ResetEvent(m_Event);
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186 }
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187
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188 /*----------------------------------------------------------------------
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189 | NPT_Win32SharedVariable
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190 +---------------------------------------------------------------------*/
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191 class NPT_Win32SharedVariable : public NPT_SharedVariableInterface
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192 {
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193 public:
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194 // methods
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195 NPT_Win32SharedVariable(int value);
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196 ~NPT_Win32SharedVariable();
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197 void SetValue(int value);
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198 int GetValue();
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199 NPT_Result WaitUntilEquals(int value, NPT_Timeout timeout = NPT_TIMEOUT_INFINITE);
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200 NPT_Result WaitWhileEquals(int value, NPT_Timeout timeout = NPT_TIMEOUT_INFINITE);
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201
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202 private:
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203 // members
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204 volatile int m_Value;
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205 NPT_Mutex m_Lock;
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206 NPT_Win32Event m_Event;
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207 };
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208
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209 /*----------------------------------------------------------------------
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210 | NPT_Win32SharedVariable::NPT_Win32SharedVariable
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211 +---------------------------------------------------------------------*/
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212 NPT_Win32SharedVariable::NPT_Win32SharedVariable(int value) :
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213 m_Value(value)
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214 {
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215 }
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216
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217 /*----------------------------------------------------------------------
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218 | NPT_Win32SharedVariable::~NPT_Win32SharedVariable
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219 +---------------------------------------------------------------------*/
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220 NPT_Win32SharedVariable::~NPT_Win32SharedVariable()
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221 {
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222 }
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223
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224 /*----------------------------------------------------------------------
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225 | NPT_Win32SharedVariable::SetValue
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226 +---------------------------------------------------------------------*/
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227 void
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228 NPT_Win32SharedVariable::SetValue(int value)
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229 {
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230 m_Lock.Lock();
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231 if (value != m_Value) {
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232 m_Value = value;
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233 m_Event.Signal();
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234 }
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235 m_Lock.Unlock();
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236 }
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237
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238 /*----------------------------------------------------------------------
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239 | NPT_Win32SharedVariable::GetValue
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240 +---------------------------------------------------------------------*/
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241 int
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242 NPT_Win32SharedVariable::GetValue()
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243 {
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244 // reading an integer should be atomic on all Win32 platforms
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245 return m_Value;
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246 }
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247
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248 /*----------------------------------------------------------------------
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249 | NPT_Win32SharedVariable::WaitUntilEquals
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250 +---------------------------------------------------------------------*/
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251 NPT_Result
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252 NPT_Win32SharedVariable::WaitUntilEquals(int value, NPT_Timeout timeout)
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253 {
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254 do {
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255 m_Lock.Lock();
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256 if (m_Value == value) {
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257 break;
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258 }
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259 m_Lock.Unlock();
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260 {
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261 NPT_Result result = m_Event.Wait(timeout);
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262 if (NPT_FAILED(result)) return result;
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263 }
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264 } while (1);
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265
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266 m_Lock.Unlock();
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267
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268 return NPT_SUCCESS;
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269 }
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270
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271 /*----------------------------------------------------------------------
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272 | NPT_Win32SharedVariable::WaitWhileEquals
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273 +---------------------------------------------------------------------*/
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274 NPT_Result
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275 NPT_Win32SharedVariable::WaitWhileEquals(int value, NPT_Timeout timeout)
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276 {
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277 do {
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278 m_Lock.Lock();
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279 if (m_Value != value) {
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280 break;
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281 }
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282 m_Lock.Unlock();
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283 {
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284 NPT_Result result = m_Event.Wait(timeout);
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285 if (NPT_FAILED(result)) return result;
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286 }
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287 } while (1);
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288
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289 m_Lock.Unlock();
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290
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291 return NPT_SUCCESS;
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292 }
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293
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294 /*----------------------------------------------------------------------
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295 | NPT_SharedVariable::NPT_SharedVariable
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296 +---------------------------------------------------------------------*/
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297 NPT_SharedVariable::NPT_SharedVariable(int value)
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298 {
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299 m_Delegate = new NPT_Win32SharedVariable(value);
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300 }
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301
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302 /*----------------------------------------------------------------------
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303 | NPT_Win32AtomicVariable
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304 +---------------------------------------------------------------------*/
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305 class NPT_Win32AtomicVariable : public NPT_AtomicVariableInterface
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306 {
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307 public:
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308 // methods
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309 NPT_Win32AtomicVariable(int value);
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310 ~NPT_Win32AtomicVariable();
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311 int Increment();
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312 int Decrement();
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313 void SetValue(int value);
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314 int GetValue();
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315
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316 private:
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317 // members
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318 volatile LONG m_Value;
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319 };
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320
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321 /*----------------------------------------------------------------------
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322 | NPT_Win32AtomicVariable::NPT_Win32AtomicVariable
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323 +---------------------------------------------------------------------*/
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324 NPT_Win32AtomicVariable::NPT_Win32AtomicVariable(int value) :
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325 m_Value(value)
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326 {
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327 }
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328
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329 /*----------------------------------------------------------------------
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330 | NPT_Win32AtomicVariable::~NPT_Win32AtomicVariable
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331 +---------------------------------------------------------------------*/
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332 NPT_Win32AtomicVariable::~NPT_Win32AtomicVariable()
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333 {
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334 }
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335
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336 /*----------------------------------------------------------------------
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337 | NPT_Win32AtomicVariable::Increment
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338 +---------------------------------------------------------------------*/
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339 int
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340 NPT_Win32AtomicVariable::Increment()
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341 {
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342 return InterlockedIncrement(const_cast<LONG*>(&m_Value));
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343 }
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344
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345 /*----------------------------------------------------------------------
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346 | NPT_Win32AtomicVariable::Decrement
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347 +---------------------------------------------------------------------*/
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348 int
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349 NPT_Win32AtomicVariable::Decrement()
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350 {
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351 return InterlockedDecrement(const_cast<LONG*>(&m_Value));
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352 }
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353
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354 /*----------------------------------------------------------------------
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355 | NPT_Win32AtomicVariable::SetValue
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356 +---------------------------------------------------------------------*/
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357 void
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358 NPT_Win32AtomicVariable::SetValue(int value)
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359 {
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360 m_Value = value;
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361 }
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362
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363 /*----------------------------------------------------------------------
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364 | NPT_Win32AtomicVariable::GetValue
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365 +---------------------------------------------------------------------*/
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366 int
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367 NPT_Win32AtomicVariable::GetValue()
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368 {
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369 return m_Value;
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370 }
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371
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372 /*----------------------------------------------------------------------
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373 | NPT_AtomicVariable::NPT_AtomicVariable
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374 +---------------------------------------------------------------------*/
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375 NPT_AtomicVariable::NPT_AtomicVariable(int value)
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376 {
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377 m_Delegate = new NPT_Win32AtomicVariable(value);
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378 }
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379
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380 /*----------------------------------------------------------------------
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381 | NPT_Win32Thread
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382 +---------------------------------------------------------------------*/
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383 class NPT_Win32Thread : public NPT_ThreadInterface
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384 {
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385 public:
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386 // methods
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387 NPT_Win32Thread(NPT_Thread* delegator,
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388 NPT_Runnable& target,
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389 bool detached);
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390 ~NPT_Win32Thread();
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391 NPT_Result Start();
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392 NPT_Result Wait(NPT_Timeout timeout = NPT_TIMEOUT_INFINITE);
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393
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394 private:
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395 // methods
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396 static unsigned int __stdcall EntryPoint(void* argument);
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397
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398 // NPT_Runnable methods
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399 void Run();
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400
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401 // NPT_Interruptible methods
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402 NPT_Result Interrupt() { return NPT_ERROR_NOT_IMPLEMENTED; }
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403
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404 // members
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405 NPT_Thread* m_Delegator;
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406 NPT_Runnable& m_Target;
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407 bool m_Detached;
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408 HANDLE m_ThreadHandle;
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409 DWORD m_ThreadId;
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410 };
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411
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412 /*----------------------------------------------------------------------
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413 | NPT_Win32Thread::NPT_Win32Thread
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414 +---------------------------------------------------------------------*/
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415 NPT_Win32Thread::NPT_Win32Thread(NPT_Thread* delegator,
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416 NPT_Runnable& target,
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417 bool detached) :
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418 m_Delegator(delegator),
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419 m_Target(target),
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420 m_Detached(detached),
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421 m_ThreadHandle(0),
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422 m_ThreadId(0)
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423 {
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424 }
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425
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fraserofthenight
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diff changeset
426 /*----------------------------------------------------------------------
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427 | NPT_Win32Thread::~NPT_Win32Thread
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428 +---------------------------------------------------------------------*/
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429 NPT_Win32Thread::~NPT_Win32Thread()
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430 {
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431 if (!m_Detached) {
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432 // we're not detached, and not in the Run() method, so we need to
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433 // wait until the thread is done
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434 Wait();
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435 }
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436
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437 // close the thread handle
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438 #if defined(NPT_WIN32_USE_CREATE_THREAD)
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439 CloseHandle(m_ThreadHandle);
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440 #endif
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441 }
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442
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fraserofthenight
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443 /*----------------------------------------------------------------------
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444 | NPT_Win32Thread::EntryPoint
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445 +---------------------------------------------------------------------*/
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fraserofthenight
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446 unsigned int __stdcall
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447 NPT_Win32Thread::EntryPoint(void* argument)
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448 {
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449 NPT_Win32Thread* thread = reinterpret_cast<NPT_Win32Thread*>(argument);
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450
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451 NPT_LOG_FINE("thread in =======================");
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452
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453 // set random seed per thread
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454 NPT_TimeStamp now;
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455 NPT_System::GetCurrentTimeStamp(now);
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456 NPT_System::SetRandomSeed(now.m_NanoSeconds + NPT_Thread::GetCurrentThreadId());
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457
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fraserofthenight
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458 // run the thread
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459 thread->Run();
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460
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461 // Logging here will cause a crash on exit because LogManager may already be destroyed
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462 //NPT_LOG_FINE("thread out ======================");
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parents:
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463
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fraserofthenight
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464 // if the thread is detached, delete it
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parents:
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465 if (thread->m_Detached) {
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466 delete thread->m_Delegator;
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467 }
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468
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469 // end the thread
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470 _endthreadex(0);
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471
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fraserofthenight
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472 // done
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473 return 0;
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parents:
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474 }
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475
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parents:
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476 /*----------------------------------------------------------------------
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parents:
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477 | NPT_Win32Thread::Start
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fraserofthenight
parents:
diff changeset
478 +---------------------------------------------------------------------*/
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parents:
diff changeset
479 NPT_Result
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parents:
diff changeset
480 NPT_Win32Thread::Start()
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parents:
diff changeset
481 {
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fraserofthenight
parents:
diff changeset
482 if (m_ThreadHandle > 0) {
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fraserofthenight
parents:
diff changeset
483 // failed
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diff changeset
484 NPT_LOG_WARNING("thread already started !");
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485 return NPT_ERROR_INVALID_STATE;
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parents:
diff changeset
486 }
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diff changeset
487
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488 NPT_LOG_FINE("creating thread");
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parents:
diff changeset
489
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fraserofthenight
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diff changeset
490 // create the native thread
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parents:
diff changeset
491 #if defined(_WIN32_WCE)
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diff changeset
492 DWORD thread_id;
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parents:
diff changeset
493 #else
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parents:
diff changeset
494 unsigned int thread_id;
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parents:
diff changeset
495 #endif
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fraserofthenight
parents:
diff changeset
496 // create a stack local detached, as this object
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fraserofthenight
parents:
diff changeset
497 // may already be deleted when _beginthreadex returns and
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fraserofthenight
parents:
diff changeset
498 // before we get to call detach on the given thread
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fraserofthenight
parents:
diff changeset
499 bool detached = m_Detached;
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diff changeset
500
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diff changeset
501 m_ThreadHandle = (HANDLE)
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parents:
diff changeset
502 _beginthreadex(NULL,
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parents:
diff changeset
503 NPT_CONFIG_THREAD_STACK_SIZE,
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fraserofthenight
parents:
diff changeset
504 EntryPoint,
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parents:
diff changeset
505 reinterpret_cast<void*>(this),
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506 0,
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diff changeset
507 &thread_id);
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fraserofthenight
parents:
diff changeset
508 if (m_ThreadHandle == 0) {
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fraserofthenight
parents:
diff changeset
509 // failed
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diff changeset
510 m_ThreadId = 0;
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511 return NPT_FAILURE;
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parents:
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512 }
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fraserofthenight
parents:
diff changeset
513
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fraserofthenight
parents:
diff changeset
514 if (!detached) {
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fraserofthenight
parents:
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515 m_ThreadId = (DWORD)thread_id;
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parents:
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516 }
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fraserofthenight
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diff changeset
517
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518 return NPT_SUCCESS;
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parents:
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519 }
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fraserofthenight
parents:
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520
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fraserofthenight
parents:
diff changeset
521 /*----------------------------------------------------------------------
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fraserofthenight
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522 | NPT_Win32Thread::Run
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fraserofthenight
parents:
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523 +---------------------------------------------------------------------*/
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fraserofthenight
parents:
diff changeset
524 void
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fraserofthenight
parents:
diff changeset
525 NPT_Win32Thread::Run()
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fraserofthenight
parents:
diff changeset
526 {
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fraserofthenight
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527 m_Target.Run();
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fraserofthenight
parents:
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528 }
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fraserofthenight
parents:
diff changeset
529
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fraserofthenight
parents:
diff changeset
530 /*----------------------------------------------------------------------
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fraserofthenight
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531 | NPT_Win32Thread::Wait
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532 +---------------------------------------------------------------------*/
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533 NPT_Result
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534 NPT_Win32Thread::Wait(NPT_Timeout timeout /* = NPT_TIMEOUT_INFINITE */)
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535 {
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536 // check that we're not detached
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537 if (m_ThreadHandle == 0 || m_Detached) {
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538 return NPT_FAILURE;
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539 }
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540
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541 // wait for the thread to finish
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542 // Logging here will cause a crash on exit because LogManager may already be destroyed
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543 //NPT_LOG_FINE_1("joining thread id %d", m_ThreadId);
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544 DWORD result = WaitForSingleObject(m_ThreadHandle,
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545 timeout==NPT_TIMEOUT_INFINITE?INFINITE:timeout);
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546 if (result != WAIT_OBJECT_0) {
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547 return NPT_FAILURE;
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548 } else {
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549 return NPT_SUCCESS;
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550 }
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551 }
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552
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553 /*----------------------------------------------------------------------
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554 | NPT_Thread::GetCurrentThreadId
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555 +---------------------------------------------------------------------*/
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556 NPT_Thread::ThreadId
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557 NPT_Thread::GetCurrentThreadId()
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558 {
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559 return ::GetCurrentThreadId();
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560 }
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561
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562 /*----------------------------------------------------------------------
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563 | NPT_Thread::NPT_Thread
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564 +---------------------------------------------------------------------*/
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565 NPT_Thread::NPT_Thread(bool detached)
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566 {
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567 m_Delegate = new NPT_Win32Thread(this, *this, detached);
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568 }
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569
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570 /*----------------------------------------------------------------------
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571 | NPT_Thread::NPT_Thread
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572 +---------------------------------------------------------------------*/
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573 NPT_Thread::NPT_Thread(NPT_Runnable& target, bool detached)
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574 {
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575 m_Delegate = new NPT_Win32Thread(this, target, detached);
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576 }