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annotate deps/Platinum/ThirdParty/Neptune/Source/System/PSP/NptPSPThreads.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 :: PSP Implementation
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4 |
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5 | (c) 2001-2002 Gilles Boccon-Gibod
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6 | Author: Sylvain Rebaud
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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 #include "NptConfig.h"
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14 #include "NptTypes.h"
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15 #include "NptThreads.h"
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16 #include "NptSystem.h"
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17 #include "NptDebug.h"
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18
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19 #include <stdio.h>
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20
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21 #include <kernel.h>
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22 #include <psptypes.h>
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23 #include <psperror.h>
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24
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25 /*----------------------------------------------------------------------
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26 | NPT_Mutex
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27 +---------------------------------------------------------------------*/
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28 class NPT_PSPMutex : public NPT_MutexInterface
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29 {
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30 public:
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31 // methods
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32 NPT_PSPMutex();
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33 ~NPT_PSPMutex();
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34 NPT_Result Lock();
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35 NPT_Result Unlock();
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36
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37 private:
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38 SceUID m_semaphore;
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39 };
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40
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41 /*----------------------------------------------------------------------
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42 | NPT_PSPMutex::NPT_PSPMutex
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43 +---------------------------------------------------------------------*/
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44 NPT_PSPMutex::NPT_PSPMutex()
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45 {
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46 char sema_name[256];
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47 sprintf(sema_name, "sema_%d", (int)NPT_System::GetSystem()->GetRandomInteger());
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48 m_semaphore = sceKernelCreateSema(sema_name, SCE_KERNEL_SA_THFIFO, 1, 1, NULL);
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49 }
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50
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51 /*----------------------------------------------------------------------
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52 | NPT_PSPMutex::~NPT_PSPMutex
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53 +---------------------------------------------------------------------*/
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54 NPT_PSPMutex::~NPT_PSPMutex()
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55 {
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56 sceKernelDeleteSema(m_semaphore);
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57 }
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58
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59 /*----------------------------------------------------------------------
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60 | NPT_PSPMutex::Lock
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61 +---------------------------------------------------------------------*/
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62 NPT_Result
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63 NPT_PSPMutex::Lock()
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64 {
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65 sceKernelWaitSema(m_semaphore, 1, NULL);
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66 return NPT_SUCCESS;
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67 }
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68
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69 /*----------------------------------------------------------------------
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70 | NPT_PSPMutex::Unlock
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71 +---------------------------------------------------------------------*/
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72 NPT_Result
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73 NPT_PSPMutex::Unlock()
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74 {
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75 sceKernelSignalSema(m_semaphore, 1);
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76 return NPT_SUCCESS;
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77 }
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78
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79 /*----------------------------------------------------------------------
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80 | NPT_Mutex::NPT_Mutex
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81 +---------------------------------------------------------------------*/
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82 NPT_Mutex::NPT_Mutex()
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83 {
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84 m_Delegate = new NPT_PSPMutex();
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85 }
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86
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87 /*----------------------------------------------------------------------
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88 | NPT_PSPSharedVariable
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89 +---------------------------------------------------------------------*/
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90 class NPT_PSPSharedVariable : public NPT_SharedVariableInterface
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91 {
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92 public:
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93 // methods
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94 NPT_PSPSharedVariable(NPT_Integer value);
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95 ~NPT_PSPSharedVariable();
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96 NPT_Result SetValue(NPT_Integer value);
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97 NPT_Result GetValue(NPT_Integer& value);
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98 NPT_Result WaitUntilEquals(NPT_Integer value, NPT_Timeout timeout = NPT_TIMEOUT_INFINITE);
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99 NPT_Result WaitWhileEquals(NPT_Integer value, NPT_Timeout timeout = NPT_TIMEOUT_INFINITE);
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100
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101 private:
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102 // members
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103 volatile NPT_Integer m_Value;
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104 NPT_Mutex m_Lock;
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105 };
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106
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107 /*----------------------------------------------------------------------
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108 | NPT_PSPSharedVariable::NPT_PSPSharedVariable
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109 +---------------------------------------------------------------------*/
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110 NPT_PSPSharedVariable::NPT_PSPSharedVariable(NPT_Integer value) :
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111 m_Value(value)
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112 {
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113 }
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114
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115 /*----------------------------------------------------------------------
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116 | NPT_PSPSharedVariable::~NPT_PSPSharedVariable
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117 +---------------------------------------------------------------------*/
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118 NPT_PSPSharedVariable::~NPT_PSPSharedVariable()
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119 {
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120 }
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121
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122 /*----------------------------------------------------------------------
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123 | NPT_PSPSharedVariable::SetValue
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124 +---------------------------------------------------------------------*/
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125 NPT_Result
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126 NPT_PSPSharedVariable::SetValue(NPT_Integer value)
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127 {
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128 m_Lock.Lock();
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129 m_Value = value;
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130 m_Lock.Unlock();
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131
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132 return NPT_SUCCESS;
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133 }
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134
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135 /*----------------------------------------------------------------------
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136 | NPT_PSPSharedVariable::GetValue
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137 +---------------------------------------------------------------------*/
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138 NPT_Result
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139 NPT_PSPSharedVariable::GetValue(NPT_Integer& value)
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140 {
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141 // reading an integer should be atomic on most platforms
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142 value = m_Value;
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143
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144 return NPT_SUCCESS;
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145 }
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146
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147 /*----------------------------------------------------------------------
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148 | NPT_PSPSharedVariable::WaitUntilEquals
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149 +---------------------------------------------------------------------*/
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150 NPT_Result
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151 NPT_PSPSharedVariable::WaitUntilEquals(NPT_Integer value, NPT_Timeout timeout)
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152 {
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153 NPT_Timeout sleep = 0;
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154 do {
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155 m_Lock.Lock();
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156 if (m_Value == value) {
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157 break;
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158 }
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159 m_Lock.Unlock();
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160 NPT_System::GetSystem()->Sleep(50000);
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161 sleep += 50000;
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162 if (timeout != NPT_TIMEOUT_INFINITE && sleep > timeout) {
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163 return NPT_FAILURE;
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164 }
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165 } while (1);
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166
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167 m_Lock.Unlock();
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168
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169 return NPT_SUCCESS;
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170 }
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171
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172 /*----------------------------------------------------------------------
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173 | NPT_PSPSharedVariable::WaitWhileEquals
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174 +---------------------------------------------------------------------*/
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175 NPT_Result
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176 NPT_PSPSharedVariable::WaitWhileEquals(NPT_Integer value, NPT_Timeout timeout)
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177 {
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178 NPT_Timeout sleep = 0;
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179 do {
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180 m_Lock.Lock();
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181 if (m_Value != value) {
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182 break;
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183 }
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184 m_Lock.Unlock();
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185 NPT_System::GetSystem()->Sleep(50000);
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186 sleep += 50000;
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187 if (timeout != NPT_TIMEOUT_INFINITE && sleep > timeout) {
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188 return NPT_FAILURE;
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189 }
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190 } while (1);
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191
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192 m_Lock.Unlock();
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193
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194 return NPT_SUCCESS;
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195 }
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196
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197 /*----------------------------------------------------------------------
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198 | NPT_SharedVariable::NPT_SharedVariable
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199 +---------------------------------------------------------------------*/
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200 NPT_SharedVariable::NPT_SharedVariable(NPT_Integer value)
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201 {
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202 m_Delegate = new NPT_PSPSharedVariable(value);
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203 }
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204
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205 /*----------------------------------------------------------------------
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206 | NPT_PSPAtomicVariable
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207 +---------------------------------------------------------------------*/
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208 class NPT_PSPAtomicVariable : public NPT_AtomicVariableInterface
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209 {
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210 public:
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211 // methods
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212 NPT_PSPAtomicVariable(NPT_Integer value);
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213 ~NPT_PSPAtomicVariable();
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214 NPT_Integer Increment();
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215 NPT_Integer Decrement();
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216 NPT_Integer GetValue();
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217 void SetValue(NPT_Integer value);
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218
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219 private:
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220 // members
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221 volatile NPT_Integer m_Value;
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222 NPT_Mutex m_Mutex;
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223 };
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224
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225 /*----------------------------------------------------------------------
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226 | NPT_PSPAtomicVariable::NPT_PSPAtomicVariable
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227 +---------------------------------------------------------------------*/
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228 NPT_PSPAtomicVariable::NPT_PSPAtomicVariable(NPT_Integer value) :
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229 m_Value(value)
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230 {
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231 }
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232
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233 /*----------------------------------------------------------------------
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234 | NPT_PSPAtomicVariable::~NPT_PSPAtomicVariable
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235 +---------------------------------------------------------------------*/
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236 NPT_PSPAtomicVariable::~NPT_PSPAtomicVariable()
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237 {
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238 }
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239
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240 /*----------------------------------------------------------------------
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241 | NPT_PSPAtomicVariable::Increment
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242 +---------------------------------------------------------------------*/
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243 NPT_Integer
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244 NPT_PSPAtomicVariable::Increment()
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245 {
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246 NPT_Integer value;
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247
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248 m_Mutex.Lock();
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249 value = ++m_Value;
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250 m_Mutex.Unlock();
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251
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252 return value;
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253 }
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254
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255 /*----------------------------------------------------------------------
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256 | NPT_PSPAtomicVariable::Decrement
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257 +---------------------------------------------------------------------*/
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258 NPT_Integer
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259 NPT_PSPAtomicVariable::Decrement()
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260 {
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261 NPT_Integer value;
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262
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263 m_Mutex.Lock();
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264 value = --m_Value;
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265 m_Mutex.Unlock();
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266
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267 return value;
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268 }
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269
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270 /*----------------------------------------------------------------------
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271 | NPT_PSPAtomicVariable::GetValue
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272 +---------------------------------------------------------------------*/
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273 NPT_Integer
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274 NPT_PSPAtomicVariable::GetValue()
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275 {
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276 return m_Value;
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277 }
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278
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279 /*----------------------------------------------------------------------
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280 | NPT_PSPAtomicVariable::SetValue
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281 +---------------------------------------------------------------------*/
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282 void
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283 NPT_PSPAtomicVariable::SetValue(NPT_Integer value)
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284 {
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285 m_Mutex.Lock();
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286 m_Value = value;
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287 m_Mutex.Unlock();
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288 }
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289
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290 /*----------------------------------------------------------------------
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291 | NPT_AtomicVariable::NPT_AtomicVariable
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292 +---------------------------------------------------------------------*/
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293 NPT_AtomicVariable::NPT_AtomicVariable(NPT_Integer value)
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294 {
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295 m_Delegate = new NPT_PSPAtomicVariable(value);
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296 }
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297
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298 /*----------------------------------------------------------------------
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299 | NPT_PSPThread
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300 +---------------------------------------------------------------------*/
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301 class NPT_PSPThread : public NPT_ThreadInterface
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302 {
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303 public:
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304 // methods
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305 NPT_PSPThread(NPT_Thread* delegator,
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306 NPT_Runnable& target,
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307 bool detached);
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308 ~NPT_PSPThread();
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309 NPT_Result Start();
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310 NPT_Result Wait();
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311 NPT_Result Terminate();
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312
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313 private:
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314 // methods
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315 static int EntryPoint(SceSize argument_size, void* argument);
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316
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317 // NPT_Runnable methods
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318 void Run();
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319
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320 // members
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321 NPT_Thread* m_Delegator;
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322 NPT_Runnable& m_Target;
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323 bool m_Detached;
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324 SceUID m_ThreadId;
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325 };
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326
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327 /*----------------------------------------------------------------------
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328 | NPT_PSPThread::NPT_PSPThread
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329 +---------------------------------------------------------------------*/
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330 NPT_PSPThread::NPT_PSPThread(NPT_Thread* delegator,
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331 NPT_Runnable& target,
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332 bool detached) :
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333 m_Delegator(delegator),
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334 m_Target(target),
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335 m_Detached(detached),
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336 m_ThreadId(0)
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337 {
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338 }
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339
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340 /*----------------------------------------------------------------------
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341 | NPT_PSPThread::~NPT_PSPThread
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342 +---------------------------------------------------------------------*/
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343 NPT_PSPThread::~NPT_PSPThread()
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344 {
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345 if (!m_Detached) {
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346 // we're not detached, and not in the Run() method, so we need to
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347 // wait until the thread is done
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348 Wait();
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349 }
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350
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351 m_ThreadId = 0;
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352 }
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353
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354 /*----------------------------------------------------------------------
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355 | NPT_PSPThread::Terminate
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356 +---------------------------------------------------------------------*/
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357 NPT_Result
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358 NPT_PSPThread::Terminate()
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359 {
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360 // end the thread
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361 sceKernelExitDeleteThread(0);
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362
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363 // if we're detached, we need to delete ourselves
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364 if (m_Detached) {
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365 delete m_Delegator;
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366 }
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367
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368 return NPT_SUCCESS;
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fraserofthenight
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369 }
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370
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fraserofthenight
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371 /*----------------------------------------------------------------------
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372 | NPT_PSPThread::EntryPoint
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373 +---------------------------------------------------------------------*/
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374 int
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375 NPT_PSPThread::EntryPoint(SceSize /* argument_size */, void* argument)
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376 {
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377 NPT_PSPThread** pthread = (NPT_PSPThread**)argument;
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378 NPT_PSPThread* thread = *pthread;
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379
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380 //NPT_PSPThread* thread = reinterpret_cast<NPT_PSPThread*>(*argument);
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381
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382 NPT_Debug(NPT_LOG_LEVEL_1, ":: NPT_PSPThread::EntryPoint - in =======================\n");
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383
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fraserofthenight
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384 // run the thread
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385 thread->Run();
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386
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387 NPT_Debug(NPT_LOG_LEVEL_1, ":: NPT_PSPThread::EntryPoint - out ======================\n");
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388
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389 // we're done with the thread object
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390 thread->Terminate();
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fraserofthenight
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391
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392 // done
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393 return 0;
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394 }
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395
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fraserofthenight
parents:
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396 /*----------------------------------------------------------------------
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fraserofthenight
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397 | NPT_PSPThread::Start
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fraserofthenight
parents:
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398 +---------------------------------------------------------------------*/
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399 NPT_Result
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fraserofthenight
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400 NPT_PSPThread::Start()
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parents:
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401 {
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402 if (m_ThreadId > 0) {
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403 NPT_Debug(NPT_LOG_LEVEL_1, ":: NPT_PSPThread::Start already started !\n");
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404 return NPT_FAILURE;
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parents:
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405 }
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fraserofthenight
parents:
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406
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407 NPT_Debug(NPT_LOG_LEVEL_1, ":: NPT_PSPThread::Start - creating thread\n");
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408 char thread_name[32];
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409 sprintf(thread_name, "thread_%d", (int)NPT_System::GetSystem()->GetRandomInteger());
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fraserofthenight
parents:
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410
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fraserofthenight
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411 // create the native thread
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412 m_ThreadId = (SceUID)
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fraserofthenight
parents:
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413 sceKernelCreateThread(
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fraserofthenight
parents:
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414 thread_name,
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fraserofthenight
parents:
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415 EntryPoint,
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416 SCE_KERNEL_USER_LOWEST_PRIORITY,
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fraserofthenight
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417 1024 * 16,
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418 0,
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419 NULL);
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fraserofthenight
parents:
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420 if (m_ThreadId <= 0) {
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fraserofthenight
parents:
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421 // failed
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parents:
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422 return NPT_FAILURE;
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fraserofthenight
parents:
diff changeset
423 }
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
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424
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
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425 NPT_PSPThread* thread = this;
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fraserofthenight
parents:
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426 int ret = sceKernelStartThread(
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fraserofthenight
parents:
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427 m_ThreadId,
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fraserofthenight
parents:
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428 sizeof(thread),
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
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429 &thread);
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fraserofthenight
parents:
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430 if (ret != SCE_KERNEL_ERROR_OK) {
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fraserofthenight
parents:
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431 return NPT_FAILURE;
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fraserofthenight
parents:
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432 }
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fraserofthenight
parents:
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433
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fraserofthenight
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434 return NPT_SUCCESS;
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fraserofthenight
parents:
diff changeset
435 }
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
436
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
437 /*----------------------------------------------------------------------
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fraserofthenight
parents:
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438 | NPT_PSPThread::Run
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fraserofthenight
parents:
diff changeset
439 +---------------------------------------------------------------------*/
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fraserofthenight
parents:
diff changeset
440 void
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fraserofthenight
parents:
diff changeset
441 NPT_PSPThread::Run()
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fraserofthenight
parents:
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442 {
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443 m_Target.Run();
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fraserofthenight
parents:
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444 }
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fraserofthenight
parents:
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445
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
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446 /*----------------------------------------------------------------------
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fraserofthenight
parents:
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447 | NPT_PSPThread::Wait
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fraserofthenight
parents:
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448 +---------------------------------------------------------------------*/
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fraserofthenight
parents:
diff changeset
449 NPT_Result
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fraserofthenight
parents:
diff changeset
450 NPT_PSPThread::Wait()
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fraserofthenight
parents:
diff changeset
451 {
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fraserofthenight
parents:
diff changeset
452 // check that we're not detached
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fraserofthenight
parents:
diff changeset
453 if (m_ThreadId <= 0 || m_Detached) {
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fraserofthenight
parents:
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454 return NPT_FAILURE;
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
455 }
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
456
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fraserofthenight
parents:
diff changeset
457 // wait for the thread to finish
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parents:
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458 NPT_Debug(NPT_LOG_LEVEL_1, ":: NPT_PSPThread::Wait - joining thread id %d\n", m_ThreadId);
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
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459 int result = sceKernelWaitThreadEnd(m_ThreadId, NULL);
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
460 if (result < 0) {
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
461 return NPT_FAILURE;
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
462 } else {
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
463 return NPT_SUCCESS;
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
464 }
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
465 }
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
466
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
467 /*----------------------------------------------------------------------
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fraserofthenight
parents:
diff changeset
468 | NPT_Thread::NPT_Thread
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fraserofthenight
parents:
diff changeset
469 +---------------------------------------------------------------------*/
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fraserofthenight
parents:
diff changeset
470 NPT_Thread::NPT_Thread(bool detached)
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fraserofthenight
parents:
diff changeset
471 {
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
472 m_Delegate = new NPT_PSPThread(this, *this, detached);
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
473 }
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
474
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
475 /*----------------------------------------------------------------------
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
476 | NPT_Thread::NPT_Thread
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
477 +---------------------------------------------------------------------*/
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fraserofthenight
parents:
diff changeset
478 NPT_Thread::NPT_Thread(NPT_Runnable& target, bool detached)
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
479 {
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
480 m_Delegate = new NPT_PSPThread(this, target, detached);
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
481 }
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
482
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
483
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
484
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
485
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
486
3425707ddbf6 Initial import (hopefully this mercurial stuff works...)
fraserofthenight
parents:
diff changeset
487