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132
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1 // D import file generated from 'core/Thread.d'
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2 module tango.core.Thread;
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3 version = StackGrowsDown;
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4 public
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5 {
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6 }
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7 private
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8 {
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9 import tango.core.Exception;
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10 extern (C)
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11 {
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12 void* rt_stackBottom();
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13 }
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14 extern (C)
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15 {
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16 void* rt_stackTop();
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17 }
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18 void* getStackBottom()
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19 {
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20 return rt_stackBottom();
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21 }
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22 void* getStackTop();
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23 }
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24 version (Win32)
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25 {
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26 private
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27 {
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28 import tango.stdc.stdint;
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29 import tango.sys.win32.UserGdi;
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30 const
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31 {
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32 DWORD TLS_OUT_OF_INDEXES = -1u;
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33 }
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34 extern (Windows)
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35 {
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36 alias uint(* btex_fptr)(void*);
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37 }
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38 extern (C)
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39 {
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40 uintptr_t _beginthreadex(void*, uint, btex_fptr, void*, uint, uint*);
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41 }
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42 extern (Windows)
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43 {
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44 uint thread_entryPoint(void* arg);
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45 }
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46 HANDLE GetCurrentThreadHandle()
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47 {
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48 const uint DUPLICATE_SAME_ACCESS = 2;
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49 HANDLE curr = GetCurrentThread();
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50 HANDLE proc = GetCurrentProcess();
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51 HANDLE hndl;
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52 DuplicateHandle(proc,curr,proc,&hndl,0,TRUE,DUPLICATE_SAME_ACCESS);
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53 return hndl;
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54 }
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55 }
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56 }
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57 else
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58 {
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59 version (Posix)
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60 {
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61 private
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62 {
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63 import tango.stdc.posix.semaphore;
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64 import tango.stdc.posix.pthread;
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65 import tango.stdc.posix.signal;
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66 import tango.stdc.posix.time;
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67 import tango.stdc.errno;
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68 extern (C)
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69 {
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70 int getErrno();
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71 }
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72 version (GNU)
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73 {
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74 import gcc.builtins;
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75 }
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76 extern (C)
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77 {
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78 void* thread_entryPoint(void* arg);
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79 }
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80 sem_t suspendCount;
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81 extern (C)
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82 {
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83 void thread_suspendHandler(int sig);
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84 }
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85 extern (C)
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86 {
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87 void thread_resumeHandler(int sig)
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88 in
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89 {
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90 assert(sig == SIGUSR2);
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91 }
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92 body
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93 {
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94 }
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95 }
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96 }
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97 }
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98 else
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99 {
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100 static assert(false,"Unknown threading implementation.");
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101 }
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102 }
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103 class Thread
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104 {
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105 this(void(* fn)(), size_t sz = 0)
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106 in
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107 {
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108 assert(fn);
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109 }
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110 body
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111 {
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112 m_fn = fn;
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113 m_sz = sz;
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114 m_call = Call.FN;
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115 m_curr = &m_main;
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116 }
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117 this(void delegate() dg, size_t sz = 0)
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118 in
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119 {
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120 assert(dg);
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121 }
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122 body
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123 {
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124 m_dg = dg;
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125 m_sz = sz;
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126 m_call = Call.DG;
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127 m_curr = &m_main;
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128 }
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129 final
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130 {
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131 void start();
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132 }
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133 final
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134 {
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135 void join(bool rethrow = true);
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136 }
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137 final
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138 {
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139 char[] name();
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140 }
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141 final
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142 {
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143 void name(char[] val);
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144 }
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145 final
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146 {
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147 bool isDaemon();
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148 }
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149 final
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150 {
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151 void isDaemon(bool val);
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152 }
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153 final
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154 {
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155 bool isRunning();
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156 }
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157 static const
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158 {
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159 int PRIORITY_MIN;
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160 }
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161 static const
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162 {
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163 int PRIORITY_MAX;
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164 }
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165 final
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166 {
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167 int priority();
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168 }
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169 final
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170 {
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171 void priority(int val);
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172 }
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173 static
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174 {
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175 void sleep(double period);
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176 }
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177 static
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178 {
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179 void yield();
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180 }
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181 static
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182 {
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183 Thread getThis();
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184 }
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185 static
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186 {
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187 Thread[] getAll();
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188 }
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189 static
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190 {
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191 int opApply(int delegate(ref Thread) dg);
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192 }
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193 static const
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194 {
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195 uint LOCAL_MAX = 64;
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196 }
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197 static
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198 {
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199 uint createLocal();
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200 }
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201 static
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202 {
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203 void deleteLocal(uint key);
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204 }
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205 static
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206 {
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207 void* getLocal(uint key)
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208 {
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209 return getThis().m_local[key];
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210 }
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211 }
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212 static
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213 {
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214 void* setLocal(uint key, void* val)
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215 {
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216 return getThis().m_local[key] = val;
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217 }
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218 }
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219 static this();
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220 private
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221 {
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222 this()
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223 {
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224 m_call = Call.NO;
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225 m_curr = &m_main;
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226 }
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227 final
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228 {
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229 void run();
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230 }
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231 private
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232 {
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233 enum Call
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234 {
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235 NO,
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236 FN,
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237 DG,
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238 }
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239 version (Win32)
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240 {
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241 alias uint TLSKey;
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242 alias uint ThreadAddr;
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243 }
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244 else
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245 {
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246 version (Posix)
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247 {
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248 alias pthread_key_t TLSKey;
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249 alias pthread_t ThreadAddr;
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250 }
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251 }
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252 static
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253 {
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254 bool[LOCAL_MAX] sm_local;
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255 }
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256 static
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257 {
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258 TLSKey sm_this;
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259 }
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260 void*[LOCAL_MAX] m_local;
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261 version (Win32)
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262 {
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263 HANDLE m_hndl;
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264 }
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265 ThreadAddr m_addr;
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266 Call m_call;
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267 char[] m_name;
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268 union
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269 {
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270 void(* m_fn)();
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271 void delegate() m_dg;
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272 }
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273 size_t m_sz;
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274 version (Posix)
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275 {
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276 bool m_isRunning;
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277 }
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278 bool m_isDaemon;
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279 Object m_unhandled;
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280 private
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281 {
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282 static
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283 {
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284 void setThis(Thread t);
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285 }
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286 private
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287 {
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288 final
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289 {
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290 void pushContext(Context* c)
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291 in
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292 {
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293 assert(!c.within);
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294 }
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295 body
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296 {
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297 c.within = m_curr;
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298 m_curr = c;
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299 }
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300 }
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301 final
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302 {
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303 void popContext()
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304 in
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305 {
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306 assert(m_curr && m_curr.within);
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307 }
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308 body
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309 {
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310 Context* c = m_curr;
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311 m_curr = c.within;
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312 c.within = null;
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313 }
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314 }
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315 final
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316 {
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317 Context* topContext()
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318 in
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319 {
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320 assert(m_curr);
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321 }
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322 body
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323 {
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324 return m_curr;
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325 }
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326 }
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327 static
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328 {
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329 struct Context
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330 {
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331 void* bstack;
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332 void* tstack;
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333 Context* within;
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334 Context* next;
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335 Context* prev;
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336 }
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337 }
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338 Context m_main;
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339 Context* m_curr;
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340 bool m_lock;
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341 version (Win32)
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342 {
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343 uint[8] m_reg;
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344 }
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345 private
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346 {
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347 static
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348 {
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349 Object slock()
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350 {
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351 return Thread.classinfo;
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352 }
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353 }
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354 static
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355 {
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356 Context* sm_cbeg;
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357 }
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358 static
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359 {
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360 size_t sm_clen;
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361 }
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362 static
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363 {
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364 Thread sm_tbeg;
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365 }
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366 static
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367 {
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368 size_t sm_tlen;
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369 }
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370 Thread prev;
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371 Thread next;
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372 static
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373 {
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374 void add(Context* c);
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375 }
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376 static
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377 {
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378 void remove(Context* c);
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379 }
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380 static
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381 {
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382 void add(Thread t);
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383 }
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384 static
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385 {
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386 void remove(Thread t);
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387 }
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388 }
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389 }
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390 }
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391 }
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392 }
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393 }
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394 extern (C)
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395 {
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396 void thread_init();
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397 }
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398 extern (C)
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399 {
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400 void thread_attachThis();
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401 }
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402 extern (C)
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403 {
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404 void thread_detachThis()
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405 {
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406 Thread.remove(Thread.getThis());
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407 }
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408 }
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409 extern (C)
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410 {
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411 void thread_joinAll();
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412 }
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413 private
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414 {
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415 bool multiThreadedFlag = false;
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416 }
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417 extern (C)
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418 {
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419 bool thread_needLock()
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420 {
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421 return multiThreadedFlag;
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422 }
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423 }
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424 private
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425 {
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426 uint suspendDepth = 0;
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427 }
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428 extern (C)
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429 {
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430 void thread_suspendAll();
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431 }
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432 extern (C)
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433 {
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434 void thread_resumeAll();
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435 }
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436 private
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437 {
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438 alias void delegate(void*, void*) scanAllThreadsFn;
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439 }
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440 extern (C)
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441 {
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442 void thread_scanAll(scanAllThreadsFn scan, void* curStackTop = null);
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443 }
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444 template ThreadLocal(T)
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445 {
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446 class ThreadLocal
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447 {
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448 this(T def = T.init)
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449 {
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450 m_def = def;
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451 m_key = Thread.createLocal();
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452 }
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453 T val()
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454 {
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455 Wrap* wrap = cast(Wrap*)Thread.getLocal(m_key);
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456 return wrap ? wrap.val : m_def;
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457 }
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458 T val(T newval)
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459 {
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460 Wrap* wrap = cast(Wrap*)Thread.getLocal(m_key);
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461 if (wrap is null)
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462 {
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463 wrap = new Wrap;
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464 Thread.setLocal(m_key,wrap);
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465 }
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466 wrap.val = newval;
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467 return newval;
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468 }
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469 private
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470 {
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471 struct Wrap
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472 {
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473 T val;
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474 }
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475 T m_def;
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476 uint m_key;
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477 }
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478 }
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479 }
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480 class ThreadGroup
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481 {
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482 final
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483 {
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484 Thread create(void(* fn)());
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485 }
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486 final
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487 {
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488 Thread create(void delegate() dg);
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489 }
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490 final
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491 {
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492 void add(Thread t);
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493 }
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494 final
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495 {
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496 void remove(Thread t);
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497 }
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498 final
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499 {
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500 int opApply(int delegate(ref Thread) dg);
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501 }
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502 final
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503 {
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504 void joinAll(bool rethrow = true);
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505 }
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506 private
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507 {
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508 Thread[Thread] m_all;
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509 }
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510 }
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511 private
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512 {
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513 version (D_InlineAsm_X86)
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514 {
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515 version (X86_64)
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516 {
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517 }
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518 else
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519 {
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520 version (Win32)
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521 {
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522 version = AsmX86_Win32;
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523 }
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524 else
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525 {
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526 version (Posix)
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527 {
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528 version = AsmX86_Posix;
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529 }
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530 }
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531 }
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532 }
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533 else
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534 {
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535 version (PPC)
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536 {
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537 version (Posix)
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538 {
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539 version = AsmPPC_Posix;
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540 }
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541 }
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542 }
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543 version (Posix)
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544 {
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545 import tango.stdc.posix.unistd;
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546 import tango.stdc.posix.sys.mman;
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547 import tango.stdc.posix.stdlib;
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548 version (AsmX86_Win32)
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549 {
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550 }
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551 else
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552 {
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553 version (AsmX86_Posix)
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554 {
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555 }
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556 else
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557 {
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558 version (AsmPPC_Posix)
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559 {
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560 }
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561 else
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562 {
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563 import tango.stdc.posix.ucontext;
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564 }
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565 }
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566 }
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567 }
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568 const
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569 {
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570 size_t PAGESIZE;
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571 }
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572 }
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573 static this();
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574 private
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575 {
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576 extern (C)
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577 {
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578 void fiber_entryPoint();
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579 }
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580 version (AsmPPC_Posix)
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581 {
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582 extern (C)
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583 {
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584 void fiber_switchContext(void** oldp, void* newp);
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585 }
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586 }
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587 else
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588 {
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589 extern (C)
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590 {
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591 void fiber_switchContext(void** oldp, void* newp);
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592 }
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593 }
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594 }
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595 class Fiber
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596 {
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597 this(void(* fn)(), size_t sz = PAGESIZE)
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598 in
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599 {
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600 assert(fn);
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601 }
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602 body
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603 {
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604 m_fn = fn;
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605 m_call = Call.FN;
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606 m_state = State.HOLD;
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607 allocStack(sz);
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608 initStack();
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609 }
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610 this(void delegate() dg, size_t sz = PAGESIZE)
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611 in
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612 {
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613 assert(dg);
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614 }
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615 body
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616 {
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617 m_dg = dg;
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618 m_call = Call.DG;
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619 m_state = State.HOLD;
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620 allocStack(sz);
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621 initStack();
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622 }
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623 final
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624 {
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625 void call(bool rethrow = true);
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626 }
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627 final
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628 {
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629 void reset()
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630 in
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631 {
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632 assert(m_state == State.TERM);
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633 assert(m_ctxt.tstack == m_ctxt.bstack);
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634 }
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635 body
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636 {
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637 m_state = State.HOLD;
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638 initStack();
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639 m_unhandled = null;
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640 }
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641 }
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642 enum State
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643 {
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644 HOLD,
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645 EXEC,
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646 TERM,
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647 }
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648 final
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649 {
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650 State state()
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651 {
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652 return m_state;
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653 }
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654 }
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655 static
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656 {
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657 void yield();
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658 }
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659 static
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660 {
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661 void yieldAndThrow(Object obj);
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662 }
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663 static
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664 {
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665 Fiber getThis();
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666 }
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667 static this();
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668 private
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669 {
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670 this()
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671 {
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672 m_call = Call.NO;
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673 }
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674 final
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675 {
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676 void run();
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677 }
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678 private
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679 {
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680 enum Call
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681 {
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682 NO,
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683 FN,
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684 DG,
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685 }
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686 Call m_call;
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687 union
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688 {
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689 void(* m_fn)();
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690 void delegate() m_dg;
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691 }
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692 bool m_isRunning;
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693 Object m_unhandled;
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694 State m_state;
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695 private
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696 {
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697 final
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698 {
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699 void allocStack(size_t sz);
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700 }
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701 final
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702 {
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703 void freeStack();
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704 }
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705 final
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706 {
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707 void initStack();
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708 }
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709 Thread.Context* m_ctxt;
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710 size_t m_size;
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711 void* m_pmem;
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712 static if(is(typeof(ucontext_t)))
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713 {
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714 static
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715 {
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716 ucontext_t sm_utxt = void;
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717 }
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718 ucontext_t m_utxt = void;
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719 ucontext_t* m_ucur = null;
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720 }
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721 private
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722 {
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723 static
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724 {
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725 void setThis(Fiber f);
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726 }
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727 static
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728 {
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729 Thread.TLSKey sm_this;
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730 }
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731 private
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732 {
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733 final
|
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734 {
|
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735 void switchIn();
|
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736 }
|
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737 final
|
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738 {
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739 void switchOut();
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740 }
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741 }
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742 }
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743 }
|
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744 }
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745 }
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746 }
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