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1 /*
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2 * Copyright 2010 OpenSourceCodeStewardshipFoundation
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3 *
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4 * Licensed under BSD
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5 */
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6
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <malloc.h>
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10
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11 #include "VMS.h"
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12 #include "Queue_impl/BlockingQueue.h"
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13
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14
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15 //===========================================================================
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16 void
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17 shutdownFn( void *dummy, VirtProcr *dummy2 );
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18
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19 void
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20 create_sched_slots( MasterEnv *masterEnv );
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21
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22 //===========================================================================
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23
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24 /*Setup has two phases:
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25 * 1) Semantic layer first calls init_VMS, which creates masterEnv, and puts
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26 * the master virt procr into the work-queue, ready for first "call"
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27 * 2) Semantic layer then does its own init, which creates the seed virt
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28 * procr inside the semantic layer, ready to schedule it when
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29 * asked by the first run of the masterLoop.
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30 *
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31 *This part is bit weird because VMS really wants to be "always there", and
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32 * have applications attach and detach.. for now, this VMS is part of
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33 * the app, so the VMS system starts up as part of running the app.
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34 *
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35 *The semantic layer is isolated from the VMS internals by making the
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36 * semantic layer do setup to a state that it's ready with its
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37 * initial virt procrs, ready to schedule them to slots when the masterLoop
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38 * asks. Without this pattern, the semantic layer's setup would
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39 * have to modify slots directly to assign the initial virt-procrs, and put
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40 * them into the workQ itself, breaking the isolation completely.
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41 *
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42 *
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43 *The semantic layer creates the initial virt procr(s), and adds its
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44 * own environment to masterEnv, and fills in the pointers to
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45 * the requestHandler and slaveScheduler plug-in functions
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46 */
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47
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48 /*This allocates VMS data structures, populates the master VMSProc,
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49 * and master environment, and returns the master environment to the semantic
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50 * layer.
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51 */
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52 void
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53 VMS__init()
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54 { MasterEnv *masterEnv;
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55 CASQueueStruc *workQ;
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56
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57 //Make the central work-queue
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58 _VMSWorkQ = makeCASQ();
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59 workQ = _VMSWorkQ;
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60
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61 _VMSMasterEnv = malloc( sizeof(MasterEnv) );
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62 masterEnv = _VMSMasterEnv;
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63
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64 //create the master virtual processor
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65 masterEnv->masterVirtPr = VMS__create_procr( &masterLoop, masterEnv );
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66
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67 create_sched_slots( masterEnv );
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68
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69 //Set slot 0 to be the master virt procr & set flags just in case
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70 masterEnv->schedSlots[0]->needsProcrAssigned = FALSE; //says don't touch
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71 masterEnv->schedSlots[0]->workIsDone = FALSE; //says don't touch
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72 masterEnv->schedSlots[0]->procrAssignedToSlot = masterEnv->masterVirtPr;
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73 masterEnv->masterVirtPr->schedSlot = masterEnv->schedSlots[0];
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74 masterEnv->stillRunning = FALSE;
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75
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76 //First core loop to start up gets this, which will schedule seed Pr
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77 //TODO: debug: check address of masterVirtPr
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78 writeCASQ( masterEnv->masterVirtPr, workQ );
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79
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80 numProcrsCreated = 1;
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81
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82 //========================================================================
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83 // Create the Threads
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84 int coreIdx, retCode;
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85 #define thdAttrs NULL
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86
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87 _VMSMasterEnv->setupComplete = 0;
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88 _VMSMasterEnv->suspend_mutex = PTHREAD_MUTEX_INITIALIZER;
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89 _VMSMasterEnv->suspend_cond = PTHREAD_COND_INITIALIZER;
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90
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91 //Need the threads to be created suspended, and wait for a signal
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92 // before proceeding -- gives time after creating to initialize other
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93 // stuff before the coreLoops set off.
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94
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95 //Make params given to the win threads that animate the core loops
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96 for( coreIdx=0; coreIdx < NUM_CORES; coreIdx++ )
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97 { coreLoopThdParams[coreIdx] = malloc( sizeof(ThdParams) );
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98 coreLoopThdParams[coreIdx]->coreNum = coreIdx;
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99
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100 retCode =
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101 pthread_create( &(coreLoopThdHandles[coreIdx]),
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102 thdAttrs,
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103 &coreLoop,
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104 (void *)(coreLoopThdParams[coreIdx]) );
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105 if(!retCode){printf("ERROR creating thread: %d\n", retCode); exit();}
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106 }
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107
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108
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109 }
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110
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111 void
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112 create_sched_slots( MasterEnv *masterEnv )
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113 { SchedSlot **schedSlots, **filledSlots;
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114 int i;
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115
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116 schedSlots = malloc( NUM_SCHED_SLOTS * sizeof(SchedSlot *) );
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117 filledSlots = malloc( NUM_SCHED_SLOTS * sizeof(SchedSlot *) );
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118 masterEnv->schedSlots = schedSlots;
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119 masterEnv->filledSlots = filledSlots;
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120
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121 for( i = 0; i < NUM_SCHED_SLOTS; i++ )
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122 {
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123 schedSlots[i] = malloc( sizeof(SchedSlot) );
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124
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125 //Set state to mean "handling requests done, slot needs filling"
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126 schedSlots[i]->workIsDone = FALSE;
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127 schedSlots[i]->needsProcrAssigned = TRUE;
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128 }
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129 }
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130
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131
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132 /*Semantic layer calls this when it want the system to start running..
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133 *
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134 *This starts the core loops running then waits for them to exit.
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135 */
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136 void
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137 VMS__start_the_work_then_wait_until_done()
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138 { int coreIdx;
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139 //Start the core loops running
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140 //===========================================================================
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141 TSCount startCount, endCount;
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142 unsigned long long count = 0, freq = 0;
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143 double runTime;
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144
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145 startCount = getTSCount();
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146
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147 //tell the core loop threads that setup is complete
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148 //get lock, to lock out any threads still starting up -- they'll see
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149 // that setupComplete is true before entering while loop, and so never
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150 // wait on the condition
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151 pthread_mutex_lock( _VMSMasterEnv->suspend_mutex );
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152 _VMSMasterEnv->setupComplete = 1;
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153 pthread_mutex_unlock( _VMSMasterEnv->suspend_mutex );
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154 pthread_cond_broadcast( _VMSMasterEnv->suspend_cond );
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155
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156
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157 //wait for all to complete
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158 for( coreIdx=0; coreIdx < NUM_CORES; coreIdx++ )
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159 {
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160 pthread_join( coreLoopThdHandles[coreIdx], NULL );
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161 }
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162
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163 //NOTE: do not clean up VMS env here -- semantic layer has to have
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164 // a chance to clean up its environment first, then do a call to free
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165 // the Master env and rest of VMS locations
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166
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167
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168 endCount = getTSCount();
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169 count = endCount - startCount;
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170
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171 runTime = (double)count / (double)TSCOUNT_FREQ;
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172
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173 printf("\n Time startup to shutdown: %f\n", runTime); fflush( stdin );
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174 }
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175
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176
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177
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178 /*Create stack, then create __cdecl structure on it and put initialData and
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179 * pointer to the new structure instance into the parameter positions on
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180 * the stack
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181 *Then put function pointer into nextInstrPt -- the stack is setup in std
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182 * call structure, so jumping to function ptr is same as a GCC generated
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183 * function call
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184 *No need to save registers on old stack frame, because there's no old
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185 * animator state to return to --
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186 *
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187 */
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188 VirtProcr *
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189 VMS__create_procr( VirtProcrFnPtr fnPtr, void *initialData )
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190 { VirtProcr *newPr;
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191 char *stackLocs, *stackPtr;
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192
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193 newPr = malloc( sizeof(VirtProcr) );
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194 newPr->procrID = numProcrsCreated++;
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195 newPr->nextInstrPt = fnPtr;
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196 newPr->initialData = initialData;
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197
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198 //fnPtr takes two params -- void *initData & void *animProcr
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199 //alloc stack locations, make stackPtr be the highest addr minus room
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200 // for 2 params + return addr. Return addr (NULL) is in loc pointed to
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201 // by stackPtr, initData at stackPtr + 4 bytes, animatingPr just above
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202 stackLocs = malloc( VIRT_PROCR_STACK_SIZE );
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203 newPr->startOfStack = stackLocs;
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204 stackPtr = ( (char *)stackLocs + VIRT_PROCR_STACK_SIZE - 0x10 );
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205 //setup __cdecl on stack -- coreloop will switch to stackPtr before jmp
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206 *( (int *)stackPtr + 2 ) = (int) newPr; //rightmost param -- 32bit pointer
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207 *( (int *)stackPtr + 1 ) = (int) initialData; //next param to left
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208 newPr->stackPtr = stackPtr; //core loop will switch to this, then
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209 newPr->framePtr = stackPtr; //suspend loop will save new stack & frame ptr
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210
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211 return newPr;
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212 }
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213
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214
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215 /*there is a label inside this function -- save the addr of this label in
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216 * the callingPr struc, as the pick-up point from which to start the next
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217 * work-unit for that procr. If turns out have to save registers, then
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218 * save them in the procr struc too. Then do assembly jump to the CoreLoop's
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219 * "done with work-unit" label. The procr struc is in the request in the
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220 * slave that animated the just-ended work-unit, so all the state is saved
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221 * there, and will get passed along, inside the request handler, to the
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222 * next work-unit for that procr.
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223 */
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224 void
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225 VMS__suspend_procr( VirtProcr *callingPr )
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226 { void *jmpPt, *stackPtrAddr, *framePtrAddr, *coreLoopStackPtr;
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227 void *coreLoopFramePtr;
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228
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229 //The request to master will cause this suspended virt procr to get
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230 // scheduled again at some future point -- to resume, core loop jumps
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231 // to the resume point (below), which causes restore of saved regs and
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232 // "return" from this call.
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233 callingPr->nextInstrPt = &&ResumePt;
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234
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235 //return ownership of the virt procr and sched slot to Master virt pr
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236 callingPr->schedSlot->workIsDone = TRUE;
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237 // coreIdx = callingPr->coreAnimatedBy;
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238
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239 stackPtrAddr = &(callingPr->stackPtr);
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240 framePtrAddr = &(callingPr->framePtr);
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241
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242 jmpPt = callingPr->coreLoopStartPt;
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243 coreLoopFramePtr = callingPr->coreLoopFramePtr;//need this only
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244 coreLoopStackPtr = callingPr->coreLoopStackPtr;//shouldn't need -- safety
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245
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246 //Save the virt procr's stack and frame ptrs, restore coreloop's frame
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247 // ptr, then jump back to "start" of core loop
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248 //Note, GCC compiles to assembly that saves esp and ebp in the stack
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249 // frame -- so have to explicitly do assembly that saves to memory
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250 asm volatile("movl %0, %%eax; \
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251 movl %%esp, (%%eax); \
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252 movl %1, %%eax; \
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253 movl %%ebp, (%%eax); \
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254 movl %2, %%eax; \
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255 movl %3, %%esp; \
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256 movl %4, %%ebp; \
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257 jmp %%eax " \
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258 /* outputs */ : "=g" (stackPtrAddr), "=g" (framePtrAddr) \
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259 /* inputs */ : "g" (jmpPt), "g"(coreLoopStackPtr), "g"(coreLoopFramePtr)\
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260 /* clobber */ : "memory", "%eax", "%ebx", "%ecx", "%edx", "%edi","%esi" \
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261 ); //list everything as clobbered to force GCC to save all
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262 // live vars that are in regs on stack before this
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263 // assembly, so that stack pointer is correct, before jmp
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264
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265 ResumePt:
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266 return;
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267 }
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268
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269
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270
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271 /*This is equivalent to "jump back to core loop" -- it's mainly only used
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272 * just after adding dissipate request to a processor -- so the semantic
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273 * layer is the only place it will be seen and/or used.
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274 *
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275 *It does almost the same thing as suspend, except don't need to save the
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276 * stack nor set the nextInstrPt
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277 *
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278 *As of June 30, 2010 just implementing as a call to suspend -- just sugar
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279 */
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280 void
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281 VMS__return_from_fn( VirtProcr *animatingPr )
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282 {
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283 VMS__suspend_procr( animatingPr );
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284 }
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285
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286
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287 /*Not sure yet the form going to put "dissipate" in, so this is the third
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288 * possibility -- the semantic layer can just make a macro that looks like
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289 * a call to its name, then expands to a call to this.
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290 *
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291 *As of June 30, 2010 this looks like the top choice..
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292 *
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293 *This adds a request to dissipate, then suspends the processor so that the
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294 * request handler will receive the request. The request handler is what
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295 * does the work of freeing memory and removing the processor from the
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296 * semantic environment's data structures.
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297 *The request handler also is what figures out when to shutdown the VMS
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298 * system -- which causes all the core loop threads to die, and returns from
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299 * the call that started up VMS to perform the work.
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300 *
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301 *This form is a bit misleading to understand if one is trying to figure out
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302 * how VMS works -- it looks like a normal function call, but inside it
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303 * sends a request to the request handler and suspends the processor, which
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304 * jumps out of the VMS__dissipate_procr function, and out of all nestings
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305 * above it, transferring the work of dissipating to the request handler,
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306 * which then does the actual work -- causing the processor that animated
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307 * the call of this function to disappear and the "hanging" state of this
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308 * function to just poof into thin air -- the virtual processor's trace
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309 * never returns from this call, but instead the virtual processor's trace
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310 * gets suspended in this call and all the virt processor's state disap-
|
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Me@22
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311 * pears -- making that suspend the last thing in the virt procr's trace.
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Me@8
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312 */
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Me@8
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313 void
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Me@22
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314 VMS__dissipate_procr( VirtProcr *procrToDissipate )
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Me@22
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315 { VMSReqst *req;
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Me@22
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316
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Me@22
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317 req = malloc( sizeof(VMSReqst) );
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Me@22
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318 // req->virtProcrFrom = callingPr;
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Me@22
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319 req->reqType = dissipate;
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Me@22
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320 req->nextReqst = procrToDissipate->requests;
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Me@22
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321 procrToDissipate->requests = req;
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Me@22
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322
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Me@22
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323 VMS__suspend_procr( procrToDissipate );
|
|
Me@22
|
324 }
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Me@22
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325
|
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Me@22
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326
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Me@22
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327 /*This inserts the semantic-layer's request data into standard VMS carrier
|
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Me@22
|
328 */
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Me@22
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329 inline void
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Me@24
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330 VMS__add_sem_request( void *semReqData, VirtProcr *callingPr )
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|
Me@22
|
331 { VMSReqst *req;
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|
Me@22
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332
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Me@22
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333 req = malloc( sizeof(VMSReqst) );
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Me@22
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334 // req->virtProcrFrom = callingPr;
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Me@22
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335 req->reqType = semantic;
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|
Me@22
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336 req->semReqData = semReqData;
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Me@22
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337 req->nextReqst = callingPr->requests;
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Me@22
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338 callingPr->requests = req;
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|
Me@22
|
339 }
|
|
Me@22
|
340
|
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Me@22
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341
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Me@22
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342
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Me@22
|
343 //TODO: add a semantic-layer supplied "freer" for the semantic-data portion
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Me@22
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344 // of a request -- IE call with both a virt procr and a fn-ptr to request
|
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Me@22
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345 // freer (or maybe put request freer as a field in virt procr?)
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Me@22
|
346 void
|
|
Me@22
|
347 VMS__remove_and_free_top_request( VirtProcr *procrWithReq )
|
|
Me@22
|
348 { VMSReqst *req;
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|
Me@22
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349
|
|
Me@22
|
350 req = procrWithReq->requests;
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|
Me@22
|
351 procrWithReq->requests = procrWithReq->requests->nextReqst;
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|
Me@22
|
352 free( req );
|
|
Me@22
|
353 }
|
|
Me@22
|
354
|
|
Me@24
|
355
|
|
Me@24
|
356 //TODO: add a semantic-layer supplied "freer" for the semantic-data portion
|
|
Me@24
|
357 // of a request -- IE call with both a virt procr and a fn-ptr to request
|
|
Me@24
|
358 // freer (also maybe put sem request freer as a field in virt procr?)
|
|
Me@22
|
359 void
|
|
Me@24
|
360 VMS__free_request( VMSReqst *req )
|
|
Me@24
|
361 {
|
|
Me@24
|
362 free( req );
|
|
Me@24
|
363 }
|
|
Me@24
|
364
|
|
Me@24
|
365 VMSReqst *
|
|
Me@24
|
366 VMS__take_top_request_from( VirtProcr *procrWithReq )
|
|
Me@24
|
367 { VMSReqst *req;
|
|
Me@24
|
368
|
|
Me@24
|
369 req = procrWithReq->requests;
|
|
Me@24
|
370 if( req == NULL ) return req;
|
|
Me@24
|
371
|
|
Me@24
|
372 procrWithReq->requests = procrWithReq->requests->nextReqst;
|
|
Me@24
|
373 return req;
|
|
Me@24
|
374 }
|
|
Me@24
|
375
|
|
Me@24
|
376 inline int
|
|
Me@24
|
377 VMS__isSemanticReqst( VMSReqst *req )
|
|
Me@22
|
378 {
|
|
Me@24
|
379 return ( req->reqType == semantic );
|
|
Me@24
|
380 }
|
|
Me@22
|
381
|
|
Me@24
|
382
|
|
Me@24
|
383 inline void *
|
|
Me@24
|
384 VMS__take_sem_reqst_from( VMSReqst *req )
|
|
Me@24
|
385 {
|
|
Me@24
|
386 return req->semReqData;
|
|
Me@24
|
387 }
|
|
Me@24
|
388
|
|
Me@24
|
389 inline int
|
|
Me@24
|
390 VMS__isDissipateReqst( VMSReqst *req )
|
|
Me@24
|
391 {
|
|
Me@24
|
392 return ( req->reqType == dissipate );
|
|
Me@24
|
393 }
|
|
Me@24
|
394
|
|
Me@24
|
395 inline int
|
|
Me@24
|
396 VMS__isCreateReqst( VMSReqst *req )
|
|
Me@24
|
397 {
|
|
Me@24
|
398 return ( req->reqType == regCreated );
|
|
Me@24
|
399 }
|
|
Me@24
|
400
|
|
Me@24
|
401 void
|
|
Me@24
|
402 VMS__send_register_new_procr_request(VirtProcr *newPr, VirtProcr *reqstingPr)
|
|
Me@24
|
403 { VMSReqst *req;
|
|
Me@24
|
404
|
|
Me@24
|
405 req = malloc( sizeof(VMSReqst) );
|
|
Me@24
|
406 req->reqType = regCreated;
|
|
Me@24
|
407 req->semReqData = newPr;
|
|
Me@24
|
408 req->nextReqst = reqstingPr->requests;
|
|
Me@24
|
409 reqstingPr->requests = req;
|
|
Me@24
|
410
|
|
Me@24
|
411 VMS__suspend_procr( reqstingPr );
|
|
Me@22
|
412 }
|
|
Me@22
|
413
|
|
Me@22
|
414
|
|
Me@22
|
415 /*The semantic layer figures out when the work is done ( perhaps by a call
|
|
Me@22
|
416 * in the application to "work all done", or perhaps all the virtual
|
|
Me@22
|
417 * processors have dissipated.. a.s.o. )
|
|
Me@22
|
418 *
|
|
Me@22
|
419 *The semantic layer is responsible for making sure all work has fully
|
|
Me@22
|
420 * completed before using this to shutdown the VMS system.
|
|
Me@22
|
421 *
|
|
Me@22
|
422 *After the semantic layer has determined it wants to shut down, the
|
|
Me@22
|
423 * next time the Master Loop calls the scheduler plug-in, the scheduler
|
|
Me@22
|
424 * then calls this function and returns the virtual processor it gets back.
|
|
Me@22
|
425 *
|
|
Me@22
|
426 *When the shut-down processor runs, it first frees all locations malloc'd to
|
|
Me@22
|
427 * the VMS system (that wasn't
|
|
Me@22
|
428 * specified as return-locations). Then it creates one core-loop shut-down
|
|
Me@22
|
429 * processor for each core loop and puts them all into the workQ. When a
|
|
Me@22
|
430 * core loop animates a core loop shut-down processor, it causes exit-thread
|
|
Me@22
|
431 * to run, and when all core loop threads have exited, then the "wait for
|
|
Me@22
|
432 * work to finish" in the main thread is woken, and the function-call that
|
|
Me@22
|
433 * started all the work returns.
|
|
Me@22
|
434 *
|
|
Me@22
|
435 *The function animated by this processor performs the shut-down work.
|
|
Me@22
|
436 */
|
|
Me@22
|
437 VirtProcr *
|
|
Me@22
|
438 VMS__create_the_shutdown_procr()
|
|
Me@22
|
439 {
|
|
Me@22
|
440 return VMS__create_procr( &shutdownFn, NULL );
|
|
Me@22
|
441 }
|
|
Me@22
|
442
|
|
Me@22
|
443
|
|
Me@24
|
444 /*This must be called by the request handler plugin -- it cannot be called
|
|
Me@24
|
445 * from the semantic library "dissipate processor" function -- instead, the
|
|
Me@24
|
446 * semantic layer has to generate a request for the plug-in to call this
|
|
Me@24
|
447 * function.
|
|
Me@24
|
448 *The reason is that this frees the virtual processor's stack -- which is
|
|
Me@24
|
449 * still in use inside semantic library calls!
|
|
Me@24
|
450 *
|
|
Me@24
|
451 *This frees or recycles all the state owned by and comprising the VMS
|
|
Me@24
|
452 * portion of the animating virtual procr. The request handler must first
|
|
Me@24
|
453 * free any semantic data created for the processor that didn't use the
|
|
Me@24
|
454 * VMS_malloc mechanism. Then it calls this, which first asks the malloc
|
|
Me@24
|
455 * system to disown any state that did use VMS_malloc, and then frees the
|
|
Me@24
|
456 * statck and the processor-struct itself.
|
|
Me@24
|
457 *If the dissipated processor is the sole (remaining) owner of VMS__malloc'd
|
|
Me@24
|
458 * state, then that state gets freed (or sent to recycling) as a side-effect
|
|
Me@24
|
459 * of dis-owning it.
|
|
Me@24
|
460 */
|
|
Me@24
|
461 void
|
|
Me@24
|
462 VMS__free_procr_locs( VirtProcr *animatingPr )
|
|
Me@24
|
463 {
|
|
Me@24
|
464 //dis-own all locations owned by this processor, causing to be freed
|
|
Me@24
|
465 // any locations that it is (was) sole owner of
|
|
Me@24
|
466 //TODO: implement VMS__malloc system, including "give up ownership"
|
|
Me@24
|
467
|
|
Me@24
|
468 //The dissipate request might still be attached, so remove and free it
|
|
Me@24
|
469 VMS__remove_and_free_top_request( animatingPr );
|
|
Me@24
|
470 free( animatingPr->startOfStack );
|
|
Me@24
|
471
|
|
Me@24
|
472 //NOTE: initialData was given to the processor, so should either have
|
|
Me@24
|
473 // been alloc'd with VMS__malloc, or freed by the level above animPr.
|
|
Me@24
|
474 //So, all that's left to free here is the stack and the VirtProcr struc
|
|
Me@24
|
475 // itself
|
|
Me@24
|
476 free( animatingPr->startOfStack );
|
|
Me@24
|
477 free( animatingPr );
|
|
Me@24
|
478 }
|
|
Me@24
|
479
|
|
Me@24
|
480
|
|
Me@24
|
481
|
|
Me@22
|
482 /*This is the function run by the special "shut-down" processor
|
|
Me@22
|
483 *
|
|
Me@22
|
484 *The _VMSMasterEnv is needed by this shut down function, so the "wait"
|
|
Me@22
|
485 * function run in the main loop has to free it, and the thread-related
|
|
Me@22
|
486 * locations (coreLoopThdParams a.s.o.).
|
|
Me@22
|
487 *However, the semantic environment and all data malloc'd to VMS can be
|
|
Me@22
|
488 * freed here.
|
|
Me@22
|
489 *
|
|
Me@22
|
490 *NOTE: the semantic plug-in is expected to use VMS__malloc to get all the
|
|
Me@22
|
491 * locations it needs -- they will be automatically freed by the standard
|
|
Me@22
|
492 * "free all owned locations"
|
|
Me@22
|
493 *
|
|
Me@22
|
494 *Free any locations malloc'd to the VMS system (that weren't
|
|
Me@22
|
495 * specified as return-locations).
|
|
Me@22
|
496 *Then create one core-loop shut-down processor for each core loop and puts
|
|
Me@22
|
497 * them all into the workQ.
|
|
Me@22
|
498 */
|
|
Me@22
|
499 void
|
|
Me@22
|
500 shutdownFn( void *dummy, VirtProcr *animatingPr )
|
|
Me@8
|
501 { int coreIdx;
|
|
Me@14
|
502 VirtProcr *shutDownPr;
|
|
Me@22
|
503 CASQueueStruc *workQ = _VMSWorkQ;
|
|
Me@22
|
504
|
|
Me@22
|
505 //free all the locations owned within the VMS system
|
|
Me@22
|
506 //TODO: write VMS__malloc and free.. -- take the DKU malloc as starting pt
|
|
Me@22
|
507
|
|
Me@22
|
508 //make the core loop shut-down processors and put them into the workQ
|
|
Me@8
|
509 for( coreIdx=0; coreIdx < NUM_CORES; coreIdx++ )
|
|
Me@8
|
510 {
|
|
Me@14
|
511 shutDownPr = VMS__create_procr( NULL, NULL );
|
|
Me@14
|
512 shutDownPr->nextInstrPt = _VMSMasterEnv->coreLoopShutDownPt;
|
|
Me@22
|
513 writeCASQ( shutDownPr, workQ );
|
|
Me@8
|
514 }
|
|
Me@22
|
515
|
|
Me@22
|
516 //This is an issue: the animating processor of this function may not
|
|
Me@22
|
517 // get its request handled before all the cores have shutdown.
|
|
Me@22
|
518 //TODO: after all the threads stop, clean out the MasterEnv, the
|
|
Me@22
|
519 // SemanticEnv, and the workQ before returning.
|
|
Me@24
|
520 VMS__dissipate_procr( animatingPr ); //will never come back from this
|
|
Me@12
|
521 }
|
|
Me@12
|
522
|
|
Me@12
|
523
|
|
Me@24
|
524 /*This has to free anything allocated during VMS_init, and any other alloc'd
|
|
Me@24
|
525 * locations that might be left over.
|
|
Me@24
|
526 */
|
|
Me@24
|
527 void
|
|
Me@24
|
528 VMS__shutdown()
|
|
Me@24
|
529 { int i;
|
|
Me@24
|
530
|
|
Me@24
|
531 free( _VMSWorkQ );
|
|
Me@24
|
532 free( _VMSMasterEnv->filledSlots );
|
|
Me@24
|
533 for( i = 0; i < NUM_SCHED_SLOTS; i++ )
|
|
Me@24
|
534 {
|
|
Me@24
|
535 free( _VMSMasterEnv->schedSlots[i] );
|
|
Me@24
|
536 }
|
|
Me@24
|
537
|
|
Me@24
|
538 free( _VMSMasterEnv->schedSlots);
|
|
Me@24
|
539 VMS__free_procr_locs( _VMSMasterEnv->masterVirtPr );
|
|
Me@24
|
540
|
|
Me@24
|
541 free( _VMSMasterEnv );
|
|
Me@24
|
542 }
|
|
Me@24
|
543
|
|
Me@24
|
544
|
|
Me@24
|
545 //===========================================================================
|
|
Me@12
|
546
|
|
Me@12
|
547 inline TSCount getTSCount()
|
|
Me@12
|
548 { unsigned int low, high;
|
|
Me@12
|
549 TSCount out;
|
|
Me@12
|
550
|
|
Me@12
|
551 saveTimeStampCountInto( low, high );
|
|
Me@12
|
552 out = high;
|
|
Me@12
|
553 out = (out << 32) + low;
|
|
Me@12
|
554 return out;
|
|
Me@12
|
555 }
|
|
Me@12
|
556
|
