Robust/src/IR/Flat/BuildCodeMultiCore.java

   1 package IR.Flat;
   2
   3 import java.io.FileOutputStream;
   4 import java.io.PrintWriter;
   5 import java.util.HashSet;
   6 import java.util.Hashtable;
   7 import java.util.Iterator;
   8 import java.util.Queue;
   9 import java.util.Vector;
  10
  11 import Analysis.Locality.LocalityBinding;
  12 import Analysis.Scheduling.Schedule;
  13 import Analysis.TaskStateAnalysis.FEdge;
  14 import Analysis.TaskStateAnalysis.FlagState;
  15 import Analysis.TaskStateAnalysis.SafetyAnalysis;
  16 import Analysis.Prefetch.*;
  17 import IR.ClassDescriptor;
  18 import IR.Descriptor;
  19 import IR.FlagDescriptor;
  20 import IR.MethodDescriptor;
  21 import IR.State;
  22 import IR.TagVarDescriptor;
  23 import IR.TaskDescriptor;
  24 import IR.TypeDescriptor;
  25 import IR.TypeUtil;
  26 import IR.VarDescriptor;
  27 import IR.Tree.DNFFlag;
  28 import IR.Tree.DNFFlagAtom;
  29 import IR.Tree.FlagExpressionNode;
  30 import IR.Tree.TagExpressionList;
  31
  32 public class BuildCodeMultiCore extends BuildCode {
  33     private Vector<Schedule> scheduling;
  34     int coreNum;
  35     Schedule currentSchedule;
  36     Hashtable[] fsate2qnames;
  37     String objqarrayprefix= "objqueuearray4class";
  38     String objqueueprefix = "objqueue4parameter_";
  39     String paramqarrayprefix = "paramqueuearray4task";
  40     String coreqarrayprefix = "paramqueuearrays_core";
  41     String taskprefix = "task_";
  42     String taskarrayprefix = "taskarray_core";
  43     String otqueueprefix = "___otqueue";
  44     int startupcorenum;  // record the core containing startup task, suppose only one core can hava startup object
  45
  46     public BuildCodeMultiCore(State st, Hashtable temptovar, TypeUtil typeutil, SafetyAnalysis sa, Vector<Schedule> scheduling, int coreNum, PrefetchAnalysis pa) {
  47         super(st, temptovar, typeutil, sa, pa);
  48         this.scheduling = scheduling;
  49         this.coreNum = coreNum;
  50         this.currentSchedule = null;
  51         this.fsate2qnames = null;
  52         this.startupcorenum = 0;
  53
  54         // sometimes there are extra cores then needed in scheduling
  55         // TODO
  56         // currently, it is guaranteed that in scheduling, the corenum
  57         // is started from 0 and continuous.
  58         // MAY need modification here in the future when take hardware
  59         // information into account.
  60         if(this.scheduling.size() < this.coreNum) {
  61             this.coreNum = this.scheduling.size();
  62         }
  63     }
  64
  65     public void buildCode() {
  66         /* Create output streams to write to */
  67         PrintWriter outclassdefs=null;
  68         PrintWriter outstructs=null;
  69         PrintWriter outmethodheader=null;
  70         PrintWriter outmethod=null;
  71         PrintWriter outvirtual=null;
  72         PrintWriter outtask=null;
  73         PrintWriter outtaskdefs=null;
  74         //PrintWriter outoptionalarrays=null;
  75         //PrintWriter optionalheaders=null;
  76
  77         try {
  78             outstructs=new PrintWriter(new FileOutputStream(PREFIX+"structdefs.h"), true);
  79             outmethodheader=new PrintWriter(new FileOutputStream(PREFIX+"methodheaders.h"), true);
  80             outclassdefs=new PrintWriter(new FileOutputStream(PREFIX+"classdefs.h"), true);
  81             outvirtual=new PrintWriter(new FileOutputStream(PREFIX+"virtualtable.h"), true);
  82             outmethod=new PrintWriter(new FileOutputStream(PREFIX+"methods.c"), true);
  83             if (state.TASK) {
  84                 outtask=new PrintWriter(new FileOutputStream(PREFIX+"task.h"), true);
  85                 outtaskdefs=new PrintWriter(new FileOutputStream(PREFIX+"taskdefs.c"), true);
  86                 /* optional
  87                  if (state.OPTIONAL){
  88                     outoptionalarrays=new PrintWriter(new FileOutputStream(PREFIX+"optionalarrays.c"), true);
  89                     optionalheaders=new PrintWriter(new FileOutputStream(PREFIX+"optionalstruct.h"), true);
  90                 } */
  91             }
  92             /*if (state.structfile!=null) {
  93                 outrepairstructs=new PrintWriter(new FileOutputStream(PREFIX+state.structfile+".struct"), true);
  94             }*/
  95         } catch (Exception e) {
  96             e.printStackTrace();
  97             System.exit(-1);
  98         }
  99
 100         /* Build the virtual dispatch tables */
 101         super.buildVirtualTables(outvirtual);
 102
 103         /* Output includes */
 104         outmethodheader.println("#ifndef METHODHEADERS_H");
 105         outmethodheader.println("#define METHODHEADERS_H");
 106         outmethodheader.println("#include \"structdefs.h\"");
 107         /*if (state.DSM)
 108             outmethodheader.println("#include \"dstm.h\"");*/
 109
 110         /* Output Structures */
 111         super.outputStructs(outstructs);
 112
 113         // Output the C class declarations
 114         // These could mutually reference each other
 115         super.outputClassDeclarations(outclassdefs);
 116
 117         // Output function prototypes and structures for parameters
 118         Iterator it=state.getClassSymbolTable().getDescriptorsIterator();
 119         int numclasses = 0;
 120         while(it.hasNext()) {
 121             ++numclasses;
 122             ClassDescriptor cn=(ClassDescriptor)it.next();
 123             super.generateCallStructs(cn, outclassdefs, outstructs, outmethodheader);
 124         }
 125         outclassdefs.close();
 126
 127         if (state.TASK) {
 128             /* Map flags to integers */
 129             /* The runtime keeps track of flags using these integers */
 130             it=state.getClassSymbolTable().getDescriptorsIterator();
 131             while(it.hasNext()) {
 132                 ClassDescriptor cn=(ClassDescriptor)it.next();
 133                 super.mapFlags(cn);
 134             }
 135             /* Generate Tasks */
 136             generateTaskStructs(outstructs, outmethodheader);
 137
 138             /* Outputs generic task structures if this is a task
 139                program */
 140             outputTaskTypes(outtask);
 141         }
 142
 143         /* Build the actual methods */
 144         super.outputMethods(outmethod);
 145
 146         if (state.TASK) {
 147             Iterator[] taskits = new Iterator[this.coreNum];
 148             for(int i = 0; i < taskits.length; ++i) {
 149                 taskits[i] = null;
 150             }
 151             int[] numtasks = new int[this.coreNum];
 152             int[][] numqueues = new int[this.coreNum][numclasses];
 153             /* Output code for tasks */
 154             for(int i = 0; i < this.scheduling.size(); ++i) {
 155                 this.currentSchedule = this.scheduling.elementAt(i);
 156                 outputTaskCode(outtaskdefs, outmethod, outtask, taskits, numtasks, numqueues);
 157             }
 158
 159             // Output task descriptors
 160             boolean comma = false;
 161             outtaskdefs.println("struct parameterwrapper ** objectqueues[][NUMCLASSES] = {");
 162             boolean needcomma = false;
 163             for(int i = 0; i < numqueues.length ; ++i) {
 164                 if(needcomma) {
 165                     outtaskdefs.println(",");
 166                 } else {
 167                     needcomma = true;
 168                 }
 169                 outtaskdefs.println("/* object queue array for core " + i + "*/");
 170                 outtaskdefs.print("{");
 171                 comma = false;
 172                 for(int j = 0; j < numclasses; ++j) {
 173                     if(comma) {
 174                         outtaskdefs.println(",");
 175                     } else {
 176                         comma = true;
 177                     }
 178                     outtaskdefs.print(this.objqarrayprefix + j + "_core" + i);
 179                 }
 180                 outtaskdefs.print("}");
 181             }
 182             outtaskdefs.println("};");
 183             needcomma = false;
 184             outtaskdefs.println("int numqueues[][NUMCLASSES] = {");
 185             for(int i = 0; i < numqueues.length; ++i) {
 186                 if(needcomma) {
 187                     outtaskdefs.println(",");
 188                 } else {
 189                     needcomma = true;
 190                 }
 191                 int[] tmparray = numqueues[i];
 192                 comma = false;
 193                 outtaskdefs.print("{");
 194                 for(int j = 0; j < tmparray.length; ++j) {
 195                     if(comma) {
 196                         outtaskdefs.print(",");
 197                     } else {
 198                         comma = true;
 199                     }
 200                     outtaskdefs.print(tmparray[j]);
 201                 }
 202                 outtaskdefs.print("}");
 203             }
 204             outtaskdefs.println("};");
 205
 206             /* parameter queue arrays for all the tasks*/
 207             outtaskdefs.println("struct parameterwrapper *** paramqueues[] = {");
 208             needcomma = false;
 209             for(int i = 0; i < this.coreNum ; ++i) {
 210                 if(needcomma) {
 211                     outtaskdefs.println(",");
 212                 } else {
 213                     needcomma = true;
 214                 }
 215                 outtaskdefs.println("/* parameter queue array for core " + i + "*/");
 216                 outtaskdefs.print(this.coreqarrayprefix + i);
 217             }
 218             outtaskdefs.println("};");
 219
 220             for(int i = 0; i < taskits.length; ++i) {
 221                 outtaskdefs.println("struct taskdescriptor * " + this.taskarrayprefix + i + "[]={");
 222                 Iterator taskit = taskits[i];
 223                 if(taskit != null) {
 224                     boolean first=true;
 225                     while(taskit.hasNext()) {
 226                         TaskDescriptor td=(TaskDescriptor)taskit.next();
 227                         if (first)
 228                             first=false;
 229                         else
 230                             outtaskdefs.println(",");
 231                         outtaskdefs.print("&" + this.taskprefix +td.getCoreSafeSymbol(i));
 232                     }
 233                 }
 234                 outtaskdefs.println();
 235                 outtaskdefs.println("};");
 236             }
 237             outtaskdefs.println("struct taskdescriptor ** taskarray[]= {");
 238             comma = false;
 239             for(int i = 0; i < taskits.length; ++i) {
 240                 if (comma)
 241                     outtaskdefs.println(",");
 242                 else
 243                     comma = true;
 244                 outtaskdefs.print(this.taskarrayprefix + i);
 245             }
 246             outtaskdefs.println("};");
 247
 248             outtaskdefs.print("int numtasks[]= {");
 249             comma = false;
 250             for(int i = 0; i < taskits.length; ++i) {
 251                 if (comma)
 252                     outtaskdefs.print(",");
 253                 else
 254                     comma=true;
 255                 outtaskdefs.print(numtasks[i]);
 256             }
 257             outtaskdefs.println("};");
 258             outtaskdefs.println("int corenum=0;");
 259
 260             outtaskdefs.close();
 261             outtask.println("#endif");
 262             outtask.close();
 263             /* Record maximum number of task parameters */
 264             outstructs.println("#define MAXTASKPARAMS "+maxtaskparams);
 265             /* Record maximum number of all types, i.e. length of classsize[] */
 266             outstructs.println("#define NUMTYPES "+(state.numClasses() + state.numArrays()));
 267             /* Record number of cores */
 268             outstructs.println("#define NUMCORES "+this.coreNum);
 269             /* Record number of core containing startup task */
 270             outstructs.println("#define STARTUPCORE "+this.startupcorenum);
 271             //outstructs.println("#define STARTUPCORESTR \""+this.startupcorenum+"\"");
 272         } //else if (state.main!=null) {
 273         /* Generate main method */
 274         // outputMainMethod(outmethod);
 275         //}
 276
 277         /* Generate information for task with optional parameters */
 278         /*if (state.TASK&&state.OPTIONAL){
 279             generateOptionalArrays(outoptionalarrays, optionalheaders, state.getAnalysisResult(), state.getOptionalTaskDescriptors());
 280             outoptionalarrays.close();
 281         } */
 282
 283         /* Output structure definitions for repair tool */
 284         /*if (state.structfile!=null) {
 285             buildRepairStructs(outrepairstructs);
 286             outrepairstructs.close();
 287         }*/
 288
 289         /* Close files */
 290         outmethodheader.println("#endif");
 291         outmethodheader.close();
 292         outmethod.close();
 293         outstructs.println("#endif");
 294         outstructs.close();
 295     }
 296
 297     /** This function outputs (1) structures that parameters are
 298      * passed in (when PRECISE GC is enabled) and (2) function
 299      * prototypes for the tasks */
 300
 301     private void generateTaskStructs(PrintWriter output, PrintWriter headersout) {
 302         /* Cycle through tasks */
 303         for(int i = 0; i < this.scheduling.size(); ++i) {
 304             Schedule tmpschedule = this.scheduling.elementAt(i);
 305             int num = tmpschedule.getCoreNum();
 306             Iterator<TaskDescriptor> taskit = tmpschedule.getTasks().iterator();
 307
 308             while(taskit.hasNext()) {
 309                 /* Classify parameters */
 310                 TaskDescriptor task=taskit.next();
 311                 FlatMethod fm=state.getMethodFlat(task);
 312                 super.generateTempStructs(fm, null);
 313
 314                 ParamsObject objectparams=(ParamsObject) paramstable.get(task);
 315                 TempObject objecttemps=(TempObject) tempstable.get(task);
 316
 317                 /* Output parameter structure */
 318                 if (GENERATEPRECISEGC) {
 319                     output.println("struct "+task.getCoreSafeSymbol(num)+"_params {");
 320                     output.println("  int size;");
 321                     output.println("  void * next;");
 322                     for(int j=0;j<objectparams.numPointers();j++) {
 323                         TempDescriptor temp=objectparams.getPointer(j);
 324                         output.println("  struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
 325                     }
 326
 327                     output.println("};\n");
 328                     if ((objectparams.numPointers()+fm.numTags())>maxtaskparams) {
 329                         maxtaskparams=objectparams.numPointers()+fm.numTags();
 330                     }
 331                 }
 332
 333                 /* Output temp structure */
 334                 if (GENERATEPRECISEGC) {
 335                     output.println("struct "+task.getCoreSafeSymbol(num)+"_locals {");
 336                     output.println("  int size;");
 337                     output.println("  void * next;");
 338                     for(int j=0;j<objecttemps.numPointers();j++) {
 339                         TempDescriptor temp=objecttemps.getPointer(j);
 340                         if (temp.getType().isNull())
 341                             output.println("  void * "+temp.getSafeSymbol()+";");
 342                         else if(temp.getType().isTag())
 343                             output.println("  struct "+
 344                                     (new TypeDescriptor(typeutil.getClass(TypeUtil.TagClass))).getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
 345                         else
 346                             output.println("  struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+";");
 347                     }
 348                     output.println("};\n");
 349                 }
 350
 351                 /* Output task declaration */
 352                 headersout.print("void " + task.getCoreSafeSymbol(num)+"(");
 353
 354                 if (GENERATEPRECISEGC) {
 355                     headersout.print("struct "+task.getCoreSafeSymbol(num)+"_params * "+paramsprefix);
 356                 } else
 357                     headersout.print("void * parameterarray[]");
 358                 headersout.println(");\n");
 359             }
 360         }
 361
 362     }
 363
 364     /* This method outputs code for each task. */
 365
 366     private void outputTaskCode(PrintWriter outtaskdefs, PrintWriter outmethod, PrintWriter outtask, Iterator[] taskits, int[] numtasks,
 367                                 int[][] numqueues) {
 368         /* Compile task based program */
 369         outtaskdefs.println("#include \"task.h\"");
 370         outtaskdefs.println("#include \"methodheaders.h\"");
 371
 372         /* Output object transfer queues into method.c*/
 373         generateObjectTransQueues(outmethod);
 374
 375         //Vector[] qnames = new Vector[2];
 376         int numclasses = numqueues[0].length;
 377         Vector qnames[]= new Vector[numclasses];
 378         for(int i = 0; i < qnames.length; ++i) {
 379             qnames[i] = null;
 380         }
 381         Iterator<TaskDescriptor> taskit=this.currentSchedule.getTasks().iterator();
 382         while(taskit.hasNext()) {
 383             TaskDescriptor td=taskit.next();
 384             FlatMethod fm=state.getMethodFlat(td);
 385             generateTaskMethod(fm, null, outmethod);
 386             generateTaskDescriptor(outtaskdefs, outtask, fm, td, qnames);
 387         }
 388
 389         // generate queuearray for this core
 390         int num = this.currentSchedule.getCoreNum();
 391         boolean comma = false;
 392         for(int i = 0; i < qnames.length; ++i) {
 393             outtaskdefs.println("/* object queue array for class " + i + " on core " + num + "*/");
 394             outtaskdefs.println("struct parameterwrapper * " + this.objqarrayprefix + i + "_core" + num + "[] = {");
 395             comma = false;
 396             Vector tmpvector = qnames[i];
 397             if(tmpvector != null) {
 398                 for(int j = 0; j < tmpvector.size(); ++j) {
 399                     if(comma) {
 400                         outtaskdefs.println(",");
 401                     } else {
 402                         comma = true;
 403                     }
 404                    outtaskdefs.print("&" + tmpvector.elementAt(j));
 405                 }
 406                 numqueues[num][i] = tmpvector.size();
 407             } else {
 408                 numqueues[num][i] = 0;
 409             }
 410             outtaskdefs.println("};");
 411         }
 412
 413         /* All the queues for tasks residing on this core*/
 414         comma = false;
 415         outtaskdefs.println("/* object queue array for tasks on core " + num + "*/");
 416         outtaskdefs.println("struct parameterwrapper ** " + this.coreqarrayprefix + num + "[] = {");
 417         taskit=this.currentSchedule.getTasks().iterator();
 418         while(taskit.hasNext()) {
 419             if (comma) {
 420                 outtaskdefs.println(",");
 421             } else {
 422                 comma = true;
 423             }
 424             TaskDescriptor td=taskit.next();
 425             outtaskdefs.print(this.paramqarrayprefix + td.getCoreSafeSymbol(num));
 426         }
 427         outtaskdefs.println("};");
 428
 429         // record the iterator of tasks on this core
 430         taskit=this.currentSchedule.getTasks().iterator();
 431         taskits[num] = taskit;
 432         numtasks[num] = this.currentSchedule.getTasks().size();
 433     }
 434
 435     /** Prints out definitions for generic task structures */
 436     private void outputTaskTypes(PrintWriter outtask) {
 437         outtask.println("#ifndef _TASK_H");
 438         outtask.println("#define _TASK_H");
 439         outtask.println("#include \"ObjectHash.h\"");
 440         outtask.println("#include \"structdefs.h\"");
 441         outtask.println("#include \"Queue.h\"");
 442         outtask.println("#include <string.h>");
 443         outtask.println("#ifdef RAW");
 444         outtask.println("#include <raw.h>");
 445         outtask.println("#endif");
 446         outtask.println();
 447         outtask.println("struct tagobjectiterator {");
 448         outtask.println("  int istag; /* 0 if object iterator, 1 if tag iterator */");
 449         outtask.println("  struct ObjectIterator it; /* Object iterator */");
 450         outtask.println("  struct ObjectHash * objectset;");
 451         outtask.println("#ifdef OPTIONAL");
 452         outtask.println("  int failedstate;");
 453         outtask.println("#endif");
 454         outtask.println("  int slot;");
 455         outtask.println("  int tagobjindex; /* Index for tag or object depending on use */");
 456         outtask.println("  /*if tag we have an object binding */");
 457         outtask.println("  int tagid;");
 458         outtask.println("  int tagobjectslot;");
 459         outtask.println("  /*if object, we may have one or more tag bindings */");
 460         outtask.println("  int numtags;");
 461         outtask.println("  int tagbindings[MAXTASKPARAMS-1]; /* list slots */");
 462         outtask.println("};");
 463         outtask.println();
 464         outtask.println("struct parameterwrapper {");
 465         outtask.println("  //int type;");
 466         outtask.println("  struct ObjectHash * objectset;");
 467         outtask.println("  int numberofterms;");
 468         outtask.println("  int * intarray;");
 469         outtask.println("  int numbertags;");
 470         outtask.println("  int * tagarray;");
 471         outtask.println("  struct taskdescriptor * task;");
 472         outtask.println("  int slot;");
 473         outtask.println("  struct tagobjectiterator iterators[MAXTASKPARAMS-1];");
 474         outtask.println("};");
 475         outtask.println();
 476         outtask.println("extern struct parameterwrapper ** objectqueues[][NUMCLASSES];");
 477         outtask.println("extern int numqueues[][NUMCLASSES];");
 478         outtask.println();
 479         outtask.println("struct parameterdescriptor {");
 480         outtask.println("  int type;");
 481         outtask.println("  int numberterms;");
 482         outtask.println("  int *intarray;");
 483         outtask.println("  struct parameterwrapper * queue;");
 484         outtask.println("  int numbertags;");
 485         outtask.println("  int *tagarray;");
 486         outtask.println("};");
 487         outtask.println();
 488         outtask.println("struct taskdescriptor {");
 489         outtask.println("  void * taskptr;");
 490         outtask.println("  int numParameters;");
 491         outtask.println("  int numTotal;");
 492         outtask.println("  struct parameterdescriptor **descriptorarray;");
 493         outtask.println("  char * name;");
 494         outtask.println("};");
 495         outtask.println();
 496         outtask.println("extern struct taskdescriptor ** taskarray[];");
 497         outtask.println("extern int numtasks[];");
 498         outtask.println("extern int corenum;");  // define corenum to identify different core
 499         outtask.println("extern struct parameterwrapper *** paramqueues[];");
 500         outtask.println();
 501     }
 502
 503     private void generateObjectTransQueues(PrintWriter output) {
 504         if(this.fsate2qnames == null) {
 505             this.fsate2qnames = new Hashtable[this.coreNum];
 506             for(int i = 0; i < this.fsate2qnames.length; ++i) {
 507                 this.fsate2qnames[i] = null;
 508             }
 509         }
 510         int num = this.currentSchedule.getCoreNum();
 511         assert(this.fsate2qnames[num] == null);
 512         Hashtable<FlagState, String> flag2qname = new Hashtable<FlagState, String>();
 513         this.fsate2qnames[num] = flag2qname;
 514         Hashtable<FlagState, Queue<Integer>> targetCoreTbl = this.currentSchedule.getTargetCoreTable();
 515         if(targetCoreTbl != null) {
 516             Object[] keys = targetCoreTbl.keySet().toArray();
 517             output.println();
 518             output.println("/* Object transfer queues for core" + num + ".*/");
 519             for(int i = 0; i < keys.length; ++i) {
 520                 FlagState tmpfstate = (FlagState)keys[i];
 521                 Object[] targetcores = targetCoreTbl.get(tmpfstate).toArray();
 522                 String queuename = this.otqueueprefix + tmpfstate.getClassDescriptor().getCoreSafeSymbol(num) + tmpfstate.getuid() + "___";
 523                 String queueins = queuename + "ins";
 524                 flag2qname.put(tmpfstate, queuename);
 525                 output.println("struct " + queuename + " {");
 526                 output.println("  int * cores;");
 527                 output.println("  int index;");
 528                 output.println("  int length;");
 529                 output.println("};");
 530                 output.print("int " + queuename + "cores[] = {");
 531                 for(int j = 0; j < targetcores.length; ++j) {
 532                     if(j > 0) {
 533                         output.print(", ");
 534                     }
 535                     output.print(((Integer)targetcores[j]).intValue());
 536                 }
 537                 output.println("};");
 538                 output.println("struct " + queuename + " " + queueins + "= {");
 539                 output.println(/*".cores = " + */queuename + "cores,");
 540                 output.println(/*".index = " + */"0,");
 541                 output.println(/*".length = " +*/ targetcores.length + "};");
 542             }
 543         }
 544         output.println();
 545     }
 546
 547     private void generateTaskMethod(FlatMethod fm, LocalityBinding lb, PrintWriter output) {
 548         /*if (State.PRINTFLAT)
 549             System.out.println(fm.printMethod());*/
 550         TaskDescriptor task=fm.getTask();
 551         assert(task != null);
 552         int num = this.currentSchedule.getCoreNum();
 553
 554         //ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:task);
 555         generateTaskHeader(fm, lb, task,output);
 556         TempObject objecttemp=(TempObject) tempstable.get(lb!=null?lb:task);
 557         /*if (state.DSM&&lb.getHasAtomic()) {
 558             output.println("transrecord_t * trans;");
 559         }*/
 560
 561         if (GENERATEPRECISEGC) {
 562             output.print("   struct "+task.getCoreSafeSymbol(num)+"_locals "+localsprefix+"={");
 563
 564             output.print(objecttemp.numPointers()+",");
 565             output.print(paramsprefix);
 566             for(int j=0;j<objecttemp.numPointers();j++)
 567                 output.print(", NULL");
 568             output.println("};");
 569         }
 570
 571         for(int i=0;i<objecttemp.numPrimitives();i++) {
 572             TempDescriptor td=objecttemp.getPrimitive(i);
 573             TypeDescriptor type=td.getType();
 574             if (type.isNull())
 575                 output.println("   void * "+td.getSafeSymbol()+";");
 576             else if (type.isClass()||type.isArray())
 577                 output.println("   struct "+type.getSafeSymbol()+" * "+td.getSafeSymbol()+";");
 578             else
 579                 output.println("   "+type.getSafeSymbol()+" "+td.getSafeSymbol()+";");
 580         }
 581
 582         for(int i = 0; i < fm.numParameters(); ++i) {
 583             TempDescriptor temp = fm.getParameter(i);
 584             output.println("   int "+generateTempFlagName(fm, temp, lb)+" = "+super.generateTemp(fm, temp, lb)+
 585                "->flag;");
 586         }
 587
 588         /* Assign labels to FlatNode's if necessary.*/
 589
 590         Hashtable<FlatNode, Integer> nodetolabel=super.assignLabels(fm);
 591
 592         /* Check to see if we need to do a GC if this is a
 593          * multi-threaded program...*/
 594
 595         /*if ((state.THREAD||state.DSM)&&GENERATEPRECISEGC) {
 596             if (state.DSM&&lb.isAtomic())
 597                 output.println("checkcollect2(&"+localsprefix+",trans);");
 598             else
 599                 output.println("checkcollect(&"+localsprefix+");");
 600         }*/
 601
 602         /* Create queues to store objects need to be transferred to other cores and their destination*/
 603         output.println("   struct Queue * totransobjqueue = createQueue();");
 604         output.println("   struct transObjInfo * tmpObjInfo = NULL;");
 605
 606         /* generate print information for RAW version */
 607         output.println("#ifdef RAW");
 608         output.println("int tmpsum = 0;");
 609         output.println("char * taskname = \"" + task.getSymbol() + "\";");
 610         output.println("int tmplen = " + task.getSymbol().length() + ";");
 611         output.println("int tmpindex = 1;");
 612         output.println("for(;tmpindex < tmplen; tmpindex++) {");
 613         output.println("   tmpsum = tmpsum * 10 + *(taskname + tmpindex) - '0';");
 614         output.println("}");
 615         output.println("#ifdef RAWDEBUG");
 616         output.println("raw_test_pass(0xAAAA);");
 617         output.println("raw_test_pass_reg(tmpsum);");
 618         output.println("#endif");
 619         output.println("#endif");
 620
 621         for(int i = 0; i < fm.numParameters(); ++i) {
 622             TempDescriptor temp = fm.getParameter(i);
 623             output.println("   ++" + super.generateTemp(fm, temp, lb)+"->version;");
 624         }
 625
 626         /* Do the actual code generation */
 627         FlatNode current_node=null;
 628         HashSet tovisit=new HashSet();
 629         HashSet visited=new HashSet();
 630         tovisit.add(fm.getNext(0));
 631         while(current_node!=null||!tovisit.isEmpty()) {
 632             if (current_node==null) {
 633                 current_node=(FlatNode)tovisit.iterator().next();
 634                 tovisit.remove(current_node);
 635             }
 636             visited.add(current_node);
 637             if (nodetolabel.containsKey(current_node))
 638                 output.println("L"+nodetolabel.get(current_node)+":");
 639             /*if (state.INSTRUCTIONFAILURE) {
 640                 if (state.THREAD||state.DSM) {
 641                     output.println("if ((++instructioncount)>failurecount) {instructioncount=0;injectinstructionfailure();}");
 642                 }
 643                 else
 644                     output.println("if ((--instructioncount)==0) injectinstructionfailure();");
 645             }*/
 646             if (current_node.numNext()==0) {
 647                 output.print("   ");
 648                 super.generateFlatNode(fm, lb, current_node, output);
 649                 if (current_node.kind()!=FKind.FlatReturnNode) {
 650                     //output.println("   flushAll();");
 651                     output.println("raw_flush_entire_cache();");
 652                     outputTransCode(output);
 653                     output.println("   return;");
 654                 }
 655                 current_node=null;
 656             } else if(current_node.numNext()==1) {
 657                 output.print("   ");
 658                 super.generateFlatNode(fm, lb, current_node, output);
 659                 FlatNode nextnode=current_node.getNext(0);
 660                 if (visited.contains(nextnode)) {
 661                     output.println("goto L"+nodetolabel.get(nextnode)+";");
 662                     current_node=null;
 663                 } else
 664                     current_node=nextnode;
 665             } else if (current_node.numNext()==2) {
 666                 /* Branch */
 667                 output.print("   ");
 668                 super.generateFlatCondBranch(fm, lb, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
 669                 if (!visited.contains(current_node.getNext(1)))
 670                     tovisit.add(current_node.getNext(1));
 671                 if (visited.contains(current_node.getNext(0))) {
 672                     output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
 673                     current_node=null;
 674                 } else
 675                     current_node=current_node.getNext(0);
 676             } else throw new Error();
 677         }
 678
 679         output.println("}\n\n");
 680     }
 681
 682     /** This method outputs TaskDescriptor information */
 683     private void generateTaskDescriptor(PrintWriter output, PrintWriter outtask, FlatMethod fm, TaskDescriptor task, Vector[] qnames) {
 684         int num = this.currentSchedule.getCoreNum();
 685
 686         output.println("/* TaskDescriptor information for task " + task.getSymbol() + " on core " + num + "*/");
 687
 688         for (int i=0;i<task.numParameters();i++) {
 689             VarDescriptor param_var=task.getParameter(i);
 690             TypeDescriptor param_type=task.getParamType(i);
 691             FlagExpressionNode param_flag=task.getFlag(param_var);
 692             TagExpressionList param_tag=task.getTag(param_var);
 693
 694             int dnfterms;
 695             if (param_flag==null) {
 696                 output.println("int parameterdnf_"+i+"_"+task.getCoreSafeSymbol(num)+"[]={");
 697                 output.println("0x0, 0x0 };");
 698                 dnfterms=1;
 699             } else {
 700                 DNFFlag dflag=param_flag.getDNF();
 701                 dnfterms=dflag.size();
 702
 703                 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
 704                 output.println("int parameterdnf_"+i+"_"+task.getCoreSafeSymbol(num)+"[]={");
 705                 for(int j=0;j<dflag.size();j++) {
 706                     if (j!=0)
 707                         output.println(",");
 708                     Vector term=dflag.get(j);
 709                     int andmask=0;
 710                     int checkmask=0;
 711                     for(int k=0;k<term.size();k++) {
 712                         DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
 713                         FlagDescriptor fd=dfa.getFlag();
 714                         boolean negated=dfa.getNegated();
 715                         int flagid=1<<((Integer)flags.get(fd)).intValue();
 716                         andmask|=flagid;
 717                         if (!negated)
 718                             checkmask|=flagid;
 719                     }
 720                     output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
 721                 }
 722                 output.println("};");
 723             }
 724
 725             output.println("int parametertag_"+i+"_"+task.getCoreSafeSymbol(num)+"[]={");
 726             //BUG...added next line to fix, test with any task program
 727             if (param_tag!=null)
 728                 for(int j=0;j<param_tag.numTags();j++) {
 729                     if (j!=0)
 730                         output.println(",");
 731                     /* for each tag we need */
 732                     /* which slot it is */
 733                     /* what type it is */
 734                     TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
 735                     TempDescriptor tmp=param_tag.getTemp(j);
 736                     int slot=fm.getTagInt(tmp);
 737                     output.println(slot+", "+state.getTagId(tvd.getTag()));
 738                 }
 739             output.println("};");
 740
 741             // generate object queue for this parameter
 742             String qname = this.objqueueprefix+i+"_"+task.getCoreSafeSymbol(num);
 743             if(param_type.getClassDesc().getSymbol().equals("StartupObject")) {
 744                 this.startupcorenum = num;
 745             }
 746             if(qnames[param_type.getClassDesc().getId()] == null) {
 747                 qnames[param_type.getClassDesc().getId()] = new Vector();
 748             }
 749             qnames[param_type.getClassDesc().getId()].addElement(qname);
 750             outtask.println("extern struct parameterwrapper " + qname + ";");
 751             output.println("struct parameterwrapper " + qname + "={");
 752             output.println(".objectset = 0,"); // objectset
 753             output.println("/* number of DNF terms */ .numberofterms = "+dnfterms+","); // numberofterms
 754             output.println(".intarray = parameterdnf_"+i+"_"+task.getCoreSafeSymbol(num)+","); // intarray
 755             // numbertags
 756             if (param_tag!=null)
 757                 output.println("/* number of tags */ .numbertags = "+param_tag.numTags()+",");
 758             else
 759                 output.println("/* number of tags */ .numbertags = 0,");
 760             output.println(".tagarray = parametertag_"+i+"_"+task.getCoreSafeSymbol(num)+","); // tagarray
 761             output.println(".task = 0,"); // task
 762             output.println(".slot = " + i + ",");// slot
 763             // iterators
 764             output.println("};");
 765
 766             output.println("struct parameterdescriptor parameter_"+i+"_"+task.getCoreSafeSymbol(num)+"={");
 767             output.println("/* type */"+param_type.getClassDesc().getId()+",");
 768             output.println("/* number of DNF terms */"+dnfterms+",");
 769             output.println("parameterdnf_"+i+"_"+task.getCoreSafeSymbol(num)+","); // intarray
 770             output.println("&" + qname + ","); // queue
 771             //BUG, added next line to fix and else statement...test
 772             //with any task program
 773             if (param_tag!=null)
 774                 output.println("/* number of tags */"+param_tag.numTags()+",");
 775             else
 776                 output.println("/* number of tags */ 0,");
 777             output.println("parametertag_"+i+"_"+task.getCoreSafeSymbol(num)); // tagarray
 778             output.println("};");
 779         }
 780
 781         /* parameter queues for this task*/
 782         output.println("struct parameterwrapper * " + this.paramqarrayprefix + task.getCoreSafeSymbol(num)+"[] = {");
 783         for (int i=0;i<task.numParameters();i++) {
 784             if (i!=0)
 785                 output.println(",");
 786             output.print("&" + this.objqueueprefix + i + "_" + task.getCoreSafeSymbol(num));
 787         }
 788         output.println("};");
 789
 790         output.println("struct parameterdescriptor * parameterdescriptors_"+task.getCoreSafeSymbol(num)+"[] = {");
 791         for (int i=0;i<task.numParameters();i++) {
 792             if (i!=0)
 793                 output.println(",");
 794             output.print("&parameter_"+i+"_"+task.getCoreSafeSymbol(num));
 795         }
 796         output.println("};");
 797
 798         output.println("struct taskdescriptor " + this.taskprefix + task.getCoreSafeSymbol(num) + "={");
 799         output.println("&"+task.getCoreSafeSymbol(num)+",");
 800         output.println("/* number of parameters */" +task.numParameters() + ",");
 801         int numtotal=task.numParameters()+fm.numTags();
 802         output.println("/* number total parameters */" +numtotal + ",");
 803         output.println("parameterdescriptors_"+task.getCoreSafeSymbol(num)+",");
 804         output.println("\""+task.getSymbol()+"\"");
 805         output.println("};");
 806
 807         output.println();
 808     }
 809
 810     /** This method generates header information for the task
 811      *  referenced by the Descriptor des. */
 812
 813     private void generateTaskHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
 814         /* Print header */
 815         ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:des);
 816         TaskDescriptor task=(TaskDescriptor) des;
 817
 818         int num = this.currentSchedule.getCoreNum();
 819         //catch the constructor case
 820         output.print("void ");
 821         output.print(task.getCoreSafeSymbol(num)+"(");
 822
 823         boolean printcomma=false;
 824         if (GENERATEPRECISEGC) {
 825             output.print("struct "+task.getCoreSafeSymbol(num)+"_params * "+paramsprefix);
 826             printcomma=true;
 827         }
 828
 829         /*if (state.DSM&&lb.isAtomic()) {
 830             if (printcomma)
 831                 output.print(", ");
 832             output.print("transrecord_t * trans");
 833             printcomma=true;
 834         }*/
 835
 836         if (!GENERATEPRECISEGC) {
 837             /* Imprecise Task */
 838             output.println("void * parameterarray[]) {");
 839             /* Unpack variables */
 840             for(int i=0;i<objectparams.numPrimitives();i++) {
 841                 TempDescriptor temp=objectparams.getPrimitive(i);
 842                 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
 843             }
 844             for(int i=0;i<fm.numTags();i++) {
 845                 TempDescriptor temp=fm.getTag(i);
 846                 int offset=i+objectparams.numPrimitives();
 847                 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+i+"___=parameterarray["+offset+"];");// add i to fix bugs of duplicate definition of tags
 848             }
 849
 850             if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
 851                 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
 852         } else output.println(") {");
 853     }
 854
 855     protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp,
 856             PrintWriter output, int ormask, int andmask) {
 857         if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
 858             output.println("flagorandinit("+super.generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
 859         } else {
 860             int num = this.currentSchedule.getCoreNum();
 861             ClassDescriptor cd = temp.getType().getClassDesc();
 862             Vector<FlagState> initfstates = ffan.getInitFStates(cd);
 863             for(int i = 0; i < initfstates.size(); ++i) {
 864                 FlagState tmpFState = initfstates.elementAt(i);
 865                 output.println("{");
 866                 QueueInfo qinfo = outputqueues(tmpFState, num, output, false);
 867                 output.println("flagorand("+super.generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+
 868                                ", 0x"+Integer.toHexString(andmask)+", " + qinfo.qname +
 869                                ", " + qinfo.length + ");");
 870                 output.println("}");
 871             }
 872         }
 873     }
 874
 875     protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp,
 876                                             PrintWriter output) {
 877         ClassDescriptor cd = temp.getType().getClassDesc();
 878         Vector<FlagState> initfstates = null;
 879         Vector[] targetFStates = null;
 880         if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
 881             targetFStates = new Vector[1];
 882             targetFStates[0] = ffan.getTargetFStates4NewObj(cd);
 883         } else {
 884             initfstates = ffan.getInitFStates(cd);
 885             targetFStates = new Vector[initfstates.size()];
 886             for(int i = 0; i < initfstates.size(); ++i) {
 887                 FlagState fs = initfstates.elementAt(i);
 888                 targetFStates[i] = ffan.getTargetFStates(fs);
 889
 890                 if(!fs.isSetmask()) {
 891                     Hashtable flags=(Hashtable)flagorder.get(cd);
 892                     int andmask=0;
 893                     int checkmask=0;
 894                     Iterator it_flags = fs.getFlags();
 895                     while(it_flags.hasNext()) {
 896                         FlagDescriptor fd = (FlagDescriptor)it_flags.next();
 897                         int flagid=1<<((Integer)flags.get(fd)).intValue();
 898                         andmask|=flagid;
 899                         checkmask|=flagid;
 900                     }
 901                     fs.setAndmask(andmask);
 902                     fs.setCheckmask(checkmask);
 903                     fs.setSetmask(true);
 904                 }
 905             }
 906         }
 907         boolean isolate = true; // check if this flagstate can associate to some task with multiple params which can
 908                                 // reside on multiple cores
 909         if((this.currentSchedule == null) && (fm.getMethod().getClassDesc().getSymbol().equals("ServerSocket"))) {
 910             // ServerSocket object will always reside on current core
 911             for(int j = 0; j < targetFStates.length; ++j) {
 912                 if(initfstates != null) {
 913                     FlagState fs = initfstates.elementAt(j);
 914                     output.println("if(" + generateTempFlagName(fm, temp, lb) + "&(0x" + Integer.toHexString(fs.getAndmask())
 915                             + ")==(0x" + Integer.toHexString(fs.getCheckmask()) + ")) {");
 916                 }
 917                 Vector<FlagState> tmpfstates = (Vector<FlagState>)targetFStates[j];
 918                 for(int i = 0; i < tmpfstates.size(); ++i) {
 919                     FlagState tmpFState = tmpfstates.elementAt(i);
 920                     // TODO
 921                     // may have bugs here
 922                     output.println("/* reside on this core*");
 923                     output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", NULL, 0);");
 924                 }
 925                 if(initfstates != null) {
 926                     output.println("}");
 927                 }
 928             }
 929             return;
 930         }
 931
 932         int num = this.currentSchedule.getCoreNum();
 933         Hashtable<FlagState, Queue<Integer>> targetCoreTbl = this.currentSchedule.getTargetCoreTable();
 934         for(int j = 0; j < targetFStates.length; ++j) {
 935             FlagState fs = null;
 936             if(initfstates != null) {
 937                 fs = initfstates.elementAt(j);
 938                 output.println("if((" + generateTempFlagName(fm, temp, lb) + "&(0x" + Integer.toHexString(fs.getAndmask())
 939                         + "))==(0x" + Integer.toHexString(fs.getCheckmask()) + ")) {");
 940             }
 941             Vector<FlagState> tmpfstates = (Vector<FlagState>)targetFStates[j];
 942             for(int i = 0; i < tmpfstates.size(); ++i) {
 943                 FlagState tmpFState = tmpfstates.elementAt(i);
 944
 945                 if(this.currentSchedule.getAllyCoreTable() == null) {
 946                     isolate = true;
 947                 } else {
 948                     isolate = (this.currentSchedule.getAllyCoreTable().get(tmpFState) == null) ||
 949                                 (this.currentSchedule.getAllyCoreTable().get(tmpFState).size() == 0);
 950                 }
 951                 if(!isolate) {
 952                     // indentify this object as a shared object
 953                     // isolate flag is initially set as 1, once this flag is set as 0, it is never reset to 1, i.e. once an object
 954                     // is shared, it maybe shared all the time afterwards
 955                     output.println("if(" + super.generateTemp(fm, temp, lb) + "->isolate == 1) {");
 956                     output.println("  " + super.generateTemp(fm, temp, lb) + "->isolate = 0;");
 957                     output.println("  " + super.generateTemp(fm, temp, lb) + "->original = (struct ___Object___ *)" + super.generateTemp(fm, temp, lb) + ";");
 958                     output.println("}");
 959                 }
 960
 961                 Vector<Integer> sendto = new Vector<Integer>();
 962                 Queue<Integer> queue = null;
 963                 if(targetCoreTbl != null) {
 964                     queue = targetCoreTbl.get(tmpFState);
 965                 }
 966                 if((queue != null) &&
 967                         ((queue.size() != 1) ||
 968                                 ((queue.size() == 1) && (queue.element().intValue() != num)))) {
 969                     // this object may be transferred to other cores
 970                     String queuename = (String)this.fsate2qnames[num].get(tmpFState);
 971                     String queueins = queuename + "ins";
 972
 973                     Object[] cores = queue.toArray();
 974                     String index = "0";
 975                     Integer targetcore = (Integer)cores[0];
 976                     if(queue.size() > 1) {
 977                         index = queueins + ".index";
 978                     }
 979                     if(queue.size() > 1) {
 980                         output.println("switch(" + queueins + ".index % " + queueins + ".length) {");
 981                         for(int k = 0; k < cores.length; ++k) {
 982                             output.println("case " + k + ":");
 983                             targetcore = (Integer)cores[k];
 984                             if(targetcore.intValue() == num) {
 985                                 output.println("/* reside on this core*/");
 986                                 if(isolate) {
 987                                     output.println("{");
 988                                     QueueInfo qinfo = outputqueues(tmpFState, num, output, true);
 989                                     output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", " + qinfo.qname +
 990                                             ", " + qinfo.length + ");");
 991                                     output.println("}");
 992                                 } else {
 993                                     // TODO
 994                                     // really needed?
 995                                     output.println("/* possibly needed by multi-parameter tasks on this core*/");
 996                                     output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", NULL, 0);");
 997                                 }
 998                             } else {
 999                                 if(!isolate) {
1000                                     // TODO
1001                                     // Is it possible to decide the actual queues?
1002                                     output.println("/* possibly needed by multi-parameter tasks on this core*/");
1003                                     output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", NULL, 0);");
1004                                 }
1005                                 output.println("/* transfer to core " + targetcore.toString() + "*/");
1006                                 output.println("{");
1007                                 // enqueue this object and its destinations for later process
1008                                 // all the possible queues
1009                                 QueueInfo qinfo = null;
1010                                 FlagState targetFS = this.currentSchedule.getTargetFState(tmpFState);
1011                                 if(targetFS != null) {
1012                                     qinfo = outputtransqueues(targetFS, targetcore, output);
1013                                 } else {
1014                                     qinfo = outputtransqueues(tmpFState, targetcore, output);
1015                                 }
1016                                 output.println("tmpObjInfo = RUNMALLOC(sizeof(struct transObjInfo));");
1017                                 output.println("tmpObjInfo->objptr = (void *)" + super.generateTemp(fm, temp, lb) + ";");
1018                                 output.println("tmpObjInfo->targetcore = "+targetcore.toString()+";");
1019                                 output.println("tmpObjInfo->queues = " + qinfo.qname + ";");
1020                                 output.println("tmpObjInfo->length = " + qinfo.length + ";");
1021                                 output.println("addNewItem(totransobjqueue, (void*)tmpObjInfo);");
1022                                 output.println("}");
1023                                 sendto.add(targetcore);
1024                             }
1025                             output.println("break;");
1026                         }
1027                         output.println("}");
1028                     } else {
1029                         if(!isolate) {
1030                             // TODO
1031                             // Is it possible to decide the actual queues?
1032                             output.println("/* possibly needed by multi-parameter tasks on this core*/");
1033                             output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", NULL, 0);");
1034                         }
1035                         output.println("/* transfer to core " + targetcore.toString() + "*/");
1036                         output.println("{");
1037                         // enqueue this object and its destinations for later process
1038                         // all the possible queues
1039                         QueueInfo qinfo = null;
1040                         FlagState targetFS = this.currentSchedule.getTargetFState(tmpFState);
1041                         if(targetFS != null) {
1042                             qinfo = outputtransqueues(targetFS, targetcore, output);
1043                         } else {
1044                             qinfo = outputtransqueues(tmpFState, targetcore, output);
1045                         }
1046                         output.println("tmpObjInfo = RUNMALLOC(sizeof(struct transObjInfo));");
1047                         output.println("tmpObjInfo->objptr = (void *)" + super.generateTemp(fm, temp, lb) + ";");
1048                         output.println("tmpObjInfo->targetcore = "+targetcore.toString()+";");
1049                         output.println("tmpObjInfo->queues = " + qinfo.qname + ";");
1050                         output.println("tmpObjInfo->length = " + qinfo.length + ";");
1051                         output.println("addNewItem(totransobjqueue, (void*)tmpObjInfo);");
1052                         output.println("}");
1053                         sendto.add(targetcore);
1054                     }
1055                     output.println("/* increase index*/");
1056                     output.println("++" + queueins + ".index;");
1057                 } else {
1058                     // this object will reside on current core
1059                     output.println("/* reside on this core*/");
1060                     if(isolate) {
1061                         output.println("{");
1062                         QueueInfo qinfo = outputqueues(tmpFState, num, output, true);
1063                         output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", " + qinfo.qname +
1064                                 ", " + qinfo.length + ");");
1065                         output.println("}");
1066                     } else {
1067                         // TODO
1068                         // really needed?
1069                         output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", NULL, 0);");
1070                     }
1071                 }
1072
1073                 // codes for multi-params tasks
1074                 if(!isolate) {
1075                     // flagstate associated with some multi-params tasks
1076                     // need to be send to other cores
1077                     Vector<Integer> targetcores = this.currentSchedule.getAllyCores(tmpFState);
1078                     output.println("/* send the shared object to possible queues on other cores*/");
1079                     for(int k = 0; k < targetcores.size(); ++k) {
1080                         // TODO
1081                         // add the information of exactly which queue
1082                         if(!sendto.contains(targetcores.elementAt(i))) {
1083                             // previously not sended to this target core
1084                             // enqueue this object and its destinations for later process
1085                             output.println("{");
1086                             // all the possible queues
1087                             QueueInfo qinfo = null;
1088                             FlagState targetFS = this.currentSchedule.getTargetFState(tmpFState);
1089                             if(targetFS != null) {
1090                                 qinfo = outputtransqueues(targetFS, targetcores.elementAt(i), output);
1091                             } else {
1092                                 qinfo = outputtransqueues(tmpFState, targetcores.elementAt(i), output);
1093                             }
1094                             output.println("tmpObjInfo = RUNMALLOC(sizeof(struct transObjInfo));");
1095                             output.println("tmpObjInfo->objptr = (void *)" + super.generateTemp(fm, temp, lb) + ";");
1096                             output.println("tmpObjInfo->targetcore = "+targetcores.elementAt(i).toString()+";");
1097                             output.println("tmpObjInfo->queues = " + qinfo.qname + ";");
1098                             output.println("tmpObjInfo->length = " + qinfo.length + ";");
1099                             output.println("addNewItem(totransobjqueue, (void*)tmpObjInfo);");
1100                             output.println("}");
1101                         }
1102                     }
1103                 }
1104             }
1105
1106             if(initfstates != null) {
1107                 output.println("}");
1108             }
1109         }
1110     }
1111
1112     private QueueInfo outputqueues(FlagState tmpFState, int num, PrintWriter output, boolean isEnqueue) {
1113         // queue array
1114         QueueInfo qinfo = new QueueInfo();
1115         qinfo.qname  = "queues_" + tmpFState.getLabel() + "_" + tmpFState.getiuid();
1116         output.println("struct parameterwrapper * " + qinfo.qname + "[] = {");
1117         Iterator it_edges = tmpFState.getEdgeVector().iterator();
1118         Vector<TaskDescriptor> residetasks = this.currentSchedule.getTasks();
1119         Vector<TaskDescriptor> tasks = new Vector<TaskDescriptor>();
1120         Vector<Integer> indexes = new Vector<Integer>();
1121         boolean comma = false;
1122         qinfo.length = 0;
1123         while(it_edges.hasNext()) {
1124             FEdge fe = (FEdge)it_edges.next();
1125             TaskDescriptor td = fe.getTask();
1126             int paraindex = fe.getIndex();
1127             if((!isEnqueue) || (isEnqueue && residetasks.contains(td))) {
1128                 if((!tasks.contains(td)) ||
1129                         ((tasks.contains(td)) && (paraindex != indexes.elementAt(tasks.indexOf(td)).intValue()))) {
1130                     tasks.addElement(td);
1131                     indexes.addElement(paraindex);
1132                     if(comma) {
1133                         output.println(",");
1134                     } else {
1135                         comma = true;
1136                     }
1137                     output.print("&" + this.objqueueprefix + paraindex + "_" + td.getCoreSafeSymbol(num));
1138                     ++qinfo.length;
1139                 }
1140             }
1141         }
1142         output.println("};");
1143         return qinfo;
1144     }
1145
1146     private QueueInfo outputtransqueues(FlagState tmpFState, int targetcore, PrintWriter output) {
1147         // queue array
1148         QueueInfo qinfo = new QueueInfo();
1149         qinfo.qname  = "queues_" + tmpFState.getLabel() + "_" + tmpFState.getiuid();
1150         output.println("int " + qinfo.qname + "_clone[] = {");
1151         Iterator it_edges = tmpFState.getEdgeVector().iterator();
1152         Vector<TaskDescriptor> residetasks = this.scheduling.get(targetcore).getTasks();
1153         Vector<TaskDescriptor> tasks = new Vector<TaskDescriptor>();
1154         Vector<Integer> indexes = new Vector<Integer>();
1155         boolean comma = false;
1156         qinfo.length = 0;
1157         while(it_edges.hasNext()) {
1158             FEdge fe = (FEdge)it_edges.next();
1159             TaskDescriptor td = fe.getTask();
1160             int paraindex = fe.getIndex();
1161             if(residetasks.contains(td)) {
1162                 if((!tasks.contains(td)) ||
1163                         ((tasks.contains(td)) && (paraindex != indexes.elementAt(tasks.indexOf(td)).intValue()))) {
1164                     tasks.addElement(td);
1165                     indexes.addElement(paraindex);
1166                     if(comma) {
1167                         output.println(",");
1168                     } else {
1169                         comma = true;
1170                     }
1171                     output.print(residetasks.indexOf(td) + ", ");
1172                     output.print(paraindex);
1173                     ++qinfo.length;
1174                 }
1175             }
1176         }
1177         output.println("};");
1178         output.println("int * " + qinfo.qname + " = RUNMALLOC(sizeof(int) * " + qinfo.length * 2 + ");");
1179         output.println("memcpy(" + qinfo.qname + ", (int *)" + qinfo.qname + "_clone, sizeof(int) * " + qinfo.length * 2 + ");");
1180         return qinfo;
1181     }
1182
1183     private class QueueInfo {
1184         public int length;
1185         public String qname;
1186     }
1187
1188     private String generateTempFlagName(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1189         MethodDescriptor md=fm.getMethod();
1190         TaskDescriptor task=fm.getTask();
1191         TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1192
1193         if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1194             return td.getSafeSymbol() + "_oldflag";
1195         }
1196
1197         if (objecttemps.isLocalPtr(td)) {
1198             return localsprefix+"_"+td.getSafeSymbol() + "_oldflag";
1199         }
1200
1201         if (objecttemps.isParamPtr(td)) {
1202             return paramsprefix+"_"+td.getSafeSymbol() + "_oldflag";
1203         }
1204         throw new Error();
1205     }
1206
1207     protected void outputTransCode(PrintWriter output) {
1208         output.println("while(0 == isEmpty(totransobjqueue)) {");
1209         output.println("   struct QueueItem * totransitem = getTail(totransobjqueue);");
1210
1211         output.println("   transferObject((struct transObjInfo *)totransitem->objectptr);");
1212         output.println("   RUNFREE(((struct transObjInfo *)totransitem->objectptr)->queues);");
1213         output.println("   RUNFREE(totransitem->objectptr);");
1214         output.println("   removeItem(totransobjqueue, totransitem);");
1215         output.println("}");
1216         output.println("freeQueue(totransobjqueue);");
1217     }
1218
1219     protected void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
1220         if (frn.getReturnTemp()!=null) {
1221             if (frn.getReturnTemp().getType().isPtr())
1222                 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
1223             else
1224                 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
1225         } else {
1226             if(fm.getTask() != null) {
1227                 //output.println("flushAll();");
1228                 output.println("raw_flush_entire_cache();");
1229                 outputTransCode(output);
1230             }
1231             output.println("return;");
1232         }
1233     }
1234 }