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("#ifdef RAW");
 652                    output.println("raw_user_interrupts_off();");
 653                     output.println("#ifdef RAWDEBUG");
 654                     output.println("raw_test_pass(0xec00);");
 655                     output.println("#endif");
 656                     output.println("raw_flush_entire_cache();");
 657                     output.println("#ifdef RAWDEBUG");
 658                    output.println("raw_test_pass(0xecff);");
 659                     output.println("#endif");
 660                     output.println("raw_user_interrupts_on();");
 661                     output.println("#endif");
 662                     outputTransCode(output);
 663                     output.println("   return;");
 664                 }
 665                 current_node=null;
 666             } else if(current_node.numNext()==1) {
 667                 output.print("   ");
 668                 super.generateFlatNode(fm, lb, current_node, output);
 669                 FlatNode nextnode=current_node.getNext(0);
 670                 if (visited.contains(nextnode)) {
 671                     output.println("goto L"+nodetolabel.get(nextnode)+";");
 672                     current_node=null;
 673                 } else
 674                     current_node=nextnode;
 675             } else if (current_node.numNext()==2) {
 676                 /* Branch */
 677                 output.print("   ");
 678                 super.generateFlatCondBranch(fm, lb, (FlatCondBranch)current_node, "L"+nodetolabel.get(current_node.getNext(1)), output);
 679                 if (!visited.contains(current_node.getNext(1)))
 680                     tovisit.add(current_node.getNext(1));
 681                 if (visited.contains(current_node.getNext(0))) {
 682                     output.println("goto L"+nodetolabel.get(current_node.getNext(0))+";");
 683                     current_node=null;
 684                 } else
 685                     current_node=current_node.getNext(0);
 686             } else throw new Error();
 687         }
 688
 689         output.println("}\n\n");
 690     }
 691
 692     /** This method outputs TaskDescriptor information */
 693     private void generateTaskDescriptor(PrintWriter output, PrintWriter outtask, FlatMethod fm, TaskDescriptor task, Vector[] qnames) {
 694         int num = this.currentSchedule.getCoreNum();
 695
 696         output.println("/* TaskDescriptor information for task " + task.getSymbol() + " on core " + num + "*/");
 697
 698         for (int i=0;i<task.numParameters();i++) {
 699             VarDescriptor param_var=task.getParameter(i);
 700             TypeDescriptor param_type=task.getParamType(i);
 701             FlagExpressionNode param_flag=task.getFlag(param_var);
 702             TagExpressionList param_tag=task.getTag(param_var);
 703
 704             int dnfterms;
 705             if (param_flag==null) {
 706                 output.println("int parameterdnf_"+i+"_"+task.getCoreSafeSymbol(num)+"[]={");
 707                 output.println("0x0, 0x0 };");
 708                 dnfterms=1;
 709             } else {
 710                 DNFFlag dflag=param_flag.getDNF();
 711                 dnfterms=dflag.size();
 712
 713                 Hashtable flags=(Hashtable)flagorder.get(param_type.getClassDesc());
 714                 output.println("int parameterdnf_"+i+"_"+task.getCoreSafeSymbol(num)+"[]={");
 715                 for(int j=0;j<dflag.size();j++) {
 716                     if (j!=0)
 717                         output.println(",");
 718                     Vector term=dflag.get(j);
 719                     int andmask=0;
 720                     int checkmask=0;
 721                     for(int k=0;k<term.size();k++) {
 722                         DNFFlagAtom dfa=(DNFFlagAtom)term.get(k);
 723                         FlagDescriptor fd=dfa.getFlag();
 724                         boolean negated=dfa.getNegated();
 725                         int flagid=1<<((Integer)flags.get(fd)).intValue();
 726                         andmask|=flagid;
 727                         if (!negated)
 728                             checkmask|=flagid;
 729                     }
 730                     output.print("0x"+Integer.toHexString(andmask)+", 0x"+Integer.toHexString(checkmask));
 731                 }
 732                 output.println("};");
 733             }
 734
 735             output.println("int parametertag_"+i+"_"+task.getCoreSafeSymbol(num)+"[]={");
 736             //BUG...added next line to fix, test with any task program
 737             if (param_tag!=null)
 738                 for(int j=0;j<param_tag.numTags();j++) {
 739                     if (j!=0)
 740                         output.println(",");
 741                     /* for each tag we need */
 742                     /* which slot it is */
 743                     /* what type it is */
 744                     TagVarDescriptor tvd=(TagVarDescriptor)task.getParameterTable().get(param_tag.getName(j));
 745                     TempDescriptor tmp=param_tag.getTemp(j);
 746                     int slot=fm.getTagInt(tmp);
 747                     output.println(slot+", "+state.getTagId(tvd.getTag()));
 748                 }
 749             output.println("};");
 750
 751             // generate object queue for this parameter
 752             String qname = this.objqueueprefix+i+"_"+task.getCoreSafeSymbol(num);
 753             if(param_type.getClassDesc().getSymbol().equals("StartupObject")) {
 754                 this.startupcorenum = num;
 755             }
 756             if(qnames[param_type.getClassDesc().getId()] == null) {
 757                 qnames[param_type.getClassDesc().getId()] = new Vector();
 758             }
 759             qnames[param_type.getClassDesc().getId()].addElement(qname);
 760             outtask.println("extern struct parameterwrapper " + qname + ";");
 761             output.println("struct parameterwrapper " + qname + "={");
 762             output.println(".objectset = 0,"); // objectset
 763             output.println("/* number of DNF terms */ .numberofterms = "+dnfterms+","); // numberofterms
 764             output.println(".intarray = parameterdnf_"+i+"_"+task.getCoreSafeSymbol(num)+","); // intarray
 765             // numbertags
 766             if (param_tag!=null)
 767                 output.println("/* number of tags */ .numbertags = "+param_tag.numTags()+",");
 768             else
 769                 output.println("/* number of tags */ .numbertags = 0,");
 770             output.println(".tagarray = parametertag_"+i+"_"+task.getCoreSafeSymbol(num)+","); // tagarray
 771             output.println(".task = 0,"); // task
 772             output.println(".slot = " + i + ",");// slot
 773             // iterators
 774             output.println("};");
 775
 776             output.println("struct parameterdescriptor parameter_"+i+"_"+task.getCoreSafeSymbol(num)+"={");
 777             output.println("/* type */"+param_type.getClassDesc().getId()+",");
 778             output.println("/* number of DNF terms */"+dnfterms+",");
 779             output.println("parameterdnf_"+i+"_"+task.getCoreSafeSymbol(num)+","); // intarray
 780             output.println("&" + qname + ","); // queue
 781             //BUG, added next line to fix and else statement...test
 782             //with any task program
 783             if (param_tag!=null)
 784                 output.println("/* number of tags */"+param_tag.numTags()+",");
 785             else
 786                 output.println("/* number of tags */ 0,");
 787             output.println("parametertag_"+i+"_"+task.getCoreSafeSymbol(num)); // tagarray
 788             output.println("};");
 789         }
 790
 791         /* parameter queues for this task*/
 792         output.println("struct parameterwrapper * " + this.paramqarrayprefix + task.getCoreSafeSymbol(num)+"[] = {");
 793         for (int i=0;i<task.numParameters();i++) {
 794             if (i!=0)
 795                 output.println(",");
 796             output.print("&" + this.objqueueprefix + i + "_" + task.getCoreSafeSymbol(num));
 797         }
 798         output.println("};");
 799
 800         output.println("struct parameterdescriptor * parameterdescriptors_"+task.getCoreSafeSymbol(num)+"[] = {");
 801         for (int i=0;i<task.numParameters();i++) {
 802             if (i!=0)
 803                 output.println(",");
 804             output.print("&parameter_"+i+"_"+task.getCoreSafeSymbol(num));
 805         }
 806         output.println("};");
 807
 808         output.println("struct taskdescriptor " + this.taskprefix + task.getCoreSafeSymbol(num) + "={");
 809         output.println("&"+task.getCoreSafeSymbol(num)+",");
 810         output.println("/* number of parameters */" +task.numParameters() + ",");
 811         int numtotal=task.numParameters()+fm.numTags();
 812         output.println("/* number total parameters */" +numtotal + ",");
 813         output.println("parameterdescriptors_"+task.getCoreSafeSymbol(num)+",");
 814         output.println("\""+task.getSymbol()+"\"");
 815         output.println("};");
 816
 817         output.println();
 818     }
 819
 820     /** This method generates header information for the task
 821      *  referenced by the Descriptor des. */
 822
 823     private void generateTaskHeader(FlatMethod fm, LocalityBinding lb, Descriptor des, PrintWriter output) {
 824         /* Print header */
 825         ParamsObject objectparams=(ParamsObject)paramstable.get(lb!=null?lb:des);
 826         TaskDescriptor task=(TaskDescriptor) des;
 827
 828         int num = this.currentSchedule.getCoreNum();
 829         //catch the constructor case
 830         output.print("void ");
 831         output.print(task.getCoreSafeSymbol(num)+"(");
 832
 833         boolean printcomma=false;
 834         if (GENERATEPRECISEGC) {
 835             output.print("struct "+task.getCoreSafeSymbol(num)+"_params * "+paramsprefix);
 836             printcomma=true;
 837         }
 838
 839         /*if (state.DSM&&lb.isAtomic()) {
 840             if (printcomma)
 841                 output.print(", ");
 842             output.print("transrecord_t * trans");
 843             printcomma=true;
 844         }*/
 845
 846         if (!GENERATEPRECISEGC) {
 847             /* Imprecise Task */
 848             output.println("void * parameterarray[]) {");
 849             /* Unpack variables */
 850             for(int i=0;i<objectparams.numPrimitives();i++) {
 851                 TempDescriptor temp=objectparams.getPrimitive(i);
 852                 output.println("struct "+temp.getType().getSafeSymbol()+" * "+temp.getSafeSymbol()+"=parameterarray["+i+"];");
 853             }
 854             for(int i=0;i<fm.numTags();i++) {
 855                 TempDescriptor temp=fm.getTag(i);
 856                 int offset=i+objectparams.numPrimitives();
 857                 output.println("struct ___TagDescriptor___ * "+temp.getSafeSymbol()+i+"___=parameterarray["+offset+"];");// add i to fix bugs of duplicate definition of tags
 858             }
 859
 860             if ((objectparams.numPrimitives()+fm.numTags())>maxtaskparams)
 861                 maxtaskparams=objectparams.numPrimitives()+fm.numTags();
 862         } else output.println(") {");
 863     }
 864
 865     protected void generateFlagOrAnd(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp,
 866             PrintWriter output, int ormask, int andmask) {
 867         if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
 868             output.println("flagorandinit("+super.generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+", 0x"+Integer.toHexString(andmask)+");");
 869         } else {
 870             int num = this.currentSchedule.getCoreNum();
 871             ClassDescriptor cd = temp.getType().getClassDesc();
 872             Vector<FlagState> initfstates = ffan.getInitFStates(cd);
 873             for(int i = 0; i < initfstates.size(); ++i) {
 874                 FlagState tmpFState = initfstates.elementAt(i);
 875                 output.println("{");
 876                 QueueInfo qinfo = outputqueues(tmpFState, num, output, false);
 877                 output.println("flagorand("+super.generateTemp(fm, temp, lb)+", 0x"+Integer.toHexString(ormask)+
 878                                ", 0x"+Integer.toHexString(andmask)+", " + qinfo.qname +
 879                                ", " + qinfo.length + ");");
 880                 output.println("}");
 881             }
 882         }
 883     }
 884
 885     protected void generateObjectDistribute(FlatFlagActionNode ffan, FlatMethod fm, LocalityBinding lb, TempDescriptor temp,
 886                                             PrintWriter output) {
 887         ClassDescriptor cd = temp.getType().getClassDesc();
 888         Vector<FlagState> initfstates = null;
 889         Vector[] targetFStates = null;
 890         if (ffan.getTaskType()==FlatFlagActionNode.NEWOBJECT) {
 891             targetFStates = new Vector[1];
 892             targetFStates[0] = ffan.getTargetFStates4NewObj(cd);
 893         } else {
 894             initfstates = ffan.getInitFStates(cd);
 895             targetFStates = new Vector[initfstates.size()];
 896             for(int i = 0; i < initfstates.size(); ++i) {
 897                 FlagState fs = initfstates.elementAt(i);
 898                 targetFStates[i] = ffan.getTargetFStates(fs);
 899
 900                 if(!fs.isSetmask()) {
 901                     Hashtable flags=(Hashtable)flagorder.get(cd);
 902                     int andmask=0;
 903                     int checkmask=0;
 904                     Iterator it_flags = fs.getFlags();
 905                     while(it_flags.hasNext()) {
 906                         FlagDescriptor fd = (FlagDescriptor)it_flags.next();
 907                         int flagid=1<<((Integer)flags.get(fd)).intValue();
 908                         andmask|=flagid;
 909                         checkmask|=flagid;
 910                     }
 911                     fs.setAndmask(andmask);
 912                     fs.setCheckmask(checkmask);
 913                     fs.setSetmask(true);
 914                 }
 915             }
 916         }
 917         boolean isolate = true; // check if this flagstate can associate to some task with multiple params which can
 918                                 // reside on multiple cores
 919         if((this.currentSchedule == null) && (fm.getMethod().getClassDesc().getSymbol().equals("ServerSocket"))) {
 920             // ServerSocket object will always reside on current core
 921             for(int j = 0; j < targetFStates.length; ++j) {
 922                 if(initfstates != null) {
 923                     FlagState fs = initfstates.elementAt(j);
 924                     output.println("if(" + generateTempFlagName(fm, temp, lb) + "&(0x" + Integer.toHexString(fs.getAndmask())
 925                             + ")==(0x" + Integer.toHexString(fs.getCheckmask()) + ")) {");
 926                 }
 927                 Vector<FlagState> tmpfstates = (Vector<FlagState>)targetFStates[j];
 928                 for(int i = 0; i < tmpfstates.size(); ++i) {
 929                     FlagState tmpFState = tmpfstates.elementAt(i);
 930                     // TODO
 931                     // may have bugs here
 932                     output.println("/* reside on this core*");
 933                     output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", NULL, 0);");
 934                 }
 935                 if(initfstates != null) {
 936                     output.println("}");
 937                 }
 938             }
 939             return;
 940         }
 941
 942         int num = this.currentSchedule.getCoreNum();
 943         Hashtable<FlagState, Queue<Integer>> targetCoreTbl = this.currentSchedule.getTargetCoreTable();
 944         for(int j = 0; j < targetFStates.length; ++j) {
 945             FlagState fs = null;
 946             if(initfstates != null) {
 947                 fs = initfstates.elementAt(j);
 948                 output.println("if((" + generateTempFlagName(fm, temp, lb) + "&(0x" + Integer.toHexString(fs.getAndmask())
 949                         + "))==(0x" + Integer.toHexString(fs.getCheckmask()) + ")) {");
 950             }
 951             Vector<FlagState> tmpfstates = (Vector<FlagState>)targetFStates[j];
 952             for(int i = 0; i < tmpfstates.size(); ++i) {
 953                 FlagState tmpFState = tmpfstates.elementAt(i);
 954
 955                 if(this.currentSchedule.getAllyCoreTable() == null) {
 956                     isolate = true;
 957                 } else {
 958                     isolate = (this.currentSchedule.getAllyCoreTable().get(tmpFState) == null) ||
 959                                 (this.currentSchedule.getAllyCoreTable().get(tmpFState).size() == 0);
 960                 }
 961                 if(!isolate) {
 962                     // indentify this object as a shared object
 963                     // 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
 964                     // is shared, it maybe shared all the time afterwards
 965                     output.println("if(" + super.generateTemp(fm, temp, lb) + "->isolate == 1) {");
 966                     output.println("  " + super.generateTemp(fm, temp, lb) + "->isolate = 0;");
 967                     output.println("  " + super.generateTemp(fm, temp, lb) + "->original = (struct ___Object___ *)" + super.generateTemp(fm, temp, lb) + ";");
 968                     output.println("}");
 969                 }
 970
 971                 Vector<Integer> sendto = new Vector<Integer>();
 972                 Queue<Integer> queue = null;
 973                 if(targetCoreTbl != null) {
 974                     queue = targetCoreTbl.get(tmpFState);
 975                 }
 976                 if((queue != null) &&
 977                         ((queue.size() != 1) ||
 978                                 ((queue.size() == 1) && (queue.element().intValue() != num)))) {
 979                     // this object may be transferred to other cores
 980                     String queuename = (String)this.fsate2qnames[num].get(tmpFState);
 981                     String queueins = queuename + "ins";
 982
 983                     Object[] cores = queue.toArray();
 984                     String index = "0";
 985                     Integer targetcore = (Integer)cores[0];
 986                     if(queue.size() > 1) {
 987                         index = queueins + ".index";
 988                     }
 989                     if(queue.size() > 1) {
 990                         output.println("switch(" + queueins + ".index % " + queueins + ".length) {");
 991                         for(int k = 0; k < cores.length; ++k) {
 992                             output.println("case " + k + ":");
 993                             targetcore = (Integer)cores[k];
 994                             if(targetcore.intValue() == num) {
 995                                 output.println("/* reside on this core*/");
 996                                 if(isolate) {
 997                                     output.println("{");
 998                                     QueueInfo qinfo = outputqueues(tmpFState, num, output, true);
 999                                     output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", " + qinfo.qname +
1000                                             ", " + qinfo.length + ");");
1001                                     output.println("}");
1002                                 } else {
1003                                     // TODO
1004                                     // really needed?
1005                                     output.println("/* possibly needed by multi-parameter tasks on this core*/");
1006                                     output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", NULL, 0);");
1007                                 }
1008                             } else {
1009                                 if(!isolate) {
1010                                     // TODO
1011                                     // Is it possible to decide the actual queues?
1012                                     output.println("/* possibly needed by multi-parameter tasks on this core*/");
1013                                     output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", NULL, 0);");
1014                                 }
1015                                 output.println("/* transfer to core " + targetcore.toString() + "*/");
1016                                 output.println("{");
1017                                 // enqueue this object and its destinations for later process
1018                                 // all the possible queues
1019                                 QueueInfo qinfo = null;
1020                                 FlagState targetFS = this.currentSchedule.getTargetFState(tmpFState);
1021                                 if(targetFS != null) {
1022                                     qinfo = outputtransqueues(targetFS, targetcore, output);
1023                                 } else {
1024                                     qinfo = outputtransqueues(tmpFState, targetcore, output);
1025                                 }
1026                                 output.println("tmpObjInfo = RUNMALLOC(sizeof(struct transObjInfo));");
1027                                 output.println("tmpObjInfo->objptr = (void *)" + super.generateTemp(fm, temp, lb) + ";");
1028                                 output.println("tmpObjInfo->targetcore = "+targetcore.toString()+";");
1029                                 output.println("tmpObjInfo->queues = " + qinfo.qname + ";");
1030                                 output.println("tmpObjInfo->length = " + qinfo.length + ";");
1031                                 output.println("addNewItem(totransobjqueue, (void*)tmpObjInfo);");
1032                                 output.println("}");
1033                                 sendto.add(targetcore);
1034                             }
1035                             output.println("break;");
1036                         }
1037                         output.println("}");
1038                     } else {
1039                         if(!isolate) {
1040                             // TODO
1041                             // Is it possible to decide the actual queues?
1042                             output.println("/* possibly needed by multi-parameter tasks on this core*/");
1043                             output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", NULL, 0);");
1044                         }
1045                         output.println("/* transfer to core " + targetcore.toString() + "*/");
1046                         output.println("{");
1047                         // enqueue this object and its destinations for later process
1048                         // all the possible queues
1049                         QueueInfo qinfo = null;
1050                         FlagState targetFS = this.currentSchedule.getTargetFState(tmpFState);
1051                         if(targetFS != null) {
1052                             qinfo = outputtransqueues(targetFS, targetcore, output);
1053                         } else {
1054                             qinfo = outputtransqueues(tmpFState, targetcore, output);
1055                         }
1056                         output.println("tmpObjInfo = RUNMALLOC(sizeof(struct transObjInfo));");
1057                         output.println("tmpObjInfo->objptr = (void *)" + super.generateTemp(fm, temp, lb) + ";");
1058                         output.println("tmpObjInfo->targetcore = "+targetcore.toString()+";");
1059                         output.println("tmpObjInfo->queues = " + qinfo.qname + ";");
1060                         output.println("tmpObjInfo->length = " + qinfo.length + ";");
1061                         output.println("addNewItem(totransobjqueue, (void*)tmpObjInfo);");
1062                         output.println("}");
1063                         sendto.add(targetcore);
1064                     }
1065                     output.println("/* increase index*/");
1066                     output.println("++" + queueins + ".index;");
1067                 } else {
1068                     // this object will reside on current core
1069                     output.println("/* reside on this core*/");
1070                     if(isolate) {
1071                         output.println("{");
1072                         QueueInfo qinfo = outputqueues(tmpFState, num, output, true);
1073                         output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", " + qinfo.qname +
1074                                 ", " + qinfo.length + ");");
1075                         output.println("}");
1076                     } else {
1077                         // TODO
1078                         // really needed?
1079                         output.println("enqueueObject("+super.generateTemp(fm, temp, lb)+", NULL, 0);");
1080                     }
1081                 }
1082
1083                 // codes for multi-params tasks
1084                 if(!isolate) {
1085                     // flagstate associated with some multi-params tasks
1086                     // need to be send to other cores
1087                     Vector<Integer> targetcores = this.currentSchedule.getAllyCores(tmpFState);
1088                     output.println("/* send the shared object to possible queues on other cores*/");
1089                     for(int k = 0; k < targetcores.size(); ++k) {
1090                         // TODO
1091                         // add the information of exactly which queue
1092                         if(!sendto.contains(targetcores.elementAt(i))) {
1093                             // previously not sended to this target core
1094                             // enqueue this object and its destinations for later process
1095                             output.println("{");
1096                             // all the possible queues
1097                             QueueInfo qinfo = null;
1098                             FlagState targetFS = this.currentSchedule.getTargetFState(tmpFState);
1099                             if(targetFS != null) {
1100                                 qinfo = outputtransqueues(targetFS, targetcores.elementAt(i), output);
1101                             } else {
1102                                 qinfo = outputtransqueues(tmpFState, targetcores.elementAt(i), output);
1103                             }
1104                             output.println("tmpObjInfo = RUNMALLOC(sizeof(struct transObjInfo));");
1105                             output.println("tmpObjInfo->objptr = (void *)" + super.generateTemp(fm, temp, lb) + ";");
1106                             output.println("tmpObjInfo->targetcore = "+targetcores.elementAt(i).toString()+";");
1107                             output.println("tmpObjInfo->queues = " + qinfo.qname + ";");
1108                             output.println("tmpObjInfo->length = " + qinfo.length + ";");
1109                             output.println("addNewItem(totransobjqueue, (void*)tmpObjInfo);");
1110                             output.println("}");
1111                         }
1112                     }
1113                 }
1114             }
1115
1116             if(initfstates != null) {
1117                 output.println("}");
1118             }
1119         }
1120     }
1121
1122     private QueueInfo outputqueues(FlagState tmpFState, int num, PrintWriter output, boolean isEnqueue) {
1123         // queue array
1124         QueueInfo qinfo = new QueueInfo();
1125         qinfo.qname  = "queues_" + tmpFState.getLabel() + "_" + tmpFState.getiuid();
1126         output.println("struct parameterwrapper * " + qinfo.qname + "[] = {");
1127         Iterator it_edges = tmpFState.getEdgeVector().iterator();
1128         Vector<TaskDescriptor> residetasks = this.currentSchedule.getTasks();
1129         Vector<TaskDescriptor> tasks = new Vector<TaskDescriptor>();
1130         Vector<Integer> indexes = new Vector<Integer>();
1131         boolean comma = false;
1132         qinfo.length = 0;
1133         while(it_edges.hasNext()) {
1134             FEdge fe = (FEdge)it_edges.next();
1135             TaskDescriptor td = fe.getTask();
1136             int paraindex = fe.getIndex();
1137             if((!isEnqueue) || (isEnqueue && residetasks.contains(td))) {
1138                 if((!tasks.contains(td)) ||
1139                         ((tasks.contains(td)) && (paraindex != indexes.elementAt(tasks.indexOf(td)).intValue()))) {
1140                     tasks.addElement(td);
1141                     indexes.addElement(paraindex);
1142                     if(comma) {
1143                         output.println(",");
1144                     } else {
1145                         comma = true;
1146                     }
1147                     output.print("&" + this.objqueueprefix + paraindex + "_" + td.getCoreSafeSymbol(num));
1148                     ++qinfo.length;
1149                 }
1150             }
1151         }
1152         output.println("};");
1153         return qinfo;
1154     }
1155
1156     private QueueInfo outputtransqueues(FlagState tmpFState, int targetcore, PrintWriter output) {
1157         // queue array
1158         QueueInfo qinfo = new QueueInfo();
1159         qinfo.qname  = "queues_" + tmpFState.getLabel() + "_" + tmpFState.getiuid();
1160         output.println("int " + qinfo.qname + "_clone[] = {");
1161         Iterator it_edges = tmpFState.getEdgeVector().iterator();
1162         Vector<TaskDescriptor> residetasks = this.scheduling.get(targetcore).getTasks();
1163         Vector<TaskDescriptor> tasks = new Vector<TaskDescriptor>();
1164         Vector<Integer> indexes = new Vector<Integer>();
1165         boolean comma = false;
1166         qinfo.length = 0;
1167         while(it_edges.hasNext()) {
1168             FEdge fe = (FEdge)it_edges.next();
1169             TaskDescriptor td = fe.getTask();
1170             int paraindex = fe.getIndex();
1171             if(residetasks.contains(td)) {
1172                 if((!tasks.contains(td)) ||
1173                         ((tasks.contains(td)) && (paraindex != indexes.elementAt(tasks.indexOf(td)).intValue()))) {
1174                     tasks.addElement(td);
1175                     indexes.addElement(paraindex);
1176                     if(comma) {
1177                         output.println(",");
1178                     } else {
1179                         comma = true;
1180                     }
1181                     output.print(residetasks.indexOf(td) + ", ");
1182                     output.print(paraindex);
1183                     ++qinfo.length;
1184                 }
1185             }
1186         }
1187         output.println("};");
1188         output.println("int * " + qinfo.qname + " = RUNMALLOC(sizeof(int) * " + qinfo.length * 2 + ");");
1189         output.println("memcpy(" + qinfo.qname + ", (int *)" + qinfo.qname + "_clone, sizeof(int) * " + qinfo.length * 2 + ");");
1190         return qinfo;
1191     }
1192
1193     private class QueueInfo {
1194         public int length;
1195         public String qname;
1196     }
1197
1198     private String generateTempFlagName(FlatMethod fm, TempDescriptor td, LocalityBinding lb) {
1199         MethodDescriptor md=fm.getMethod();
1200         TaskDescriptor task=fm.getTask();
1201         TempObject objecttemps=(TempObject) tempstable.get(lb!=null?lb:md!=null?md:task);
1202
1203         if (objecttemps.isLocalPrim(td)||objecttemps.isParamPrim(td)) {
1204             return td.getSafeSymbol() + "_oldflag";
1205         }
1206
1207         if (objecttemps.isLocalPtr(td)) {
1208             return localsprefix+"_"+td.getSafeSymbol() + "_oldflag";
1209         }
1210
1211         if (objecttemps.isParamPtr(td)) {
1212             return paramsprefix+"_"+td.getSafeSymbol() + "_oldflag";
1213         }
1214         throw new Error();
1215     }
1216
1217     protected void outputTransCode(PrintWriter output) {
1218         output.println("while(0 == isEmpty(totransobjqueue)) {");
1219         output.println("   struct QueueItem * totransitem = getTail(totransobjqueue);");
1220
1221         output.println("   transferObject((struct transObjInfo *)totransitem->objectptr);");
1222         output.println("   RUNFREE(((struct transObjInfo *)totransitem->objectptr)->queues);");
1223         output.println("   RUNFREE(totransitem->objectptr);");
1224         output.println("   removeItem(totransobjqueue, totransitem);");
1225         output.println("}");
1226         output.println("freeQueue(totransobjqueue);");
1227     }
1228
1229     protected void generateFlatReturnNode(FlatMethod fm, LocalityBinding lb, FlatReturnNode frn, PrintWriter output) {
1230         if (frn.getReturnTemp()!=null) {
1231             if (frn.getReturnTemp().getType().isPtr())
1232                 output.println("return (struct "+fm.getMethod().getReturnType().getSafeSymbol()+"*)"+generateTemp(fm, frn.getReturnTemp(), lb)+";");
1233             else
1234                 output.println("return "+generateTemp(fm, frn.getReturnTemp(), lb)+";");
1235         } else {
1236             if(fm.getTask() != null) {
1237                 //output.println("flushAll();");
1238                 output.println("#ifdef RAW");
1239                 output.println("raw_user_interrupts_off();");
1240                 output.println("#ifdef RAWDEBUG");
1241                 output.println("raw_test_pass(0xec00);");
1242                 output.println("#endif");
1243                 output.println("raw_flush_entire_cache();");
1244                 output.println("#ifdef RAWDEBUG");
1245                 output.println("raw_test_pass(0xecff);");
1246                 output.println("#endif");
1247                 output.println("raw_user_interrupts_on();");
1248                 output.println("#endif");
1249                 outputTransCode(output);
1250             }
1251             output.println("return;");
1252         }
1253     }
1254 }