net.sourceforge.phpeclipse.debug.core/src/net/sourceforge/phpdt/internal/debug/core/PHPDBGInterface.java

   1 /**********************************************************************
   2 Copyright (c) 2000, 2002 IBM Corp. and others.
   3 All rights reserved. This program and the accompanying materials
   4 are made available under the terms of the Common Public License v1.0
   5 which accompanies this distribution, and is available at
   6 http://www.eclipse.org/legal/cpl-v10.html
   7
   8 Contributors:
   9         Vicente Fernando - www.alfersoft.com.ar - Initial implementation
  10         Christian Perkonig - remote debug
  11 **********************************************************************/
  12 package net.sourceforge.phpdt.internal.debug.core;
  13
  14 import java.io.BufferedReader;
  15 import java.io.IOException;
  16 import java.io.OutputStream;
  17 import java.util.Collections;
  18 import java.util.Vector;
  19
  20 import net.sourceforge.phpdt.internal.debug.core.model.PHPDBGEvalString;
  21 import net.sourceforge.phpdt.internal.debug.core.model.PHPStackFrame;
  22 import net.sourceforge.phpdt.internal.debug.core.model.PHPValue;
  23 import net.sourceforge.phpdt.internal.debug.core.model.PHPVariable;
  24
  25 import org.eclipse.core.runtime.IStatus;
  26 import org.eclipse.core.runtime.Status;
  27 import org.eclipse.debug.core.DebugException;
  28
  29 /**
  30  * The interface object are created by the proxy
  31  *
  32  */
  33 public class PHPDBGInterface {
  34         public boolean                  sessionEnded = false;
  35         public int                              sessType = -1;
  36         public int                              BPUnderHit = 0;
  37         public String                           sessID = new String();
  38
  39         private int[]                           LastBPRead = new int[10];
  40         private Vector                  DBGBPList = new Vector();
  41         private Vector                  DBGVarList = new Vector();
  42         private PHPStackFrame[]         DBGStackList = new PHPStackFrame[0];
  43         private Vector                  DBGMods = new Vector();                         // The module names and their numbers
  44         private Vector                  stackListOld = new Vector();
  45         private BufferedReader  in;
  46         private OutputStream            os;                                                             // The stream which goes to DBG
  47         private boolean                         shouldStop = false;
  48         private String                  evalRet = new String("");
  49         private int                             rawCounter = 1000;                                      // An rawData frame ID counter
  50         private PHPDBGProxy             proxy = null;
  51         private int                             lastCmd = -1;
  52         private int                             sid = 0;
  53         private boolean                         stopOnError = false;
  54         private char[]                  lastCommand = new char[4];
  55
  56         private static final String GlobalVariablesTitle = PHPDebugCorePlugin
  57                         .getResourceString("VariablesView.GlobalVariables.title");
  58
  59         /**
  60          * @param in    The input stream (communication from DBG).
  61          * @param os    The output stream (communication to DBG).
  62          * @param proxy The proxy to which this interface belongs.
  63          */
  64         public PHPDBGInterface (BufferedReader in, OutputStream os, PHPDBGProxy proxy) {
  65                 DBGBPList.clear ();
  66
  67                 this.in         = in;
  68                 this.os         = os;
  69                 this.proxy      = proxy;
  70         }
  71
  72         /**
  73          *
  74          * @param mod_name  The module (source file) to which we add the breakpoint.
  75          * @param line      The line where the breakpoint is set.
  76          * @param hitCount  The number of hit counts before suspend.
  77          * @param condition The break condition
  78          * @return          Breakpoint ID ???.
  79          */
  80         public int addBreakpoint (String mod_name, int line, int hitCount, String condition) throws IOException {
  81                 return setBreakpoint (mod_name, condition, line, PHPDBGBase.BPS_ENABLED + PHPDBGBase.BPS_UNRESOLVED, 0, hitCount, 0, 0, 0);
  82         }
  83
  84         /**
  85          *
  86          * @param mod_name The module (source file) to which we add the breakpoint.
  87          * @param line     The line where the breakpoint is set.
  88          * @param bpNo     The breakpoint ID ???.
  89          */
  90         public void removeBreakpoint (String mod_name, int line, int bpNo) throws IOException {
  91                 setBreakpoint (mod_name, "", line, PHPDBGBase.BPS_DISABLED, 0, 0, 0, bpNo, 0);
  92         }
  93
  94         /**
  95          * Is this method used anywhere?
  96          *
  97          */
  98         public void requestDBGVersion () throws IOException {
  99                 PHPDBGPacket DBGPacket;                                     // A DBG message packet
 100                 PHPDBGFrame  DBGFrame;                                      // A frame within a DBG packet
 101
 102                 DBGPacket = new PHPDBGPacket (PHPDBGBase.DBGA_REQUEST);     // A request for DBG
 103                 DBGFrame  = new PHPDBGFrame (PHPDBGBase.FRAME_VER);         // We want the version of DBG
 104
 105                 DBGPacket.addFrame (DBGFrame);                              // Add the 'what we want' to the DBG packet
 106
 107                 if (proxy.getSocket ().isClosed ()) {                                           // Can we communiate with DBG?
 108                         return;                                                 //  No
 109                 }
 110
 111                 DBGPacket.sendPacket (os);                                                                      // Send the request to DBG
 112         }
 113
 114         /**
 115          * Called by the proxy
 116          *
 117          */
 118         public void getSourceTree () throws IOException {
 119                 PHPDBGPacket DBGPacket;                                     // A DBG message packet
 120                 PHPDBGFrame  DBGFrame;                                      // A frame within a DBG packet
 121
 122                 DBGPacket = new PHPDBGPacket (PHPDBGBase.DBGA_REQUEST);     // A request for DBG
 123                 DBGFrame  = new PHPDBGFrame (PHPDBGBase.FRAME_SRC_TREE);        // We want a source tree from DBG
 124
 125                 DBGPacket.addFrame (DBGFrame);                              // Add the 'what we want' to the DBG packet
 126
 127                 if (proxy.getSocket ().isClosed ()) {                                           // Can we communiate with DBG?
 128                         return;                                                                                                 //  No
 129                 }
 130
 131                 DBGPacket.sendPacket (os);                                  // Send the request to DBG
 132
 133                 waitResponse (1000);                                        // Wait for the DBG response (1 second)
 134                 flushAllPackets ();                                                                             // Read and process the response from DBG
 135         }
 136
 137         /**
 138          * Is this method called from anywhere?
 139          *
 140          * @param modName The modul (filename).
 141          */
 142         public void addDBGModName (String modName) throws IOException {
 143                 PHPDBGPacket DBGPacket;                                     // A DBG message packet
 144                 PHPDBGFrame  DBGFrame;                                      // A frame within a DBG packet
 145
 146                 DBGPacket = new PHPDBGPacket (PHPDBGBase.DBGA_REQUEST);     // A request for DBG
 147                 DBGFrame  = new PHPDBGFrame (PHPDBGBase.FRAME_RAWDATA);     // We want Module name from DBG
 148
 149                 rawCounter++;                                               // Increment the rawData ID counter
 150                 DBGFrame.addInt (rawCounter);                                                           // FRAME_RAWDATA ID
 151                 DBGFrame.addInt (modName.length () + 1);                                        // The length of rawdata string (incl. null char termination)
 152                 DBGFrame.addString (modName);                                                           // The file name (module name)
 153                 DBGFrame.addChar ('\0');                                                                        // Add the C-String null termination
 154
 155                 DBGPacket.addFrame (DBGFrame);
 156
 157                 if (proxy.getSocket ().isClosed ()) {                                           // Can we communiate with DBG?
 158                         return;                                                                                                 //  No
 159                 }
 160
 161                 DBGPacket.sendPacket (os);
 162         }
 163
 164         /**
 165          * This method is called for adding or removing breakpoints.
 166          *
 167          * @param mod_name      The module name (file name).
 168          * @param condition     Info about the condition when to break (not used at the moment).
 169          * @param line          The breakpoints line.
 170          * @param state         Info whether this breakpoint has to be dis- or enabled.
 171          * @param istep         Always 0.
 172          * @param hitcount      Always 0.
 173          * @param skiphits      Always 0.
 174          * @param bpno          The breakpoint ID.
 175          * @param isunderhit    ???
 176          * @return
 177          */
 178         private int setBreakpoint (String mod_name, String condition, int line, int state, int istemp, int hitcount, int skiphits, int bpno, int isunderhit) throws IOException {
 179                 PHPDBGPacket    DBGPacket;
 180                 PHPDBGFrame     DBGFrame1;
 181                 PHPDBGFrame     DBGFrame2;
 182                 PHPDBGFrame             DBGFrame3;
 183                 int                     modNo;
 184
 185                 DBGPacket       = new PHPDBGPacket (PHPDBGBase.DBGA_REQUEST);
 186                 DBGFrame1       = new PHPDBGFrame (PHPDBGBase.FRAME_BPS);
 187                 DBGFrame2       = new PHPDBGFrame (PHPDBGBase.FRAME_RAWDATA);
 188                 DBGFrame3       = new PHPDBGFrame (PHPDBGBase.FRAME_RAWDATA);
 189
 190                 modNo           = getModByName (mod_name);                                              // Get the module ID by name
 191
 192                 if (modNo >= 0) {                                           // Did we find a module ID for the module name?
 193                         DBGFrame1.addInt (modNo);                                                               // Add the module ID to frame 1
 194                 } else {
 195                         DBGFrame1.addInt (0);                                                                   // mod number (0 use file name)
 196                 }
 197
 198                 DBGFrame1.addInt (line);                                                                        // line number
 199
 200                 if (modNo >= 0) {                                           // Did we find a module ID for the module name?
 201                         DBGFrame1.addInt (0);                                                                   // use mod number
 202                 } else {
 203                         rawCounter++;
 204                         DBGFrame1.addInt (rawCounter);                                                  // ID of FRAME_RAWDATA to send file name
 205                 }
 206
 207                 if (modNo < 0) {                                            // Did we find a module ID for the module name?
 208                         DBGFrame2.addInt (rawCounter);                                      // FRAME_RAWDATA ID
 209                         DBGFrame2.addInt (mod_name.length() + 1);                   // length of rawdata (+ null char)
 210                         DBGFrame2.addString (mod_name);                                     // file name
 211                         DBGFrame2.addChar ('\0');                                                   // null char
 212
 213                         DBGPacket.addFrame (DBGFrame2);                         // First add file name data
 214                 }
 215
 216                 DBGFrame1.addInt (state);                                       // state BPS_*
 217                 DBGFrame1.addInt (istemp);                                      // istemp
 218                 DBGFrame1.addInt (0);                                               // hit count; this is not supported as one might think
 219                 DBGFrame1.addInt (hitcount);                                // skip hits is what we think is hit count.
 220
 221                 if (!condition.equals ("")) {                                                           // Do we have a condition for breakpoint
 222                         rawCounter++;                                                                                   // Set to new ID
 223                         DBGFrame1.addInt (rawCounter);                          // ID of condition
 224
 225                         DBGFrame3.addInt (rawCounter);                                      // FRAME_RAWDATA ID
 226                         DBGFrame3.addInt (condition.length() + 1);                  // length of rawdata (+ null char)
 227                         DBGFrame3.addString (condition);                                        // The break condition
 228                         DBGFrame3.addChar ('\0');                                                   // null char
 229
 230                         DBGPacket.addFrame (DBGFrame3);                         // First add break condition
 231                 }
 232                 else {
 233                         DBGFrame1.addInt (0);                                           // ID of condition is 0, because there is no condition
 234                 }
 235
 236                 DBGFrame1.addInt (bpno);                                            // breakpoint number
 237                 DBGFrame1.addInt (isunderhit);                                  // is under hit
 238
 239                 DBGPacket.addFrame (DBGFrame1);                                                         // Second add command data
 240
 241                 if (proxy.getSocket ().isClosed ()) {                                           // Can we communiate with DBG?
 242                         return 0;                                               //  No
 243                 }
 244
 245                 DBGPacket.sendPacket (os);                                  // Send the request to DBG
 246
 247                 clearLastBP ();
 248
 249                 waitResponse (1000);                                        // Wait for the DBG response (1 second)
 250                 flushAllPackets ();                                         // Read and process the response from DBG
 251
 252                 return LastBPRead[8];                                                                           // Return what ???
 253         }
 254
 255         /**
 256          *
 257          */
 258         private void clearLastBP () {
 259                 int i;
 260
 261                 for (i = 0; i < LastBPRead.length; i++) {
 262                         LastBPRead[i] = 0;
 263                 }
 264         }
 265
 266         /**
 267          *
 268          */
 269         private void copyToLastBP (int[] BPBody) {
 270                 int i;
 271
 272                 for (i = 0; i < LastBPRead.length; i++) {
 273                         LastBPRead[i] = BPBody[i];
 274                 }
 275         }
 276
 277         /**
 278          *
 279          */
 280         public void continueExecution () throws IOException {
 281                 PHPDBGPacket DBGPacket;
 282
 283                 BPUnderHit = 0;
 284                 DBGPacket  = new PHPDBGPacket (PHPDBGBase.DBGA_CONTINUE);
 285
 286                 if (proxy.getSocket ().isClosed ()) {                                           // Can we communiate with DBG?
 287                         return;                                                 //  No
 288                 }
 289
 290                 DBGPacket.sendPacket (os);                                  // Send the request to DBG
 291
 292                 lastCommand = PHPDBGBase.DBGA_CONTINUE;                     // Store the info about the command we sent
 293         }
 294
 295         /**
 296          *
 297          */
 298         public void pauseExecution () throws IOException {
 299                 PHPDBGPacket DBGPacket;
 300
 301                 DBGPacket = new PHPDBGPacket (PHPDBGBase.IntToChar4 (PHPDBGBase.DBGC_PAUSE));
 302
 303                 if (proxy.getSocket ().isClosed ()) {                                           // Can we communiate with DBG?
 304                          return;                                                //  No
 305                 }
 306
 307                 DBGPacket.sendPacket (os);                                  // Send the request to DBG
 308         }
 309
 310         /**
 311          *
 312          */
 313         private int getBPUnderHit () {
 314                 int i;
 315                 int BPUnder             = 0;
 316                 int[] dbg_bpl_body      = new int[10];
 317
 318                 for (i = 0; i < DBGBPList.size (); i++) {                               // look for bp under hit
 319                         dbg_bpl_body = (int[]) DBGBPList.get (i);
 320
 321                         if (dbg_bpl_body[9] == 1) {
 322                                 BPUnder = dbg_bpl_body[8];
 323                         }
 324                 }
 325
 326                 return BPUnder;
 327         }
 328
 329         public int getLastCmd()
 330         {
 331                 return lastCmd;
 332         }
 333
 334         public int getSID()
 335         {
 336           return sid;
 337         }
 338
 339         public void setLastCmd (int cmd)
 340         {
 341                 lastCmd = cmd;
 342         }
 343
 344         /**
 345          *
 346          */
 347         public void stepInto () throws IOException {
 348                 PHPDBGPacket DBGPacket;
 349
 350                 BPUnderHit = 0;
 351                 DBGPacket  = new PHPDBGPacket (PHPDBGBase.DBGA_STEPINTO);
 352
 353                 if (proxy.getSocket ().isClosed ()) {                                           // Can we communiate with DBG?
 354                         return;                                                 //  No
 355                 }
 356
 357                 DBGPacket.sendPacket (os);                                  // Send the request to DBG
 358
 359                 lastCommand = PHPDBGBase.DBGA_STEPINTO;                                         // Store the info about the command we sent
 360         }
 361
 362         /**
 363          *
 364          */
 365         public void stepOver () throws IOException {
 366                 PHPDBGPacket DBGPacket;
 367
 368                 BPUnderHit = 0;
 369                 DBGPacket  = new PHPDBGPacket (PHPDBGBase.DBGA_STEPOVER);
 370
 371                 if (proxy.getSocket ().isClosed ()) {                                           // Can we communiate with DBG?
 372                         return;                                                 //  No
 373                 }
 374
 375                 DBGPacket.sendPacket (os);                                  // Send the request to DBG
 376
 377                 lastCommand = PHPDBGBase.DBGA_STEPOVER;                     // Store the info about the command we sent
 378         }
 379
 380         /**
 381          *
 382          */
 383         public void stepOut () throws IOException {
 384                 PHPDBGPacket DBGPacket;
 385
 386                 BPUnderHit = 0;
 387                 DBGPacket  = new PHPDBGPacket (PHPDBGBase.DBGA_STEPOUT);
 388
 389                 if (proxy.getSocket ().isClosed ()) {                                           // Can we communiate with DBG?
 390                         return;                                                 //  No
 391                 }
 392
 393                 DBGPacket.sendPacket (os);                                  // Send the request to DBG
 394
 395                 lastCommand = PHPDBGBase.DBGA_STEPOUT;                      // Store the info about the command we sent
 396         }
 397
 398         /**
 399          *
 400          */
 401         public void stopExecution () throws IOException {
 402                 PHPDBGPacket DBGPacket;
 403
 404                 BPUnderHit = 0;
 405                 DBGPacket  = new PHPDBGPacket (PHPDBGBase.DBGA_STOP);
 406
 407                 if (proxy.getSocket ().isClosed ()) {                                           // Can we communiate with DBG?
 408                         return;                                                 //  No
 409                 }
 410
 411                 DBGPacket.sendPacket (os);                                  // Send the request to DBG
 412         }
 413
 414         /**
 415          * This method is called by the proxy.
 416          * It sends a request to DBG to get the current variables
 417          * with their values. It waits for the response and processes
 418          * the input from DBG.
 419          *
 420          * @param stack The stackframe for which we want the variables.
 421          * @return      The array of variables
 422          */
 423         public synchronized Vector getVariables(PHPStackFrame stack) throws IOException, DebugException {
 424                 PHPDBGPacket            DBGPacket;
 425                 PHPDBGFrame             DBGFrame1;
 426                 PHPDBGEvalString        evalStr;
 427
 428                 // get global variables (and assign them to 'main()' stackframe)
 429                 Vector globalList = new Vector();
 430                 globalList = getVariables(DBGStackList[DBGStackList.length - 1], PHPDBGBase.GLOBAL_SCOPE_ID);
 431                 if (!globalList.isEmpty()) {
 432                         // remove unexpected '$this=?' variable
 433                         PHPVariable var = (PHPVariable) globalList.get(0);
 434                         PHPValue val = (PHPValue) var.getValue();
 435                         Vector workList = val.getChildVariables();
 436                         for (int i = 0; i < workList.size(); i++) {
 437                                 if (((PHPVariable) workList.get(i)).getName().equals("$this")) {
 438                                         workList.remove(i);
 439                                         break;
 440                                 }
 441                         }
 442                         var.setName(GlobalVariablesTitle);
 443                         var.setModifiable(false);
 444                 }
 445
 446                 int scopeID = stack.getScopeID();
 447                 if (!globalList.isEmpty()
 448                                 && ((DBGStackList.length == 1)
 449                                                 || (scopeID == PHPDBGBase.CURLOC_SCOPE_ID + 1))) {
 450                         // 'main()' stackframe
 451                         PHPVariable var = (PHPVariable) globalList.get(0);
 452                         PHPValue val = (PHPValue) var.getValue();
 453                         DBGVarList = val.getChildVariables();
 454                         return DBGVarList;
 455
 456                 } else if (scopeID == PHPDBGBase.CURLOC_SCOPE_ID) {
 457                         // current stackframe
 458                         DBGVarList = getVariables(stack, PHPDBGBase.CURLOC_SCOPE_ID);
 459
 460                 } else {
 461                         // back-trace stackframe
 462                         DBGVarList = getVariables(stack, scopeID);
 463                         // DBG 2.15.5 causes Application Error (on win32) in some cases
 464                         //DBGVarList.clear();
 465                 }
 466
 467                 if (DBGVarList.size() > 0) {                                                            // Did we get back variables?
 468                         PHPVariable var = (PHPVariable) DBGVarList.get(0);              // Yes, then get the first PHPVariable
 469                         PHPValue    val = (PHPValue) var.getValue();                    // Get the value
 470
 471                         if (var.getName().equals("")) {                                                 // Is the root node an empty node (usually it is)
 472                                 DBGVarList = val.getChildVariables();                           // Then remove the empty node.
 473                                                                                                                                         // With removing the empty root node, it wouldn't be necessary to
 474                                                                                                                                         // set the name to an empty string. So the code below is just for
 475                                                                                                                                         // info or in case the users want to have the empty root node.
 476
 477                                                                                                                                         // The eclipse variable view cannot handle Variables which have an empty name
 478                                                                                                                                         // when it comes to variable tree restore operation. Without a name, no restore!
 479                                 //var.setName (" ");                                                            // Give a name to the variable root node. Even if it is only a space :-)
 480                         }                                                                                                               // TODO the best would be to remove the empty root node, but this would
 481                                                                                                                                         // require a understanding and reworking of the PHPDBGEvalstring class.
 482                 }
 483
 484                 if (!globalList.isEmpty()) {
 485                         DBGVarList.add(globalList.get(0));
 486                 }
 487
 488                 return DBGVarList;                                                                                      // Return the variables as list
 489         }
 490
 491         /**
 492          *
 493          * @throws IOException
 494          */
 495         private Vector getVariables(PHPStackFrame stack, int scope_id) throws IOException {
 496                 PHPDBGPacket DBGPacket = new PHPDBGPacket(PHPDBGBase.DBGA_REQUEST);
 497                 PHPDBGFrame DBGFrame1 = new PHPDBGFrame(PHPDBGBase.FRAME_EVAL);
 498
 499                 DBGFrame1.addInt(0);
 500                 DBGFrame1.addInt(scope_id);
 501
 502                 DBGPacket.addFrame(DBGFrame1);
 503                 evalRet = "";
 504
 505                 if (proxy.getSocket().isClosed()) {
 506                         return new Vector();
 507                 }
 508                 DBGPacket.sendPacket(os);
 509                 waitResponse(1000);
 510                 flushAllPackets();
 511
 512                 PHPDBGEvalString evalStr = new PHPDBGEvalString(stack, evalRet);
 513                 return evalStr.getVariables();
 514         }
 515
 516         /**
 517          *
 518          * @param logString
 519          */
 520         public void log(String logString) throws IOException, DebugException  {
 521                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_REQUEST);
 522                 PHPDBGFrame DBGFrame1= new PHPDBGFrame(PHPDBGBase.FRAME_LOG);
 523                 PHPDBGFrame DBGFrame2= new PHPDBGFrame(PHPDBGBase.FRAME_RAWDATA);
 524
 525                 rawCounter++;
 526                 DBGFrame1.addInt(rawCounter);                           // ilog
 527                 DBGFrame1.addInt(1);                                            // type
 528                 DBGFrame1.addInt(0);                                            // mod_no
 529                 DBGFrame1.addInt(0);                                            // line_no
 530                 DBGFrame1.addInt(0);                                            // imod_name
 531                 DBGFrame1.addInt(0);                                            // ext_info
 532
 533                 DBGFrame2.addInt(rawCounter);                           // FRAME_RAWDATA ID
 534                 DBGFrame2.addInt(logString.length() + 1);       // length of rawdata (+ null char)
 535                 DBGFrame2.addString(logString);                         // log string
 536                 DBGFrame2.addChar('\0');                                        // null char
 537
 538                 // Add raw data first
 539                 DBGPacket.addFrame(DBGFrame2);
 540                 // Add command data
 541                 DBGPacket.addFrame(DBGFrame1);
 542
 543                 if (proxy.getSocket ().isClosed ()) {                   // Do we have a socket for DBG communication?
 544                         return;                                                                                         //  No, then leave here
 545                 }
 546
 547                 DBGPacket.sendPacket(os);
 548
 549                 waitResponse(1000);
 550                 flushAllPackets();
 551         }
 552
 553         public synchronized PHPVariable[] evalBlock(PHPStackFrame stack, String evalString) throws IOException, DebugException {
 554                 PHPDBGPacket DBGPacket= new PHPDBGPacket(PHPDBGBase.DBGA_REQUEST);
 555                 PHPDBGFrame DBGFrame1= new PHPDBGFrame(PHPDBGBase.FRAME_EVAL);
 556                 PHPDBGFrame DBGFrame2= new PHPDBGFrame(PHPDBGBase.FRAME_RAWDATA);
 557
 558                 rawCounter++;
 559                 DBGFrame1.addInt(rawCounter);                           // istr = raw data ID
 560                 //DBGFrame1.addInt(1);                                          // scope_id = -1 means current location, 0 never used, +1 first depth
 561                 int scope_id = stack.getScopeID();
 562                 if (DBGStackList.length == 1 || scope_id == PHPDBGBase.CURLOC_SCOPE_ID + 1) {
 563                         scope_id = PHPDBGBase.GLOBAL_SCOPE_ID;
 564                 } //-
 565                 DBGFrame1.addInt(scope_id);
 566
 567                 DBGFrame2.addInt(rawCounter);                           // FRAME_RAWDATA ID
 568                 DBGFrame2.addInt(evalString.length() + 1);      // length of rawdata (+ null char)
 569                 DBGFrame2.addString(evalString);                        // eval block
 570                 DBGFrame2.addChar('\0');                                        // null char
 571
 572                 // Add raw data first
 573                 DBGPacket.addFrame(DBGFrame2);
 574                 // Add command data
 575                 DBGPacket.addFrame(DBGFrame1);
 576
 577                 if (proxy.getSocket().isClosed()) {                     // Do we have a socket for DBG communication?
 578                         return null;                                                    //  No, then leave here
 579                 }
 580                 DBGPacket.sendPacket(os);
 581
 582                 waitResponse(1000);
 583                 flushAllPackets();
 584
 585                 PHPDBGEvalString evalStr=new PHPDBGEvalString(stack,evalRet);
 586
 587                 return evalStr.getVars();
 588         }
 589
 590         /**
 591          * Read and process everthing we got from DBG
 592          */
 593         public void flushAllPackets () throws IOException {
 594                 while (readResponse() != 0);
 595         }
 596
 597         /**
 598          * Get the modules name by its number
 599          *
 600          * @param modNo The number (id) of the module
 601          * @return      The name of the module
 602          */
 603         public String getModByNo (int modNo) {
 604                 int             i;
 605                 PHPDBGMod       dbg_mod;
 606
 607                 for (i = 0; i < DBGMods.size (); i++) {                         // For all the modules we have within the array
 608                         dbg_mod = (PHPDBGMod) DBGMods.get (i);                      // Get the module
 609
 610                         if (dbg_mod.getNo () == modNo) {                            // Is the module from the array the module we want?
 611                                 return dbg_mod.getName ();                              //  Yes, return the name of the module
 612                         }
 613                 }
 614
 615                 return "";                                                      // If nothing was found return emtpy string
 616         }
 617
 618         /**
 619          *
 620          * @param  modName The name of the module for which we want the ID
 621          * @return
 622          * - The ID of the module
 623          * - -1 if nothing was found
 624          */
 625         private int getModByName (String modName) {
 626                 int             i;
 627                 PHPDBGMod       dbg_mod;
 628
 629                 for (i = 0; i < DBGMods.size (); i++) {                         // For all the modules we have within the array
 630                         dbg_mod = (PHPDBGMod) DBGMods.get (i);                      // Get the module
 631
 632                         if (dbg_mod.getName ().equalsIgnoreCase (modName)) {            // Is the module from the array the module we want?
 633                                 return dbg_mod.getNo ();                                //  Yes, return the name of the module
 634                         }
 635                 }
 636
 637                 return -1;                                                      // If nothing was found return -1
 638         }
 639
 640         /**
 641          * Return the string for the given frame number
 642          *
 643          * @param framesInfo The buffer which is to read
 644          * @param frameNo    The frame number
 645          * @return
 646          */
 647         private String getRawFrameData (char[] framesInfo, int frameNo) {
 648                 int   nextFrame = 0;                                                    // The current read position within the buffer
 649                 int[] dbg_frame = new int[2];                                           // The two frame header numbers
 650
 651                 while (nextFrame < framesInfo.length) {                                 // As long we have something within the buffer
 652                         dbg_frame[0] = PHPDBGBase.Char4ToInt (framesInfo, nextFrame);           // The frame type
 653                         dbg_frame[1] = PHPDBGBase.Char4ToInt (framesInfo, nextFrame + 4);       // The frame size
 654
 655                         nextFrame   += 8;                                                   // The current read position
 656
 657                         if (dbg_frame[1] == 0) {                                            // If frame size is 0
 658                                 return "";                                                      //  return an emtpy string
 659                         }
 660
 661                         switch (dbg_frame[0]) {                                                     // Switch for the frame type
 662                                 case PHPDBGBase.FRAME_RAWDATA:                                                  // The only frame type we are interrested in
 663                                         if (frameNo == PHPDBGBase.Char4ToInt (framesInfo, nextFrame)) {         // Is it correct  number of the frame
 664                                                 int toRead;                                                     //
 665
 666                                                 toRead = PHPDBGBase.Char4ToInt (framesInfo, nextFrame + 4);     // The size of the string
 667
 668                                                 if ((int) framesInfo[nextFrame + 8 + toRead - 1] == 0) {                                // Is there a string termination at the end?
 669                                                         return String.copyValueOf (framesInfo, nextFrame + 8, toRead - 1);      // Then copy frame content to String without the \0 and return
 670                                                 }
 671
 672                                                 return String.copyValueOf (framesInfo, nextFrame + 8, toRead);  // Copy frame content to String and return
 673                                         }
 674                                         break;
 675                         }
 676
 677                         nextFrame += dbg_frame[1];                                                                      // Go for the next frame (add the length of the current one)
 678                 }
 679
 680                 return "";                                                                                                                                              // We did not found any FRAM_RAWDATA, so return an emtpy strin
 681         }
 682
 683         /**
 684          * Reset the availability flag for all stackframes in the list.
 685          *
 686          * @param list          The list of old stackframes
 687          */
 688         private void resetAvailability (Vector list) {
 689                 int             i;
 690
 691                 for (i = 0; i < list.size (); i++) {
 692                         ((PHPStackFrame) list.get(i)).setAvailable (false);                                     //
 693                 }
 694         }
 695
 696         /**
 697          * Check whether the new stackframe is in the list of old stackframes.
 698          * Test for identical stackframe (identical means same description and same line number).
 699          *
 700          * @param stackFrameNew The stackframe to check whether he is already within the old stackframe list
 701          * @param list          The list of old stackframes
 702          * @return
 703          *  - true if we have found the identical stackframe within the list
 704          *  - false if we did not find the identical stackframe within the list
 705          */
 706         private boolean isStackFrameInList (PHPStackFrame stackFrameNew, Vector list) {
 707                 int             i;
 708                 PHPStackFrame   stackFrameOld;
 709
 710                 for (i = 0; i < list.size (); i++) {
 711                         stackFrameOld = (PHPStackFrame) list.get (i);                                           //
 712
 713                         if (stackFrameNew.getDescription ().equals (stackFrameOld.getDescription ()) &&
 714                                 stackFrameNew.getLineNumber () == stackFrameOld.getLineNumber ()) {     // Did we find the sent stackframe within the list of old stackframes?
 715                                 stackFrameOld.setAvailable (true);                                      // We found the new stackframe in the list of old stack frames
 716                 stackFrameOld.setIndex (stackFrameNew.getIndex ());
 717                 stackFrameOld.setScopeID(stackFrameNew.getScopeID());
 718                                 return true;                                                            // The stackframe was found in the list
 719                         }
 720                 }
 721
 722                 return false;
 723         }
 724
 725         /**
 726          * Check whether the new stackframe is in the list of old stackframes.
 727          * Test for exact stackframe (exact means same description and same line number).
 728          *
 729          * @param stackFrameNew The stackframe to check whether he is already within the old stackframe list
 730          * @param list          The list of old stackframes
 731          * @return
 732          *  - true if we have exactly this stackframe within the list
 733          *  - false if we did not find the exact stackframe within the list
 734          */
 735         private void markIdenticalStackFrames (Vector oldList, Vector newList) {
 736                 int             i;
 737                 PHPStackFrame   stackFrameNew;
 738
 739                 resetAvailability (oldList);                                                    // Reset the availability flag of the old stack frames
 740                 resetAvailability (newList);                                                    // Reset the availability flag of the old stack frames
 741
 742                 for (i = 0; i < newList.size (); i++) {                                                                                 // For all stackList entries
 743                         stackFrameNew = (PHPStackFrame) newList.get (i);
 744
 745                         if (isStackFrameInList (stackFrameNew, oldList)) {                          // Is this stackframe in the list
 746                                 stackFrameNew.setAvailable (true);                                                                              //
 747                                                                                                                                                                                 //
 748                                 break;
 749                         }
 750                 }
 751         }
 752
 753         /**
 754          *
 755          * The stackList contains the currently read stackframes which were sent
 756          * from DBG. The DBG interface holds a list of the active stack frames.
 757          * This method replicates the 'static' stackframe list with the DBG stackframe list
 758          * Replication is done in the following way:
 759          * <ul>
 760          * <li> It looks for new stackframes within the DBG stackframe list and
 761          *      adds them to the 'static' list.
 762          * <li> It looks for stackframes within the 'static' list, and removes them
 763          *              from the 'static' list in case they do not appear within the DBG list.
 764          * <li> It looks for stackframes which are already existent and replicates the
 765          *              line number and the index number.
 766          * <li> At the end, the 'static' stackframe list has to be sorted by the stackframes
 767          *              index numbers.
 768          * </ul>
 769          *
 770          * Removes the unused stackframes from the list, or adds stackframes which
 771          * are not yet in the list.
 772          *
 773          *
 774          * @param stackList
 775          */
 776         private void updateStackFrameList (Vector stackList) {
 777                 int                     i;
 778                 int             n;
 779                 PHPStackFrame   stackFrameNew;
 780                 PHPStackFrame   stackFrameOld;
 781                 PHPStackFrame[] newStackList;
 782
 783                 markIdenticalStackFrames (stackListOld, stackList);                     // Check whether the newly send stack frames can be found in the list
 784                                                                                                                                                                 // of old stack frames
 785
 786                 for (i = 0; i < stackList.size (); i++) {                                                               // For all stackList entries
 787                         stackFrameNew = (PHPStackFrame) stackList.get(i);
 788
 789                         for (n = 0; n < stackListOld.size (); n++) {                                    // For all StackFrames in the StackFrame list
 790                                 stackFrameOld = (PHPStackFrame) stackListOld.get (n);                   //
 791
 792                                 if (stackFrameOld.isAvailable ()) {                             // If this stack frame was already found in the new list skip it
 793                                         continue;
 794                                 }
 795
 796                                 if (stackFrameNew.getDescription ().equals (stackFrameOld.getDescription ())) {// Did we find the sent stackframe within the list of old stackframes?
 797                                         stackFrameOld.setLineNumber (stackFrameNew.getLineNumber ());
 798                                         stackFrameOld.setIndex (stackFrameNew.getIndex ());
 799                                         stackFrameOld.setScopeID(stackFrameNew.getScopeID());
 800
 801                                         stackFrameOld.setAvailable (true);                                                      // And mark this stack frame as available
 802                                         stackFrameNew.setAvailable (true);                                                      // And mark this stack frame as available
 803
 804                                         break;                                                                  //  Yes, then break;
 805                                 }
 806                         }
 807
 808                         if (!stackFrameNew.isAvailable ()) {                                // Did not find the new stackframe within the list?
 809                                  stackFrameNew.setAvailable (true);                                                             // Mark the stack frame as available and
 810                                  stackListOld.add (stackFrameNew);                              //  then add the new stackframe
 811                         }
 812                 }
 813
 814                 // And now for removing unused stackframes from list
 815
 816                 for (n = 0; n < stackListOld.size (); n++) {                                            // For all StackFrames in the StackFrame list
 817                         stackFrameOld = (PHPStackFrame) stackListOld.get (n);                           //
 818
 819                         i = 0;
 820                         if (!stackFrameOld.isAvailable ()) {
 821                                 i = stackList.size ();
 822                         }
 823
 824                         if (i == stackList.size ()) {                                           // Did not find the old stackframe within the list of new ones
 825                                  stackListOld.remove (n);                                       //  then remove the old stackframe from list
 826                                  n -= 1;                                                        // Adjust the stack list index
 827                         }
 828                 }
 829
 830                 Collections.sort (stackListOld);                                                                                // Sort the 'static' stackframe list by the stackframe index numbers.
 831                                                                                                                                                                 //
 832                 newStackList = new PHPStackFrame[stackListOld.size ()];
 833                 newStackList = (PHPStackFrame[]) stackListOld.toArray (newStackList);
 834                 DBGStackList = newStackList;
 835         }
 836
 837     /**
 838      * Read the response from DBG and process the frame
 839      *
 840          * @return
 841          * - The received command
 842          * - or 0 if something was wrong
 843      */
 844         public int readResponse () throws IOException {
 845         int     bytesToRead            = 0;                         // The number of byte to read for the current DBG block
 846         int     nextFrame              = 0;                         // The current read position within entirePack
 847         int     i                      = 0;
 848         int     cmdReceived            = 0;
 849         int     stackIndex             = 0;
 850         boolean errorStack             = false;
 851         char[]  dbg_header_struct_read = new char[16];              // The buffer for the first 16 bytes of a block
 852         int[]   dbg_header_struct      = new int[4];                // The first four numbers (long) of a block
 853         int[]   dbg_bpl_tmp            = new int[10];
 854         int[]   dbg_frame              = new int[2];
 855         int[]   dbg_eval_tmp           = new int[3];
 856         int[]   dbg_src_tree_tmp       = new int[4];                //
 857         int[]   dbg_error_tmp          = new int[2];
 858         Vector  rawList                = new Vector();
 859         Vector  stackList              = new Vector();              // Intermediate stacklist which is build up in FRAME_STACK frame
 860
 861         rawList.clear ();
 862         stackList.clear ();
 863
 864                 // Read from input
 865         while (readInput (dbg_header_struct_read, 16) != 0) {                               // Read 16 byte from input stream
 866                         dbg_header_struct[0] = PHPDBGBase.Char4ToInt (dbg_header_struct_read, 0);               // Debug sync header
 867             dbg_header_struct[1] = PHPDBGBase.Char4ToInt (dbg_header_struct_read, 4);           // Command
 868             dbg_header_struct[2] = PHPDBGBase.Char4ToInt (dbg_header_struct_read, 8);       //
 869             dbg_header_struct[3] = PHPDBGBase.Char4ToInt (dbg_header_struct_read, 12);      // Bytes within this block
 870
 871             if (dbg_header_struct[0] != 0x5953) {                                           // Check DBG sync bytes
 872                 return 0;                                                                   // Wrong header
 873             }
 874
 875             cmdReceived = dbg_header_struct[1];                                             // Get the command
 876             setLastCmd (cmdReceived);                                                                                                           // Store the info about the current command
 877             bytesToRead = dbg_header_struct[3];                                                                                         // Get the number of bytes to read for this block
 878
 879                         //System.out.println("Response Received: " + cmdReceived);
 880                         char[] entirePack = new char[bytesToRead];                                      // Store the block data into buffer 'entirePack'
 881
 882             if (bytesToRead > 0) {                                                          // If there is something within the frame
 883                 if (readInput (entirePack, bytesToRead) < bytesToRead) {                    // Read the frame into the buffer
 884                     return 0;                                                               // We did not read enough bytes, error
 885                 }
 886                         }
 887
 888                         nextFrame = 0;                                                                  // Start with the first frame
 889
 890                         while (nextFrame < bytesToRead) {                                               // As long as we have something within this block
 891                                 dbg_frame[0] = PHPDBGBase.Char4ToInt (entirePack, nextFrame);                           // The name of the frame
 892                                 dbg_frame[1] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 4);               // The size of the frame
 893                                 nextFrame   += 8;                                                           // The next read position
 894
 895                                 if (dbg_frame[1] == 0) {                                                    // Something within the frame?
 896                                         return 0;                                                               //  Nothing to read, error
 897                                 }
 898
 899                                 switch (dbg_frame[0]) {
 900                                         case PHPDBGBase.FRAME_STACK:
 901                                                 int[] dbg_stack_new = new int[4];                                       //
 902
 903                                                 dbg_stack_new[0] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 0);   // Source line number
 904                                                 dbg_stack_new[1] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 4);   // Module number
 905                                                 dbg_stack_new[2] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 8);   // Scope id
 906                                                 dbg_stack_new[3] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 12);  // ID of description string
 907
 908                                                 if ((dbg_stack_new[1] != 0) && !errorStack) {
 909                                                         PHPStackFrame newStack;
 910
 911                                                         stackIndex++;
 912                                                         newStack = new PHPStackFrame (null,                                 // The thread
 913                                                                                       getModByNo (dbg_stack_new[1]),        // The name of the module (file)
 914                                                                                       dbg_stack_new[0],                     // The source line number
 915                                                                                                                   stackIndex,
 916                                                                                                                   getRawFrameData (entirePack,          // Get the string from this packet
 917                                                                                                                                    dbg_stack_new[3]),   // The frame ID for which we want the string
 918                                                                                                                   dbg_stack_new[1],                                     // The module number
 919                                                                                                                   dbg_stack_new[2]);
 920                                                         stackList.add (newStack);
 921                                                 }
 922
 923                                                 errorStack = false;
 924                                                 break;
 925
 926                                         case PHPDBGBase.FRAME_SOURCE:                                                   // Nothing to be done here
 927                                                 break;                                                                      // TODO: what's with that frame? Something interesting
 928
 929                                         case PHPDBGBase.FRAME_SRC_TREE:                                                 //
 930                                                 dbg_src_tree_tmp[0] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 0);        // The parent module number
 931                                                 dbg_src_tree_tmp[1] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 4);        // The parent line number (not used)
 932                                                 dbg_src_tree_tmp[2] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 8);        // The module number
 933                                                 dbg_src_tree_tmp[3] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 12);       // The filename number
 934
 935                                                 if (getModByNo (dbg_src_tree_tmp[2]).equals ("")) {
 936                                                         String fileName;
 937
 938                                                         fileName = new String (getRawFrameData (entirePack, dbg_src_tree_tmp[3]));      // Get the filename
 939
 940                                                         if (dbg_src_tree_tmp[2] != 0) {                                             // If there is a module number
 941                                                                 PHPDBGMod modNew;
 942
 943                                                                 modNew = new PHPDBGMod (dbg_src_tree_tmp[2], fileName);                 // Create a module object
 944
 945                                                                 DBGMods.add (modNew);                                                   // And store it to array
 946                                                         }
 947                                                 }
 948                                                 break;
 949
 950                                         case PHPDBGBase.FRAME_RAWDATA:                                                      // Nothing to be done here
 951                                                 break;                                                                          //  FRAME_RAWDATA are processed within getRawFrameData
 952
 953                                         case PHPDBGBase.FRAME_ERROR:                                                                                                            // An error frame
 954                                                 errorStack       = true;                                                                                                                // Yes, we have an error stack
 955                                                 dbg_error_tmp[0] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 0);                   // Error type
 956                                                 dbg_error_tmp[1] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 4);                   // Error message ID
 957
 958                                                 String error = "\n";                                                            //
 959
 960                                                 switch (dbg_error_tmp[0]) {                                                                                                             // Switch on error type
 961                                                         case PHPDBGBase.E_ERROR:                        error += "[Error]";                     break;
 962                                                         case PHPDBGBase.E_WARNING:                      error += "[Warning]";                   break;
 963                                                         case PHPDBGBase.E_PARSE:                        error += "[Parse Error]";               break;
 964                                                         case PHPDBGBase.E_NOTICE:                       error += "[Notice]";                    break;
 965                                                         case PHPDBGBase.E_CORE_ERROR:           error += "[Core Error]";                break;
 966                                                         case PHPDBGBase.E_CORE_WARNING:         error += "[Core Warning]";              break;
 967                                                         case PHPDBGBase.E_COMPILE_ERROR:        error += "[Compile Error]";             break;
 968                                                         case PHPDBGBase.E_COMPILE_WARNING:      error += "[Compile Warning]";   break;
 969                                                         case PHPDBGBase.E_USER_ERROR:           error += "[User Error]";                break;
 970                                                         case PHPDBGBase.E_USER_WARNING:         error += "[User Warning]";              break;
 971                                                         case PHPDBGBase.E_USER_NOTICE:          error += "[User Notice]";               break;
 972                                                         default:                                                        error += "[Unexpected Error]";  break;
 973                                                 }
 974
 975                                                 error += ": ";
 976                                                 error += new String (getRawFrameData (entirePack, dbg_error_tmp[1]));                   // Add the error string for this error message ID
 977                                                 error += "\n";                                                                  // Append a CR
 978
 979                                                 PHPDebugCorePlugin.log (new DebugException (new Status (IStatus.WARNING,
 980                                                                                                         PHPDebugCorePlugin.PLUGIN_ID,
 981                                                                                                                                                                 IStatus.OK,
 982                                                                                                                                                                 error, null)));
 983
 984                                                 // To print errors on the console, I must execute a code in the
 985                                                 // php context, that write the stderr... I didn't found a better way
 986                                                 // TODO: Find a better way????
 987
 988 //                                              String codeExec= "";
 989 //                                              codeExec= "fwrite(fopen('php://stderr', 'w'),\\\"" + error + "\\\");";
 990 //                                              try {
 991 //                                                      evalBlock("eval(\"" + codeExec + "\");");
 992 //                                              } catch (DebugException e) {
 993 //                                                      PHPDebugCorePlugin.log(e);
 994 //                                              }
 995 //
 996                                                 if (!stopOnError) {                                                             // Is always false (Did not see where this is set to true!?)
 997                                                         if (lastCommand.equals (PHPDBGBase.DBGA_CONTINUE)) {                        // If last command for PHP was a 'continue',
 998                                                                 continueExecution ();                                                   //  send continue again
 999                                                         } else if (lastCommand.equals (PHPDBGBase.DBGA_STEPINTO)) {                 // If last command for PHP was a 'step into',
1000                                                                 stepInto ();                                                            //  send 'step into' again
1001                                                         } else if (lastCommand.equals (PHPDBGBase.DBGA_STEPOUT)) {                  // If last command for PHP was a 'step out',
1002                                                                 stepOut ();                                                             //  send 'step out' again
1003                                                         } else if (lastCommand.equals (PHPDBGBase.DBGA_STEPOVER)) {                 // If last command for PHP was a 'step over',
1004                                                                 stepOver ();                                                            //  send 'step over' again
1005                                                         }
1006                                                 }
1007                                                 break;
1008
1009                                         case PHPDBGBase.FRAME_EVAL:
1010                                                 String evalString;
1011
1012                                                 evalString      = new String ("");
1013                                                 dbg_eval_tmp[0] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 0);                    // istr
1014                                                 dbg_eval_tmp[1] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 4);                    // iresult
1015                                                 dbg_eval_tmp[2] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 8);                    // ierror
1016
1017                                                 evalRet                 = getRawFrameData (entirePack, dbg_eval_tmp[1]);                //
1018                                                 evalString              = getRawFrameData (entirePack, dbg_eval_tmp[0]);                //
1019                                                 break;
1020
1021                                         case PHPDBGBase.FRAME_BPS:                                                          //
1022                                                 break;                                                                          //
1023
1024                                         case PHPDBGBase.FRAME_BPL:
1025                                                 int[] dbg_bpl_new;
1026
1027                                                 dbg_bpl_new        = new int[10];
1028                                                 dbg_bpl_new[0] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 0);
1029                                                 dbg_bpl_new[1] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 4);
1030                                                 dbg_bpl_new[2] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 8);
1031                                                 dbg_bpl_new[3] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 12);
1032                                                 dbg_bpl_new[4] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 16);
1033                                                 dbg_bpl_new[5] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 20);
1034                                                 dbg_bpl_new[6] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 24);
1035                                                 dbg_bpl_new[7] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 28);
1036                                                 dbg_bpl_new[8] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 32);
1037                                                 dbg_bpl_new[9] = PHPDBGBase.Char4ToInt (entirePack, nextFrame + 36);
1038
1039                                                 // look if breakpoint already exists in vector
1040                                                 for (i = 0; i < DBGBPList.size (); i++) {
1041                                                         dbg_bpl_tmp = (int[]) DBGBPList.get (i);
1042
1043                                                         if (dbg_bpl_tmp[8] == dbg_bpl_new[8]) {
1044                                                                 DBGBPList.remove (i);
1045
1046                                                                 break;
1047                                                         }
1048                                                 }
1049
1050                                                 // add breakpoint to vector
1051                                                 DBGBPList.add (dbg_bpl_new);
1052                                                 copyToLastBP (dbg_bpl_new);
1053
1054                                                 // mod no returned?
1055                                                 if (getModByNo (dbg_bpl_new[0]).equals ("")) {
1056                                                         String fileName;
1057
1058                                                         fileName = new String (getRawFrameData (entirePack, dbg_bpl_new[2]));
1059
1060                                                         if (dbg_bpl_new[0] != 0) {
1061                                                                 PHPDBGMod modNew;
1062
1063                                                                 modNew = new PHPDBGMod (dbg_bpl_new[0], fileName);
1064
1065                                                                 DBGMods.add (modNew);
1066                                                         }
1067                                                 }
1068                                                 break;
1069
1070                                         case PHPDBGBase.FRAME_VER:
1071                                                 break;
1072
1073                                         case PHPDBGBase.FRAME_SID:
1074                                                 sid = PHPDBGBase.Char4ToInt(entirePack, nextFrame + 0);
1075                                                 break;
1076
1077                                         case PHPDBGBase.FRAME_SRCLINESINFO:
1078                                                 break;
1079
1080                                         case PHPDBGBase.FRAME_SRCCTXINFO:
1081                                                 break;
1082
1083                                         case PHPDBGBase.FRAME_LOG:
1084                                                 break;
1085
1086                                         case PHPDBGBase.FRAME_PROF:
1087                                                 break;
1088
1089                                         case PHPDBGBase.FRAME_PROF_C:
1090                                                 break;
1091
1092                                         case PHPDBGBase.FRAME_SET_OPT:
1093                                                 break;
1094                                 }
1095
1096                                 nextFrame += dbg_frame[1];                                                      // go to next frame
1097                         }
1098
1099                         // Now process command
1100                         switch(cmdReceived) {
1101                                 case PHPDBGBase.DBGC_REPLY:
1102                                         break;
1103
1104                                 case PHPDBGBase.DBGC_STARTUP:
1105                                         break;
1106
1107                                 case PHPDBGBase.DBGC_END:
1108                                         sessionEnded = true;
1109                                         this.proxy.setTerminated();
1110                                         break;
1111
1112                                 case PHPDBGBase.DBGC_BREAKPOINT:
1113                                         BPUnderHit   = getBPUnderHit ();
1114                                         updateStackFrameList (stackList);
1115                                         break;
1116
1117                                 case PHPDBGBase.DBGC_STEPINTO_DONE:
1118                                 case PHPDBGBase.DBGC_STEPOVER_DONE:
1119                                 case PHPDBGBase.DBGC_STEPOUT_DONE:
1120                                 case PHPDBGBase.DBGC_EMBEDDED_BREAK:
1121                                 case PHPDBGBase.DBGC_PAUSE:
1122                                         BPUnderHit   = 1;
1123                                         updateStackFrameList (stackList);
1124                                         break;
1125
1126                                 case PHPDBGBase.DBGC_ERROR:
1127                                         stackList.clear ();
1128                                         updateStackFrameList (stackList);
1129                                         break;
1130
1131                                 case PHPDBGBase.DBGC_LOG:
1132                                         break;
1133
1134                                 case PHPDBGBase.DBGC_SID:
1135                                         break;
1136                         }
1137                 }
1138
1139                 return cmdReceived;                                         // Return the command we received with this block
1140         }
1141
1142     /**
1143      *
1144      */
1145
1146         public PHPStackFrame[] getStackList() {
1147                 return DBGStackList;
1148         }
1149
1150         /**
1151          * Reads from input buffer (response sent from DBG) the given number of chars
1152          * into frame buffer.
1153          *
1154          * @param buffer  The frame buffer where to store the read data from DBG.
1155          * @param bytes   The number of bytes (chars) which are to read from input stream.
1156          * @return        The number of bytes actually read.
1157          */
1158         private int readInput (char[] buffer, int bytes) throws IOException {
1159                 int bytesRead = 0;                                                                                      // Reset the bytes read counter
1160
1161                 for (int i = 0; i < bytes; i++) {                           // For the number of bytes we should read
1162                         if (in.ready ()) {                                                                              // If input stream is ready for reading
1163                                 buffer[i] = (char) (in.read () & 0x00FF);           // Read a char and store only the least significant 8-bits
1164                                 bytesRead++;                                        // Increment the bytes read counter
1165                         }
1166                         else {                                                  // Input stream is not ready
1167                                 break;                                              // Break the loop
1168                         }
1169                 }
1170
1171                 return bytesRead;                                                                                       // Return the number of bytes actually read
1172         }
1173
1174         /**
1175          * PHPProxy could stop the waiting for a response with this method.
1176          *
1177          */
1178         public void setShouldStop () {
1179                 this.shouldStop = true;
1180         }
1181
1182         /**
1183          * @param milliseconds The maximum time in milliseconds we wait for something
1184          *                     to be send from DBG.
1185          * @return             - true if something was received from DBG
1186          *                                         - false if nothing was send from DBG within the given time
1187          *
1188          */
1189         public boolean waitResponse (long milliseconds) throws IOException {
1190                 long timeout;
1191
1192                 timeout = System.currentTimeMillis () + milliseconds;           // Calculate the system time till we wait.
1193
1194                 while (System.currentTimeMillis () < timeout) {             // Is waiting time running out?
1195                         if (in.ready () || shouldStop) {                        //  No, so did we get something or should we stop now
1196                                 break;                                              //   Yes, break the waiting
1197                         }
1198                 }
1199
1200                 return in.ready ();                                         // true if we got something from DBG
1201         }
1202 }