Wer meine vorherigen Einträge gelesen hat, der weiß das der MDdb ( Managed Debugger ) ein hilfreiches Werkzeug sein kann. Ich verwende diesen gern, detaillierte Bugreports zu erstellen. Hierfür wurde ein Service geschrieben indem der Debugger immer bei einer unbehandelten Exception aktive wurde. Dieser Service lädt alle verwendeten Variablen und dessen Werte und speichert diese in einer Datei.
Problem:
Obwohl der oben beschriebene Service sehr nützlich ist, gibt es einiges schachern. In diesem Blogeintrag gehen wir auf die Formatierung ein. Sobald eine Variabel geschrieben wird, verwendet Microsoft das folgende Format. In jeder Zeile ist jeweils eine Kind-Variable, die mittels Tabstops eingerückt wurden. Für das reine Lesen ist diese Darstellung ausreichend. Für eine automatische Analyse ist diese Darstellung nicht ausreichend. Hier wäre ein Parser notwendig der diese Format versteht und es auswerten kann.
Beispiel:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 | LPLMind.Example.ArchiveClient _Parameters=System.Collections.Generic.Dictionary`2<System.String,System.String> buckets=array [17] [0] = 0 [1] = -1 [2] = 6 [3] = 5 [4] = 10 [5] = -1 [6] = -1 [7] = 4 [8] = -1 [9] = -1 [10] = -1 [11] = 9 [12] = 11 [13] = 12 [14] = -1 [15] = 8 [16] = -1 entries=array [17] [0] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [1] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [2] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [3] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [4] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [5] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [6] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [7] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [8] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [9] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [10] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [11] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [12] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [13] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [14] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [15] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> [16] = System.Collections.Generic.Dictionary`2+Entry<System.String,System.String> count=13 version=13 freeList=-1 freeCount=0 comparer=System.Collections.Generic.GenericEqualityComparer`1<System.String> keys=<null> values=<null> _syncRoot=<null> _Factory=PortCMIS.Client.Impl.SessionFactory _Session=<null> _Log=NLogLogger _Log=NLog.Logger _loggerType=System.RuntimeType _configuration=NLog.Internal.LoggerConfiguration _isTraceEnabled=False _isDebugEnabled=False _isInfoEnabled=True _isWarnEnabled=True _isErrorEnabled=True _isFatalEnabled=False LoggerReconfigured=<null> <Name>k__BackingField="Default" <Factory>k__BackingField=NLog.LogFactory BeforeLogged=<null> AfterLogged=<null> _RootFolder=<null> _Disposed=False <InstanceId>k__BackingField=System.Guid _a=108708905 _b=4093 _c=19931 _d=157 _e=37 _f=75 _g=251 _h=101 _i=59 _j=121 _k=60 <InstanceDateTime>k__BackingField=System.DateTimeOffset m_dateTime=System.DateTime dateData=637218401922876399 m_offsetMinutes=120 |
Lösung:
Meine Lösung nutzt einen anderen Weg als das schreiben einer Parsers. Ziel ist es die Ausgabe zu erweitern / verändern sodass ein Json Format ausgeben wird. Vorteil von Json ist das Libs gibt die dieses Format verstehen und eine passende Oberfläche, bzw. Navigation bieten. Leider entpuppt sich dieses Vorhaben als nicht ganz trivial. Eine Orientierung an der Klasse MDbgValue diese implementierte das oben beschriebene Format.
Leider ist die Klasse MDbgValue sealt und somit nicht vererbbar. Unsere Jsonvariante der Klasse MDbgValue wird somit vom MarshalByRefObject erben müssen.
Wie auch schon in MDbgValue verwenden wir dieselben Methoden, jedoch erweitern wir diese um einen JsonWriter. Das Ergebnis wird dann folglich im JsonWriter landen. Es gibt drei Hauptmethoden die zu anpassen sind. InternalGetValue, welches immer aufgerufen wird falls eine Variable ausgelesen werden soll. Hier sind alle Typen aufgelistet, sowohl auch die nativen Typen. PrintObject diese Methode ist für das Auslesen von komplexen Typen verantwortlich. Diese ruft InternalGetValue aus. PrintArray ist für das Auslesen von Arrays zuständig, diese nutzt auch die Methode InternalGetValue. Der untere Schnipsel zeigt das auswertet der Verschiedenen nativen Typen.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | switch (corValue2.Type) { case CorElementType.ELEMENT_TYPE_R4: case CorElementType.ELEMENT_TYPE_R8: jsonWriter.WriteValue( corValue2.CastToGenericValue() .GetValue()); return; case CorElementType.ELEMENT_TYPE_BOOLEAN: case CorElementType.ELEMENT_TYPE_CHAR: case CorElementType.ELEMENT_TYPE_I1: case CorElementType.ELEMENT_TYPE_U1: case CorElementType.ELEMENT_TYPE_I2: case CorElementType.ELEMENT_TYPE_U2: case CorElementType.ELEMENT_TYPE_I4: case CorElementType.ELEMENT_TYPE_U4: case CorElementType.ELEMENT_TYPE_I8: case CorElementType.ELEMENT_TYPE_U8: var obj = corValue2.CastToGenericValue() .GetValue(); jsonWriter.WriteValue(obj); return; case CorElementType.ELEMENT_TYPE_U: case CorElementType.ELEMENT_TYPE_I: var ptj = corValue2.CastToGenericValue() .GetValue(); jsonWriter.WriteValue(ptj.ToString()); return; case CorElementType.ELEMENT_TYPE_STRING: var stringValue = corValue2.CastToStringValue(); jsonWriter.WriteValue(stringValue.String); return; case CorElementType.ELEMENT_TYPE_PTR: jsonWriter.WriteValue("N/A"); return; case CorElementType.ELEMENT_TYPE_VALUETYPE: case CorElementType.ELEMENT_TYPE_CLASS: var objectValue = corValue2.CastToObjectValue(); PrintObject( jsonWriter, objectValue, expandDepth, canDoFunceval); return; case CorElementType.ELEMENT_TYPE_ARRAY: case CorElementType.ELEMENT_TYPE_SZARRAY: var arrayValue = corValue2.CastToArrayValue(); PrintArray( jsonWriter, arrayValue, expandDepth, canDoFunceval); return; case CorElementType.ELEMENT_TYPE_FNPTR: jsonWriter.WriteValue( "0x" + corValue2.CastToReferenceValue() .Value.ToString("X")); return; default: jsonWriter.WritePropertyName(corValue2.Type.ToString()); jsonWriter.WriteValue("N/A"); return; } |
Resultat:
Das Resultat falls alles richtig gemacht wurde sieht wie folgt aus:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 | { "Name": "this", "TypeName": "Net.LPLMmind.ArchiveClient", "ValueO": { "_Parameters": { "buckets": [ 0, -1, 6, 5, 10, -1, -1, 4, -1, -1, -1, 9, 11, 12, -1, 8, -1 ], "entries": [ "N/A", "N/A", "N/A", "N/A", "N/A", "N/A", "N/A", "N/A", "N/A", "N/A", "N/A", "N/A", "N/A", "N/A", "N/A", "N/A", "N/A" ], "count": 13, "version": 13, "freeList": -1, "freeCount": 0, "comparer": { "Type-": "System.Collections.Generic.GenericEqualityComparer`1<System.String>" }, "keys": null, "values": null, "_syncRoot": null, "Type-": "System.Collections.Generic.Dictionary`2<System.String,System.String>" }, "_Factory": { "Type-": "PortCMIS.Client.Impl.SessionFactory" }, "_Session": null, "_Log": { "BeforeLogged": null, "AfterLogged": null, "_Log": { "_loggerType": "N/A", "_configuration": "N/A", "_isTraceEnabled": false, "_isDebugEnabled": false, "_isInfoEnabled": true, "_isWarnEnabled": true, "_isErrorEnabled": true, "_isFatalEnabled": false, "LoggerReconfigured": null, "<Name>k__BackingField": "Default", "<Factory>k__BackingField": "N/A", "--Type": "NLog.Logger" }, "Type-": "NLogLogger" }, "_RootFolder": null, "_Disposed": false, "<InstanceId>k__BackingField": { "_a": -877632076, "_b": -10274, "_c": 16639, "_d": 130, "_e": 1, "_f": 191, "_g": 177, "_h": 120, "_i": 205, "_j": 157, "_k": 74, "--Type": "System.Guid" }, "<InstanceDateTime>k__BackingField": { "m_dateTime": { "dateData": 637221137525654467, "Type-": "System.DateTime" }, "m_offsetMinutes": 120, "Type-": "System.DateTimeOffset" }, "Type-": "Net.LPLMind.ArchiveClient" } } |
Dies kann nun für weitere Analysen genutzt werden. Den gesamten Quellcode findet ihr unten.
JsonMDbgValue.cs
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 | using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Runtime.InteropServices; using System.Text; using System.Text.RegularExpressions; using System.Threading.Tasks; using Microsoft.Samples.Debugging.CorDebug; using Microsoft.Samples.Debugging.CorDebug.NativeApi; using Microsoft.Samples.Debugging.CorMetadata; using Microsoft.Samples.Debugging.MdbgEngine; using Newtonsoft.Json; namespace Net.LPLMind.StackTraceApp { /// <summary> /// A MDbgValue representation to print the debug values into an Json format. /// </summary> internal class JsonMDbgValue : MarshalByRefObject { private JsonMDbgValue[] m_cachedFields; public static string[] WhiteList = { "^System.[^.]+$", //Alle "einfache" typen "^System.Collections.*" //Alle Collections }; /// <summary> /// Creates a new instance of the JsonMDbgValue Object. /// This constructor is public so that applications can use this class to print values (CorValue). /// CorValue\'s can be returned for example by funceval(CorEval.Result). /// </summary> /// <param name="process">The Process that will own the Value.</param> /// <param name="value">The CorValue that this JsonMDbgValue will start with.</param> public JsonMDbgValue( MDbgProcess process, CorValue value) { Initialize(process, null, value); } /// <summary> /// Creates a new instance of the JsonMDbgValue Object. /// This constructor is public so that applications can use this class to print values (CorValue). /// CorValue\'s can be returned for example by funceval(CorEval.Result). /// </summary> /// <param name="process">The Process that will own the Value.</param> /// <param name="name">The name of the variable.</param> /// <param name="value">The CorValue that this JsonMDbgValue will start with.</param> public JsonMDbgValue( MDbgProcess process, string name, CorValue value) { Initialize(process, name, value); } private void Initialize( MDbgProcess process, string name, CorValue value) { Process = process; Name = name; CorValue = value; } /// <summary>The CorValue stored in the JsonMDbgValue.</summary> /// <value>The CorValue.</value> public CorValue CorValue { get; private set; } /// <summary>The Process that owns this Value.</summary> /// <value>The Process.</value> public MDbgProcess Process { get; private set; } /// <summary>The Name of this Value.</summary> /// <value>The Name.</value> public string Name { get; private set; } /// <summary>The Name of this Type.</summary> /// <value>The TypeName.</value> public string TypeName { get { if (CorValue == null) return "N/A"; return InternalUtil.PrintCorType(Process, CorValue.ExactType); } } /// <summary>Is this type a complex type.</summary> /// <value>true if it is complex, else false.</value> public bool IsComplexType { get { if (CorValue == null) return false; CorValue corValue; try { corValue = Dereference(CorValue); } catch (COMException ex) { if (ex.ErrorCode == -2146233595) return false; throw; } if (corValue == null) return false; if (corValue.Type != CorElementType.ELEMENT_TYPE_CLASS) return corValue.Type == CorElementType.ELEMENT_TYPE_VALUETYPE; return true; } } /// <summary>Is this type an array type.</summary> /// <value>true if it is an array type, else false.</value> public bool IsArrayType { get { if (CorValue == null) return false; CorValue corValue; try { corValue = Dereference(CorValue); } catch (COMException ex) { if (ex.ErrorCode == -2146233595) return false; throw; } if (corValue == null) return false; if (corValue.Type != CorElementType.ELEMENT_TYPE_SZARRAY) return corValue.Type == CorElementType.ELEMENT_TYPE_ARRAY; return true; } } /// <summary>Is this Value Null.</summary> /// <value>true if it is Null, else false.</value> public bool IsNull { get { if (CorValue == null) return true; CorValue corValue; try { corValue = Dereference(CorValue); } catch (COMException ex) { if (ex.ErrorCode == -2146233595) return false; throw; } return corValue == null; } } /// <summary>Gets the Value.</summary> /// <param name="expand">Should it expand inner objects.</param> /// <returns>A string representation of the Value.</returns> public void GetStringValue( JsonWriter jsonWriter, bool expand) { GetStringValue(jsonWriter, expand ? 1 : 0); } /// <summary>Gets the Value.</summary> /// <param name="expandDepth"> /// How deep inner objects should be expanded. Value /// 0 means don\'t expand at all. /// </param> /// <returns>A string representation of the Value.</returns> public void GetStringValue( JsonWriter jsonWriter, int expandDepth) { GetStringValue(jsonWriter, expandDepth, true); } /// <summary>Gets the Value.</summary> /// <param name="expandDepth"> /// How deep inner objects should be expanded. Value /// 0 means don\'t expand at all. /// </param> /// <param name="canDoFunceval">Set to true if ToString() should be called to get better description.</param> /// <returns>A string representation of the Value.</returns> public void GetStringValue( JsonWriter jsonWriter, int expandDepth, bool canDoFunceval) { InternalGetValue(jsonWriter, expandDepth, canDoFunceval); } /// <summary>Gets the specified Field.</summary> /// <param name="name">The Name of the Field to get.</param> /// <returns>The Value of the specified Field.</returns> public JsonMDbgValue GetField( string name) { var mdbgValue = (JsonMDbgValue) null; foreach (var field in GetFields()) if (field.Name.Equals(name)) { mdbgValue = field; break; } if (mdbgValue == null) throw new MDbgValueException("Field \'" + name + "\' not found."); return mdbgValue; } /// <summary>Gets all the Fields</summary> /// <returns>An array of all Fields.</returns> public JsonMDbgValue[] GetFields() { if (!IsComplexType) throw new MDbgValueException("Type is not complex"); if (m_cachedFields == null) m_cachedFields = InternalGetFields(); return m_cachedFields; } /// <summary> /// Gets or Sets the Value of the JsonMDbgValue to the given value. /// </summary> /// <value>This is exposed as an Object but can a primitive type, CorReferenceValue, or CorGenericValue.</value> public object Value { get => throw new NotImplementedException(); set { if (value == null) throw new ArgumentNullException(nameof(value)); if (value is CorReferenceValue) { var referenceValue = CorValue.CastToReferenceValue(); if (referenceValue == null) throw new MDbgValueWrongTypeException("cannot assign reference value to non-reference value"); referenceValue.Value = ((CorReferenceValue) value).Value; } else if (value is CorGenericValue) { GetGenericValue() .SetValue(((CorGenericValue) value).GetValue()); } else { if (!value.GetType() .IsPrimitive) throw new MDbgValueWrongTypeException("Value is of unsupported type."); GetGenericValue() .SetValue(value); } } } internal void InternalSetName( string variableName) { Name = variableName; } /// <summary> /// Main methode to get an json string of on object /// </summary> /// <param name="jsonWriter"></param> /// <param name="expandDepth"></param> /// <param name="canDoFunceval"></param> private void InternalGetValue( JsonWriter jsonWriter, int expandDepth, bool canDoFunceval) { if (!isInWhitelist(this.TypeName)) { jsonWriter.WriteValue("N/A"); return; } var corValue1 = CorValue; if (corValue1 == null) { jsonWriter.WriteValue("N/A"); return; } CorValue corValue2; try { corValue2 = Dereference(corValue1); } catch (COMException ex) { if (ex.ErrorCode == -2146233595) { jsonWriter.WriteValue("N/A"); return; } throw; } if (corValue2 == null) { jsonWriter.WriteNull(); return; } Unbox(ref corValue2); switch (corValue2.Type) { case CorElementType.ELEMENT_TYPE_R4: case CorElementType.ELEMENT_TYPE_R8: jsonWriter.WriteValue( corValue2.CastToGenericValue() .GetValue()); return; case CorElementType.ELEMENT_TYPE_BOOLEAN: case CorElementType.ELEMENT_TYPE_CHAR: case CorElementType.ELEMENT_TYPE_I1: case CorElementType.ELEMENT_TYPE_U1: case CorElementType.ELEMENT_TYPE_I2: case CorElementType.ELEMENT_TYPE_U2: case CorElementType.ELEMENT_TYPE_I4: case CorElementType.ELEMENT_TYPE_U4: case CorElementType.ELEMENT_TYPE_I8: case CorElementType.ELEMENT_TYPE_U8: var obj = corValue2.CastToGenericValue() .GetValue(); jsonWriter.WriteValue(obj); return; case CorElementType.ELEMENT_TYPE_U: case CorElementType.ELEMENT_TYPE_I: var ptj = corValue2.CastToGenericValue() .GetValue(); jsonWriter.WriteValue(ptj.ToString()); return; case CorElementType.ELEMENT_TYPE_STRING: var stringValue = corValue2.CastToStringValue(); jsonWriter.WriteValue(stringValue.String); return; case CorElementType.ELEMENT_TYPE_PTR: jsonWriter.WriteValue("N/A"); return; case CorElementType.ELEMENT_TYPE_VALUETYPE: case CorElementType.ELEMENT_TYPE_CLASS: var objectValue = corValue2.CastToObjectValue(); PrintObject( jsonWriter, objectValue, expandDepth, canDoFunceval); return; case CorElementType.ELEMENT_TYPE_ARRAY: case CorElementType.ELEMENT_TYPE_SZARRAY: var arrayValue = corValue2.CastToArrayValue(); PrintArray( jsonWriter, arrayValue, expandDepth, canDoFunceval); return; case CorElementType.ELEMENT_TYPE_FNPTR: jsonWriter.WriteValue( "0x" + corValue2.CastToReferenceValue() .Value.ToString("X")); return; default: jsonWriter.WritePropertyName(corValue2.Type.ToString()); jsonWriter.WriteValue("N/A"); return; } } private void Unbox( ref CorValue value) { var boxValue = value.CastToBoxValue(); if (!(boxValue != null)) return; value = boxValue.GetObject(); } /// <summary> /// Recursively dereference the input value until we finally find a non-dereferenceable /// value. Along the way, optionally build up a "ptr string" that shows the addresses /// we dereference, separated by "->". /// </summary> /// <param name="value">Value to dereference</param> /// <param name="ptrStringBuilder"> /// StringBuilder if caller wants us to generate /// a "ptr string" (in which case we\'ll stick it there). If caller doesn\'t want /// a ptr string, this can be null /// </param> /// <returns>CorValue we arrive at after dereferencing as many times as we can</returns> private CorValue Dereference( CorValue value) { while (true) { var referenceValue = value.CastToReferenceValue(); if (!(referenceValue == null)) { if (!referenceValue.IsNull) { var corValue = (CorValue) null; try { corValue = referenceValue.Dereference(); } catch (COMException ex) { if (ex.ErrorCode != -2146231222) throw; } if (!(corValue == null)) value = corValue; else return value; } else { break; } } else { return value; } } return null; } /// <summary> /// Return the enum string /// </summary> /// <param name="ov"></param> /// <param name="type"></param> /// <returns></returns> private string InternalGetEnumString( CorObjectValue ov, MetadataType type) { var enumValues = type.EnumValues; var uint64 = Convert.ToUInt64( ov.CastToGenericValue() .UnsafeGetValueAsType(type.EnumUnderlyingType), CultureInfo.InvariantCulture); var stringBuilder = new StringBuilder(); var num = uint64; var flag = true; for (var index = enumValues.Count - 1; index >= 0; --index) if ((long) enumValues[index] .Value == (long) uint64 || type.ReallyIsFlagsEnum && enumValues[index] .Value != 0UL && ((long) enumValues[index] .Value & (long) uint64) == (long) enumValues[index] .Value) { num &= ~enumValues[index] .Value; if (!flag) { if (type.ReallyIsFlagsEnum) stringBuilder.Insert(0, ", "); else stringBuilder.Insert(0, " / "); } stringBuilder.Insert( 0, enumValues[index] .Key); flag = false; } if (num != 0UL) { if (flag) stringBuilder.Insert(0, num); else stringBuilder.AppendFormat(" (Unnamed bits: {0})", num); } return stringBuilder.ToString(); } private bool isInWhitelist( string typeString) { foreach (var item in WhiteList) { bool isMatch = Regex.IsMatch(typeString, item); if (isMatch) return true; } return false; } /// <summary> /// Print an Object into Jsonformat /// </summary> /// <param name="jsonWriter">The Json Writer</param> /// <param name="ov">The object to print</param> /// <param name="expandDepth">The Max depth for the object</param> /// <param name="canDoFunceval"></param> private void PrintObject( JsonWriter jsonWriter, CorObjectValue ov, int expandDepth, bool canDoFunceval) { var flag = true; var stringBuilderType = new StringBuilder(); string coreType=InternalUtil.PrintCorType(Process, ov.ExactType); stringBuilderType.Append(coreType); if (expandDepth > 0 ) { jsonWriter.WriteStartObject(); if (IsComplexType) { var fields = GetFields(); var fieldNames = new HashSet<string>(); foreach (var field in fields) { if (fieldNames.Contains(field.Name)) continue; jsonWriter.WritePropertyName(field.Name); field.GetStringValue(jsonWriter, expandDepth - 1, false); fieldNames.Add(field.Name); } } if (ov.IsValueClass && canDoFunceval) { var corClass = ov.ExactType.Class; var type = Process.Modules.Lookup(corClass.Module) .Importer.GetType(corClass.Token) as MetadataType; if (type.ReallyIsEnum) stringBuilderType.AppendFormat(" <{0}>", InternalGetEnumString(ov, type)); else if (Process.IsRunning) stringBuilderType.Append(" <N/A during run>"); else try { var active = Process.Threads.Active; var heapValue = ov.CastToHeapValue(); var corValue = !(heapValue != null) ? ov : (CorValue) heapValue.CreateHandle(CorDebugHandleType.HANDLE_WEAK_TRACK_RESURRECTION); try { var eval = Process.Threads.Active.CorThread.CreateEval(); Process.CorProcess.SetAllThreadsDebugState(CorDebugThreadState.THREAD_SUSPEND, active.CorThread); var mdbgFunction = Process.ResolveFunctionName( null, "System.Object", "ToString", corValue.ExactType.Class.Module.Assembly.AppDomain); eval.CallFunction( mdbgFunction.CorFunction, new CorValue[1] { corValue }); Process.Go(); while (true) { Process.StopEvent.WaitOne(); if (!(Process.StopReason is EvalCompleteStopReason)) { if (!(Process.StopReason is ProcessExitedStopReason) && !(Process.StopReason is EvalExceptionStopReason)) { Process.Go(); } else { stringBuilderType.Append(" <N/A cannot evaluate>"); break; } } else { break; } } if (eval.Result == null) { stringBuilderType.Append("N/A"); } else { CorValue corValue2 = null; try { corValue2 = Dereference(eval.Result); stringBuilderType.Append("<" + InternalUtil.PrintCorType(Process, corValue2.ExactType) + ">"); } catch (COMException ex) { if (ex.ErrorCode == -2146233595) stringBuilderType.Append("N/A"); } if (corValue2 == null) stringBuilderType.Append("N/A"); } } catch (COMException ex) { if (ex.ErrorCode != -2146233573) stringBuilderType.Append("N/A"); } catch (NotImplementedException ex) { flag = false; } finally { if (flag) Process.CorProcess.SetAllThreadsDebugState(CorDebugThreadState.THREAD_RUN, active.CorThread); } } catch (MDbgNoActiveInstanceException e) { stringBuilderType.Append("N/A"); } } jsonWriter.WritePropertyName("Type-"); jsonWriter.WriteValue(stringBuilderType.ToString()); jsonWriter.WriteEndObject(); return; } jsonWriter.WriteValue("N/A"); } /// <summary> /// Print an Array into a json format /// </summary> /// <param name="jsonWriter"></param> /// <param name="av"></param> /// <param name="expandDepth"></param> /// <param name="canDoFunceval"></param> private void PrintArray( JsonWriter jsonWriter, CorArrayValue av, int expandDepth, bool canDoFunceval) { jsonWriter.WriteStartArray(); var dimensions = av.GetDimensions(); if (expandDepth > 0 && av.Rank == 1 && av.ElementType != CorElementType.ELEMENT_TYPE_VOID) for (var position = 0; position < dimensions[0]; ++position) { var mdbgValue = new JsonMDbgValue(Process, av.GetElementAtPosition(position)); mdbgValue.GetStringValue(jsonWriter, expandDepth - 1, canDoFunceval); } jsonWriter.WriteEndArray(); } /// <summary> /// Return fields f an object /// </summary> /// <returns></returns> private JsonMDbgValue[] InternalGetFields() { var mdbgValueList = new List<JsonMDbgValue>(); var corValue1 = Dereference(CorValue); if (corValue1 == null) throw new MDbgValueException("null value"); Unbox(ref corValue1); var objectValue = corValue1.CastToObjectValue(); var exactType = objectValue.ExactType; var frame = (CorFrame) null; if (Process.Threads.HaveActive && Process.Threads.Active.HaveCurrentFrame) { var mdbgFrame = Process.Threads.Active.CurrentFrame; while (mdbgFrame != null && !mdbgFrame.IsManaged) mdbgFrame = mdbgFrame.NextUp; if (mdbgFrame != null) frame = mdbgFrame.CorFrame; } var managedClass = objectValue.Class; var mdbgModule = Process.Modules.Lookup(managedClass.Module); while (true) { foreach (MetadataFieldInfo field in mdbgModule.Importer.GetType(managedClass.Token) .GetFields()) { var corValue2 = (CorValue) null; try { if (field.IsLiteral) continue; if (field.IsStatic) { if (!(frame == null)) corValue2 = exactType.GetStaticFieldValue(field.MetadataToken, frame); else continue; } else { corValue2 = objectValue.GetFieldValue(managedClass, field.MetadataToken); } } catch (COMException ex) { } mdbgValueList.Add(new JsonMDbgValue(Process, field.Name, corValue2)); } exactType = exactType.Base; if (!(exactType == null)) { managedClass = exactType.Class; mdbgModule = Process.Modules.Lookup(managedClass.Module); } else { break; } } return mdbgValueList.ToArray(); } private CorGenericValue GetGenericValue() { var genericValue = CorValue.CastToGenericValue(); if (genericValue == null) throw new MDbgValueWrongTypeException(); return genericValue; } } } |