mcs/class/corlib/System.Runtime.InteropServices/Marshal.cs

   1 // System.Runtime.InteropServices.Marshal.cs
   2 //
   3 // Sean MacIsaac (macisaac@ximian.com)
   4 // Paolo Molaro (lupus@ximian.com)
   5 // Dietmar Maurer (dietmar@ximian.com)
   6 // Jonathan Chambers (joncham@gmail.com)
   7 //
   8 // (C) 2001-2002 Ximian, Inc.
   9
  10 //
  11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System.Collections;
  34 using System.Collections.Generic;
  35 using System.Runtime.CompilerServices;
  36 using System;
  37 using System.Security;
  38 using System.Reflection;
  39 using System.Threading;
  40 using System.Runtime.InteropServices.ComTypes;
  41
  42 using System.Runtime.ConstrainedExecution;
  43 #if !FULL_AOT_RUNTIME
  44 using Mono.Interop;
  45 #endif
  46
  47 namespace System.Runtime.InteropServices
  48 {
  49         public static class Marshal
  50         {
  51                 /* fields */
  52                 public static readonly int SystemMaxDBCSCharSize = 2; // don't know what this is
  53                 public static readonly int SystemDefaultCharSize = Environment.IsRunningOnWindows ? 2 : 1;
  54
  55 #if !MOBILE
  56                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
  57                 private extern static int AddRefInternal (IntPtr pUnk);
  58 #endif
  59
  60                 public static int AddRef (IntPtr pUnk)
  61                 {
  62 #if !MOBILE
  63                         if (pUnk == IntPtr.Zero)
  64                                 throw new ArgumentException ("Value cannot be null.", "pUnk");
  65                         return AddRefInternal (pUnk);
  66 #else
  67                         throw new NotImplementedException ();
  68 #endif
  69                 }
  70
  71                 [MonoTODO]
  72                 public static bool AreComObjectsAvailableForCleanup ()
  73                 {
  74                         return false;
  75                 }
  76
  77                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  78                 public extern static IntPtr AllocCoTaskMem (int cb);
  79
  80                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  81                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.MayFail)]
  82                 public extern static IntPtr AllocHGlobal (IntPtr cb);
  83
  84                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.MayFail)]
  85                 public static IntPtr AllocHGlobal (int cb)
  86                 {
  87                         return AllocHGlobal ((IntPtr)cb);
  88                 }
  89
  90                 [MonoTODO]
  91                 public static object BindToMoniker (string monikerName)
  92                 {
  93                         throw new NotImplementedException ();
  94                 }
  95
  96                 [MonoTODO]
  97                 public static void ChangeWrapperHandleStrength (object otp, bool fIsWeak)
  98                 {
  99                         throw new NotImplementedException ();
 100                 }
 101
 102                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 103                 internal extern static void copy_to_unmanaged (Array source, int startIndex,
 104                                                                IntPtr destination, int length);
 105
 106                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 107                 internal extern static void copy_from_unmanaged (IntPtr source, int startIndex,
 108                                                                  Array destination, int length);
 109
 110                 public static void Copy (byte[] source, int startIndex, IntPtr destination, int length)
 111                 {
 112                         copy_to_unmanaged (source, startIndex, destination, length);
 113                 }
 114
 115                 public static void Copy (char[] source, int startIndex, IntPtr destination, int length)
 116                 {
 117                         copy_to_unmanaged (source, startIndex, destination, length);
 118                 }
 119
 120                 public static void Copy (short[] source, int startIndex, IntPtr destination, int length)
 121                 {
 122                         copy_to_unmanaged (source, startIndex, destination, length);
 123                 }
 124
 125                 public static void Copy (int[] source, int startIndex, IntPtr destination, int length)
 126                 {
 127                         copy_to_unmanaged (source, startIndex, destination, length);
 128                 }
 129
 130                 public static void Copy (long[] source, int startIndex, IntPtr destination, int length)
 131                 {
 132                         copy_to_unmanaged (source, startIndex, destination, length);
 133                 }
 134
 135                 public static void Copy (float[] source, int startIndex, IntPtr destination, int length)
 136                 {
 137                         copy_to_unmanaged (source, startIndex, destination, length);
 138                 }
 139
 140                 public static void Copy (double[] source, int startIndex, IntPtr destination, int length)
 141                 {
 142                         copy_to_unmanaged (source, startIndex, destination, length);
 143                 }
 144
 145                 public static void Copy (IntPtr[] source, int startIndex, IntPtr destination, int length)
 146                 {
 147                         copy_to_unmanaged (source, startIndex, destination, length);
 148                 }
 149
 150                 public static void Copy (IntPtr source, byte[] destination, int startIndex, int length)
 151                 {
 152                         copy_from_unmanaged (source, startIndex, destination, length);
 153                 }
 154
 155                 public static void Copy (IntPtr source, char[] destination, int startIndex, int length)
 156                 {
 157                         copy_from_unmanaged (source, startIndex, destination, length);
 158                 }
 159
 160                 public static void Copy (IntPtr source, short[] destination, int startIndex, int length)
 161                 {
 162                         copy_from_unmanaged (source, startIndex, destination, length);
 163                 }
 164
 165                 public static void Copy (IntPtr source, int[] destination, int startIndex, int length)
 166                 {
 167                         copy_from_unmanaged (source, startIndex, destination, length);
 168                 }
 169
 170                 public static void Copy (IntPtr source, long[] destination, int startIndex, int length)
 171                 {
 172                         copy_from_unmanaged (source, startIndex, destination, length);
 173                 }
 174
 175                 public static void Copy (IntPtr source, float[] destination, int startIndex, int length)
 176                 {
 177                         copy_from_unmanaged (source, startIndex, destination, length);
 178                 }
 179
 180                 public static void Copy (IntPtr source, double[] destination, int startIndex, int length)
 181                 {
 182                         copy_from_unmanaged (source, startIndex, destination, length);
 183                 }
 184
 185                 public static void Copy (IntPtr source, IntPtr[] destination, int startIndex, int length)
 186                 {
 187                         copy_from_unmanaged (source, startIndex, destination, length);
 188                 }
 189
 190                 public static IntPtr CreateAggregatedObject (IntPtr pOuter,
 191                                                              object o)
 192                 {
 193                         throw new NotImplementedException ();
 194                 }
 195
 196                 public static IntPtr CreateAggregatedObject<T> (IntPtr pOuter, T o) {
 197                         return CreateAggregatedObject (pOuter, (object)o);
 198                 }
 199
 200                 public static object CreateWrapperOfType (object o, Type t)
 201                 {
 202 #if FULL_AOT_RUNTIME
 203                         throw new PlatformNotSupportedException ();
 204 #else
 205                         __ComObject co = o as __ComObject;
 206                         if (co == null)
 207                                 throw new ArgumentException ("o must derive from __ComObject", "o");
 208                         if (t == null)
 209                                 throw new ArgumentNullException ("t");
 210
 211                         Type[] itfs = o.GetType ().GetInterfaces ();
 212                         foreach (Type itf in itfs) {
 213                                 if (itf.IsImport && co.GetInterface (itf) == IntPtr.Zero)
 214                                         throw new InvalidCastException ();
 215                         }
 216
 217                         return ComInteropProxy.GetProxy (co.IUnknown, t).GetTransparentProxy ();
 218 #endif
 219                 }
 220
 221                 public static TWrapper CreateWrapperOfType<T, TWrapper> (T o) {
 222                         return (TWrapper)CreateWrapperOfType ((object)o, typeof (TWrapper));
 223                 }
 224
 225                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 226                 [ComVisible (true)]
 227                 public extern static void DestroyStructure (IntPtr ptr, Type structuretype);
 228
 229                 public static void DestroyStructure<T> (IntPtr ptr) {
 230                         DestroyStructure (ptr, typeof (T));
 231                 }
 232
 233                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 234                 public extern static void FreeBSTR (IntPtr ptr);
 235
 236                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 237                 public extern static void FreeCoTaskMem (IntPtr ptr);
 238
 239                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 240                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 241                 public extern static void FreeHGlobal (IntPtr hglobal);
 242
 243                 static void ClearBSTR (IntPtr ptr)
 244                 {
 245                         int len = ReadInt32 (ptr, -4);
 246
 247                         for (int i = 0; i < len; i++)
 248                                 WriteByte (ptr, i, 0);
 249                 }
 250
 251                 public static void ZeroFreeBSTR (IntPtr s)
 252                 {
 253                         ClearBSTR (s);
 254                         FreeBSTR (s);
 255                 }
 256
 257                 static void ClearAnsi (IntPtr ptr)
 258                 {
 259                         for (int i = 0; ReadByte (ptr, i) != 0; i++)
 260                                 WriteByte (ptr, i, 0);
 261                 }
 262
 263                 static void ClearUnicode (IntPtr ptr)
 264                 {
 265                         for (int i = 0; ReadInt16 (ptr, i) != 0; i += 2)
 266                                 WriteInt16 (ptr, i, 0);
 267                 }
 268
 269                 public static void ZeroFreeCoTaskMemAnsi (IntPtr s)
 270                 {
 271                         ClearAnsi (s);
 272                         FreeCoTaskMem (s);
 273                 }
 274
 275                 public static void ZeroFreeCoTaskMemUnicode (IntPtr s)
 276                 {
 277                         ClearUnicode (s);
 278                         FreeCoTaskMem (s);
 279                 }
 280
 281                 public static void ZeroFreeGlobalAllocAnsi (IntPtr s)
 282                 {
 283                         ClearAnsi (s);
 284                         FreeHGlobal (s);
 285                 }
 286
 287                 public static void ZeroFreeGlobalAllocUnicode (IntPtr s)
 288                 {
 289                         ClearUnicode (s);
 290                         FreeHGlobal (s);
 291                 }
 292
 293 #if !FULL_AOT_RUNTIME
 294                 public static Guid GenerateGuidForType (Type type)
 295                 {
 296                         return type.GUID;
 297                 }
 298
 299                 public static string GenerateProgIdForType (Type type)
 300                 {
 301                         IList<CustomAttributeData> attrs = CustomAttributeData.GetCustomAttributes (type);
 302
 303                         foreach (var a in attrs)
 304                         {
 305                                 var dt = a.Constructor.DeclaringType;
 306                                 string name = dt.Name;
 307                                 if (name == "ProgIdAttribute")
 308                                 {
 309                                         var args = a.ConstructorArguments;
 310                                         string text = a.ConstructorArguments[0].Value as string;
 311                                         if (text == null)
 312                                         {
 313                                                 text = string.Empty;
 314                                         }
 315                                         return text;
 316                                 }
 317                         }
 318
 319                         return type.FullName;
 320                 }
 321
 322                 [MonoTODO]
 323                 public static object GetActiveObject (string progID)
 324                 {
 325                         throw new NotImplementedException ();
 326                 }
 327
 328 #if !MOBILE
 329                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 330                 private extern static IntPtr GetCCW (object o, Type T);
 331
 332                 private static IntPtr GetComInterfaceForObjectInternal (object o, Type T)
 333                 {
 334                         if (IsComObject (o))
 335                                 return ((__ComObject)o).GetInterface (T);
 336                         else
 337                                 return GetCCW (o, T);
 338                 }
 339 #endif
 340 #endif // !FULL_AOT_RUNTIME
 341
 342                 public static IntPtr GetComInterfaceForObject (object o, Type T)
 343                 {
 344 #if MOBILE
 345                         throw new PlatformNotSupportedException ();
 346 #else
 347                         IntPtr pItf = GetComInterfaceForObjectInternal (o, T);
 348                         AddRef (pItf);
 349                         return pItf;
 350 #endif
 351                 }
 352
 353                 [MonoTODO]
 354                 public static IntPtr GetComInterfaceForObject (object o, Type T, CustomQueryInterfaceMode mode)
 355                 {
 356                         throw new NotImplementedException ();
 357                 }
 358
 359                 public static IntPtr GetComInterfaceForObject<T, TInterface> (T o) {
 360                         return GetComInterfaceForObject ((object)o, typeof (T));
 361                 }
 362
 363 #if !FULL_AOT_RUNTIME
 364                 [MonoTODO]
 365                 public static IntPtr GetComInterfaceForObjectInContext (object o, Type t)
 366                 {
 367                         throw new NotImplementedException ();
 368                 }
 369
 370                 [MonoNotSupportedAttribute ("MSDN states user code should never need to call this method.")]
 371                 public static object GetComObjectData (object obj, object key)
 372                 {
 373                         throw new NotSupportedException ("MSDN states user code should never need to call this method.");
 374                 }
 375
 376 #if !MOBILE
 377                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 378                 private extern static int GetComSlotForMethodInfoInternal (MemberInfo m);
 379 #endif
 380
 381                 public static int GetComSlotForMethodInfo (MemberInfo m)
 382                 {
 383 #if !MOBILE
 384                         if (m == null)
 385                                 throw new ArgumentNullException ("m");
 386                         if (!(m is MethodInfo))
 387                                 throw new ArgumentException ("The MemberInfo must be an interface method.", "m");
 388                         if (!m.DeclaringType.IsInterface)
 389                                 throw new ArgumentException ("The MemberInfo must be an interface method.", "m");
 390                         return GetComSlotForMethodInfoInternal (m);
 391 #else
 392                         throw new NotImplementedException ();
 393 #endif
 394                 }
 395
 396                 [MonoTODO]
 397                 public static int GetEndComSlot (Type t)
 398                 {
 399                         throw new NotImplementedException ();
 400                 }
 401
 402                 [MonoTODO]
 403                 [ComVisible (true)]
 404                 public static IntPtr GetExceptionPointers()
 405                 {
 406                         throw new NotImplementedException ();
 407                 }
 408
 409                 public static IntPtr GetHINSTANCE (Module m)
 410                 {
 411                         if (m == null)
 412                                 throw new ArgumentNullException ("m");
 413
 414                         return m.GetHINSTANCE ();
 415                 }
 416 #endif // !FULL_AOT_RUNTIME
 417
 418                 public static int GetExceptionCode ()
 419                 {
 420                         throw new PlatformNotSupportedException ();
 421                 }
 422
 423                 public static int GetHRForException (Exception e)
 424                 {
 425                         if (e == null) return 0;
 426
 427 #if FEATURE_COMINTEROP
 428                         var errorInfo = new ManagedErrorInfo(e);
 429                         SetErrorInfo (0, errorInfo);
 430 #endif
 431
 432                         return e._HResult;
 433                 }
 434
 435                 [MonoTODO]
 436                 [ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
 437                 public static int GetHRForLastWin32Error()
 438                 {
 439 #if FULL_AOT_RUNTIME
 440                         throw new PlatformNotSupportedException ();
 441 #else
 442                         throw new NotImplementedException ();
 443 #endif
 444                 }
 445
 446 #if !FULL_AOT_RUNTIME
 447                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 448                 private extern static IntPtr GetIDispatchForObjectInternal (object o);
 449
 450                 public static IntPtr GetIDispatchForObject (object o)
 451                 {
 452                         IntPtr pUnk = GetIDispatchForObjectInternal (o);
 453                         // Internal method does not AddRef
 454                         AddRef (pUnk);
 455                         return pUnk;
 456                 }
 457
 458                 [MonoTODO]
 459                 public static IntPtr GetIDispatchForObjectInContext (object o)
 460                 {
 461                         throw new NotImplementedException ();
 462                 }
 463
 464                 [MonoTODO]
 465                 public static IntPtr GetITypeInfoForType (Type t)
 466                 {
 467                         throw new NotImplementedException ();
 468                 }
 469
 470                 [MonoTODO]
 471                 public static IntPtr GetIUnknownForObjectInContext (object o)
 472                 {
 473                         throw new NotImplementedException ();
 474                 }
 475
 476                 [MonoTODO]
 477                 [Obsolete ("This method has been deprecated")]
 478                 public static IntPtr GetManagedThunkForUnmanagedMethodPtr (IntPtr pfnMethodToWrap, IntPtr pbSignature, int cbSignature)
 479                 {
 480                         throw new NotImplementedException ();
 481                 }
 482
 483                 [MonoTODO]
 484                 public static MemberInfo GetMethodInfoForComSlot (Type t, int slot, ref ComMemberType memberType)
 485                 {
 486                         throw new NotImplementedException ();
 487                 }
 488
 489                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 490                 private extern static IntPtr GetIUnknownForObjectInternal (object o);
 491
 492 #endif // !FULL_AOT_RUNTIME
 493
 494                 public static IntPtr GetIUnknownForObject (object o)
 495                 {
 496 #if FULL_AOT_RUNTIME
 497                         throw new PlatformNotSupportedException ();
 498 #else
 499                         IntPtr pUnk = GetIUnknownForObjectInternal (o);
 500                         // Internal method does not AddRef
 501                         AddRef (pUnk);
 502                         return pUnk;
 503 #endif
 504                 }
 505
 506                 public static void GetNativeVariantForObject (object obj, IntPtr pDstNativeVariant)
 507                 {
 508 #if FULL_AOT_RUNTIME
 509                         throw new PlatformNotSupportedException ();
 510 #else
 511                         Variant vt = new Variant();
 512                         vt.SetValue(obj);
 513                         Marshal.StructureToPtr(vt, pDstNativeVariant, false);
 514 #endif
 515                 }
 516
 517                 public static void GetNativeVariantForObject<T> (T obj, IntPtr pDstNativeVariant) {
 518                         GetNativeVariantForObject ((object)obj, pDstNativeVariant);
 519                 }
 520
 521 #if !MOBILE && !FULL_AOT_RUNTIME
 522                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 523                 private static extern object GetObjectForCCW (IntPtr pUnk);
 524 #endif
 525
 526                 public static object GetObjectForIUnknown (IntPtr pUnk)
 527                 {
 528 #if MOBILE || FULL_AOT_RUNTIME
 529                         throw new PlatformNotSupportedException ();
 530 #else
 531                         object obj = GetObjectForCCW (pUnk);
 532                         // was not a CCW
 533                         if (obj == null) {
 534                                 ComInteropProxy proxy = ComInteropProxy.GetProxy (pUnk, typeof (__ComObject));
 535                                 obj = proxy.GetTransparentProxy ();
 536                         }
 537                         return obj;
 538 #endif
 539                 }
 540
 541                 public static object GetObjectForNativeVariant (IntPtr pSrcNativeVariant)
 542                 {
 543 #if FULL_AOT_RUNTIME
 544                         throw new PlatformNotSupportedException ();
 545 #else
 546                         Variant vt = (Variant)Marshal.PtrToStructure(pSrcNativeVariant, typeof(Variant));
 547                         return vt.GetValue();
 548 #endif
 549                 }
 550
 551                 public static T GetObjectForNativeVariant<T> (IntPtr pSrcNativeVariant)
 552                 {
 553 #if FULL_AOT_RUNTIME
 554                         throw new PlatformNotSupportedException ();
 555 #else
 556                         Variant vt = (Variant)Marshal.PtrToStructure(pSrcNativeVariant, typeof(Variant));
 557                         return (T)vt.GetValue();
 558 #endif
 559                 }
 560
 561                 public static object[] GetObjectsForNativeVariants (IntPtr aSrcNativeVariant, int cVars)
 562                 {
 563 #if FULL_AOT_RUNTIME
 564                         throw new PlatformNotSupportedException ();
 565 #else
 566                         if (cVars < 0)
 567                                 throw new ArgumentOutOfRangeException ("cVars", "cVars cannot be a negative number.");
 568                         object[] objects = new object[cVars];
 569                         for (int i = 0; i < cVars; i++)
 570                                 objects[i] = GetObjectForNativeVariant ((IntPtr)(aSrcNativeVariant.ToInt64 () +
 571                                         i * SizeOf (typeof(Variant))));
 572                         return objects;
 573 #endif
 574                 }
 575
 576                 public static T[] GetObjectsForNativeVariants<T> (IntPtr aSrcNativeVariant, int cVars)
 577                 {
 578 #if FULL_AOT_RUNTIME
 579                         throw new PlatformNotSupportedException ();
 580 #else
 581                         if (cVars < 0)
 582                                 throw new ArgumentOutOfRangeException ("cVars", "cVars cannot be a negative number.");
 583                         T[] objects = new T[cVars];
 584                         for (int i = 0; i < cVars; i++)
 585                                 objects[i] = GetObjectForNativeVariant<T> ((IntPtr)(aSrcNativeVariant.ToInt64 () +
 586                                         i * SizeOf (typeof(Variant))));
 587                         return objects;
 588 #endif
 589                 }
 590
 591                 [MonoTODO]
 592                 public static int GetStartComSlot (Type t)
 593                 {
 594 #if FULL_AOT_RUNTIME
 595                         throw new PlatformNotSupportedException ();
 596 #else
 597                         throw new NotImplementedException ();
 598 #endif
 599                 }
 600
 601 #if !FULL_AOT_RUNTIME
 602                 [MonoTODO]
 603                 [Obsolete ("This method has been deprecated")]
 604                 public static Thread GetThreadFromFiberCookie (int cookie)
 605                 {
 606                         throw new NotImplementedException ();
 607                 }
 608
 609                 public static object GetTypedObjectForIUnknown (IntPtr pUnk, Type t)
 610                 {
 611                         ComInteropProxy proxy = new ComInteropProxy (pUnk, t);
 612                         __ComObject co = (__ComObject)proxy.GetTransparentProxy ();
 613                         foreach (Type itf in t.GetInterfaces ()) {
 614                                 if ((itf.Attributes & TypeAttributes.Import) == TypeAttributes.Import) {
 615                                         if (co.GetInterface (itf) == IntPtr.Zero)
 616                                                 return null;
 617                                 }
 618                         }
 619                         return co;
 620                 }
 621
 622                 [MonoTODO]
 623                 public static Type GetTypeForITypeInfo (IntPtr piTypeInfo)
 624                 {
 625                         throw new NotImplementedException ();
 626                 }
 627
 628                 [Obsolete]
 629                 [MonoTODO]
 630                 public static string GetTypeInfoName (UCOMITypeInfo pTI)
 631                 {
 632                         throw new NotImplementedException ();
 633                 }
 634
 635                 [Obsolete]
 636                 [MonoTODO]
 637                 public static Guid GetTypeLibGuid (UCOMITypeLib pTLB)
 638                 {
 639                         throw new NotImplementedException ();
 640                 }
 641
 642                 [MonoTODO]
 643                 public static Guid GetTypeLibGuid (ITypeLib typelib)
 644                 {
 645                         throw new NotImplementedException ();
 646                 }
 647
 648                 [MonoTODO]
 649                 public static Guid GetTypeLibGuidForAssembly (Assembly asm)
 650                 {
 651                         throw new NotImplementedException ();
 652                 }
 653
 654                 [Obsolete]
 655                 [MonoTODO]
 656                 public static int GetTypeLibLcid (UCOMITypeLib pTLB)
 657                 {
 658                         throw new NotImplementedException ();
 659                 }
 660
 661                 [MonoTODO]
 662                 public static int GetTypeLibLcid (ITypeLib typelib)
 663                 {
 664                         throw new NotImplementedException ();
 665                 }
 666
 667                 [Obsolete]
 668                 [MonoTODO]
 669                 public static string GetTypeLibName (UCOMITypeLib pTLB)
 670                 {
 671                         throw new NotImplementedException ();
 672                 }
 673
 674                 [MonoTODO]
 675                 public static string GetTypeLibName (ITypeLib typelib)
 676                 {
 677                         throw new NotImplementedException ();
 678                 }
 679
 680                 [MonoTODO]
 681                 public static void GetTypeLibVersionForAssembly (Assembly inputAssembly, out int majorVersion, out int minorVersion)
 682                 {
 683                         throw new NotImplementedException ();
 684                 }
 685
 686                 [MonoTODO]
 687                 [Obsolete ("This method has been deprecated")]
 688                 public static IntPtr GetUnmanagedThunkForManagedMethodPtr (IntPtr pfnMethodToWrap, IntPtr pbSignature, int cbSignature)
 689                 {
 690                         throw new NotImplementedException ();
 691                 }
 692
 693                 [MonoTODO]
 694                 public static bool IsTypeVisibleFromCom (Type t)
 695                 {
 696                         throw new NotImplementedException ();
 697                 }
 698
 699                 [MonoTODO]
 700                 public static int NumParamBytes (MethodInfo m)
 701                 {
 702                         throw new NotImplementedException ();
 703                 }
 704 #endif // !FULL_AOT_RUNTIME
 705
 706                 public static Type GetTypeFromCLSID (Guid clsid)
 707                 {
 708                         throw new PlatformNotSupportedException ();
 709                 }
 710
 711                 public static string GetTypeInfoName (ITypeInfo typeInfo)
 712                 {
 713                         throw new PlatformNotSupportedException ();
 714                 }
 715
 716                 public static object GetUniqueObjectForIUnknown (IntPtr unknown)
 717                 {
 718                         throw new PlatformNotSupportedException ();
 719                 }
 720
 721 #if !MOBILE
 722                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 723                 public extern static bool IsComObject (object o);
 724 #else
 725                 public static bool IsComObject (object o)
 726                 {
 727                         throw new PlatformNotSupportedException ();
 728                 }
 729 #endif
 730
 731                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 732                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 733                 public static extern int GetLastWin32Error();
 734
 735                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 736                 public extern static IntPtr OffsetOf (Type t, string fieldName);
 737
 738                 public static IntPtr OffsetOf<T> (string fieldName) {
 739                         return OffsetOf (typeof (T), fieldName);
 740                 }
 741
 742                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 743                 public extern static void Prelink (MethodInfo m);
 744
 745                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 746                 public extern static void PrelinkAll (Type c);
 747
 748                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 749                 public extern static string PtrToStringAnsi (IntPtr ptr);
 750
 751                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 752                 public extern static string PtrToStringAnsi (IntPtr ptr, int len);
 753
 754                 public static string PtrToStringAuto (IntPtr ptr)
 755                 {
 756                         return SystemDefaultCharSize == 2
 757                                 ? PtrToStringUni (ptr) : PtrToStringAnsi (ptr);
 758                 }
 759
 760                 public static string PtrToStringAuto (IntPtr ptr, int len)
 761                 {
 762                         return SystemDefaultCharSize == 2
 763                                 ? PtrToStringUni (ptr, len) : PtrToStringAnsi (ptr, len);
 764                 }
 765
 766                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 767                 public extern static string PtrToStringUni (IntPtr ptr);
 768
 769                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 770                 public extern static string PtrToStringUni (IntPtr ptr, int len);
 771
 772 #if !MOBILE
 773                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 774                 public extern static string PtrToStringBSTR (IntPtr ptr);
 775 #else
 776                 public static string PtrToStringBSTR (IntPtr ptr)
 777                 {
 778                         throw new NotImplementedException ();
 779                 }
 780 #endif
 781
 782                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 783                 [ComVisible (true)]
 784                 public extern static void PtrToStructure (IntPtr ptr, object structure);
 785
 786                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 787                 [ComVisible (true)]
 788                 public extern static object PtrToStructure (IntPtr ptr, Type structureType);
 789
 790                 public static void PtrToStructure<T> (IntPtr ptr, T structure) {
 791                         PtrToStructure (ptr, (object)structure);
 792                 }
 793
 794                 public static T PtrToStructure<T> (IntPtr ptr) {
 795                         return (T) PtrToStructure (ptr, typeof (T));
 796                 }
 797
 798 #if !MOBILE
 799                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 800                 private extern static int QueryInterfaceInternal (IntPtr pUnk, ref Guid iid, out IntPtr ppv);
 801 #endif
 802
 803                 public static int QueryInterface (IntPtr pUnk, ref Guid iid, out IntPtr ppv)
 804                 {
 805 #if !MOBILE
 806                         if (pUnk == IntPtr.Zero)
 807                                 throw new ArgumentException ("Value cannot be null.", "pUnk");
 808                         return QueryInterfaceInternal (pUnk, ref iid, out ppv);
 809 #else
 810                         throw new NotImplementedException ();
 811 #endif
 812                 }
 813
 814                 public static byte ReadByte (IntPtr ptr)
 815                 {
 816                         unsafe {
 817                                 return *(byte*)ptr;
 818                         }
 819                 }
 820
 821                 public static byte ReadByte (IntPtr ptr, int ofs) {
 822                         unsafe {
 823                                 return *((byte*)ptr + ofs);
 824                         }
 825                 }
 826
 827                 [MonoTODO]
 828                 [SuppressUnmanagedCodeSecurity]
 829                 public static byte ReadByte ([In, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs)
 830                 {
 831                         throw new NotImplementedException ();
 832                 }
 833
 834                 public unsafe static short ReadInt16 (IntPtr ptr)
 835                 {
 836                         byte *addr = (byte *) ptr;
 837
 838                         // The mono JIT can't inline this due to the hight number of calls
 839                         // return ReadInt16 (ptr, 0);
 840
 841                         if (((uint)addr & 1) == 0)
 842                                 return *(short*)addr;
 843
 844                         short s;
 845                         Buffer.Memcpy ((byte*)&s, (byte*)ptr, 2);
 846                         return s;
 847                 }
 848
 849                 public unsafe static short ReadInt16 (IntPtr ptr, int ofs)
 850                 {
 851                         byte *addr = ((byte *) ptr) + ofs;
 852
 853                         if (((uint) addr & 1) == 0)
 854                                 return *(short*)addr;
 855
 856                         short s;
 857                         Buffer.Memcpy ((byte*)&s, addr, 2);
 858                         return s;
 859                 }
 860
 861                 [MonoTODO]
 862                 [SuppressUnmanagedCodeSecurity]
 863                 public static short ReadInt16 ([In, MarshalAs(UnmanagedType.AsAny)] object ptr, int ofs)
 864                 {
 865                         throw new NotImplementedException ();
 866                 }
 867
 868                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 869                 public unsafe static int ReadInt32 (IntPtr ptr)
 870                 {
 871                         byte *addr = (byte *) ptr;
 872
 873                         if (((uint)addr & 3) == 0)
 874                                 return *(int*)addr;
 875
 876                         int s;
 877                         Buffer.Memcpy ((byte*)&s, addr, 4);
 878                         return s;
 879                 }
 880
 881                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 882                 public unsafe static int ReadInt32 (IntPtr ptr, int ofs)
 883                 {
 884                         byte *addr = ((byte *) ptr) + ofs;
 885
 886                         if ((((int) addr) & 3) == 0)
 887                                 return *(int*)addr;
 888                         else {
 889                                 int s;
 890                                 Buffer.Memcpy ((byte*)&s, addr, 4);
 891                                 return s;
 892                         }
 893                 }
 894
 895                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 896                 [MonoTODO]
 897                 [SuppressUnmanagedCodeSecurity]
 898                 public static int ReadInt32 ([In, MarshalAs(UnmanagedType.AsAny)] object ptr, int ofs)
 899                 {
 900                         throw new NotImplementedException ();
 901                 }
 902
 903                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 904                 public unsafe static long ReadInt64 (IntPtr ptr)
 905                 {
 906                         byte *addr = (byte *) ptr;
 907
 908                         // The real alignment might be 4 on some platforms, but this is just an optimization,
 909                         // so it doesn't matter.
 910                         if (((uint) addr & 7) == 0)
 911                                 return *(long*)ptr;
 912
 913                         long s;
 914                         Buffer.Memcpy ((byte*)&s, addr, 8);
 915                         return s;
 916                 }
 917
 918                 public unsafe static long ReadInt64 (IntPtr ptr, int ofs)
 919                 {
 920                         byte *addr = ((byte *) ptr) + ofs;
 921
 922                         if (((uint) addr & 7) == 0)
 923                                 return *(long*)addr;
 924
 925                         long s;
 926                         Buffer.Memcpy ((byte*)&s, addr, 8);
 927                         return s;
 928                 }
 929
 930                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 931                 [MonoTODO]
 932                 [SuppressUnmanagedCodeSecurity]
 933                 public static long ReadInt64 ([In, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs)
 934                 {
 935                         throw new NotImplementedException ();
 936                 }
 937
 938                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 939                 public static IntPtr ReadIntPtr (IntPtr ptr)
 940                 {
 941                         if (IntPtr.Size == 4)
 942                                 return (IntPtr)ReadInt32 (ptr);
 943                         else
 944                                 return (IntPtr)ReadInt64 (ptr);
 945                 }
 946
 947                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 948                 public static IntPtr ReadIntPtr (IntPtr ptr, int ofs)
 949                 {
 950                         if (IntPtr.Size == 4)
 951                                 return (IntPtr)ReadInt32 (ptr, ofs);
 952                         else
 953                                 return (IntPtr)ReadInt64 (ptr, ofs);
 954                 }
 955
 956                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 957                 [MonoTODO]
 958                 public static IntPtr ReadIntPtr ([In, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs)
 959                 {
 960                         throw new NotImplementedException ();
 961                 }
 962
 963                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 964                 public extern static IntPtr ReAllocCoTaskMem (IntPtr pv, int cb);
 965
 966                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 967                 public extern static IntPtr ReAllocHGlobal (IntPtr pv, IntPtr cb);
 968
 969 #if !MOBILE
 970                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 971                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 972                 private extern static int ReleaseInternal (IntPtr pUnk);
 973 #endif
 974
 975                 [ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
 976                 public static int Release (IntPtr pUnk)
 977                 {
 978 #if !MOBILE
 979                         if (pUnk == IntPtr.Zero)
 980                                 throw new ArgumentException ("Value cannot be null.", "pUnk");
 981
 982                         return ReleaseInternal (pUnk);
 983 #else
 984                         throw new NotImplementedException ();
 985 #endif
 986                 }
 987
 988 #if !FULL_AOT_RUNTIME
 989                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 990                 private extern static int ReleaseComObjectInternal (object co);
 991 #endif
 992
 993                 public static int ReleaseComObject (object o)
 994                 {
 995 #if FULL_AOT_RUNTIME
 996                         throw new PlatformNotSupportedException ();
 997 #else
 998                         if (o == null)
 999                                 throw new ArgumentException ("Value cannot be null.", "o");
1000                         if (!IsComObject (o))
1001                                 throw new ArgumentException ("Value must be a Com object.", "o");
1002                         return ReleaseComObjectInternal (o);
1003 #endif
1004                 }
1005
1006 #if !FULL_AOT_RUNTIME
1007                 [Obsolete]
1008                 [MonoTODO]
1009                 public static void ReleaseThreadCache()
1010                 {
1011                         throw new NotImplementedException ();
1012                 }
1013
1014                 [MonoNotSupportedAttribute ("MSDN states user code should never need to call this method.")]
1015                 public static bool SetComObjectData (object obj, object key, object data)
1016                 {
1017                         throw new NotSupportedException ("MSDN states user code should never need to call this method.");
1018                 }
1019 #endif
1020
1021                 [ComVisible (true)]
1022                 public static int SizeOf (object structure)
1023                 {
1024                         return SizeOf (structure.GetType ());
1025                 }
1026
1027                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1028                 public extern static int SizeOf (Type t);
1029
1030                 public static int SizeOf<T> () {
1031                         return SizeOf (typeof (T));
1032                 }
1033
1034                 public static int SizeOf<T> (T structure) {
1035                         return SizeOf (structure.GetType ());
1036                 }
1037
1038                 internal static uint SizeOfType (Type type)
1039                 {
1040                         return (uint) SizeOf (type);
1041                 }
1042
1043                 internal static uint AlignedSizeOf<T> () where T : struct
1044                 {
1045                         uint size = SizeOfType (typeof (T));
1046                         if (size == 1 || size == 2)
1047                                 return size;
1048                         if (IntPtr.Size == 8 && size == 4)
1049                                 return size;
1050                         return (size + 3) & (~((uint)3));
1051                 }
1052
1053                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1054                 public extern static IntPtr StringToBSTR (string s);
1055
1056                 //
1057                 // I believe this is wrong, because in Mono and in P/Invoke
1058                 // we treat "Ansi" conversions as UTF-8 conversions, while
1059                 // this one does not do this
1060                 //
1061                 public static IntPtr StringToCoTaskMemAnsi (string s)
1062                 {
1063                         int length = s.Length + 1;
1064                         IntPtr ctm = AllocCoTaskMem (length);
1065
1066                         byte[] asBytes = new byte[length];
1067                         for (int i = 0; i < s.Length; i++)
1068                                 asBytes[i] = (byte)s[i];
1069                         asBytes[s.Length] = 0;
1070
1071                         copy_to_unmanaged (asBytes, 0, ctm, length);
1072                         return ctm;
1073                 }
1074
1075                 public static IntPtr StringToCoTaskMemAuto (string s)
1076                 {
1077                         return SystemDefaultCharSize == 2
1078                                 ? StringToCoTaskMemUni (s) : StringToCoTaskMemAnsi (s);
1079                 }
1080
1081                 public static IntPtr StringToCoTaskMemUni (string s)
1082                 {
1083                         int length = s.Length + 1;
1084                         IntPtr ctm = AllocCoTaskMem (length * 2);
1085
1086                         char[] asChars = new char[length];
1087                         s.CopyTo (0, asChars, 0, s.Length);
1088                         asChars[s.Length] = '\0';
1089
1090                         copy_to_unmanaged (asChars, 0, ctm, length);
1091                         return ctm;
1092                 }
1093
1094                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1095                 public extern static IntPtr StringToHGlobalAnsi (string s);
1096
1097                 public static IntPtr StringToHGlobalAuto (string s)
1098                 {
1099                         return SystemDefaultCharSize == 2
1100                                 ? StringToHGlobalUni (s) : StringToHGlobalAnsi (s);
1101                 }
1102
1103                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1104                 public extern static IntPtr StringToHGlobalUni (string s);
1105
1106                 public static IntPtr SecureStringToBSTR (SecureString s)
1107                 {
1108                         if (s == null)
1109                                 throw new ArgumentNullException ("s");
1110
1111                         byte[] buffer = s.GetBuffer ();
1112                         int len = s.Length;
1113
1114                         // SecureString doesn't take endian-ness into account.
1115                         // Therefore swap bytes here before we send it to c-side if little-endian.
1116                         if (BitConverter.IsLittleEndian) {
1117                                 for (int i = 0; i < buffer.Length; i += 2) {
1118                                         byte b = buffer[i];
1119                                         buffer[i] = buffer[i + 1];
1120                                         buffer[i + 1] = b;
1121                                 }
1122                         }
1123                         return BufferToBSTR (buffer, len);
1124         }
1125
1126                 public static IntPtr SecureStringToCoTaskMemAnsi (SecureString s)
1127                 {
1128                         if (s == null)
1129                                 throw new ArgumentNullException ("s");
1130                         int len = s.Length;
1131                         IntPtr ctm = AllocCoTaskMem (len + 1);
1132                         byte [] copy = new byte [len+1];
1133
1134                         try {
1135                                 byte [] buffer = s.GetBuffer ();
1136                                 int i = 0, j = 0;
1137                                 for (; i < len; i++, j += 2){
1138                                         copy [i] = buffer [j+1];
1139                                         buffer [j] = 0;
1140                                         buffer [j+1] = 0;
1141                                 }
1142                                 copy [i] = 0;
1143                                 copy_to_unmanaged (copy, 0, ctm, len+1);
1144                         } finally {
1145                                 // Ensure that we clear the buffer.
1146                                 for (int i = len; i > 0; ){
1147                                         i--;
1148                                         copy [i] = 0;
1149                                 }
1150                         }
1151                         return ctm;
1152                 }
1153
1154                 public static IntPtr SecureStringToCoTaskMemUnicode (SecureString s)
1155                 {
1156                         if (s == null)
1157                                 throw new ArgumentNullException ("s");
1158                         int len = s.Length;
1159                         IntPtr ctm = AllocCoTaskMem (len * 2 + 2);
1160                         byte [] buffer = null;
1161                         try {
1162                                 buffer = s.GetBuffer ();
1163                                 for (int i = 0; i < len; i++)
1164                                         WriteInt16 (ctm, i * 2, (short) ((buffer [(i*2)] << 8) | (buffer [i*2+1])));
1165                                 WriteInt16 (ctm, buffer.Length, 0);
1166                         } finally {
1167                                 if (buffer != null)
1168                                         for (int i = buffer.Length; i > 0; ){
1169                                                 i--;
1170                                                 buffer [i] = 0;
1171                                         }
1172                         }
1173                         return ctm;
1174                 }
1175
1176                 public static IntPtr SecureStringToGlobalAllocAnsi (SecureString s)
1177                 {
1178                         if (s == null)
1179                                 throw new ArgumentNullException ("s");
1180                         return SecureStringToCoTaskMemAnsi (s);
1181                 }
1182
1183                 public static IntPtr SecureStringToGlobalAllocUnicode (SecureString s)
1184                 {
1185                         if (s == null)
1186                                 throw new ArgumentNullException ("s");
1187                         return SecureStringToCoTaskMemUnicode (s);
1188                 }
1189
1190                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.MayFail)]
1191                 [ComVisible (true)]
1192                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1193                 public extern static void StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld);
1194
1195                 public static void StructureToPtr<T> (T structure, IntPtr ptr, bool fDeleteOld) {
1196                         StructureToPtr ((object)structure, ptr, fDeleteOld);
1197                 }
1198
1199                 public static void ThrowExceptionForHR (int errorCode) {
1200                         Exception ex = GetExceptionForHR (errorCode);
1201                         if (ex != null)
1202                                 throw ex;
1203                 }
1204
1205                 public static void ThrowExceptionForHR (int errorCode, IntPtr errorInfo) {
1206                         Exception ex = GetExceptionForHR (errorCode, errorInfo);
1207                         if (ex != null)
1208                                 throw ex;
1209                 }
1210
1211
1212                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1213                 public extern static IntPtr BufferToBSTR (Array ptr, int slen);
1214
1215                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1216                 public extern static IntPtr UnsafeAddrOfPinnedArrayElement (Array arr, int index);
1217
1218                 public static IntPtr UnsafeAddrOfPinnedArrayElement<T> (T[] arr, int index) {
1219                         return UnsafeAddrOfPinnedArrayElement ((Array)arr, index);
1220                 }
1221
1222                 public static void WriteByte (IntPtr ptr, byte val)
1223                 {
1224                         unsafe {
1225                                 *(byte*)ptr = val;
1226                         }
1227                 }
1228
1229                 public static void WriteByte (IntPtr ptr, int ofs, byte val) {
1230                         unsafe {
1231                                 *(byte*)(IntPtr.Add (ptr, ofs)) = val;
1232                         }
1233                 }
1234
1235                 [MonoTODO]
1236                 [SuppressUnmanagedCodeSecurity]
1237                 public static void WriteByte ([In, Out, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs, byte val)
1238                 {
1239                         throw new NotImplementedException ();
1240                 }
1241
1242                 public static unsafe void WriteInt16 (IntPtr ptr, short val)
1243                 {
1244                         byte *addr = (byte *) ptr;
1245
1246                         if (((uint)addr & 1) == 0)
1247                                 *(short*)addr = val;
1248                         else
1249                                 Buffer.Memcpy (addr, (byte*)&val, 2);
1250                 }
1251
1252                 public static unsafe void WriteInt16 (IntPtr ptr, int ofs, short val)
1253                 {
1254                         byte *addr = ((byte *) ptr) + ofs;
1255
1256                         if (((uint)addr & 1) == 0)
1257                                 *(short*)addr = val;
1258                         else {
1259                                 Buffer.Memcpy (addr, (byte*)&val, 2);
1260                         }
1261                 }
1262
1263                 [MonoTODO]
1264                 [SuppressUnmanagedCodeSecurity]
1265                 public static void WriteInt16 ([In, Out, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs, short val)
1266                 {
1267                         throw new NotImplementedException ();
1268                 }
1269
1270                 public static void WriteInt16 (IntPtr ptr, char val)
1271                 {
1272                         WriteInt16 (ptr, 0, (short)val);
1273                 }
1274
1275                 public static void WriteInt16 (IntPtr ptr, int ofs, char val)
1276                 {
1277                         WriteInt16 (ptr, ofs, (short)val);
1278                 }
1279
1280                 [MonoTODO]
1281                 public static void WriteInt16([In, Out] object ptr, int ofs, char val)
1282                 {
1283                         throw new NotImplementedException ();
1284                 }
1285
1286                 public static unsafe void WriteInt32 (IntPtr ptr, int val)
1287                 {
1288                         byte *addr = (byte *) ptr;
1289
1290                         if (((uint)addr & 3) == 0)
1291                                 *(int*)addr = val;
1292                         else {
1293                                 Buffer.Memcpy (addr, (byte*)&val, 4);
1294                         }
1295                 }
1296
1297                 public unsafe static void WriteInt32 (IntPtr ptr, int ofs, int val)
1298                 {
1299                         byte *addr = ((byte *) ptr) + ofs;
1300
1301                         if (((uint)addr & 3) == 0)
1302                                 *(int*)addr = val;
1303                         else {
1304                                 Buffer.Memcpy (addr, (byte*)&val, 4);
1305                         }
1306                 }
1307
1308                 [MonoTODO]
1309                 [SuppressUnmanagedCodeSecurity]
1310                 public static void WriteInt32([In, Out, MarshalAs(UnmanagedType.AsAny)] object ptr, int ofs, int val)
1311                 {
1312                         throw new NotImplementedException ();
1313                 }
1314
1315                 public static unsafe void WriteInt64 (IntPtr ptr, long val)
1316                 {
1317                         byte *addr = (byte *) ptr;
1318
1319                         // The real alignment might be 4 on some platforms, but this is just an optimization,
1320                         // so it doesn't matter.
1321                         if (((uint)addr & 7) == 0)
1322                                 *(long*)addr = val;
1323                         else
1324                                 Buffer.Memcpy (addr, (byte*)&val, 8);
1325                 }
1326
1327                 public static unsafe void WriteInt64 (IntPtr ptr, int ofs, long val)
1328                 {
1329                         byte *addr = ((byte *) ptr) + ofs;
1330
1331                         // The real alignment might be 4 on some platforms, but this is just an optimization,
1332                         // so it doesn't matter.
1333                         if (((uint)addr & 7) == 0)
1334                                 *(long*)addr = val;
1335                         else
1336                                 Buffer.Memcpy (addr, (byte*)&val, 8);
1337                 }
1338
1339                 [MonoTODO]
1340                 [SuppressUnmanagedCodeSecurity]
1341                 public static void WriteInt64 ([In, Out, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs, long val)
1342                 {
1343                         throw new NotImplementedException ();
1344                 }
1345
1346                 public static void WriteIntPtr (IntPtr ptr, IntPtr val)
1347                 {
1348                         if (IntPtr.Size == 4)
1349                                 WriteInt32 (ptr, (int)val);
1350                         else
1351                                 WriteInt64 (ptr, (long)val);
1352                 }
1353
1354                 public static void WriteIntPtr (IntPtr ptr, int ofs, IntPtr val)
1355                 {
1356                         if (IntPtr.Size == 4)
1357                                 WriteInt32 (ptr, ofs, (int)val);
1358                         else
1359                                 WriteInt64 (ptr, ofs, (long)val);
1360                 }
1361
1362                 [MonoTODO]
1363                 public static void WriteIntPtr([In, Out, MarshalAs(UnmanagedType.AsAny)] object ptr, int ofs, IntPtr val)
1364                 {
1365                         throw new NotImplementedException ();
1366                 }
1367
1368                 private static Exception ConvertHrToException (int errorCode)
1369                 {
1370                         const int MSEE_E_APPDOMAINUNLOADED = unchecked ((int)0x80131014L);
1371                         const int COR_E_APPLICATION = unchecked ((int)0x80131600L);
1372                         const int E_INVALIDARG = unchecked ((int)0x80070057);
1373                         const int COR_E_ARGUMENTOUTOFRANGE = unchecked ((int)0x80131502L);
1374                         const int COR_E_ARITHMETIC = unchecked ((int)0x80070216);
1375                         const int COR_E_ARRAYTYPEMISMATCH = unchecked ((int)0x80131503L);
1376                         const int COR_E_BADIMAGEFORMAT = unchecked ((int)0x8007000BL);
1377                         const int ERROR_BAD_FORMAT = unchecked ((int)0x0B);
1378                         //const int COR_E_COMEMULATE_ERROR = unchecked ((int)?);
1379                         const int COR_E_CONTEXTMARSHAL = unchecked ((int)0x80131504L);
1380                         //const int COR_E_CORE = unchecked ((int)?);
1381                         const int NTE_FAIL = unchecked ((int)0x80090020L);
1382                         const int COR_E_DIRECTORYNOTFOUND = unchecked ((int)0x80070003L);
1383                         const int ERROR_PATH_NOT_FOUND = unchecked ((int)0x03);
1384                         const int COR_E_DIVIDEBYZERO = unchecked ((int)0x80020012L);
1385                         const int COR_E_DUPLICATEWAITOBJECT = unchecked ((int)0x80131529L);
1386                         const int COR_E_ENDOFSTREAM = unchecked ((int)0x80070026L);
1387                         const int COR_E_TYPELOAD = unchecked ((int)0x80131522L);
1388                         const int COR_E_EXCEPTION = unchecked ((int)0x80131500L);
1389                         const int COR_E_EXECUTIONENGINE = unchecked ((int)0x80131506L);
1390                         const int COR_E_FIELDACCESS = unchecked ((int)0x80131507L);
1391                         const int COR_E_FILENOTFOUND = unchecked ((int)0x80070002L);
1392                         const int ERROR_FILE_NOT_FOUND = unchecked ((int)0x02);
1393                         const int COR_E_FORMAT = unchecked ((int)0x80131537L);
1394                         const int COR_E_INDEXOUTOFRANGE = unchecked ((int)0x80131508L);
1395                         const int COR_E_INVALIDCAST = unchecked ((int)0x80004002L);
1396                         const int COR_E_INVALIDCOMOBJECT = unchecked ((int)0x80131527L);
1397                         const int COR_E_INVALIDFILTERCRITERIA = unchecked ((int)0x80131601L);
1398                         const int COR_E_INVALIDOLEVARIANTTYPE = unchecked ((int)0x80131531L);
1399                         const int COR_E_INVALIDOPERATION = unchecked ((int)0x80131509L);
1400                         const int COR_E_IO = unchecked ((int)0x80131620L);
1401                         const int COR_E_MEMBERACCESS = unchecked ((int)0x8013151AL);
1402                         const int COR_E_METHODACCESS = unchecked ((int)0x80131510L);
1403                         const int COR_E_MISSINGFIELD = unchecked ((int)0x80131511L);
1404                         const int COR_E_MISSINGMANIFESTRESOURCE = unchecked ((int)0x80131532L);
1405                         const int COR_E_MISSINGMEMBER = unchecked ((int)0x80131512L);
1406                         const int COR_E_MISSINGMETHOD = unchecked ((int)0x80131513L);
1407                         const int COR_E_MULTICASTNOTSUPPORTED = unchecked ((int)0x80131514L);
1408                         const int COR_E_NOTFINITENUMBER = unchecked ((int)0x80131528L);
1409                         const int E_NOTIMPL = unchecked ((int)0x80004001L);
1410                         const int COR_E_NOTSUPPORTED = unchecked ((int)0x80131515L);
1411                         const int COR_E_NULLREFERENCE = unchecked ((int)0x80004003L);
1412                         const int E_OUTOFMEMORY = unchecked ((int)0x8007000EL);
1413                         const int COR_E_OVERFLOW = unchecked ((int)0x80131516L);
1414                         const int COR_E_PATHTOOLONG = unchecked ((int)0x800700CEL);
1415                         const int ERROR_FILENAME_EXCED_RANGE = unchecked ((int)0xCE);
1416                         const int COR_E_RANK = unchecked ((int)0x80131517L);
1417                         const int COR_E_REFLECTIONTYPELOAD = unchecked ((int)0x80131602L);
1418                         const int COR_E_REMOTING = unchecked ((int)0x8013150BL);
1419                         const int COR_E_SAFEARRAYTYPEMISMATCH = unchecked ((int)0x80131533L);
1420                         const int COR_E_SECURITY = unchecked ((int)0x8013150AL);
1421                         const int COR_E_SERIALIZATION = unchecked ((int)0x8013150CL);
1422                         const int COR_E_STACKOVERFLOW = unchecked ((int)0x800703E9L);
1423                         const int ERROR_STACK_OVERFLOW = unchecked ((int)0x03E9);
1424                         const int COR_E_SYNCHRONIZATIONLOCK = unchecked ((int)0x80131518L);
1425                         const int COR_E_SYSTEM = unchecked ((int)0x80131501L);
1426                         const int COR_E_TARGET = unchecked ((int)0x80131603L);
1427                         const int COR_E_TARGETINVOCATION = unchecked ((int)0x80131604L);
1428                         const int COR_E_TARGETPARAMCOUNT = unchecked ((int)0x8002000EL);
1429                         const int COR_E_THREADABORTED = unchecked ((int)0x80131530L);
1430                         const int COR_E_THREADINTERRUPTED = unchecked ((int)0x80131519L);
1431                         const int COR_E_THREADSTATE = unchecked ((int)0x80131520L);
1432                         const int COR_E_THREADSTOP = unchecked ((int)0x80131521L);
1433                         const int COR_E_TYPEINITIALIZATION = unchecked ((int)0x80131534L);
1434                         const int COR_E_VERIFICATION = unchecked ((int)0x8013150DL);
1435                         //const int COR_E_WEAKREFERENCE = unchecked ((int)?);
1436                         //const int COR_E_VTABLECALLSNOTSUPPORTED = unchecked ((int));
1437
1438                         switch (errorCode) {
1439                                 case MSEE_E_APPDOMAINUNLOADED:
1440                                         return new AppDomainUnloadedException ();
1441                                 case COR_E_APPLICATION:
1442                                         return new ApplicationException ();
1443                                 case E_INVALIDARG:
1444                                         return new ArgumentException ();
1445                                 case COR_E_ARGUMENTOUTOFRANGE:
1446                                         return new ArgumentOutOfRangeException ();
1447                                 case COR_E_ARITHMETIC:
1448                                         return new ArithmeticException ();
1449                                 case COR_E_ARRAYTYPEMISMATCH:
1450                                         return new ArrayTypeMismatchException ();
1451                                 case COR_E_BADIMAGEFORMAT:
1452                                 case ERROR_BAD_FORMAT:
1453                                         return new BadImageFormatException ();
1454 //                              case COR_E_COMEMULATE_ERROR:
1455 //                                      return new COMEmulateException ();
1456                                 case COR_E_CONTEXTMARSHAL:
1457                                         return new ContextMarshalException ();
1458 //                              case COR_E_CORE:
1459 //                                      return new CoreException ();
1460                                 case NTE_FAIL:
1461                                         return new System.Security.Cryptography.CryptographicException ();
1462                                 case COR_E_DIRECTORYNOTFOUND:
1463                                 case ERROR_PATH_NOT_FOUND:
1464                                         return new System.IO.DirectoryNotFoundException ();
1465                                 case COR_E_DIVIDEBYZERO:
1466                                         return new DivideByZeroException ();
1467                                 case COR_E_DUPLICATEWAITOBJECT:
1468                                         return new DuplicateWaitObjectException ();
1469                                 case COR_E_ENDOFSTREAM:
1470                                         return new System.IO.EndOfStreamException ();
1471                                 case COR_E_EXCEPTION:
1472                                         return new Exception ();
1473                                 case COR_E_EXECUTIONENGINE:
1474                                         return new ExecutionEngineException ();
1475                                 case COR_E_FIELDACCESS:
1476                                         return new FieldAccessException ();
1477                                 case COR_E_FILENOTFOUND:
1478                                 case ERROR_FILE_NOT_FOUND:
1479                                         return new System.IO.FileNotFoundException ();
1480                                 case COR_E_FORMAT:
1481                                         return new FormatException ();
1482                                 case COR_E_INDEXOUTOFRANGE:
1483                                         return new IndexOutOfRangeException ();
1484                                 case COR_E_INVALIDCAST:
1485                                 // E_NOINTERFACE has same value as COR_E_INVALIDCAST
1486                                         return new InvalidCastException ();
1487                                 case COR_E_INVALIDCOMOBJECT:
1488                                         return new InvalidComObjectException ();
1489                                 case COR_E_INVALIDFILTERCRITERIA:
1490                                         return new InvalidFilterCriteriaException ();
1491                                 case COR_E_INVALIDOLEVARIANTTYPE:
1492                                         return new InvalidOleVariantTypeException ();
1493                                 case COR_E_INVALIDOPERATION:
1494                                         return new InvalidOperationException ();
1495                                 case COR_E_IO:
1496                                         return new System.IO.IOException ();
1497                                 case COR_E_MEMBERACCESS:
1498                                         return new MemberAccessException ();
1499                                 case COR_E_METHODACCESS:
1500                                         return new MethodAccessException ();
1501                                 case COR_E_MISSINGFIELD:
1502                                         return new MissingFieldException ();
1503                                 case COR_E_MISSINGMANIFESTRESOURCE:
1504                                         return new System.Resources.MissingManifestResourceException ();
1505                                 case COR_E_MISSINGMEMBER:
1506                                         return new MissingMemberException ();
1507                                 case COR_E_MISSINGMETHOD:
1508                                         return new MissingMethodException ();
1509                                 case COR_E_MULTICASTNOTSUPPORTED:
1510                                         return new MulticastNotSupportedException ();
1511                                 case COR_E_NOTFINITENUMBER:
1512                                         return new NotFiniteNumberException ();
1513                                 case E_NOTIMPL:
1514                                         return new NotImplementedException ();
1515                                 case COR_E_NOTSUPPORTED:
1516                                         return new NotSupportedException ();
1517                                 case COR_E_NULLREFERENCE:
1518                                 // E_POINTER has the same value as COR_E_NULLREFERENCE
1519                                         return new NullReferenceException ();
1520                                 case E_OUTOFMEMORY:
1521                                 // COR_E_OUTOFMEMORY has the same value as E_OUTOFMEMORY
1522                                         return new OutOfMemoryException ();
1523                                 case COR_E_OVERFLOW:
1524                                         return new OverflowException ();
1525                                 case COR_E_PATHTOOLONG:
1526                                 case ERROR_FILENAME_EXCED_RANGE:
1527                                         return new System.IO.PathTooLongException ();
1528                                 case COR_E_RANK:
1529                                         return new RankException ();
1530                                 case COR_E_REFLECTIONTYPELOAD:
1531                                         return new System.Reflection.ReflectionTypeLoadException (new Type[] { }, new Exception[] { });
1532                                 case COR_E_REMOTING:
1533                                         return new System.Runtime.Remoting.RemotingException ();
1534                                 case COR_E_SAFEARRAYTYPEMISMATCH:
1535                                         return new SafeArrayTypeMismatchException ();
1536                                 case COR_E_SECURITY:
1537                                         return new SecurityException ();
1538                                 case COR_E_SERIALIZATION:
1539                                         return new System.Runtime.Serialization.SerializationException ();
1540                                 case COR_E_STACKOVERFLOW:
1541                                 case ERROR_STACK_OVERFLOW:
1542                                         return new StackOverflowException ();
1543                                 case COR_E_SYNCHRONIZATIONLOCK:
1544                                         return new SynchronizationLockException ();
1545                                 case COR_E_SYSTEM:
1546                                         return new SystemException ();
1547                                 case COR_E_TARGET:
1548                                         return new TargetException ();
1549                                 case COR_E_TARGETINVOCATION:
1550                                         return new System.Reflection.TargetInvocationException (null);
1551                                 case COR_E_TARGETPARAMCOUNT:
1552                                         return new TargetParameterCountException ();
1553 //                              case COR_E_THREADABORTED:
1554 //                                      ThreadAbortException c'tor is inaccessible
1555 //                                      return new System.Threading.ThreadAbortException ();
1556                                 case COR_E_THREADINTERRUPTED:
1557                                         return new ThreadInterruptedException ();
1558                                 case COR_E_THREADSTATE:
1559                                         return new ThreadStateException ();
1560 //                              case COR_E_THREADSTOP:
1561 //                                      ThreadStopException does not exist
1562 //                                      return new System.Threading.ThreadStopException ();
1563                                 case COR_E_TYPELOAD:
1564                                         return new TypeLoadException ();
1565                                 // MSDN lists COR_E_TYPELOAD twice with different exceptions.
1566                                 // return new EntryPointNotFoundException ();
1567                                 case COR_E_TYPEINITIALIZATION:
1568                                         return new TypeInitializationException("", null);
1569                                 case COR_E_VERIFICATION:
1570                                         return new VerificationException ();
1571 //                              case COR_E_WEAKREFERENCE:
1572 //                                      return new WeakReferenceException ();
1573 //                              case COR_E_VTABLECALLSNOTSUPPORTED:
1574 //                                      return new VTableCallsNotSupportedException ();
1575                         }
1576                         if (errorCode < 0)
1577                                 return new COMException ("", errorCode);
1578                         return null;
1579                 }
1580
1581 #if FEATURE_COMINTEROP
1582                 [DllImport ("oleaut32.dll", CharSet=CharSet.Unicode, EntryPoint = "SetErrorInfo")]
1583                 static extern int _SetErrorInfo (int dwReserved,
1584                         [MarshalAs(UnmanagedType.Interface)] IErrorInfo pIErrorInfo);
1585
1586                 [DllImport ("oleaut32.dll", CharSet=CharSet.Unicode, EntryPoint = "GetErrorInfo")]
1587                 static extern int _GetErrorInfo (int dwReserved,
1588                         [MarshalAs(UnmanagedType.Interface)] out IErrorInfo ppIErrorInfo);
1589
1590                 static bool SetErrorInfoNotAvailable;
1591                 static bool GetErrorInfoNotAvailable;
1592
1593                 internal static int SetErrorInfo (int dwReserved, IErrorInfo errorInfo)
1594                 {
1595                         int retVal = 0;
1596                         errorInfo = null;
1597
1598                         if (SetErrorInfoNotAvailable)
1599                                 return -1;
1600
1601                         try {
1602                                 retVal = _SetErrorInfo (dwReserved, errorInfo);
1603                         }
1604                         catch (Exception) {
1605                                 // ignore any exception - probably there's no suitable SetErrorInfo
1606                                 // method available.
1607                                 SetErrorInfoNotAvailable = true;
1608                         }
1609                         return retVal;
1610                 }
1611
1612                 internal static int GetErrorInfo (int dwReserved, out IErrorInfo errorInfo)
1613                 {
1614                         int retVal = 0;
1615                         errorInfo = null;
1616
1617                         if (GetErrorInfoNotAvailable)
1618                                 return -1;
1619
1620                         try {
1621                                 retVal = _GetErrorInfo (dwReserved, out errorInfo);
1622                         }
1623                         catch (Exception) {
1624                                 // ignore any exception - probably there's no suitable GetErrorInfo
1625                                 // method available.
1626                                 GetErrorInfoNotAvailable = true;
1627                         }
1628                         return retVal;
1629                 }
1630 #endif
1631                 public static Exception GetExceptionForHR (int errorCode)
1632                 {
1633                         return GetExceptionForHR (errorCode, IntPtr.Zero);
1634                 }
1635
1636                 public static Exception GetExceptionForHR (int errorCode, IntPtr errorInfo)
1637                 {
1638 #if FEATURE_COMINTEROP
1639                         IErrorInfo info = null;
1640                         if (errorInfo != (IntPtr)(-1)) {
1641                                 if (errorInfo == IntPtr.Zero) {
1642                                         if (GetErrorInfo (0, out info) != 0) {
1643                                                 info  = null;
1644                                         }
1645                                 } else {
1646                                         info  = Marshal.GetObjectForIUnknown (errorInfo) as IErrorInfo;
1647                                 }
1648                         }
1649
1650                         if (info is ManagedErrorInfo && ((ManagedErrorInfo) info).Exception._HResult == errorCode) {
1651                                 return ((ManagedErrorInfo) info).Exception;
1652                         }
1653
1654                         Exception e = ConvertHrToException (errorCode);
1655                         if (info != null && e != null) {
1656                                 uint helpContext;
1657                                 info.GetHelpContext (out helpContext);
1658                                 string str;
1659                                 info.GetSource (out str);
1660                                 e.Source = str;
1661                                 info.GetDescription (out str);
1662                                 e.SetMessage (str);
1663                                 info.GetHelpFile (out str);
1664
1665                                 if (helpContext == 0) {
1666                                         e.HelpLink = str;
1667                                 } else {
1668                                         e.HelpLink = string.Format ("{0}#{1}", str, helpContext);
1669                                 }
1670                         }
1671                         return e;
1672 #else
1673                         return ConvertHrToException (errorCode);
1674 #endif
1675                 }
1676
1677                 public static int FinalReleaseComObject (object o)
1678                 {
1679                         while (ReleaseComObject (o) != 0);
1680                         return 0;
1681                 }
1682
1683                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1684                 private static extern Delegate GetDelegateForFunctionPointerInternal (IntPtr ptr, Type t);
1685
1686                 public static Delegate GetDelegateForFunctionPointer (IntPtr ptr, Type t)
1687                 {
1688                         if (t == null)
1689                                 throw new ArgumentNullException ("t");
1690                         if (!t.IsSubclassOf (typeof (MulticastDelegate)) || (t == typeof (MulticastDelegate)))
1691                                 throw new ArgumentException ("Type is not a delegate", "t");
1692                         if (t.IsGenericType)
1693                                 throw new ArgumentException ("The specified Type must not be a generic type definition.");
1694                         if (ptr == IntPtr.Zero)
1695                                 throw new ArgumentNullException ("ptr");
1696
1697                         return GetDelegateForFunctionPointerInternal (ptr, t);
1698                 }
1699
1700                 public static TDelegate GetDelegateForFunctionPointer<TDelegate> (IntPtr ptr) {
1701                         return (TDelegate) (object) GetDelegateForFunctionPointer (ptr, typeof (TDelegate));
1702                 }
1703
1704                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1705                 private static extern IntPtr GetFunctionPointerForDelegateInternal (Delegate d);
1706
1707                 public static IntPtr GetFunctionPointerForDelegate (Delegate d)
1708                 {
1709                         if (d == null)
1710                                 throw new ArgumentNullException ("d");
1711
1712                         return GetFunctionPointerForDelegateInternal (d);
1713                 }
1714
1715                 public static IntPtr GetFunctionPointerForDelegate<TDelegate> (TDelegate d) {
1716                         if (d == null)
1717                                 throw new ArgumentNullException ("d");
1718
1719                         return GetFunctionPointerForDelegateInternal ((Delegate)(object)d);
1720                 }
1721
1722                 internal static void SetLastWin32Error (int error)
1723                 {
1724                 }
1725         }
1726 }