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
  41 using System.Runtime.ConstrainedExecution;
  42 #if !FULL_AOT_RUNTIME
  43 using System.Runtime.InteropServices.ComTypes;
  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                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  72                 public extern static IntPtr AllocCoTaskMem (int cb);
  73
  74                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  75                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.MayFail)]
  76                 public extern static IntPtr AllocHGlobal (IntPtr cb);
  77
  78                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.MayFail)]
  79                 public static IntPtr AllocHGlobal (int cb)
  80                 {
  81                         return AllocHGlobal ((IntPtr)cb);
  82                 }
  83
  84                 [MonoTODO]
  85                 public static object BindToMoniker (string monikerName)
  86                 {
  87                         throw new NotImplementedException ();
  88                 }
  89
  90                 [MonoTODO]
  91                 public static void ChangeWrapperHandleStrength (object otp, bool fIsWeak)
  92                 {
  93                         throw new NotImplementedException ();
  94                 }
  95
  96                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  97                 internal extern static void copy_to_unmanaged (Array source, int startIndex,
  98                                                                IntPtr destination, int length);
  99
 100                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 101                 internal extern static void copy_from_unmanaged (IntPtr source, int startIndex,
 102                                                                  Array destination, int length);
 103
 104                 public static void Copy (byte[] source, int startIndex, IntPtr destination, int length)
 105                 {
 106                         copy_to_unmanaged (source, startIndex, destination, length);
 107                 }
 108
 109                 public static void Copy (char[] source, int startIndex, IntPtr destination, int length)
 110                 {
 111                         copy_to_unmanaged (source, startIndex, destination, length);
 112                 }
 113
 114                 public static void Copy (short[] source, int startIndex, IntPtr destination, int length)
 115                 {
 116                         copy_to_unmanaged (source, startIndex, destination, length);
 117                 }
 118
 119                 public static void Copy (int[] source, int startIndex, IntPtr destination, int length)
 120                 {
 121                         copy_to_unmanaged (source, startIndex, destination, length);
 122                 }
 123
 124                 public static void Copy (long[] source, int startIndex, IntPtr destination, int length)
 125                 {
 126                         copy_to_unmanaged (source, startIndex, destination, length);
 127                 }
 128
 129                 public static void Copy (float[] source, int startIndex, IntPtr destination, int length)
 130                 {
 131                         copy_to_unmanaged (source, startIndex, destination, length);
 132                 }
 133
 134                 public static void Copy (double[] source, int startIndex, IntPtr destination, int length)
 135                 {
 136                         copy_to_unmanaged (source, startIndex, destination, length);
 137                 }
 138
 139                 public static void Copy (IntPtr[] source, int startIndex, IntPtr destination, int length)
 140                 {
 141                         copy_to_unmanaged (source, startIndex, destination, length);
 142                 }
 143
 144                 public static void Copy (IntPtr source, byte[] destination, int startIndex, int length)
 145                 {
 146                         copy_from_unmanaged (source, startIndex, destination, length);
 147                 }
 148
 149                 public static void Copy (IntPtr source, char[] destination, int startIndex, int length)
 150                 {
 151                         copy_from_unmanaged (source, startIndex, destination, length);
 152                 }
 153
 154                 public static void Copy (IntPtr source, short[] destination, int startIndex, int length)
 155                 {
 156                         copy_from_unmanaged (source, startIndex, destination, length);
 157                 }
 158
 159                 public static void Copy (IntPtr source, int[] destination, int startIndex, int length)
 160                 {
 161                         copy_from_unmanaged (source, startIndex, destination, length);
 162                 }
 163
 164                 public static void Copy (IntPtr source, long[] destination, int startIndex, int length)
 165                 {
 166                         copy_from_unmanaged (source, startIndex, destination, length);
 167                 }
 168
 169                 public static void Copy (IntPtr source, float[] destination, int startIndex, int length)
 170                 {
 171                         copy_from_unmanaged (source, startIndex, destination, length);
 172                 }
 173
 174                 public static void Copy (IntPtr source, double[] destination, int startIndex, int length)
 175                 {
 176                         copy_from_unmanaged (source, startIndex, destination, length);
 177                 }
 178
 179                 public static void Copy (IntPtr source, IntPtr[] destination, int startIndex, int length)
 180                 {
 181                         copy_from_unmanaged (source, startIndex, destination, length);
 182                 }
 183
 184                 public static IntPtr CreateAggregatedObject (IntPtr pOuter,
 185                                                              object o)
 186                 {
 187                         throw new NotImplementedException ();
 188                 }
 189
 190 #if NET_4_5
 191                 public static IntPtr CreateAggregatedObject<T> (IntPtr pOuter, T o) {
 192                         return CreateAggregatedObject (pOuter, (object)o);
 193                 }
 194 #endif
 195
 196 #if !FULL_AOT_RUNTIME
 197                 public static object CreateWrapperOfType (object o, Type t)
 198                 {
 199                         __ComObject co = o as __ComObject;
 200                         if (co == null)
 201                                 throw new ArgumentException ("o must derive from __ComObject", "o");
 202                         if (t == null)
 203                                 throw new ArgumentNullException ("t");
 204
 205                         Type[] itfs = o.GetType ().GetInterfaces ();
 206                         foreach (Type itf in itfs) {
 207                                 if (itf.IsImport && co.GetInterface (itf) == IntPtr.Zero)
 208                                         throw new InvalidCastException ();
 209                         }
 210
 211                         return ComInteropProxy.GetProxy (co.IUnknown, t).GetTransparentProxy ();
 212                 }
 213
 214 #if NET_4_5
 215                 public static TWrapper CreateWrapperOfType<T, TWrapper> (T o) {
 216                         return (TWrapper)CreateWrapperOfType ((object)o, typeof (TWrapper));
 217                 }
 218 #endif
 219 #endif
 220
 221                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 222                 [ComVisible (true)]
 223                 public extern static void DestroyStructure (IntPtr ptr, Type structuretype);
 224
 225 #if NET_4_5
 226                 public static void DestroyStructure<T> (IntPtr ptr) {
 227                         DestroyStructure (ptr, typeof (T));
 228                 }
 229 #endif
 230
 231                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 232                 public extern static void FreeBSTR (IntPtr ptr);
 233
 234                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 235                 public extern static void FreeCoTaskMem (IntPtr ptr);
 236
 237                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 238                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 239                 public extern static void FreeHGlobal (IntPtr hglobal);
 240
 241                 static void ClearBSTR (IntPtr ptr)
 242                 {
 243                         int len = ReadInt32 (ptr, -4);
 244
 245                         for (int i = 0; i < len; i++)
 246                                 WriteByte (ptr, i, 0);
 247                 }
 248
 249                 public static void ZeroFreeBSTR (IntPtr s)
 250                 {
 251                         ClearBSTR (s);
 252                         FreeBSTR (s);
 253                 }
 254
 255                 static void ClearAnsi (IntPtr ptr)
 256                 {
 257                         for (int i = 0; ReadByte (ptr, i) != 0; i++)
 258                                 WriteByte (ptr, i, 0);
 259                 }
 260
 261                 static void ClearUnicode (IntPtr ptr)
 262                 {
 263                         for (int i = 0; ReadInt16 (ptr, i) != 0; i += 2)
 264                                 WriteInt16 (ptr, i, 0);
 265                 }
 266
 267                 public static void ZeroFreeCoTaskMemAnsi (IntPtr s)
 268                 {
 269                         ClearAnsi (s);
 270                         FreeCoTaskMem (s);
 271                 }
 272
 273                 public static void ZeroFreeCoTaskMemUnicode (IntPtr s)
 274                 {
 275                         ClearUnicode (s);
 276                         FreeCoTaskMem (s);
 277                 }
 278
 279                 public static void ZeroFreeGlobalAllocAnsi (IntPtr s)
 280                 {
 281                         ClearAnsi (s);
 282                         FreeHGlobal (s);
 283                 }
 284
 285                 public static void ZeroFreeGlobalAllocUnicode (IntPtr s)
 286                 {
 287                         ClearUnicode (s);
 288                         FreeHGlobal (s);
 289                 }
 290
 291 #if !FULL_AOT_RUNTIME
 292                 public static Guid GenerateGuidForType (Type type)
 293                 {
 294                         return type.GUID;
 295                 }
 296
 297                 public static string GenerateProgIdForType (Type type)
 298                 {
 299                         IList<CustomAttributeData> attrs = CustomAttributeData.GetCustomAttributes (type);
 300
 301                         foreach (var a in attrs)
 302                         {
 303                                 var dt = a.Constructor.DeclaringType;
 304                                 string name = dt.Name;
 305                                 if (name == "ProgIdAttribute")
 306                                 {
 307                                         var args = a.ConstructorArguments;
 308                                         string text = a.ConstructorArguments[0].Value as string;
 309                                         if (text == null)
 310                                         {
 311                                                 text = string.Empty;
 312                                         }
 313                                         return text;
 314                                 }
 315                         }
 316
 317                         return type.FullName;
 318                 }
 319
 320                 [MonoTODO]
 321                 public static object GetActiveObject (string progID)
 322                 {
 323                         throw new NotImplementedException ();
 324                 }
 325
 326 #if !MOBILE
 327                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 328                 private extern static IntPtr GetCCW (object o, Type T);
 329
 330                 private static IntPtr GetComInterfaceForObjectInternal (object o, Type T)
 331                 {
 332                         if (IsComObject (o))
 333                                 return ((__ComObject)o).GetInterface (T);
 334                         else
 335                                 return GetCCW (o, T);
 336                 }
 337 #endif
 338
 339                 public static IntPtr GetComInterfaceForObject (object o, Type T)
 340                 {
 341 #if !MOBILE
 342                         IntPtr pItf = GetComInterfaceForObjectInternal (o, T);
 343                         AddRef (pItf);
 344                         return pItf;
 345 #else
 346                         throw new NotImplementedException ();
 347 #endif
 348                 }
 349
 350 #if NET_4_5
 351                 public static IntPtr GetComInterfaceForObject<T, TInterface> (T o) {
 352                         return GetComInterfaceForObject ((object)o, typeof (T));
 353                 }
 354 #endif
 355
 356                 [MonoTODO]
 357                 public static IntPtr GetComInterfaceForObjectInContext (object o, Type t)
 358                 {
 359                         throw new NotImplementedException ();
 360                 }
 361
 362                 [MonoNotSupportedAttribute ("MSDN states user code should never need to call this method.")]
 363                 public static object GetComObjectData (object obj, object key)
 364                 {
 365                         throw new NotSupportedException ("MSDN states user code should never need to call this method.");
 366                 }
 367
 368 #if !MOBILE
 369                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 370                 private extern static int GetComSlotForMethodInfoInternal (MemberInfo m);
 371 #endif
 372
 373                 public static int GetComSlotForMethodInfo (MemberInfo m)
 374                 {
 375 #if !MOBILE
 376                         if (m == null)
 377                                 throw new ArgumentNullException ("m");
 378                         if (!(m is MethodInfo))
 379                                 throw new ArgumentException ("The MemberInfo must be an interface method.", "m");
 380                         if (!m.DeclaringType.IsInterface)
 381                                 throw new ArgumentException ("The MemberInfo must be an interface method.", "m");
 382                         return GetComSlotForMethodInfoInternal (m);
 383 #else
 384                         throw new NotImplementedException ();
 385 #endif
 386                 }
 387
 388                 [MonoTODO]
 389                 public static int GetEndComSlot (Type t)
 390                 {
 391                         throw new NotImplementedException ();
 392                 }
 393
 394                 [MonoTODO]
 395                 public static int GetExceptionCode()
 396                 {
 397                         throw new NotImplementedException ();
 398                 }
 399
 400                 [MonoTODO]
 401                 [ComVisible (true)]
 402                 public static IntPtr GetExceptionPointers()
 403                 {
 404                         throw new NotImplementedException ();
 405                 }
 406
 407                 public static IntPtr GetHINSTANCE (Module m)
 408                 {
 409                         if (m == null)
 410                                 throw new ArgumentNullException ("m");
 411
 412                         return m.GetHINSTANCE ();
 413                 }
 414 #endif // !FULL_AOT_RUNTIME
 415
 416 #if !FULL_AOT_RUNTIME
 417                 public static int GetHRForException (Exception e)
 418                 {
 419                         var errorInfo = new ManagedErrorInfo(e);
 420                         SetErrorInfo (0, errorInfo);
 421
 422                         return e.hresult;
 423                 }
 424
 425                 [MonoTODO]
 426                 [ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
 427                 public static int GetHRForLastWin32Error()
 428                 {
 429                         throw new NotImplementedException ();
 430                 }
 431
 432                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 433                 private extern static IntPtr GetIDispatchForObjectInternal (object o);
 434
 435                 public static IntPtr GetIDispatchForObject (object o)
 436                 {
 437                         IntPtr pUnk = GetIDispatchForObjectInternal (o);
 438                         // Internal method does not AddRef
 439                         AddRef (pUnk);
 440                         return pUnk;
 441                 }
 442
 443                 [MonoTODO]
 444                 public static IntPtr GetIDispatchForObjectInContext (object o)
 445                 {
 446                         throw new NotImplementedException ();
 447                 }
 448
 449                 [MonoTODO]
 450                 public static IntPtr GetITypeInfoForType (Type t)
 451                 {
 452                         throw new NotImplementedException ();
 453                 }
 454
 455                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 456                 private extern static IntPtr GetIUnknownForObjectInternal (object o);
 457
 458                 public static IntPtr GetIUnknownForObject (object o)
 459                 {
 460                         IntPtr pUnk = GetIUnknownForObjectInternal (o);
 461                         // Internal method does not AddRef
 462                         AddRef (pUnk);
 463                         return pUnk;
 464                 }
 465
 466                 [MonoTODO]
 467                 public static IntPtr GetIUnknownForObjectInContext (object o)
 468                 {
 469                         throw new NotImplementedException ();
 470                 }
 471
 472                 [MonoTODO]
 473                 [Obsolete ("This method has been deprecated")]
 474                 public static IntPtr GetManagedThunkForUnmanagedMethodPtr (IntPtr pfnMethodToWrap, IntPtr pbSignature, int cbSignature)
 475                 {
 476                         throw new NotImplementedException ();
 477                 }
 478
 479                 [MonoTODO]
 480                 public static MemberInfo GetMethodInfoForComSlot (Type t, int slot, ref ComMemberType memberType)
 481                 {
 482                         throw new NotImplementedException ();
 483                 }
 484
 485                 public static void GetNativeVariantForObject (object obj, IntPtr pDstNativeVariant)
 486                 {
 487                         Variant vt = new Variant();
 488                         vt.SetValue(obj);
 489                         Marshal.StructureToPtr(vt, pDstNativeVariant, false);
 490                 }
 491
 492 #if NET_4_5
 493                 public static void GetNativeVariantForObject<T> (T obj, IntPtr pDstNativeVariant) {
 494                         GetNativeVariantForObject ((object)obj, pDstNativeVariant);
 495                 }
 496 #endif
 497
 498 #if !MOBILE
 499                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 500                 private static extern object GetObjectForCCW (IntPtr pUnk);
 501 #endif
 502
 503                 public static object GetObjectForIUnknown (IntPtr pUnk)
 504                 {
 505 #if !MOBILE
 506                         object obj = GetObjectForCCW (pUnk);
 507                         // was not a CCW
 508                         if (obj == null) {
 509                                 ComInteropProxy proxy = ComInteropProxy.GetProxy (pUnk, typeof (__ComObject));
 510                                 obj = proxy.GetTransparentProxy ();
 511                         }
 512                         return obj;
 513 #else
 514                         throw new NotImplementedException ();
 515 #endif
 516                 }
 517
 518                 public static object GetObjectForNativeVariant (IntPtr pSrcNativeVariant)
 519                 {
 520                         Variant vt = (Variant)Marshal.PtrToStructure(pSrcNativeVariant, typeof(Variant));
 521                         return vt.GetValue();
 522                 }
 523
 524 #if NET_4_5
 525                 public static T GetObjectForNativeVariant<T> (IntPtr pSrcNativeVariant) {
 526                         Variant vt = (Variant)Marshal.PtrToStructure(pSrcNativeVariant, typeof(Variant));
 527                         return (T)vt.GetValue();
 528                 }
 529 #endif
 530
 531                 public static object[] GetObjectsForNativeVariants (IntPtr aSrcNativeVariant, int cVars)
 532                 {
 533                         if (cVars < 0)
 534                                 throw new ArgumentOutOfRangeException ("cVars", "cVars cannot be a negative number.");
 535                         object[] objects = new object[cVars];
 536                         for (int i = 0; i < cVars; i++)
 537                                 objects[i] = GetObjectForNativeVariant ((IntPtr)(aSrcNativeVariant.ToInt64 () +
 538                                         i * SizeOf (typeof(Variant))));
 539                         return objects;
 540                 }
 541
 542 #if NET_4_5
 543                 public static T[] GetObjectsForNativeVariants<T> (IntPtr aSrcNativeVariant, int cVars) {
 544                         if (cVars < 0)
 545                                 throw new ArgumentOutOfRangeException ("cVars", "cVars cannot be a negative number.");
 546                         T[] objects = new T[cVars];
 547                         for (int i = 0; i < cVars; i++)
 548                                 objects[i] = GetObjectForNativeVariant<T> ((IntPtr)(aSrcNativeVariant.ToInt64 () +
 549                                         i * SizeOf (typeof(Variant))));
 550                         return objects;
 551                 }
 552 #endif
 553
 554                 [MonoTODO]
 555                 public static int GetStartComSlot (Type t)
 556                 {
 557                         throw new NotImplementedException ();
 558                 }
 559
 560                 [MonoTODO]
 561                 [Obsolete ("This method has been deprecated")]
 562                 public static Thread GetThreadFromFiberCookie (int cookie)
 563                 {
 564                         throw new NotImplementedException ();
 565                 }
 566
 567                 public static object GetTypedObjectForIUnknown (IntPtr pUnk, Type t)
 568                 {
 569                         ComInteropProxy proxy = new ComInteropProxy (pUnk, t);
 570                         __ComObject co = (__ComObject)proxy.GetTransparentProxy ();
 571                         foreach (Type itf in t.GetInterfaces ()) {
 572                                 if ((itf.Attributes & TypeAttributes.Import) == TypeAttributes.Import) {
 573                                         if (co.GetInterface (itf) == IntPtr.Zero)
 574                                                 return null;
 575                                 }
 576                         }
 577                         return co;
 578                 }
 579
 580                 [MonoTODO]
 581                 public static Type GetTypeForITypeInfo (IntPtr piTypeInfo)
 582                 {
 583                         throw new NotImplementedException ();
 584                 }
 585
 586 #if NET_4_5
 587                 public static Type GetTypeFromCLSID (Guid clsid)
 588                 {
 589                         throw new NotImplementedException ();
 590                 }
 591 #endif
 592
 593 #if !FULL_AOT_RUNTIME
 594                 [Obsolete]
 595                 [MonoTODO]
 596                 public static string GetTypeInfoName (UCOMITypeInfo pTI)
 597                 {
 598                         throw new NotImplementedException ();
 599                 }
 600
 601                 public static string GetTypeInfoName (ITypeInfo typeInfo)
 602                 {
 603                         throw new NotImplementedException ();
 604                 }
 605
 606                 [Obsolete]
 607                 [MonoTODO]
 608                 public static Guid GetTypeLibGuid (UCOMITypeLib pTLB)
 609                 {
 610                         throw new NotImplementedException ();
 611                 }
 612
 613                 [MonoTODO]
 614                 public static Guid GetTypeLibGuid (ITypeLib typelib)
 615                 {
 616                         throw new NotImplementedException ();
 617                 }
 618
 619                 [MonoTODO]
 620                 public static Guid GetTypeLibGuidForAssembly (Assembly asm)
 621                 {
 622                         throw new NotImplementedException ();
 623                 }
 624
 625                 [Obsolete]
 626                 [MonoTODO]
 627                 public static int GetTypeLibLcid (UCOMITypeLib pTLB)
 628                 {
 629                         throw new NotImplementedException ();
 630                 }
 631
 632                 [MonoTODO]
 633                 public static int GetTypeLibLcid (ITypeLib typelib)
 634                 {
 635                         throw new NotImplementedException ();
 636                 }
 637
 638                 [Obsolete]
 639                 [MonoTODO]
 640                 public static string GetTypeLibName (UCOMITypeLib pTLB)
 641                 {
 642                         throw new NotImplementedException ();
 643                 }
 644
 645                 [MonoTODO]
 646                 public static string GetTypeLibName (ITypeLib typelib)
 647                 {
 648                         throw new NotImplementedException ();
 649                 }
 650
 651                 [MonoTODO]
 652                 public static void GetTypeLibVersionForAssembly (Assembly inputAssembly, out int majorVersion, out int minorVersion)
 653                 {
 654                         throw new NotImplementedException ();
 655                 }
 656
 657                 public static object GetUniqueObjectForIUnknown (IntPtr unknown)
 658                 {
 659                         throw new NotImplementedException ();
 660                 }
 661 #endif
 662
 663                 [MonoTODO]
 664                 [Obsolete ("This method has been deprecated")]
 665                 public static IntPtr GetUnmanagedThunkForManagedMethodPtr (IntPtr pfnMethodToWrap, IntPtr pbSignature, int cbSignature)
 666                 {
 667                         throw new NotImplementedException ();
 668                 }
 669
 670 #if !MOBILE
 671                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 672                 public extern static bool IsComObject (object o);
 673 #else
 674                 public static bool IsComObject (object o)
 675                 {
 676                         throw new NotImplementedException ();
 677                 }
 678 #endif
 679
 680                 [MonoTODO]
 681                 public static bool IsTypeVisibleFromCom (Type t)
 682                 {
 683                         throw new NotImplementedException ();
 684                 }
 685
 686                 [MonoTODO]
 687                 public static int NumParamBytes (MethodInfo m)
 688                 {
 689                         throw new NotImplementedException ();
 690                 }
 691 #endif
 692
 693                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 694                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 695                 public static extern int GetLastWin32Error();
 696
 697                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 698                 public extern static IntPtr OffsetOf (Type t, string fieldName);
 699
 700 #if NET_4_5
 701                 public static IntPtr OffsetOf<T> (string fieldName) {
 702                         return OffsetOf (typeof (T), fieldName);
 703                 }
 704 #endif
 705
 706                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 707                 public extern static void Prelink (MethodInfo m);
 708
 709                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 710                 public extern static void PrelinkAll (Type c);
 711
 712                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 713                 public extern static string PtrToStringAnsi (IntPtr ptr);
 714
 715                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 716                 public extern static string PtrToStringAnsi (IntPtr ptr, int len);
 717
 718                 public static string PtrToStringAuto (IntPtr ptr)
 719                 {
 720                         return SystemDefaultCharSize == 2
 721                                 ? PtrToStringUni (ptr) : PtrToStringAnsi (ptr);
 722                 }
 723
 724                 public static string PtrToStringAuto (IntPtr ptr, int len)
 725                 {
 726                         return SystemDefaultCharSize == 2
 727                                 ? PtrToStringUni (ptr, len) : PtrToStringAnsi (ptr, len);
 728                 }
 729
 730                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 731                 public extern static string PtrToStringUni (IntPtr ptr);
 732
 733                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 734                 public extern static string PtrToStringUni (IntPtr ptr, int len);
 735
 736 #if !MOBILE
 737                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 738                 public extern static string PtrToStringBSTR (IntPtr ptr);
 739 #else
 740                 public static string PtrToStringBSTR (IntPtr ptr)
 741                 {
 742                         throw new NotImplementedException ();
 743                 }
 744 #endif
 745
 746                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 747                 [ComVisible (true)]
 748                 public extern static void PtrToStructure (IntPtr ptr, object structure);
 749
 750                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 751                 [ComVisible (true)]
 752                 public extern static object PtrToStructure (IntPtr ptr, Type structureType);
 753
 754 #if NET_4_5
 755                 public static void PtrToStructure<T> (IntPtr ptr, T structure) {
 756                         PtrToStructure (ptr, (object)structure);
 757                 }
 758
 759                 public static T PtrToStructure<T> (IntPtr ptr) {
 760                         return (T) PtrToStructure (ptr, typeof (T));
 761                 }
 762 #endif
 763
 764 #if !MOBILE
 765                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 766                 private extern static int QueryInterfaceInternal (IntPtr pUnk, ref Guid iid, out IntPtr ppv);
 767 #endif
 768
 769                 public static int QueryInterface (IntPtr pUnk, ref Guid iid, out IntPtr ppv)
 770                 {
 771 #if !MOBILE
 772                         if (pUnk == IntPtr.Zero)
 773                                 throw new ArgumentException ("Value cannot be null.", "pUnk");
 774                         return QueryInterfaceInternal (pUnk, ref iid, out ppv);
 775 #else
 776                         throw new NotImplementedException ();
 777 #endif
 778                 }
 779
 780                 public static byte ReadByte (IntPtr ptr)
 781                 {
 782                         unsafe {
 783                                 return *(byte*)ptr;
 784                         }
 785                 }
 786
 787                 public static byte ReadByte (IntPtr ptr, int ofs) {
 788                         unsafe {
 789                                 return *((byte*)ptr + ofs);
 790                         }
 791                 }
 792
 793                 [MonoTODO]
 794                 [SuppressUnmanagedCodeSecurity]
 795                 public static byte ReadByte ([In, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs)
 796                 {
 797                         throw new NotImplementedException ();
 798                 }
 799
 800                 public unsafe static short ReadInt16 (IntPtr ptr)
 801                 {
 802                         byte *addr = (byte *) ptr;
 803
 804                         // The mono JIT can't inline this due to the hight number of calls
 805                         // return ReadInt16 (ptr, 0);
 806
 807                         if (((uint)addr & 1) == 0)
 808                                 return *(short*)addr;
 809
 810                         short s;
 811                         String.memcpy ((byte*)&s, (byte*)ptr, 2);
 812                         return s;
 813                 }
 814
 815                 public unsafe static short ReadInt16 (IntPtr ptr, int ofs)
 816                 {
 817                         byte *addr = ((byte *) ptr) + ofs;
 818
 819                         if (((uint) addr & 1) == 0)
 820                                 return *(short*)addr;
 821
 822                         short s;
 823                         String.memcpy ((byte*)&s, addr, 2);
 824                         return s;
 825                 }
 826
 827                 [MonoTODO]
 828                 [SuppressUnmanagedCodeSecurity]
 829                 public static short ReadInt16 ([In, MarshalAs(UnmanagedType.AsAny)] object ptr, int ofs)
 830                 {
 831                         throw new NotImplementedException ();
 832                 }
 833
 834                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 835                 public unsafe static int ReadInt32 (IntPtr ptr)
 836                 {
 837                         byte *addr = (byte *) ptr;
 838
 839                         if (((uint)addr & 3) == 0)
 840                                 return *(int*)addr;
 841
 842                         int s;
 843                         String.memcpy ((byte*)&s, addr, 4);
 844                         return s;
 845                 }
 846
 847                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 848                 public unsafe static int ReadInt32 (IntPtr ptr, int ofs)
 849                 {
 850                         byte *addr = ((byte *) ptr) + ofs;
 851
 852                         if ((((int) addr) & 3) == 0)
 853                                 return *(int*)addr;
 854                         else {
 855                                 int s;
 856                                 String.memcpy ((byte*)&s, addr, 4);
 857                                 return s;
 858                         }
 859                 }
 860
 861                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 862                 [MonoTODO]
 863                 [SuppressUnmanagedCodeSecurity]
 864                 public static int ReadInt32 ([In, MarshalAs(UnmanagedType.AsAny)] object ptr, int ofs)
 865                 {
 866                         throw new NotImplementedException ();
 867                 }
 868
 869                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 870                 public unsafe static long ReadInt64 (IntPtr ptr)
 871                 {
 872                         byte *addr = (byte *) ptr;
 873
 874                         // The real alignment might be 4 on some platforms, but this is just an optimization,
 875                         // so it doesn't matter.
 876                         if (((uint) addr & 7) == 0)
 877                                 return *(long*)ptr;
 878
 879                         long s;
 880                         String.memcpy ((byte*)&s, addr, 8);
 881                         return s;
 882                 }
 883
 884                 public unsafe static long ReadInt64 (IntPtr ptr, int ofs)
 885                 {
 886                         byte *addr = ((byte *) ptr) + ofs;
 887
 888                         if (((uint) addr & 7) == 0)
 889                                 return *(long*)addr;
 890
 891                         long s;
 892                         String.memcpy ((byte*)&s, addr, 8);
 893                         return s;
 894                 }
 895
 896                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 897                 [MonoTODO]
 898                 [SuppressUnmanagedCodeSecurity]
 899                 public static long ReadInt64 ([In, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs)
 900                 {
 901                         throw new NotImplementedException ();
 902                 }
 903
 904                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 905                 public static IntPtr ReadIntPtr (IntPtr ptr)
 906                 {
 907                         if (IntPtr.Size == 4)
 908                                 return (IntPtr)ReadInt32 (ptr);
 909                         else
 910                                 return (IntPtr)ReadInt64 (ptr);
 911                 }
 912
 913                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 914                 public static IntPtr ReadIntPtr (IntPtr ptr, int ofs)
 915                 {
 916                         if (IntPtr.Size == 4)
 917                                 return (IntPtr)ReadInt32 (ptr, ofs);
 918                         else
 919                                 return (IntPtr)ReadInt64 (ptr, ofs);
 920                 }
 921
 922                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 923                 [MonoTODO]
 924                 public static IntPtr ReadIntPtr ([In, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs)
 925                 {
 926                         throw new NotImplementedException ();
 927                 }
 928
 929                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 930                 public extern static IntPtr ReAllocCoTaskMem (IntPtr pv, int cb);
 931
 932                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 933                 public extern static IntPtr ReAllocHGlobal (IntPtr pv, IntPtr cb);
 934
 935 #if !MOBILE
 936                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
 937                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 938                 private extern static int ReleaseInternal (IntPtr pUnk);
 939 #endif
 940
 941                 [ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
 942                 public static int Release (IntPtr pUnk)
 943                 {
 944 #if !MOBILE
 945                         if (pUnk == IntPtr.Zero)
 946                                 throw new ArgumentException ("Value cannot be null.", "pUnk");
 947
 948                         return ReleaseInternal (pUnk);
 949 #else
 950                         throw new NotImplementedException ();
 951 #endif
 952                 }
 953
 954 #if !FULL_AOT_RUNTIME
 955                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 956                 private extern static int ReleaseComObjectInternal (object co);
 957
 958                 public static int ReleaseComObject (object o)
 959                 {
 960                         if (o == null)
 961                                 throw new ArgumentException ("Value cannot be null.", "o");
 962                         if (!IsComObject (o))
 963                                 throw new ArgumentException ("Value must be a Com object.", "o");
 964                         return ReleaseComObjectInternal (o);
 965                 }
 966
 967                 [Obsolete]
 968                 [MonoTODO]
 969                 public static void ReleaseThreadCache()
 970                 {
 971                         throw new NotImplementedException ();
 972                 }
 973
 974                 [MonoNotSupportedAttribute ("MSDN states user code should never need to call this method.")]
 975                 public static bool SetComObjectData (object obj, object key, object data)
 976                 {
 977                         throw new NotSupportedException ("MSDN states user code should never need to call this method.");
 978                 }
 979 #endif
 980
 981                 [ComVisible (true)]
 982                 public static int SizeOf (object structure)
 983                 {
 984                         return SizeOf (structure.GetType ());
 985                 }
 986
 987                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
 988                 public extern static int SizeOf (Type t);
 989
 990 #if NET_4_5
 991                 public static int SizeOf<T> () {
 992                         return SizeOf (typeof (T));
 993                 }
 994
 995                 public static int SizeOf<T> (T structure) {
 996                         return SizeOf (structure.GetType ());
 997                 }
 998 #endif
 999
1000                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1001                 public extern static IntPtr StringToBSTR (string s);
1002
1003                 //
1004                 // I believe this is wrong, because in Mono and in P/Invoke
1005                 // we treat "Ansi" conversions as UTF-8 conversions, while
1006                 // this one does not do this
1007                 //
1008                 public static IntPtr StringToCoTaskMemAnsi (string s)
1009                 {
1010                         int length = s.Length + 1;
1011                         IntPtr ctm = AllocCoTaskMem (length);
1012
1013                         byte[] asBytes = new byte[length];
1014                         for (int i = 0; i < s.Length; i++)
1015                                 asBytes[i] = (byte)s[i];
1016                         asBytes[s.Length] = 0;
1017
1018                         copy_to_unmanaged (asBytes, 0, ctm, length);
1019                         return ctm;
1020                 }
1021
1022                 public static IntPtr StringToCoTaskMemAuto (string s)
1023                 {
1024                         return SystemDefaultCharSize == 2
1025                                 ? StringToCoTaskMemUni (s) : StringToCoTaskMemAnsi (s);
1026                 }
1027
1028                 public static IntPtr StringToCoTaskMemUni (string s)
1029                 {
1030                         int length = s.Length + 1;
1031                         IntPtr ctm = AllocCoTaskMem (length * 2);
1032
1033                         char[] asChars = new char[length];
1034                         s.CopyTo (0, asChars, 0, s.Length);
1035                         asChars[s.Length] = '\0';
1036
1037                         copy_to_unmanaged (asChars, 0, ctm, length);
1038                         return ctm;
1039                 }
1040
1041                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1042                 public extern static IntPtr StringToHGlobalAnsi (string s);
1043
1044                 public static IntPtr StringToHGlobalAuto (string s)
1045                 {
1046                         return SystemDefaultCharSize == 2
1047                                 ? StringToHGlobalUni (s) : StringToHGlobalAnsi (s);
1048                 }
1049
1050                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1051                 public extern static IntPtr StringToHGlobalUni (string s);
1052
1053                 public static IntPtr SecureStringToBSTR (SecureString s)
1054                 {
1055                         if (s == null)
1056                                 throw new ArgumentNullException ("s");
1057                         int len = s.Length;
1058                         IntPtr ctm = AllocCoTaskMem ((len+1) * 2 + 4);
1059                         byte [] buffer = null;
1060                         WriteInt32 (ctm, 0, len*2);
1061                         try {
1062                                 buffer = s.GetBuffer ();
1063
1064                                 for (int i = 0; i < len; i++)
1065                                         WriteInt16 (ctm, 4 + (i * 2), (short) ((buffer [(i*2)] << 8) | (buffer [i*2+1])));
1066                                 WriteInt16 (ctm, 4 + buffer.Length, 0);
1067                         } finally {
1068                                 if (buffer != null)
1069                                         for (int i = buffer.Length; i > 0; ){
1070                                                 i--;
1071                                                 buffer [i] = 0;
1072                                         }
1073                         }
1074                         return (IntPtr) ((long)ctm + 4);
1075                 }
1076
1077                 public static IntPtr SecureStringToCoTaskMemAnsi (SecureString s)
1078                 {
1079                         if (s == null)
1080                                 throw new ArgumentNullException ("s");
1081                         int len = s.Length;
1082                         IntPtr ctm = AllocCoTaskMem (len + 1);
1083                         byte [] copy = new byte [len+1];
1084
1085                         try {
1086                                 byte [] buffer = s.GetBuffer ();
1087                                 int i = 0, j = 0;
1088                                 for (; i < len; i++, j += 2){
1089                                         copy [i] = buffer [j+1];
1090                                         buffer [j] = 0;
1091                                         buffer [j+1] = 0;
1092                                 }
1093                                 copy [i] = 0;
1094                                 copy_to_unmanaged (copy, 0, ctm, len+1);
1095                         } finally {
1096                                 // Ensure that we clear the buffer.
1097                                 for (int i = len; i > 0; ){
1098                                         i--;
1099                                         copy [i] = 0;
1100                                 }
1101                         }
1102                         return ctm;
1103                 }
1104
1105                 public static IntPtr SecureStringToCoTaskMemUnicode (SecureString s)
1106                 {
1107                         if (s == null)
1108                                 throw new ArgumentNullException ("s");
1109                         int len = s.Length;
1110                         IntPtr ctm = AllocCoTaskMem (len * 2 + 2);
1111                         byte [] buffer = null;
1112                         try {
1113                                 buffer = s.GetBuffer ();
1114                                 for (int i = 0; i < len; i++)
1115                                         WriteInt16 (ctm, i * 2, (short) ((buffer [(i*2)] << 8) | (buffer [i*2+1])));
1116                                 WriteInt16 (ctm, buffer.Length, 0);
1117                         } finally {
1118                                 if (buffer != null)
1119                                         for (int i = buffer.Length; i > 0; ){
1120                                                 i--;
1121                                                 buffer [i] = 0;
1122                                         }
1123                         }
1124                         return ctm;
1125                 }
1126
1127                 public static IntPtr SecureStringToGlobalAllocAnsi (SecureString s)
1128                 {
1129                         if (s == null)
1130                                 throw new ArgumentNullException ("s");
1131                         return SecureStringToCoTaskMemAnsi (s);
1132                 }
1133
1134                 public static IntPtr SecureStringToGlobalAllocUnicode (SecureString s)
1135                 {
1136                         if (s == null)
1137                                 throw new ArgumentNullException ("s");
1138                         return SecureStringToCoTaskMemUnicode (s);
1139                 }
1140
1141                 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.MayFail)]
1142                 [ComVisible (true)]
1143                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1144                 public extern static void StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld);
1145
1146 #if NET_4_5
1147                 public static void StructureToPtr<T> (T structure, IntPtr ptr, bool fDeleteOld) {
1148                         StructureToPtr ((object)structure, ptr, fDeleteOld);
1149                 }
1150 #endif
1151
1152                 public static void ThrowExceptionForHR (int errorCode) {
1153                         Exception ex = GetExceptionForHR (errorCode);
1154                         if (ex != null)
1155                                 throw ex;
1156                 }
1157
1158                 public static void ThrowExceptionForHR (int errorCode, IntPtr errorInfo) {
1159                         Exception ex = GetExceptionForHR (errorCode, errorInfo);
1160                         if (ex != null)
1161                                 throw ex;
1162                 }
1163
1164                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1165                 public extern static IntPtr UnsafeAddrOfPinnedArrayElement (Array arr, int index);
1166
1167 #if NET_4_5
1168                 public static IntPtr UnsafeAddrOfPinnedArrayElement<T> (T[] arr, int index) {
1169                         return UnsafeAddrOfPinnedArrayElement ((Array)arr, index);
1170                 }
1171 #endif
1172
1173                 public static void WriteByte (IntPtr ptr, byte val)
1174                 {
1175                         unsafe {
1176                                 *(byte*)ptr = val;
1177                         }
1178                 }
1179
1180                 public static void WriteByte (IntPtr ptr, int ofs, byte val) {
1181                         unsafe {
1182                                 *(byte*)(IntPtr.Add (ptr, ofs)) = val;
1183                         }
1184                 }
1185
1186                 [MonoTODO]
1187                 [SuppressUnmanagedCodeSecurity]
1188                 public static void WriteByte ([In, Out, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs, byte val)
1189                 {
1190                         throw new NotImplementedException ();
1191                 }
1192
1193                 public static unsafe void WriteInt16 (IntPtr ptr, short val)
1194                 {
1195                         byte *addr = (byte *) ptr;
1196
1197                         if (((uint)addr & 1) == 0)
1198                                 *(short*)addr = val;
1199                         else
1200                                 String.memcpy (addr, (byte*)&val, 2);
1201                 }
1202
1203                 public static unsafe void WriteInt16 (IntPtr ptr, int ofs, short val)
1204                 {
1205                         byte *addr = ((byte *) ptr) + ofs;
1206
1207                         if (((uint)addr & 1) == 0)
1208                                 *(short*)addr = val;
1209                         else {
1210                                 String.memcpy (addr, (byte*)&val, 2);
1211                         }
1212                 }
1213
1214                 [MonoTODO]
1215                 [SuppressUnmanagedCodeSecurity]
1216                 public static void WriteInt16 ([In, Out, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs, short val)
1217                 {
1218                         throw new NotImplementedException ();
1219                 }
1220
1221                 public static void WriteInt16 (IntPtr ptr, char val)
1222                 {
1223                         WriteInt16 (ptr, 0, (short)val);
1224                 }
1225
1226                 public static void WriteInt16 (IntPtr ptr, int ofs, char val)
1227                 {
1228                         WriteInt16 (ptr, ofs, (short)val);
1229                 }
1230
1231                 [MonoTODO]
1232                 public static void WriteInt16([In, Out] object ptr, int ofs, char val)
1233                 {
1234                         throw new NotImplementedException ();
1235                 }
1236
1237                 public static unsafe void WriteInt32 (IntPtr ptr, int val)
1238                 {
1239                         byte *addr = (byte *) ptr;
1240
1241                         if (((uint)addr & 3) == 0)
1242                                 *(int*)addr = val;
1243                         else {
1244                                 String.memcpy (addr, (byte*)&val, 4);
1245                         }
1246                 }
1247
1248                 public unsafe static void WriteInt32 (IntPtr ptr, int ofs, int val)
1249                 {
1250                         byte *addr = ((byte *) ptr) + ofs;
1251
1252                         if (((uint)addr & 3) == 0)
1253                                 *(int*)addr = val;
1254                         else {
1255                                 String.memcpy (addr, (byte*)&val, 4);
1256                         }
1257                 }
1258
1259                 [MonoTODO]
1260                 [SuppressUnmanagedCodeSecurity]
1261                 public static void WriteInt32([In, Out, MarshalAs(UnmanagedType.AsAny)] object ptr, int ofs, int val)
1262                 {
1263                         throw new NotImplementedException ();
1264                 }
1265
1266                 public static unsafe void WriteInt64 (IntPtr ptr, long val)
1267                 {
1268                         byte *addr = (byte *) ptr;
1269
1270                         // The real alignment might be 4 on some platforms, but this is just an optimization,
1271                         // so it doesn't matter.
1272                         if (((uint)addr & 7) == 0)
1273                                 *(long*)addr = val;
1274                         else
1275                                 String.memcpy (addr, (byte*)&val, 8);
1276                 }
1277
1278                 public static unsafe void WriteInt64 (IntPtr ptr, int ofs, long val)
1279                 {
1280                         byte *addr = ((byte *) ptr) + ofs;
1281
1282                         // The real alignment might be 4 on some platforms, but this is just an optimization,
1283                         // so it doesn't matter.
1284                         if (((uint)addr & 7) == 0)
1285                                 *(long*)addr = val;
1286                         else
1287                                 String.memcpy (addr, (byte*)&val, 8);
1288                 }
1289
1290                 [MonoTODO]
1291                 [SuppressUnmanagedCodeSecurity]
1292                 public static void WriteInt64 ([In, Out, MarshalAs (UnmanagedType.AsAny)] object ptr, int ofs, long val)
1293                 {
1294                         throw new NotImplementedException ();
1295                 }
1296
1297                 public static void WriteIntPtr (IntPtr ptr, IntPtr val)
1298                 {
1299                         if (IntPtr.Size == 4)
1300                                 WriteInt32 (ptr, (int)val);
1301                         else
1302                                 WriteInt64 (ptr, (long)val);
1303                 }
1304
1305                 public static void WriteIntPtr (IntPtr ptr, int ofs, IntPtr val)
1306                 {
1307                         if (IntPtr.Size == 4)
1308                                 WriteInt32 (ptr, ofs, (int)val);
1309                         else
1310                                 WriteInt64 (ptr, ofs, (long)val);
1311                 }
1312
1313                 [MonoTODO]
1314                 public static void WriteIntPtr([In, Out, MarshalAs(UnmanagedType.AsAny)] object ptr, int ofs, IntPtr val)
1315                 {
1316                         throw new NotImplementedException ();
1317                 }
1318
1319                 private static Exception ConvertHrToException (int errorCode)
1320                 {
1321                         const int MSEE_E_APPDOMAINUNLOADED = unchecked ((int)0x80131014L);
1322                         const int COR_E_APPLICATION = unchecked ((int)0x80131600L);
1323                         const int E_INVALIDARG = unchecked ((int)0x80070057);
1324                         const int COR_E_ARGUMENTOUTOFRANGE = unchecked ((int)0x80131502L);
1325                         const int COR_E_ARITHMETIC = unchecked ((int)0x80070216);
1326                         const int COR_E_ARRAYTYPEMISMATCH = unchecked ((int)0x80131503L);
1327                         const int COR_E_BADIMAGEFORMAT = unchecked ((int)0x8007000BL);
1328                         const int ERROR_BAD_FORMAT = unchecked ((int)0x0B);
1329                         //const int COR_E_COMEMULATE_ERROR = unchecked ((int)?);
1330                         const int COR_E_CONTEXTMARSHAL = unchecked ((int)0x80131504L);
1331                         //const int COR_E_CORE = unchecked ((int)?);
1332                         const int NTE_FAIL = unchecked ((int)0x80090020L);
1333                         const int COR_E_DIRECTORYNOTFOUND = unchecked ((int)0x80070003L);
1334                         const int ERROR_PATH_NOT_FOUND = unchecked ((int)0x03);
1335                         const int COR_E_DIVIDEBYZERO = unchecked ((int)0x80020012L);
1336                         const int COR_E_DUPLICATEWAITOBJECT = unchecked ((int)0x80131529L);
1337                         const int COR_E_ENDOFSTREAM = unchecked ((int)0x80070026L);
1338                         const int COR_E_TYPELOAD = unchecked ((int)0x80131522L);
1339                         const int COR_E_EXCEPTION = unchecked ((int)0x80131500L);
1340                         const int COR_E_EXECUTIONENGINE = unchecked ((int)0x80131506L);
1341                         const int COR_E_FIELDACCESS = unchecked ((int)0x80131507L);
1342                         const int COR_E_FILENOTFOUND = unchecked ((int)0x80070002L);
1343                         const int ERROR_FILE_NOT_FOUND = unchecked ((int)0x02);
1344                         const int COR_E_FORMAT = unchecked ((int)0x80131537L);
1345                         const int COR_E_INDEXOUTOFRANGE = unchecked ((int)0x80131508L);
1346                         const int COR_E_INVALIDCAST = unchecked ((int)0x80004002L);
1347                         const int COR_E_INVALIDCOMOBJECT = unchecked ((int)0x80131527L);
1348                         const int COR_E_INVALIDFILTERCRITERIA = unchecked ((int)0x80131601L);
1349                         const int COR_E_INVALIDOLEVARIANTTYPE = unchecked ((int)0x80131531L);
1350                         const int COR_E_INVALIDOPERATION = unchecked ((int)0x80131509L);
1351                         const int COR_E_IO = unchecked ((int)0x80131620L);
1352                         const int COR_E_MEMBERACCESS = unchecked ((int)0x8013151AL);
1353                         const int COR_E_METHODACCESS = unchecked ((int)0x80131510L);
1354                         const int COR_E_MISSINGFIELD = unchecked ((int)0x80131511L);
1355                         const int COR_E_MISSINGMANIFESTRESOURCE = unchecked ((int)0x80131532L);
1356                         const int COR_E_MISSINGMEMBER = unchecked ((int)0x80131512L);
1357                         const int COR_E_MISSINGMETHOD = unchecked ((int)0x80131513L);
1358                         const int COR_E_MULTICASTNOTSUPPORTED = unchecked ((int)0x80131514L);
1359                         const int COR_E_NOTFINITENUMBER = unchecked ((int)0x80131528L);
1360                         const int E_NOTIMPL = unchecked ((int)0x80004001L);
1361                         const int COR_E_NOTSUPPORTED = unchecked ((int)0x80131515L);
1362                         const int COR_E_NULLREFERENCE = unchecked ((int)0x80004003L);
1363                         const int E_OUTOFMEMORY = unchecked ((int)0x8007000EL);
1364                         const int COR_E_OVERFLOW = unchecked ((int)0x80131516L);
1365                         const int COR_E_PATHTOOLONG = unchecked ((int)0x800700CEL);
1366                         const int ERROR_FILENAME_EXCED_RANGE = unchecked ((int)0xCE);
1367                         const int COR_E_RANK = unchecked ((int)0x80131517L);
1368                         const int COR_E_REFLECTIONTYPELOAD = unchecked ((int)0x80131602L);
1369                         const int COR_E_REMOTING = unchecked ((int)0x8013150BL);
1370                         const int COR_E_SAFEARRAYTYPEMISMATCH = unchecked ((int)0x80131533L);
1371                         const int COR_E_SECURITY = unchecked ((int)0x8013150AL);
1372                         const int COR_E_SERIALIZATION = unchecked ((int)0x8013150CL);
1373                         const int COR_E_STACKOVERFLOW = unchecked ((int)0x800703E9L);
1374                         const int ERROR_STACK_OVERFLOW = unchecked ((int)0x03E9);
1375                         const int COR_E_SYNCHRONIZATIONLOCK = unchecked ((int)0x80131518L);
1376                         const int COR_E_SYSTEM = unchecked ((int)0x80131501L);
1377                         const int COR_E_TARGET = unchecked ((int)0x80131603L);
1378                         const int COR_E_TARGETINVOCATION = unchecked ((int)0x80131604L);
1379                         const int COR_E_TARGETPARAMCOUNT = unchecked ((int)0x8002000EL);
1380                         const int COR_E_THREADABORTED = unchecked ((int)0x80131530L);
1381                         const int COR_E_THREADINTERRUPTED = unchecked ((int)0x80131519L);
1382                         const int COR_E_THREADSTATE = unchecked ((int)0x80131520L);
1383                         const int COR_E_THREADSTOP = unchecked ((int)0x80131521L);
1384                         const int COR_E_TYPEINITIALIZATION = unchecked ((int)0x80131534L);
1385                         const int COR_E_VERIFICATION = unchecked ((int)0x8013150DL);
1386                         //const int COR_E_WEAKREFERENCE = unchecked ((int)?);
1387                         //const int COR_E_VTABLECALLSNOTSUPPORTED = unchecked ((int));
1388
1389                         switch (errorCode) {
1390                                 case MSEE_E_APPDOMAINUNLOADED:
1391                                         return new AppDomainUnloadedException ();
1392                                 case COR_E_APPLICATION:
1393                                         return new ApplicationException ();
1394                                 case E_INVALIDARG:
1395                                         return new ArgumentException ();
1396                                 case COR_E_ARGUMENTOUTOFRANGE:
1397                                         return new ArgumentOutOfRangeException ();
1398                                 case COR_E_ARITHMETIC:
1399                                         return new ArithmeticException ();
1400                                 case COR_E_ARRAYTYPEMISMATCH:
1401                                         return new ArrayTypeMismatchException ();
1402                                 case COR_E_BADIMAGEFORMAT:
1403                                 case ERROR_BAD_FORMAT:
1404                                         return new BadImageFormatException ();
1405 //                              case COR_E_COMEMULATE_ERROR:
1406 //                                      return new COMEmulateException ();
1407                                 case COR_E_CONTEXTMARSHAL:
1408                                         return new ContextMarshalException ();
1409 //                              case COR_E_CORE:
1410 //                                      return new CoreException ();
1411                                 case NTE_FAIL:
1412                                         return new System.Security.Cryptography.CryptographicException ();
1413                                 case COR_E_DIRECTORYNOTFOUND:
1414                                 case ERROR_PATH_NOT_FOUND:
1415                                         return new System.IO.DirectoryNotFoundException ();
1416                                 case COR_E_DIVIDEBYZERO:
1417                                         return new DivideByZeroException ();
1418                                 case COR_E_DUPLICATEWAITOBJECT:
1419                                         return new DuplicateWaitObjectException ();
1420                                 case COR_E_ENDOFSTREAM:
1421                                         return new System.IO.EndOfStreamException ();
1422                                 case COR_E_EXCEPTION:
1423                                         return new Exception ();
1424                                 case COR_E_EXECUTIONENGINE:
1425                                         return new ExecutionEngineException ();
1426                                 case COR_E_FIELDACCESS:
1427                                         return new FieldAccessException ();
1428                                 case COR_E_FILENOTFOUND:
1429                                 case ERROR_FILE_NOT_FOUND:
1430                                         return new System.IO.FileNotFoundException ();
1431                                 case COR_E_FORMAT:
1432                                         return new FormatException ();
1433                                 case COR_E_INDEXOUTOFRANGE:
1434                                         return new IndexOutOfRangeException ();
1435                                 case COR_E_INVALIDCAST:
1436                                 // E_NOINTERFACE has same value as COR_E_INVALIDCAST
1437                                         return new InvalidCastException ();
1438                                 case COR_E_INVALIDCOMOBJECT:
1439                                         return new InvalidComObjectException ();
1440                                 case COR_E_INVALIDFILTERCRITERIA:
1441                                         return new InvalidFilterCriteriaException ();
1442                                 case COR_E_INVALIDOLEVARIANTTYPE:
1443                                         return new InvalidOleVariantTypeException ();
1444                                 case COR_E_INVALIDOPERATION:
1445                                         return new InvalidOperationException ();
1446                                 case COR_E_IO:
1447                                         return new System.IO.IOException ();
1448                                 case COR_E_MEMBERACCESS:
1449                                         return new MemberAccessException ();
1450                                 case COR_E_METHODACCESS:
1451                                         return new MethodAccessException ();
1452                                 case COR_E_MISSINGFIELD:
1453                                         return new MissingFieldException ();
1454                                 case COR_E_MISSINGMANIFESTRESOURCE:
1455                                         return new System.Resources.MissingManifestResourceException ();
1456                                 case COR_E_MISSINGMEMBER:
1457                                         return new MissingMemberException ();
1458                                 case COR_E_MISSINGMETHOD:
1459                                         return new MissingMethodException ();
1460                                 case COR_E_MULTICASTNOTSUPPORTED:
1461                                         return new MulticastNotSupportedException ();
1462                                 case COR_E_NOTFINITENUMBER:
1463                                         return new NotFiniteNumberException ();
1464                                 case E_NOTIMPL:
1465                                         return new NotImplementedException ();
1466                                 case COR_E_NOTSUPPORTED:
1467                                         return new NotSupportedException ();
1468                                 case COR_E_NULLREFERENCE:
1469                                 // E_POINTER has the same value as COR_E_NULLREFERENCE
1470                                         return new NullReferenceException ();
1471                                 case E_OUTOFMEMORY:
1472                                 // COR_E_OUTOFMEMORY has the same value as E_OUTOFMEMORY
1473                                         return new OutOfMemoryException ();
1474                                 case COR_E_OVERFLOW:
1475                                         return new OverflowException ();
1476                                 case COR_E_PATHTOOLONG:
1477                                 case ERROR_FILENAME_EXCED_RANGE:
1478                                         return new System.IO.PathTooLongException ();
1479                                 case COR_E_RANK:
1480                                         return new RankException ();
1481                                 case COR_E_REFLECTIONTYPELOAD:
1482                                         return new System.Reflection.ReflectionTypeLoadException (new Type[] { }, new Exception[] { });
1483                                 case COR_E_REMOTING:
1484                                         return new System.Runtime.Remoting.RemotingException ();
1485                                 case COR_E_SAFEARRAYTYPEMISMATCH:
1486                                         return new SafeArrayTypeMismatchException ();
1487                                 case COR_E_SECURITY:
1488                                         return new SecurityException ();
1489                                 case COR_E_SERIALIZATION:
1490                                         return new System.Runtime.Serialization.SerializationException ();
1491                                 case COR_E_STACKOVERFLOW:
1492                                 case ERROR_STACK_OVERFLOW:
1493                                         return new StackOverflowException ();
1494                                 case COR_E_SYNCHRONIZATIONLOCK:
1495                                         return new SynchronizationLockException ();
1496                                 case COR_E_SYSTEM:
1497                                         return new SystemException ();
1498                                 case COR_E_TARGET:
1499                                         return new TargetException ();
1500                                 case COR_E_TARGETINVOCATION:
1501                                         return new System.Reflection.TargetInvocationException (null);
1502                                 case COR_E_TARGETPARAMCOUNT:
1503                                         return new TargetParameterCountException ();
1504 //                              case COR_E_THREADABORTED:
1505 //                                      ThreadAbortException c'tor is inaccessible
1506 //                                      return new System.Threading.ThreadAbortException ();
1507                                 case COR_E_THREADINTERRUPTED:
1508                                         return new ThreadInterruptedException ();
1509                                 case COR_E_THREADSTATE:
1510                                         return new ThreadStateException ();
1511 //                              case COR_E_THREADSTOP:
1512 //                                      ThreadStopException does not exist
1513 //                                      return new System.Threading.ThreadStopException ();
1514                                 case COR_E_TYPELOAD:
1515                                         return new TypeLoadException ();
1516                                 // MSDN lists COR_E_TYPELOAD twice with different exceptions.
1517                                 // return new EntryPointNotFoundException ();
1518                                 case COR_E_TYPEINITIALIZATION:
1519                                         return new TypeInitializationException("", null);
1520                                 case COR_E_VERIFICATION:
1521                                         return new VerificationException ();
1522 //                              case COR_E_WEAKREFERENCE:
1523 //                                      return new WeakReferenceException ();
1524 //                              case COR_E_VTABLECALLSNOTSUPPORTED:
1525 //                                      return new VTableCallsNotSupportedException ();
1526                         }
1527                         if (errorCode < 0)
1528                                 return new COMException ("", errorCode);
1529                         return null;
1530                 }
1531
1532                 [DllImport ("oleaut32.dll", CharSet=CharSet.Unicode, EntryPoint = "SetErrorInfo")]
1533                 static extern int _SetErrorInfo (int dwReserved,
1534                         [MarshalAs(UnmanagedType.Interface)] IErrorInfo pIErrorInfo);
1535
1536                 [DllImport ("oleaut32.dll", CharSet=CharSet.Unicode, EntryPoint = "GetErrorInfo")]
1537                 static extern int _GetErrorInfo (int dwReserved,
1538                         [MarshalAs(UnmanagedType.Interface)] out IErrorInfo ppIErrorInfo);
1539
1540                 static bool SetErrorInfoNotAvailable;
1541                 static bool GetErrorInfoNotAvailable;
1542
1543                 internal static int SetErrorInfo (int dwReserved, IErrorInfo errorInfo)
1544                 {
1545                         int retVal = 0;
1546                         errorInfo = null;
1547
1548                         if (SetErrorInfoNotAvailable)
1549                                 return -1;
1550
1551                         try {
1552                                 retVal = _SetErrorInfo (dwReserved, errorInfo);
1553                         }
1554                         catch (Exception) {
1555                                 // ignore any exception - probably there's no suitable SetErrorInfo
1556                                 // method available.
1557                                 SetErrorInfoNotAvailable = true;
1558                         }
1559                         return retVal;
1560                 }
1561
1562                 internal static int GetErrorInfo (int dwReserved, out IErrorInfo errorInfo)
1563                 {
1564                         int retVal = 0;
1565                         errorInfo = null;
1566
1567                         if (GetErrorInfoNotAvailable)
1568                                 return -1;
1569
1570                         try {
1571                                 retVal = _GetErrorInfo (dwReserved, out errorInfo);
1572                         }
1573                         catch (Exception) {
1574                                 // ignore any exception - probably there's no suitable GetErrorInfo
1575                                 // method available.
1576                                 GetErrorInfoNotAvailable = true;
1577                         }
1578                         return retVal;
1579                 }
1580
1581                 public static Exception GetExceptionForHR (int errorCode)
1582                 {
1583                         return GetExceptionForHR (errorCode, IntPtr.Zero);
1584                 }
1585
1586                 public static Exception GetExceptionForHR (int errorCode, IntPtr errorInfoPtr)
1587                 {
1588                         IErrorInfo errorInfo = null;
1589                         if (errorInfoPtr != (IntPtr)(-1)) {
1590                                 if (errorInfoPtr == IntPtr.Zero) {
1591                                         if (GetErrorInfo (0, out errorInfo) != 0) {
1592                                                 errorInfo = null;
1593                                         }
1594                                 } else {
1595                                         errorInfo = Marshal.GetObjectForIUnknown (errorInfoPtr) as IErrorInfo;
1596                                 }
1597                         }
1598
1599                         if (errorInfo is ManagedErrorInfo && ((ManagedErrorInfo)errorInfo).Exception.hresult == errorCode) {
1600                                 return ((ManagedErrorInfo)errorInfo).Exception;
1601                         }
1602
1603                         Exception e = ConvertHrToException (errorCode);
1604                         if (errorInfo != null && e != null) {
1605                                 uint helpContext;
1606                                 errorInfo.GetHelpContext (out helpContext);
1607                                 string str;
1608                                 errorInfo.GetSource (out str);
1609                                 e.Source = str;
1610                                 errorInfo.GetDescription (out str);
1611                                 e.SetMessage (str);
1612                                 errorInfo.GetHelpFile (out str);
1613
1614                                 if (helpContext == 0) {
1615                                         e.HelpLink = str;
1616                                 } else {
1617                                         e.HelpLink = string.Format ("{0}#{1}", str, helpContext);
1618                                 }
1619                         }
1620                         return e;
1621                 }
1622
1623 #if !FULL_AOT_RUNTIME
1624                 public static int FinalReleaseComObject (object o)
1625                 {
1626                         while (ReleaseComObject (o) != 0);
1627                         return 0;
1628                 }
1629 #endif
1630
1631                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1632                 private static extern Delegate GetDelegateForFunctionPointerInternal (IntPtr ptr, Type t);
1633
1634                 public static Delegate GetDelegateForFunctionPointer (IntPtr ptr, Type t)
1635                 {
1636                         if (t == null)
1637                                 throw new ArgumentNullException ("t");
1638                         if (!t.IsSubclassOf (typeof (MulticastDelegate)) || (t == typeof (MulticastDelegate)))
1639                                 throw new ArgumentException ("Type is not a delegate", "t");
1640                         if (t.IsGenericType)
1641                                 throw new ArgumentException ("The specified Type must not be a generic type definition.");
1642                         if (ptr == IntPtr.Zero)
1643                                 throw new ArgumentNullException ("ptr");
1644
1645                         return GetDelegateForFunctionPointerInternal (ptr, t);
1646                 }
1647
1648 #if NET_4_5
1649                 public static TDelegate GetDelegateForFunctionPointer<TDelegate> (IntPtr ptr) {
1650                         return (TDelegate) (object) GetDelegateForFunctionPointer (ptr, typeof (TDelegate));
1651                 }
1652 #endif
1653
1654                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
1655                 private static extern IntPtr GetFunctionPointerForDelegateInternal (Delegate d);
1656
1657                 public static IntPtr GetFunctionPointerForDelegate (Delegate d)
1658                 {
1659                         if (d == null)
1660                                 throw new ArgumentNullException ("d");
1661
1662                         return GetFunctionPointerForDelegateInternal (d);
1663                 }
1664
1665 #if NET_4_5
1666                 public static IntPtr GetFunctionPointerForDelegate<TDelegate> (TDelegate d) {
1667                         if (d == null)
1668                                 throw new ArgumentNullException ("d");
1669
1670                         return GetFunctionPointerForDelegateInternal ((Delegate)(object)d);
1671                 }
1672 #endif
1673         }
1674 }