The Labs \ Source Viewer \ SSCLI \ Microsoft.Win32.SafeHandles \ SafeFusionHandle

  1. // ==++==
  2. //
  3. //
  4. // Copyright (c) 2006 Microsoft Corporation. All rights reserved.
  5. //
  6. // The use and distribution terms for this software are contained in the file
  7. // named license.txt, which can be found in the root of this distribution.
  8. // By using this software in any fashion, you are agreeing to be bound by the
  9. // terms of this license.
  10. //
  11. // You must not remove this notice, or any other, from this software.
  12. //
  13. //
  14. // ==--==
  15. /*============================================================
  16. **
  17. ** Class:  SafeFusionHandle
  18. **
  19. ** A wrapper for fusion handles
  20. **
  21. ** Date:  July 8, 2002
  22. **
  23. ===========================================================*/
  24. using System;
  25. using System.Security;
  26. using System.Security.Permissions;
  27. using System.Runtime.InteropServices;
  28. using Microsoft.Win32;
  29. using System.Runtime.CompilerServices;
  30. using System.Runtime.ConstrainedExecution;
  31. namespace Microsoft.Win32.SafeHandles
  32. {
  33.    
  34.     internal sealed class SafeFusionHandle : SafeHandleZeroOrMinusOneIsInvalid
  35.     {
  36.        
  37.         [SecurityPermission(SecurityAction.LinkDemand, UnmanagedCode = true)]
  38.         internal SafeFusionHandle() : base(true)
  39.         {
  40.         }
  41.        
  42.        
  43.         [SecurityPermission(SecurityAction.LinkDemand, UnmanagedCode = true)]
  44.         internal SafeFusionHandle(IntPtr preexistingHandle, bool ownshandle) : base(ownshandle)
  45.         {
  46.             SetHandle(preexistingHandle);
  47.         }
  48.        
  49.         static internal SafeFusionHandle InvalidHandle {
  50.             get { return new SafeFusionHandle(IntPtr.Zero, true); }
  51.         }
  52.        
  53.         [MethodImplAttribute(MethodImplOptions.InternalCall), ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
  54.         private static extern void ReleaseFusionHandle(IntPtr pp);
  55.        
  56.         protected override bool ReleaseHandle()
  57.         {
  58.             ReleaseFusionHandle(handle);
  59.             return true;
  60.         }
  61.     }
  62. }

Developer Fusion