ComProxy.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / ComIntegration / ComProxy.cs / 1 / ComProxy.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------
namespace System.ServiceModel.ComIntegration
{ 
     using System;
     using System.Runtime.InteropServices; 
     using System.Collections.Generic; 
     using System.ServiceModel;
     internal class ComProxy : IDisposable 
     {
           IntPtr inner;
           IDisposable ccw;
           internal static ComProxy Create (IntPtr outer, object obj, IDisposable disp) 
           {
               if (outer == IntPtr.Zero) 
               { 
                   DiagnosticUtility.DebugAssert("Outer cannot be null");
 
                   throw DiagnosticUtility.ExceptionUtility.ThrowHelperInternal(false);
               }
               IntPtr inner = IntPtr.Zero;
               inner = Marshal.CreateAggregatedObject (outer, obj); 
               int refCount = Marshal.AddRef (inner);
               // Workaround for the CLR ref count issue. 
               if (3 == refCount) 
                    Marshal.Release (inner);
               Marshal.Release (inner); 
               return new ComProxy (inner, disp);
           }

           internal ComProxy (IntPtr inner, IDisposable disp) 
           {
               this.inner = inner; 
               ccw = disp; 
           }
 
           internal void QueryInterface (ref Guid riid, out IntPtr tearoff)
           {
               if (inner == IntPtr.Zero)
               { 
                   DiagnosticUtility.DebugAssert("Inner should not be Null at this point");
 
                   throw DiagnosticUtility.ExceptionUtility.ThrowHelperInternal(false); 
               }
               int hr = Marshal.QueryInterface (inner, ref riid, out tearoff); 
               if (hr != HR.S_OK)
               {
                   DiagnosticUtility.DebugAssert("QueryInterface should succeed");
 
                   throw DiagnosticUtility.ExceptionUtility.ThrowHelperInternal(false);
               } 
           } 

           void IDisposable.Dispose() 
           {
               Dispose(true);
           }
 
           void Dispose (bool disposing)
           { 
               if (inner == IntPtr.Zero) 
               {
                   DiagnosticUtility.DebugAssert("Inner should not be Null at this point"); 

#pragma warning suppress 56519 //
                   throw DiagnosticUtility.ExceptionUtility.ThrowHelperInternal(false);
               } 
               Marshal.Release (inner);
               if (disposing) 
               { 
                  if (ccw != null)
                     ccw.Dispose (); 
               }
           }

           public ComProxy Clone () 
           {
               if (inner == IntPtr.Zero) 
               { 
                   DiagnosticUtility.DebugAssert("Inner should not be Null at this point");
 
                   throw DiagnosticUtility.ExceptionUtility.ThrowHelperInternal(false);
               }
               Marshal.AddRef (inner);
               return new ComProxy (inner, null); 
           }
     } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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