SafeCloseHandleCritical.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / System.ServiceModel.Activation / System / ServiceModel / Activation / Interop / SafeCloseHandleCritical.cs / 1305376 / SafeCloseHandleCritical.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace System.ServiceModel.Activation.Interop 
{
    using System; 
    using System.Runtime.ConstrainedExecution; 
    using System.Runtime.InteropServices;
    using System.Runtime.Versioning; 
    using System.Security;
    using Microsoft.Win32.SafeHandles;

    #pragma warning disable 618 // have not moved to the v4 security model yet 
    [SecurityCritical(SecurityCriticalScope.Everything)]
    #pragma warning restore 618 
    sealed class SafeCloseHandleCritical : SafeHandleZeroOrMinusOneIsInvalid 
    {
        const string KERNEL32 = "kernel32.dll"; 

        SafeCloseHandleCritical()
            : base(true)
        { 
        }
 
        protected override bool ReleaseHandle() 
        {
            return CloseHandle(handle); 
        }

        [DllImport(KERNEL32, ExactSpelling = true, SetLastError = true)]
        [SuppressUnmanagedCodeSecurity] 
        [ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
        [ResourceExposure(ResourceScope.None)] 
        extern static bool CloseHandle(IntPtr handle); 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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