SafeReadContext.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 / Log / System / IO / Log / SafeReadContext.cs / 1305376 / SafeReadContext.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------
namespace System.IO.Log
{ 
    using System;
    using System.Diagnostics; 
    using System.Runtime.InteropServices; 
    using System.Runtime.ConstrainedExecution;
    using System.Runtime.Versioning; 
    using System.Security;

    internal sealed class SafeReadContext : SafeHandle
    { 
        public SafeReadContext() : base(IntPtr.Zero, true)
        { 
        } 

        public override bool IsInvalid 
        {
            get
            {
                return IsClosed || this.handle == IntPtr.Zero; 
            }
        } 
 
        [DllImport("clfsw32.dll"),
         SuppressUnmanagedCodeSecurity, 
         ReliabilityContract(Consistency.WillNotCorruptState, Cer.Success)]
        [ResourceExposure(ResourceScope.None)]
        private static extern bool TerminateReadLog(IntPtr ptr);
 
        override protected bool ReleaseHandle()
        { 
            return TerminateReadLog(this.handle); 
        }
    } 
}

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

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