safePerfProviderHandle.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 / fx / src / Core / Microsoft / Win32 / SafeHandles / safePerfProviderHandle.cs / 1305376 / safePerfProviderHandle.cs
                        

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

namespace Microsoft.Win32.SafeHandles { 
    using System; 
    using System.Threading;
    using System.Diagnostics; 
    using Microsoft.Win32;
    using Microsoft.Win32.SafeHandles;

    //  
    // 
    //  
#pragma warning disable 618    // Have not migrated to v4 transparency yet 
    [System.Security.SecurityCritical(System.Security.SecurityCriticalScope.Everything)]
#pragma warning restore 618 
    internal sealed class SafePerfProviderHandle : SafeHandleZeroOrMinusOneIsInvalid {
        private SafePerfProviderHandle() : base(true) {}

        protected override bool ReleaseHandle() { 
            IntPtr tempProviderHandle = handle;
 
            if (Interlocked.Exchange(ref handle, IntPtr.Zero) != IntPtr.Zero) { 
                uint Status = UnsafeNativeMethods.PerfStopProvider(tempProviderHandle);
                Debug.Assert(Status == (uint)UnsafeNativeMethods.ERROR_SUCCESS, "PerfStopProvider() fails"); 
                // ERROR_INVALID_PARAMETER
            }
            return true;
        } 
    }
} 

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

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