SafeWaitHandle.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / clr / src / BCL / Microsoft / Win32 / SafeHandles / SafeWaitHandle.cs / 3 / SafeWaitHandle.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*============================================================
** 
** Class:  SafeWaitHandle 
**
** 
** A wrapper for Win32 events (mutexes, auto reset events, and
** manual reset events).  Used by WaitHandle.
**
** 
===========================================================*/
 
using System; 
using System.Security;
using System.Security.Permissions; 
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;
using System.Runtime.ConstrainedExecution;
using System.Runtime.Versioning; 
using Microsoft.Win32;
using System.Threading; 
 
namespace Microsoft.Win32.SafeHandles {
 
    [SecurityPermission(SecurityAction.LinkDemand,UnmanagedCode=true)]
    public sealed class SafeWaitHandle : SafeHandleZeroOrMinusOneIsInvalid
    {

        // Called by P/Invoke marshaler 
        private SafeWaitHandle() : base(true)
        { 
        } 

        [ReliabilityContract(Consistency.WillNotCorruptState, Cer.MayFail)] 
        public SafeWaitHandle(IntPtr existingHandle, bool ownsHandle) : base(ownsHandle)
        {
            SetHandle(existingHandle);
        } 

        [ResourceExposure(ResourceScope.Machine)] 
        [ResourceConsumption(ResourceScope.Machine)] 
        override protected bool ReleaseHandle()
        { 
            return Win32Native.CloseHandle(handle);
        }
    }
} 

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

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