securitycriticaldata.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Shared / MS / Internal / securitycriticaldata.cs / 1 / securitycriticaldata.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// Description: 
//              This is a helper class to facilate the storage of Security critical data ( aka "Plutonium") 
//              It's primary purpose is to do put a [SecurityCritical] on all access to the data.
// 
//              What is "critical data" ? This is any data created that required an Assert for it's creation.
//              As an example - the creation of an HwndWrapper during Dispatcher.Attach.
//
// History: 
//  10/25/04 : [....] Created.
// 
//--------------------------------------------------------------------------- 
using System ;
using System.Security ; 

#if WINDOWS_BASE
    using MS.Internal.WindowsBase;
#elif PRESENTATION_CORE 
    using MS.Internal.PresentationCore;
#elif PRESENTATIONFRAMEWORK 
    using MS.Internal.PresentationFramework; 
#elif DRT
    using MS.Internal.Drt; 
#else
#error Attempt to use FriendAccessAllowedAttribute from an unknown assembly.
using MS.Internal.YourAssemblyName;
#endif 

namespace MS.Internal 
{ 
    [FriendAccessAllowed]
    internal struct SecurityCriticalData 
    {
        /// 
        /// Critical - as this accesses _value which is Critical.
        /// Safe - as the caller already got the critical value. 
        /// 
        [SecurityCritical, SecurityTreatAsSafe] 
        internal SecurityCriticalData(T value) 
        {
            _value = value; 
        }

        // 
        //    Critical "by definition" - this class is intended only to store critical data. 
        // 
        internal T Value 
        { 
            [SecurityCritical]
            get 
            {
                return _value;
            }
        } 

        ///  
        /// Critical - by definition as this is a wrapper for Critical data. 
        /// 
        [SecurityCritical] 
        private T _value;
    }
}

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

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