LockedAssemblyCache.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 / DataEntity / System / Data / Metadata / ObjectLayer / LockedAssemblyCache.cs / 1305376 / LockedAssemblyCache.cs
                        

                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner       [....]
// @backupOwner [....] 
//--------------------------------------------------------------------- 

using System.Collections.Generic; 
using System.Diagnostics;
using System.Reflection;
using System.Threading;
 
namespace System.Data.Metadata.Edm
{ 
    internal class LockedAssemblyCache : IDisposable 
    {
        private object _lockObject; 
        private Dictionary _globalAssemblyCache;
        internal LockedAssemblyCache(object lockObject, Dictionary globalAssemblyCache)
        {
            _lockObject = lockObject; 
            _globalAssemblyCache = globalAssemblyCache;
#pragma warning disable 0618 
            //@ 
            Monitor.Enter(_lockObject);
#pragma warning restore 0618 
        }

        public void Dispose()
        { 
            // Technically, calling GC.SuppressFinalize is not required because the class does not
            // have a finalizer, but it does no harm, protects against the case where a finalizer is added 
            // in the future, and prevents an FxCop warning. 
            GC.SuppressFinalize(this);
            Monitor.Exit(_lockObject); 
            _lockObject = null;
            _globalAssemblyCache = null;
        }
 
        [Conditional("DEBUG")]
        private void AssertLockedByThisThread() 
        { 
            bool entered = false;
            Monitor.TryEnter(_lockObject, ref entered); 
            if (entered)
            {
                Monitor.Exit(_lockObject);
            } 

            Debug.Assert(entered, "The cache is being accessed by a thread that isn't holding the lock"); 
        } 

        internal bool TryGetValue(Assembly assembly, out ImmutableAssemblyCacheEntry cacheEntry) 
        {
            AssertLockedByThisThread();
            return _globalAssemblyCache.TryGetValue(assembly, out cacheEntry);
        } 

        internal void Add(Assembly assembly, ImmutableAssemblyCacheEntry assemblyCacheEntry) 
        { 
            AssertLockedByThisThread();
            _globalAssemblyCache.Add(assembly, assemblyCacheEntry); 
        }

        internal void Clear()
        { 
            AssertLockedByThisThread();
            _globalAssemblyCache.Clear(); 
        } 
    }
} 

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

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