TrackingMemoryStreamFactory.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 / wpf / src / Base / MS / Internal / IO / Packaging / TrackingMemoryStreamFactory.cs / 1305600 / TrackingMemoryStreamFactory.cs
                        

                        
                            //------------------------------------------------------------------------------ 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// Description: 
//  This is a basic implementation of the ITrackingMemoryStreamFactory interface 
//
// History: 
//  07/4/2005: IgorBel: Initial creation.
//  11/08/2005: BruceMac: Change namespace
//
//----------------------------------------------------------------------------- 

using System; 
using System.IO; 
using System.Diagnostics;
 
namespace MS.Internal.IO.Packaging
{
    /// 
    /// TrackingMemoryStreamFactory class is used in the Sparse Memory Stream to keep track of the memory Usage 
    /// 
    internal class TrackingMemoryStreamFactory : ITrackingMemoryStreamFactory 
    { 

        public MemoryStream Create() 
        {
            return new TrackingMemoryStream((ITrackingMemoryStreamFactory)this);
        }
 
        public MemoryStream Create(int capacity)
        { 
            return new TrackingMemoryStream((ITrackingMemoryStreamFactory)this, capacity); 
        }
 
        public void ReportMemoryUsageDelta(int delta)
        {
            checked{_bufferedMemoryConsumption += delta;}
            Debug.Assert(_bufferedMemoryConsumption >=0, "we end up having buffers of negative size"); 
        }
 
        internal long CurrentMemoryConsumption 
        {
            get 
            {
                return _bufferedMemoryConsumption;
            }
        } 

        private long _bufferedMemoryConsumption; 
    } 
}

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

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