DetectEofStream.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Channels / DetectEofStream.cs / 1 / DetectEofStream.cs
                        

                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------
namespace System.ServiceModel.Channels
{ 
    using System.IO;
 
    abstract class DetectEofStream : DelegatingStream 
    {
        bool isAtEof; 

        protected DetectEofStream(Stream stream)
            : base(stream)
        { 
            this.isAtEof = false;
        } 
 
        protected bool IsAtEof
        { 
            get { return this.isAtEof; }
        }

        public override int EndRead(IAsyncResult result) 
        {
            int returnValue = base.EndRead(result); 
            if (returnValue == 0) 
            {
                ReceivedEof(); 
            }
            return returnValue;
        }
 
        public override int ReadByte()
        { 
            int returnValue = base.ReadByte(); 
            if (returnValue == -1)
            { 
                ReceivedEof();
            }
            return returnValue;
        } 

        public override int Read(byte[] buffer, int offset, int count) 
        { 
            int returnValue = base.Read(buffer, offset, count);
            if (returnValue == 0) 
            {
                ReceivedEof();
            }
            return returnValue; 
        }
 
        void ReceivedEof() 
        {
            if (!isAtEof) 
            {
                this.isAtEof = true;
                this.OnReceivedEof();
            } 
        }
 
        protected virtual void OnReceivedEof() 
        {
        } 
    }
}

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

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