InputChannel.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 / InputChannel.cs / 1 / InputChannel.cs

                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.ServiceModel.Channels 
{
    using System.Collections.Generic; 
    using System.ServiceModel; 

    class InputChannel : InputQueueChannel, IInputChannel 
    {
        EndpointAddress localAddress;

        public InputChannel(ChannelManagerBase channelManager, EndpointAddress localAddress) 
            : base(channelManager)
        { 
            this.localAddress = localAddress; 
        }
 
        public EndpointAddress LocalAddress
        {
            get { return localAddress; }
        } 

        public override T GetProperty() 
        { 
            if (typeof(T) == typeof(IInputChannel))
            { 
                return (T)(object)this;
            }

            T baseProperty = base.GetProperty(); 
            if (baseProperty != null)
            { 
                return baseProperty; 
            }
 
            return default(T);
        }

        protected override IAsyncResult OnBeginOpen(TimeSpan timeout, AsyncCallback callback, object state) 
        {
            return new CompletedAsyncResult(callback, state); 
        } 

        protected override void OnEndOpen(IAsyncResult result) 
        {
            CompletedAsyncResult.End(result);
        }
 
        protected override void OnOpen(TimeSpan timeout)
        { 
        } 

        public virtual Message Receive() 
        {
            return this.Receive(this.DefaultReceiveTimeout);
        }
 
        public virtual Message Receive(TimeSpan timeout)
        { 
            if (timeout < TimeSpan.Zero) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
                    new ArgumentOutOfRangeException("timeout", timeout, SR.GetString(SR.SFxTimeoutOutOfRange0))); 

            this.ThrowPending();

            return InputChannel.HelpReceive(this, timeout); 
        }
 
        public virtual IAsyncResult BeginReceive(AsyncCallback callback, object state) 
        {
            return this.BeginReceive(this.DefaultReceiveTimeout, callback, state); 
        }

        public virtual IAsyncResult BeginReceive(TimeSpan timeout, AsyncCallback callback, object state)
        { 
            if (timeout < TimeSpan.Zero)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError( 
                    new ArgumentOutOfRangeException("timeout", timeout, SR.GetString(SR.SFxTimeoutOutOfRange0)));
            } 

            this.ThrowPending();

            return InputChannel.HelpBeginReceive(this, timeout, callback, state); 
        }
 
        public Message EndReceive(IAsyncResult result) 
        {
            return InputChannel.HelpEndReceive(result); 
        }

        public virtual bool TryReceive(TimeSpan timeout, out Message message)
        { 
            if (timeout < TimeSpan.Zero)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError( 
                    new ArgumentOutOfRangeException("timeout", timeout, SR.GetString(SR.SFxTimeoutOutOfRange0)));
            } 

            this.ThrowPending();
            return base.Dequeue(timeout, out message);
        } 

        public virtual IAsyncResult BeginTryReceive(TimeSpan timeout, AsyncCallback callback, object state) 
        { 
            if (timeout < TimeSpan.Zero)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
                    new ArgumentOutOfRangeException("timeout", timeout, SR.GetString(SR.SFxTimeoutOutOfRange0)));
            }
 
            this.ThrowPending();
            return base.BeginDequeue(timeout, callback, state); 
        } 

        public virtual bool EndTryReceive(IAsyncResult result, out Message message) 
        {
            return base.EndDequeue(result, out message);
        }
 
        public bool WaitForMessage(TimeSpan timeout)
        { 
            if (timeout < TimeSpan.Zero) 
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError( 
                    new ArgumentOutOfRangeException("timeout", timeout, SR.GetString(SR.SFxTimeoutOutOfRange0)));
            }

            this.ThrowPending(); 
            return base.WaitForItem(timeout);
        } 
 
        public IAsyncResult BeginWaitForMessage(TimeSpan timeout, AsyncCallback callback, object state)
        { 
            if (timeout < TimeSpan.Zero)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
                    new ArgumentOutOfRangeException("timeout", timeout, SR.GetString(SR.SFxTimeoutOutOfRange0)));
 
            this.ThrowPending();
            return base.BeginWaitForItem(timeout, callback, state); 
        } 

        public bool EndWaitForMessage(IAsyncResult result) 
        {
            return base.EndWaitForItem(result);
        }
 
        #region static Helpers to convert TryReceive to Receive
        internal static Message HelpReceive(IInputChannel channel, TimeSpan timeout) 
        { 
            Message message;
            if (channel.TryReceive(timeout, out message)) 
            {
                return message;
            }
            else 
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateReceiveTimedOutException(channel, timeout)); 
            } 
        }
 
        internal static IAsyncResult HelpBeginReceive(IInputChannel channel, TimeSpan timeout, AsyncCallback callback, object state)
        {
            return new HelpReceiveAsyncResult(channel, timeout, callback, state);
        } 

        internal static Message HelpEndReceive(IAsyncResult result) 
        { 
            return HelpReceiveAsyncResult.End(result);
        } 

        class HelpReceiveAsyncResult : AsyncResult
        {
            IInputChannel channel; 
            TimeSpan timeout;
            static AsyncCallback onReceive = DiagnosticUtility.ThunkAsyncCallback(new AsyncCallback(OnReceive)); 
            Message message; 

            public HelpReceiveAsyncResult(IInputChannel channel, TimeSpan timeout, AsyncCallback callback, object state) 
                : base(callback, state)
            {
                this.channel = channel;
                this.timeout = timeout; 
                IAsyncResult result = channel.BeginTryReceive(timeout, onReceive, this);
 
                if (!result.CompletedSynchronously) 
                {
                    return; 
                }

                HandleReceiveComplete(result);
                base.Complete(true); 
            }
 
            public static Message End(IAsyncResult result) 
            {
                HelpReceiveAsyncResult thisPtr = AsyncResult.End(result); 
                return thisPtr.message;
            }

            void HandleReceiveComplete(IAsyncResult result) 
            {
                if (!this.channel.EndTryReceive(result, out this.message)) 
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
                        InputChannel.CreateReceiveTimedOutException(this.channel, this.timeout)); 
                }
            }

            static void OnReceive(IAsyncResult result) 
            {
                if (result.CompletedSynchronously) 
                { 
                    return;
                } 

                HelpReceiveAsyncResult thisPtr = (HelpReceiveAsyncResult)result.AsyncState;
                Exception completionException = null;
                try 
                {
                    thisPtr.HandleReceiveComplete(result); 
                } 
#pragma warning suppress 56500 // [....], transferring exception to another thread
                catch (Exception e) 
                {
                    if (DiagnosticUtility.IsFatal(e))
                    {
                        throw; 
                    }
 
                    completionException = e; 
                }
 
                thisPtr.Complete(false, completionException);
            }
        }
 
        static Exception CreateReceiveTimedOutException(IInputChannel channel, TimeSpan timeout)
        { 
            if (channel.LocalAddress != null) 
            {
                return new TimeoutException(SR.GetString(SR.ReceiveTimedOut, channel.LocalAddress.Uri.AbsoluteUri, timeout)); 
            }
            else
            {
                return new TimeoutException(SR.GetString(SR.ReceiveTimedOutNoLocalAddress, timeout)); 
            }
        } 
        #endregion 
    }
} 

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

Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK