BaseAppDomainProtocolHandler.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 / WasHosting / System / ServiceModel / WasHosting / BaseAppDomainProtocolHandler.cs / 1 / BaseAppDomainProtocolHandler.cs

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

namespace System.ServiceModel.WasHosting 
{
    using System; 
    using System.Diagnostics; 
    using System.ServiceModel;
    using System.ServiceModel.Channels; 
    using System.Web;
    using System.Web.Hosting;
    using System.ServiceModel.Activation;
    using System.ServiceModel.Diagnostics; 
    using System.Runtime.InteropServices;
 
    abstract class BaseAppDomainProtocolHandler : AppDomainProtocolHandler 
    {
        string protocolId; 
        IListenerChannelCallback listenerChannelCallback;
        protected ListenerChannelContext listenerChannelContext;
        object syncRoot = new object();
 
        protected BaseAppDomainProtocolHandler(string protocolId)
            : base() 
        { 
            this.protocolId = protocolId;
        } 

        object ThisLock
        {
            get 
            {
                return this.syncRoot; 
            } 
        }
 
        protected void OnMessageReceived()
        {
            try
            { 
                IListenerChannelCallback callback = this.listenerChannelCallback;
                if (callback != null) 
                { 
                    callback.ReportMessageReceived();
                } 
            }
            catch (COMException exception)
            {
                if (DiagnosticUtility.ShouldTraceWarning) 
                {
                    DiagnosticUtility.ExceptionUtility.TraceHandledException(exception, TraceEventType.Warning); 
                } 
                // The listener adapter might have gone away. Ignore the error.
            } 
        }

        // Start per-process listening for messages
        public override void StartListenerChannel(IListenerChannelCallback listenerChannelCallback) 
        {
            Debug.Print("BaseAppDomainProtocolHandler.StartListenerChannel()"); 
            if (listenerChannelCallback == null) 
            {
                DiagnosticUtility.DebugAssert("listenerChannelCallback is null"); 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperInternal(false);
            }

            this.listenerChannelCallback = listenerChannelCallback; 

            int listenerChannelDataLength = listenerChannelCallback.GetBlobLength(); 
            byte[] listenerChannelData = new byte[listenerChannelDataLength]; 
            listenerChannelCallback.GetBlob(listenerChannelData, ref listenerChannelDataLength);
            Debug.Print("BaseAppDomainProtocolHandler.StartListenerChannel() GetBlob() contains " + listenerChannelDataLength + " bytes"); 

            listenerChannelContext = ListenerChannelContext.Hydrate(listenerChannelData);

            Debug.Print("BaseAppDomainProtocolHandler.StartListenerChannel() calling OnStart()"); 
#if DEBUG
            // Debug.Print("BaseAppDomainProtocolHandler.StartListenerChannel() waiting for you to attach the debugger to " + Process.GetCurrentProcess().ProcessName + " Pid: " + Process.GetCurrentProcess().Id); 
            // for (int sleepCount = 0; sleepCount < 30 && !Debugger.IsAttached && !ListenerUnsafeNativeMethods.IsDebuggerPresent(); sleepCount++) { Thread.Sleep(500); } Debugger.Break(); 
#endif
            try 
            {
                OnStart();

                listenerChannelCallback.ReportStarted(); 
                Debug.Print("BaseAppDomainProtocolHandler.StartListenerChannel() called ReportStarted()");
            } 
            catch (CommunicationException exception) 
            {
                Debug.Print("BaseAppDomainProtocolHandler.StartListenerChannel() failed in OnStart():\r\n" + exception); 
                DiagnosticUtility.EventLog.LogEvent(TraceEventType.Error,
                    EventLogCategory.WebHost,
                    EventLogEventId.WebHostFailedToListen,
                    listenerChannelContext.AppKey, 
                    this.protocolId,
                    DiagnosticTrace.CreateSourceString(this), 
                    exception.ToString()); 

                throw; 
            }
        }

        protected virtual void OnStart() { } 
        protected virtual void OnStop() { }
 
        public override void StopProtocol(bool immediate) 
        {
            Debug.Print("BaseAppDomainProtocolHandler.StopProtocol() immediate: " + immediate + " calling ReportStopped()"); 

            Stop();
            HostingEnvironment.UnregisterObject(this);
        } 

        public override void StopListenerChannel(int listenerChannelId, bool immediate) 
        { 
            Debug.Print("BaseAppDomainProtocolHandler.StopListenerChannel() listenerChannelId: " + listenerChannelId + " immediate: " + immediate + " calling ReportStopped()");
            if (listenerChannelId != listenerChannelContext.ListenerChannelId) 
            {
                DiagnosticUtility.DebugAssert("Invalid ListenerChannel ID!");
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperInternal(false);
            } 

            Stop(); 
        } 

        void Stop() 
        {
            lock (ThisLock)
            {
                if (this.listenerChannelCallback != null) 
                {
                    OnStop(); 
                    this.listenerChannelCallback.ReportStopped(0); 
                    this.listenerChannelCallback = null;
                } 
            }
        }
    }
} 


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

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