CommunicationObjectManager.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 / CommunicationObjectManager.cs / 1 / CommunicationObjectManager.cs
                        

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

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

    internal class CommunicationObjectManager : LifetimeManager where ItemType : class, ICommunicationObject
    {
        bool inputClosed; 
        Hashtable table;
 
        public CommunicationObjectManager(object mutex) 
            : base(mutex)
        { 
            this.table = new Hashtable();
        }

        public void Add(ItemType item) 
        {
            bool added = false; 
 
            lock (this.ThisLock)
            { 
                if (this.State == LifetimeState.Opened && !this.inputClosed)
                {
                    if (this.table.ContainsKey(item))
                        return; 

                    this.table.Add(item, item); 
                    base.IncrementBusyCountWithoutLock(); 
                    item.Closed += this.OnItemClosed;
                    added = true; 
                }
            }

            if (!added) 
            {
                item.Abort(); 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ObjectDisposedException(this.GetType().ToString())); 
            }
        } 

        public void CloseInput()
        {
            //Abort can reenter this call as a result of 
            //close timeout, Closing input twice is not a
            //FailFast case. 
            this.inputClosed = true; 
        }
 
        public void DecrementActivityCount()
        {
            this.DecrementBusyCount();
        } 

        public void IncrementActivityCount() 
        { 
            this.IncrementBusyCount();
        } 

        void OnItemClosed(object sender, EventArgs args)
        {
            this.Remove((ItemType)sender); 
        }
 
        public void Remove(ItemType item) 
        {
            lock (this.ThisLock) 
            {
                if (!this.table.ContainsKey(item))
                    return;
                this.table.Remove(item); 
            }
 
            item.Closed -= this.OnItemClosed; 
            base.DecrementBusyCount();
        } 

        public ItemType[] ToArray()
        {
            lock (this.ThisLock) 
            {
                int index = 0; 
                ItemType[] items = new ItemType[this.table.Keys.Count]; 
                foreach(ItemType item in this.table.Keys)
                    items[index++] = item; 

                return items;
            }
        } 
    }
} 

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

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