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//-----------------------------------------------------------------------------
// 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<ItemType> : 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;
}
}
}
}
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