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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel
{
using System.Collections.Generic;
using System.Threading;
class SynchronizedDisposablePool<T> where T : class, IDisposable
{
List<T> items;
int maxCount;
bool disposed;
public SynchronizedDisposablePool(int maxCount)
{
this.items = new List<T>();
this.maxCount = maxCount;
}
object ThisLock
{
get { return this; }
}
public void Dispose()
{
T[] items;
lock (ThisLock)
{
if (!disposed)
{
disposed = true;
if (this.items.Count > 0)
{
items = new T[this.items.Count];
this.items.CopyTo(items, 0);
this.items.Clear();
}
else
{
items = null;
}
}
else
{
items = null;
}
}
if (items != null)
{
for (int i = 0; i < items.Length; i++)
{
items[i].Dispose();
}
}
}
public bool Return(T value)
{
if (!disposed && this.items.Count < this.maxCount)
{
lock (ThisLock)
{
if (!disposed && this.items.Count < this.maxCount)
{
this.items.Add(value);
return true;
}
}
}
return false;
}
public T Take()
{
if (!disposed && this.items.Count > 0)
{
lock (ThisLock)
{
if (!disposed && this.items.Count > 0)
{
int index = this.items.Count - 1;
T item = this.items[index];
this.items.RemoveAt(index);
return item;
}
}
}
return null;
}
}
}
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