57 lines
849 B
C#
57 lines
849 B
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using System.Windows.Controls;
|
|
using System.Diagnostics;
|
|
|
|
namespace Microsoft.Research.DynamicDataDisplay.Common
|
|
{
|
|
[DebuggerDisplay("Count = {Count}")]
|
|
internal sealed class ResourcePool<T>
|
|
{
|
|
private readonly List<T> pool = new List<T>();
|
|
|
|
public T Get()
|
|
{
|
|
T item;
|
|
|
|
if (pool.Count < 1)
|
|
{
|
|
item = default(T);
|
|
}
|
|
else
|
|
{
|
|
int index = pool.Count - 1;
|
|
item = pool[index];
|
|
pool.RemoveAt(index);
|
|
}
|
|
|
|
return item;
|
|
}
|
|
|
|
public void Put(T item)
|
|
{
|
|
if (item == null)
|
|
throw new ArgumentNullException("item");
|
|
|
|
#if DEBUG
|
|
if (pool.IndexOf(item) != -1)
|
|
Debugger.Break();
|
|
#endif
|
|
|
|
pool.Add(item);
|
|
}
|
|
|
|
public int Count
|
|
{
|
|
get { return pool.Count; }
|
|
}
|
|
|
|
public void Clear()
|
|
{
|
|
pool.Clear();
|
|
}
|
|
}
|
|
}
|