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Introduction to the pool manager

The pool manager internally uses a stack to manage the available objects in the pool. It's important to understand how a pool works. The flow diagram below shows how the pool manager deals with objects:

Customizing a pool manager

Catel implements pooling via the PoolManager<TPoolable> class. This class allows the caller to retrieve an object. There is no need to explicitly derive a class from the PoolManager<TPoolable>. It can be customized though.

Customizing the maximum size

By default, the PoolManager<TPoolable> uses a maximum size of 5 MB per poolable type. If, for this example, the maximum size of byte buffers should be 1 MB, use the code below:

var poolManager = new PoolManager<Buffer4096Poolable>();
poolManager.MaxSize = 1024 * 1024 * 1;

If the

Creating a poolable object

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public class Buffer4096Poolable : IPoolable
{
    private const int BufferSize = 4096;
      protected IPoolManager _poolManager;

     public Buffer4096Poolable()
    {
        Data = new byte[BufferSize];
    }

     public byte[] Data { get; private set; }

     public int Size { get { return BufferSize; } }


    public void Reset()
    {
        var buffer = Data;
        Array.Clear(buffer, 0, buffer.Length);        
    }


    // Implemented explicitly so it can't be called accidentally
    void IPoolable.SetPoolManager(IPoolManager poolManager)
    {
        _poolManager = poolManager;
    }


    public void Dispose()
    {
        _poolManager.ReturnObject(this);
    }
}

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