LightObjectPool

What is LightObjectPool ?

A simple, light weight, thread safe object pool.

It also supports pooling of disposable types, managing the life time of pooled objects and performing early dispose when possible. Pool implementations implement a simple common interface, so they can be mocked or replaced with alternatives.

Supported Platforms

Currently;

• .Net Framework 4.0+
• .Net Standard 2.0+

How do I use it?

We got your samples right here

Install the Nuget package like this;

    PM> Install-Package LightObjectPool

Or reference the LightObjectPool.dll assembly that matches your app's platform.

Creating a Pool

Create a PoolPolicy instance to configure options and behaviour for the pool, T is the type of item being pooled. Create a new Pool instance passing the pool policy you created. Pool policies can be re-used across pools so long as the assigned Function and Action delegates are thread-safe.

    using LightObjectPool;
    //  Is for a StringBuilder pool.
    //  Synchronously resets the StringBuilder state when the item is returned to the pool.
    //  Pools at most 10 instances
    
    var pool = LightObjectPool.Pool.Create<StringBuilder>((s) => s.Clear(), 10);

Using a Pool

Use the GET method to retrieve an instance from the pool. Use the RETURN method to return an instance to the pool so it can be re-used.

    //Retrieve an instance from the pool
    var stringbuilder = pool.Get();
 
    //Do something with the stringbuilder   
    
    //Return the string builder to the pool
    pool.Return(stringbuilder);    

Using a Pool with Auto-Return Semantics

Instead of creating a pool for your specific type, create the pool for PooledObject where T is the type you actually want. Then you can use auto-return like this;

    //Retrieve an instance from the pool
    using (var pooledItem= pool.GetPooledObject())
    {
        //pooledItem.Value is the object you actually want.
        //If the pool is for tyhe type PooledObject<System.Text.StringBuilder> then
        //you can access the string builder instance like this;
        pooledItem.Value.Append("Some text to add to the builder");
        
    } // The item will automatically be returned to the pool here.