/*https://github.com/dotnet/aspnetcore/blob/main/src/ObjectPool*/

namespace MemoryPools
{    
    public abstract class ObjectPool<T> where T : class
    {
        /// <summary>
        /// Gets an object from the pool if one is available, otherwise creates one.
        /// </summary>
        /// <returns>A <typeparamref name="T"/>.</returns>
        public abstract T Get();

        /// <summary>
        /// Return an object to the pool.
        /// </summary>
        /// <param name="obj">The object to add to the pool.</param>
        public abstract void Return(T obj);
    }

    /// <summary>
    /// Methods for creating <see cref="ObjectPool{T}"/> instances.
    /// </summary>
    public static class ObjectPool
    {
        /// <inheritdoc />
        public static ObjectPool<T> Create<T>(IPooledObjectPolicy<T> policy = null!) where T : class, new()
        {
            var provider = new DefaultObjectPoolProvider();
            return provider.Create(policy ?? new DefaultPooledObjectPolicy<T>());
        }
    }
}