using MemoryPools.Memory;
using System;
using System.Runtime.CompilerServices;

/*https://github.com/sidristij/memory-pools*/

namespace MemoryPools
{
    public static class Pool<T> where T : class, new()
    {
        private static readonly DefaultObjectPool<T> _freeObjectsQueue = new DefaultObjectPool<T>(new DefaultPooledObjectPolicy<T>());

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static T Get()
        {
            return _freeObjectsQueue.Get();
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static void Return<T1>(T1 instance) where T1 : T
        {
            if (instance != null)
                _freeObjectsQueue.Return(instance);
        }
    }

    public static class Pool
    {
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static T Get<T>() where T : class, new()
        {
            return Pool<T>.Get();
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static void Return<T>(T instance) where T : class, new()
        {
            Pool<T>.Return(instance);
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static CountdownMemoryOwner<T> GetBuffer<T>(int size)
        {
            return InternalArraysPool.Rent<T>(size, false);
        }

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static CountdownMemoryOwner<T> GetBufferFrom<T>(ReadOnlySpan<T> source)
        {
            return InternalArraysPool.RentFrom(source, false);
        }
    }
}