/*
* MIT License
*
* Copyright (c) 2025 Open Media Transport Contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/

using System;
using System.Collections.Generic;

namespace libomtnet
{
    internal class OMTFramePool : OMTBase
    {
        Queue<OMTFrame> pool;
        public OMTFramePool(int count, int maxDataLength, bool resizable)
        {
            pool = new Queue<OMTFrame>();
            for (int i = 0; i < count; i++) {
                pool.Enqueue(new OMTFrame(maxDataLength, resizable));
            }
        }

        protected override void DisposeInternal()
        {
            if (pool != null)
            {
                foreach (OMTFrame frame in pool)
                {
                    if (frame != null)
                    {
                        frame.Dispose();
                    }
                }
                pool.Clear();
            }
            base.DisposeInternal();
        }

        public OMTFrame Get()
        {
            lock (pool)
            {
                if (pool.Count > 0)
                {
                    return pool.Dequeue();
                }                
            }
            return null;
        }

        public void Return(OMTFrame frame)
        {
            lock (pool)
            {
                pool.Enqueue(frame);
            }
        }

        public int Count { get { lock (pool) { return pool.Count; } } }
    }
}