CachedBuffer.cs

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using System.IO;
 
namespace Terraria.DataStructures;
 
public class CachedBuffer
{
    public readonly byte[] Data;
 
    public readonly BinaryWriter Writer;
 
    public readonly BinaryReader Reader;
 
    private readonly MemoryStream _memoryStream;
 
    private bool _isActive = true;
 
    public int Length => Data.Length;
 
    public bool IsActive => _isActive;
 
    public CachedBuffer(byte[] data)
    {
        Data = data;
        _memoryStream = new MemoryStream(data);
        Writer = new BinaryWriter(_memoryStream);
        Reader = new BinaryReader(_memoryStream);
    }
 
    internal CachedBuffer Activate()
    {
        _isActive = true;
        _memoryStream.Position = 0L;
        return this;
    }
 
    public void Recycle()
    {
        if (_isActive)
        {
            _isActive = false;
            BufferPool.Recycle(this);
        }
    }
}