MemoryManager.cs

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using System.Runtime.CompilerServices;
 
namespace System.Buffers;
 
public abstract class MemoryManager<T> : IMemoryOwner<T>, IDisposable, IPinnable
{
    public virtual Memory<T> Memory => new Memory<T>(this, GetSpan().Length);
 
    public abstract Span<T> GetSpan();
 
    public abstract MemoryHandle Pin(int elementIndex = 0);
 
    public abstract void Unpin();
 
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    protected Memory<T> CreateMemory(int length)
    {
        return new Memory<T>(this, length);
    }
 
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    protected Memory<T> CreateMemory(int start, int length)
    {
        return new Memory<T>(this, start, length);
    }
 
    protected internal virtual bool TryGetArray(out ArraySegment<T> segment)
    {
        segment = default(ArraySegment<T>);
        return false;
    }
 
    void IDisposable.Dispose()
    {
        Dispose(disposing: true);
        GC.SuppressFinalize(this);
    }
 
    protected abstract void Dispose(bool disposing);
}