PointerMemoryManager.cs

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namespace System.Buffers;
 
internal class PointerMemoryManager<T> : MemoryManager<T> where T : struct
{
    private unsafe readonly void* _pointer;
 
    private readonly int _length;
 
    internal unsafe PointerMemoryManager(void* pointer, int length)
    {
        _pointer = pointer;
        _length = length;
    }
 
    protected override void Dispose(bool disposing)
    {
    }
 
    public unsafe override Span<T> GetSpan()
    {
        return new Span<T>(_pointer, _length);
    }
 
    public override MemoryHandle Pin(int elementIndex = 0)
    {
        throw new NotSupportedException();
    }
 
    public override void Unpin()
    {
    }
}