// provides access to the "tail space" of this buffer.
// Use GetSpan when possible for better efficiency.
public Memory<byte> GetMemory(int sizeHint = 0)
{
EnsureBufferSpace(sizeHint);
if (memoryManagerLazy == null)
{
memoryManagerLazy = new SliceMemoryManager();
}
memoryManagerLazy.Reset(new Slice(tailSpacePtr, tailSpaceLen));
return memoryManagerLazy.Memory;
}
