private BufferSegment AllocateSegment(int sizeHint)
{
BufferSegment newSegment = CreateSegmentUnsynchronized();
if (_pool is null)
{
// Use the array pool
newSegment.SetMemory(ArrayPool <byte> .Shared.Rent(GetSegmentSize(sizeHint)));
}
else if (sizeHint <= _pool.MaxBufferSize)
{
// Use the specified pool if it fits
newSegment.SetMemory(_pool.Rent(GetSegmentSize(sizeHint, _pool.MaxBufferSize)));
}
else
{
// We can't use the pool so allocate an array
newSegment.SetUnownedMemory(new byte[sizeHint]);
}
return(newSegment);
}