// This doesn't do argument checking. Necessary for SetLength, which must
// set the file pointer beyond the end of the file. This will update the
// internal position
protected long SeekCore(SafeFileHandle fileHandle, long offset, SeekOrigin origin, bool closeInvalidHandle = false)
{
Debug.Assert(!fileHandle.IsClosed && _canSeek, "!fileHandle.IsClosed && _canSeek");
return(_filePosition = FileStreamHelpers.Seek(fileHandle, _path, offset, origin, closeInvalidHandle));
}
