/// <exception cref="System.IO.IOException"></exception>
internal ByteArrayWindow QuickCopy(PackFile p, long pos, long cnt)
{
Pin(p, pos);
if (window is ByteArrayWindow && window.Contains(p, pos + (cnt - 1)))
{
return((ByteArrayWindow)window);
}
return(null);
}
/// <exception cref="System.IO.IOException"></exception>
internal void Pin(PackFile pack, long position)
{
ByteWindow w = window;
if (w == null || !w.Contains(pack, position))
{
// If memory is low, we may need what is in our window field to
// be cleaned up by the GC during the get for the next window.
// So we always clear it, even though we are just going to set
// it again.
//
window = null;
window = WindowCache.Get(pack, position);
}
}