Hi, In preparation for HTTPx in the future, I was looking at how to start adding UDP, and: - NIO2 and APR don't have datagram support, the first one is hopeless and the second one is legacy. - It would be better to avoid duplicating the whole NIO connector, but rather add a datagram mode to it. - I think the "best" way is to change NioChannel.sc to be a SelectableChannel, and then use casts (to ByteChannel, etc). The class hierarchy between SocketChannel and DatagramChannel is otherwise rather annoying. - Many of the methods are identical between SocketChannel and DatagramChannel (socket properties, address access, etc etc), but unfortunately they are only on the concrete class. Since I don't think reflection should be used, this means some amount of duplication and casting. - Along the way, I noticed NioChannel.close does sc.socket.close() then sc.close(). Normally that's useless. I'm pretty sure this was done to workaround old bugs that are most likely fixed now (I found references online for Java 4, 5 and 6, but nothing since then). So this could be simplified to just close the SelectableChannel.
Any ideas ? Rémy
