Scope of OpenJDK NIO

[Alan Bateman]

David M. Lloyd wrote:
> :
> Well, just the usual thoughts that come up whenever I deal with NIO:
>
> - DatagramChannels don't have a way to recover the destination address 
> of an incoming datagram (iow, how do we know whether we just received 
> a broadcast packet?)
This one has a long history, mostly because it wasn't feasible to 
implement everywhere. It's a bit of niche requirement but the one 
example that does come up every so often is the DHCP that needs to know 
the interface that a datagram is received on. Michael McMahon (network 
group) put work into this last year with a view to adding support in 
jdk7. Here's a relatively recent mail from him on this topic:
  http://mail.openjdk.java.net/pipermail/net-dev/2008-February/000140.html

So do you use broadcast datagrams in some application? Just curious, as 
perhaps the new multicast support will be interesting.

> - unconnected DatagramChannels don't support scatter/gather
This is a no-brainer that we should do. I'm not aware that anyone has 
ever asked for this but I will create an RFE for this today (I'll send 
the bugID).

-Alan.