[core-dev] BitTorrent & NIO

I have reached the point where my BT implementation is almost working (I still 
need to hammer out the bugs and find a smart way to manage the bandwidth usage 
of concurrent blocking and non-blocking io operations). However I  have a little 
problem:
There is absolutely no way of implementing BT using blocking IO. I need to keep 
~100 connections open all the time to have the torrent perform decently and I 
cannot afford to have my write operations block for even a second. So far I 
simply converted the Acceptor and Sockets classes simply to use Sun's NIO 
implementation which works well for the rest of LimeWire too on Java 1.5.
In addition I had to modify the downloading code to use long variables instead 
of ints which of course breaks the compatibility with older downloads.dat files.

mfg
gregorio
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