[IDEA] Dynamic priority process

[belese]

before writing daemon, i was looking in iptable and that's really what i need,

For polling, i always thinking that it's not a good solution (maybe i'm wrong)

and to react on event i don't find the way to run a script insteadl of log, accept,...) in iptables.
after search, i've read it's not possible,
the work around i've seen (and if i understand you, is what you explain),
is to use LOG in iptables, and the daemon read log file, and when specific log is writed, react on this.
this is what you explain, right?

fo netfilter, no sure iv'e understand, only thing i need is tcp (maybe udp) socket state changed.

my idea is :
socket 9091 is CONNECTED, i've a transmission http session, i can renice transmission lower.
socket 9091 is LISTEN, no transmission session, renice transmission higher.

so why bandwith could be usefull in this ?