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use fmt;
use net;
use net::tcp;
use net::ip;
use io;
use os;
use unix::poll;
use bufio;
use drawing;
use packet_reader;
def PORT: u16 = 41460;
type conn = net::socket;
export fn main() void = {
const listener = tcp::listen(ip::ANY_V4, PORT)!;
loop(listener);
};
fn loop(listener: net::socket) void = {
// pollfds[0] is the listener
// pollfds[n>0] corresponds to packet_readers[n-1]
let pollfds: []poll::pollfd = alloc([ poll::pollfd {
fd = listener, events = poll::event::POLLIN, revents = 0
}]);
let packet_readers: []packet_reader::packet_reader = [];
for (true) {
fmt::println("poll.")!;
poll::poll(pollfds, poll::INDEF)!;
if (0 != pollfds[0].revents & poll::event::POLLIN) {
fmt::println("new conn")!;
const new_conn = tcp::accept(pollfds[0].fd)!;
fmt::println("a")!;
append(pollfds, poll::pollfd {
fd = new_conn,
events = poll::event::POLLIN, revents = 0
});
append(packet_readers, packet_reader::new());
fmt::printfln("there are now {},{} conns.",len(pollfds),len(packet_readers))!;
};
for (let i = 1z; i < len(pollfds); i += 1) {
if (0 != pollfds[i].revents & poll::event::POLLIN) {
match (packet_reader::read(&packet_readers[i-1], pollfds[i].fd)) {
case void =>
let j = 1;
for (const packet_bytes => packet_reader::next(&packet_readers[i-1])) {
fmt::printf("#{}:{} got {:2}",i,j,len(packet_bytes))!;
j += 1;
for (let byte .. packet_bytes) fmt::printf(" {:x}",byte)!;
const op = drawing::deser_op(packet_bytes) as drawing::op_circle;
fmt::printfln("\t({:+6},{:+6})",op.0,op.1)!;
for (let k = 1z; k < len(pollfds); k += 1) {
if (k == i) continue;
fmt::printfln("\t -> #{}",k)!;
io::writeall(pollfds[k].fd, packet_bytes)!;
};
};
case let err: io::error =>
fmt::printfln("#{} error: {}",i,io::strerror(err))!;
delete(pollfds[i]);
delete(packet_readers[i-1]);
i -= 1;
case io::EOF =>
fmt::printfln("#{} disconnect",i)!;
delete(pollfds[i]);
delete(packet_readers[i-1]);
i -= 1;
};
};
};
};
};
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