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// TODO: This doesn't pass on android 64bit CI...
// Figure out why!
#![cfg(not(target_os = "android"))]
use mio::{Events, Poll, PollOpt, Ready, Token};
use mio::net::UdpSocket;
use bytes::{Buf, MutBuf, RingBuf, SliceBuf};
use std::str;
use std::net::IpAddr;
use localhost;
const LISTENER: Token = Token(0);
const SENDER: Token = Token(1);
pub struct UdpHandler {
tx: UdpSocket,
rx: UdpSocket,
msg: &'static str,
buf: SliceBuf<'static>,
rx_buf: RingBuf,
localhost: IpAddr,
shutdown: bool,
}
impl UdpHandler {
fn new(tx: UdpSocket, rx: UdpSocket, msg: &'static str) -> UdpHandler {
let sock = UdpSocket::bind(&"127.0.0.1:12345".parse().unwrap()).unwrap();
UdpHandler {
tx,
rx,
msg,
buf: SliceBuf::wrap(msg.as_bytes()),
rx_buf: RingBuf::new(1024),
localhost: sock.local_addr().unwrap().ip(),
shutdown: false,
}
}
fn handle_read(&mut self, _: &mut Poll, token: Token, _: Ready) {
if let LISTENER = token {
debug!("We are receiving a datagram now...");
match unsafe { self.rx.recv_from(self.rx_buf.mut_bytes()) } {
Ok((cnt, addr)) => {
unsafe { MutBuf::advance(&mut self.rx_buf, cnt); }
assert_eq!(addr.ip(), self.localhost);
}
res => panic!("unexpected result: {:?}", res),
}
assert!(str::from_utf8(self.rx_buf.bytes()).unwrap() == self.msg);
self.shutdown = true;
}
}
fn handle_write(&mut self, _: &mut Poll, token: Token, _: Ready) {
if let SENDER = token {
let addr = self.rx.local_addr().unwrap();
let cnt = self.tx.send_to(self.buf.bytes(), &addr).unwrap();
self.buf.advance(cnt);
}
}
}
#[test]
pub fn test_multicast() {
drop(::env_logger::init());
debug!("Starting TEST_UDP_CONNECTIONLESS");
let mut poll = Poll::new().unwrap();
let addr = localhost();
let any = "0.0.0.0:0".parse().unwrap();
let tx = UdpSocket::bind(&any).unwrap();
let rx = UdpSocket::bind(&addr).unwrap();
info!("Joining group 227.1.1.100");
let any = "0.0.0.0".parse().unwrap();
rx.join_multicast_v4(&"227.1.1.100".parse().unwrap(), &any).unwrap();
info!("Joining group 227.1.1.101");
rx.join_multicast_v4(&"227.1.1.101".parse().unwrap(), &any).unwrap();
info!("Registering SENDER");
poll.register(&tx, SENDER, Ready::writable(), PollOpt::edge()).unwrap();
info!("Registering LISTENER");
poll.register(&rx, LISTENER, Ready::readable(), PollOpt::edge()).unwrap();
let mut events = Events::with_capacity(1024);
let mut handler = UdpHandler::new(tx, rx, "hello world");
info!("Starting event loop to test with...");
while !handler.shutdown {
poll.poll(&mut events, None).unwrap();
for event in &events {
if event.readiness().is_readable() {
handler.handle_read(&mut poll, event.token(), event.readiness());
}
if event.readiness().is_writable() {
handler.handle_write(&mut poll, event.token(), event.readiness());
}
}
}
}
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