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use super::*;
use async_trait::async_trait;
use std::{io, sync::Arc};
use tokio::{
net,
sync::{mpsc, watch},
};
#[derive(Debug)]
pub struct UdpCltSender(Arc<net::UdpSocket>);
#[derive(Debug)]
pub struct UdpCltReceiver(Arc<net::UdpSocket>);
#[async_trait]
impl UdpSender for UdpCltSender {
async fn send(&self, data: &[u8]) -> io::Result<()> {
self.0.send(data).await?;
Ok(())
}
}
#[async_trait]
impl UdpReceiver for UdpCltReceiver {
async fn recv(&mut self) -> io::Result<Vec<u8>> {
let mut buffer = Vec::new();
buffer.resize(UDP_PKT_SIZE, 0);
let len = self.0.recv(&mut buffer).await?;
buffer.truncate(len);
Ok(buffer)
}
}
#[derive(Debug)]
pub struct CltReceiver(mpsc::UnboundedReceiver<Result<Pkt<'static>, Error>>);
impl CltReceiver {
pub async fn recv_rudp(&mut self) -> Option<Result<Pkt<'static>, Error>> {
self.0.recv().await
}
}
pub type CltSender = Arc<Sender<UdpCltSender>>;
pub type CltWorker = Worker<UdpCltSender, UdpCltReceiver>;
pub async fn connect(addr: &str) -> io::Result<(CltSender, CltReceiver, CltWorker)> {
let sock = Arc::new(net::UdpSocket::bind("0.0.0.0:0").await?);
sock.connect(addr).await?;
let (close_tx, close_rx) = watch::channel(false);
let (pkt_tx, pkt_rx) = mpsc::unbounded_channel();
let sender = Sender::new(
UdpCltSender(Arc::clone(&sock)),
close_tx,
PeerID::Srv as u16,
PeerID::Nil as u16,
);
Ok((
Arc::clone(&sender),
CltReceiver(pkt_rx),
Worker::new(UdpCltReceiver(sock), close_rx, sender, pkt_tx),
))
}
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