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/*
wearechat - generic multiplayer game with voip
Copyright (C) 2025 metamuffin
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, version 3 of the License only.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
use anyhow::Result;
use log::{debug, info, warn};
use std::{
io::{BufReader, BufWriter, Write},
net::TcpStream,
sync::mpmc::{Receiver, Sender, channel},
thread::spawn,
};
use weareshared::{helper::ReadWrite, packets::Packet};
pub struct Network {
pub packet_recv: Receiver<Packet>,
pub packet_send: Sender<Packet>,
}
impl Network {
pub fn new(sock: TcpStream) -> Self {
info!("starting network threads");
let (packet_send, rx) = channel();
let (tx, packet_recv) = channel();
let sock2 = sock.try_clone().unwrap();
spawn(move || {
if let Err(e) = handle_conn_read(sock, tx) {
warn!("read thread: {e:?}")
}
});
spawn(move || {
if let Err(e) = handle_conn_write(sock2, rx) {
warn!("write thread: {e:?}")
}
});
Self {
packet_recv,
packet_send,
}
}
}
fn handle_conn_read(sock: TcpStream, tx: Sender<Packet>) -> Result<()> {
let mut sock = BufReader::new(sock);
loop {
let packet = Packet::read(&mut sock)?;
debug!("<- {packet:?}");
tx.send(packet)?;
}
}
fn handle_conn_write(sock: TcpStream, rx: Receiver<Packet>) -> Result<()> {
let mut sock = BufWriter::new(sock);
for packet in rx {
debug!("-> {packet:?}");
packet.write(&mut sock)?;
sock.flush()?;
}
Ok(())
}
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