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// Copyleft (ɔ) 2021-2021 The Whirlsplash Collective
// SPDX-License-Identifier: GPL-3.0-only
#![feature(
type_ascription,
hash_set_entry,
type_name_of_val,
decl_macro,
proc_macro_hygiene
)]
#![warn(rust_2018_idioms)]
#![recursion_limit = "128"]
#[macro_use]
extern crate log;
#[macro_use]
extern crate async_trait;
pub mod cmd;
mod interaction;
pub mod net;
pub mod distributor;
pub mod hub;
mod packet_parser;
mod types;
use std::{error::Error, fmt, net::SocketAddr, sync::Arc};
use tokio::{
net::{TcpListener, TcpStream},
sync::Mutex,
};
use crate::interaction::shared::Shared;
#[derive(Debug)]
pub enum ServerType {
AnonRoomServer,
AnonUserServer,
AutoServer,
RoomServer,
UserServer,
}
// https://stackoverflow.com/a/32712140/14452787
impl fmt::Display for ServerType {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "{:?}", self) }
}
#[async_trait]
pub trait Server {
async fn listen(address: &str, server_type: ServerType) -> Result<(), Box<dyn Error>> {
let listener = TcpListener::bind(address).await?;
let state = Arc::new(Mutex::new(Shared::new()));
let mut counter = 0;
info!(
"server of type {} now listening at {}",
server_type.to_string(),
address
);
loop {
let (stream, address) = listener.accept().await?;
counter += 1;
let state = Arc::clone(&state);
debug!("accepted client at {}", address);
tokio::spawn(async move {
if let Err(e) = Self::handle(state, stream, address, counter).await {
error!("an error occurred: {}", e);
}
if std::env::var("EXIT_ON_CLIENT_DISCONNECT").unwrap_or_else(|_| "false".to_string())
== "true"
{
std::process::exit(0);
}
});
}
}
async fn handle(
state: Arc<Mutex<Shared>>,
stream: TcpStream,
_address: SocketAddr,
count: usize,
) -> Result<(), Box<dyn Error>>;
}
|