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use std::sync::Arc;
use clap::Parser;
use easy_parallel::Parallel;
use smol::{channel, future, Executor};
use karyons_net::{Endpoint, Port};
use karyons_p2p::{Backend, Config, PeerID};
#[derive(Parser)]
#[command(author, version, about, long_about = None)]
struct Cli {
/// Optional list of bootstrap peers to start the seeding process.
#[arg(short)]
bootstrap_peers: Vec<Endpoint>,
/// Optional list of peer endpoints for manual connections.
#[arg(short)]
peer_endpoints: Vec<Endpoint>,
/// Optional endpoint for accepting incoming connections.
#[arg(short)]
listen_endpoint: Option<Endpoint>,
/// Optional TCP/UDP port for the discovery service.
#[arg(short)]
discovery_port: Option<Port>,
/// Optional user id
#[arg(long)]
userid: Option<String>,
}
fn main() {
env_logger::init();
let cli = Cli::parse();
let peer_id = match cli.userid {
Some(userid) => PeerID::new(userid.as_bytes()),
None => PeerID::random(),
};
// Create the configuration for the backend.
let config = Config {
listen_endpoint: cli.listen_endpoint,
peer_endpoints: cli.peer_endpoints,
bootstrap_peers: cli.bootstrap_peers,
discovery_port: cli.discovery_port.unwrap_or(0),
..Default::default()
};
// Create a new Backend
let backend = Backend::new(peer_id, config);
let (ctrlc_s, ctrlc_r) = channel::unbounded();
let handle = move || ctrlc_s.try_send(()).unwrap();
ctrlc::set_handler(handle).unwrap();
let (signal, shutdown) = channel::unbounded::<()>();
// Create a new Executor
let ex = Arc::new(Executor::new());
let task = async {
let monitor = backend.monitor().await;
let monitor_task = ex.spawn(async move {
loop {
let event = monitor.recv().await.unwrap();
println!("{}", event);
}
});
// Run the backend
backend.run(ex.clone()).await.unwrap();
// Wait for ctrlc signal
ctrlc_r.recv().await.unwrap();
// Shutdown the backend
backend.shutdown().await;
monitor_task.cancel().await;
drop(signal);
};
// Run four executor threads.
Parallel::new()
.each(0..4, |_| future::block_on(ex.run(shutdown.recv())))
.finish(|| future::block_on(task));
}
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