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use std::sync::Arc;
use clap::Parser;
use karyon_p2p::{
endpoint::{Endpoint, Port},
keypair::{KeyPair, KeyPairType},
Backend, Config,
};
/// Returns an estimate of the default amount of parallelism a program should use.
/// see `std::thread::available_parallelism`
pub fn available_parallelism() -> usize {
std::thread::available_parallelism()
.map(std::num::NonZeroUsize::get)
.unwrap_or(1)
}
#[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>,
}
fn main() {
env_logger::init();
let cli = Cli::parse();
let key_pair = KeyPair::generate(&KeyPairType::Ed25519);
// 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 tokio runtime
let rt = Arc::new(
tokio::runtime::Builder::new_multi_thread()
.worker_threads(available_parallelism())
.enable_all()
.build()
.unwrap(),
);
// Create a new Backend
let backend = Backend::new(&key_pair, config, rt.clone().into());
let (ctrlc_s, ctrlc_r) = async_channel::unbounded();
let handle = move || ctrlc_s.try_send(()).unwrap();
ctrlc::set_handler(handle).unwrap();
rt.block_on(async {
// Run the backend
backend.run().await.unwrap();
// Wait for ctrlc signal
ctrlc_r.recv().await.unwrap();
// Shutdown the backend
backend.shutdown().await;
});
}
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