66 lines
2.1 KiB
Rust
66 lines
2.1 KiB
Rust
//! This example demonstrates how to make multiple outgoing connections on a single UDP socket.
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//!
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//! Checkout the `README.md` for guidance.
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use std::{
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error::Error,
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net::{IpAddr, Ipv4Addr, SocketAddr},
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};
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use quinn::Endpoint;
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mod common;
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use common::{make_client_endpoint, make_server_endpoint};
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use rustls::pki_types::CertificateDer;
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn Error + Send + Sync + 'static>> {
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let addr1 = SocketAddr::new(IpAddr::V4(Ipv4Addr::LOCALHOST), 5000);
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let addr2 = SocketAddr::new(IpAddr::V4(Ipv4Addr::LOCALHOST), 5001);
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let addr3 = SocketAddr::new(IpAddr::V4(Ipv4Addr::LOCALHOST), 5002);
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let server1_cert = run_server(addr1)?;
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let server2_cert = run_server(addr2)?;
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let server3_cert = run_server(addr3)?;
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let client = make_client_endpoint(
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SocketAddr::new(IpAddr::V4(Ipv4Addr::LOCALHOST), 0),
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&[&server1_cert, &server2_cert, &server3_cert],
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)?;
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// connect to multiple endpoints using the same socket/endpoint
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tokio::join!(
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run_client(&client, addr1),
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run_client(&client, addr2),
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run_client(&client, addr3),
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);
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// Make sure the server has a chance to clean up
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client.wait_idle().await;
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Ok(())
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}
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/// Runs a QUIC server bound to given address and returns server certificate.
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fn run_server(
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addr: SocketAddr,
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) -> Result<CertificateDer<'static>, Box<dyn Error + Send + Sync + 'static>> {
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let (endpoint, server_cert) = make_server_endpoint(addr)?;
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// accept a single connection
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tokio::spawn(async move {
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let connection = endpoint.accept().await.unwrap().await.unwrap();
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println!(
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"[server] incoming connection: addr={}",
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connection.remote_address()
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);
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});
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Ok(server_cert)
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}
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/// Attempt QUIC connection with the given server address.
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async fn run_client(endpoint: &Endpoint, server_addr: SocketAddr) {
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let connect = endpoint.connect(server_addr, "localhost").unwrap();
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let connection = connect.await.unwrap();
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println!("[client] connected: addr={}", connection.remote_address());
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}
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