actix-net/actix-server/examples/shutdown-signal.rs

50 lines
1.5 KiB
Rust

//! Demonstrates use of the `ServerBuilder::shutdown_signal` method using `tokio-util`s
//! `CancellationToken` helper using a nonsensical timer. In practice, this cancellation token would
//! be wired throughout your application and typically triggered by OS signals elsewhere.
use std::{io, time::Duration};
use actix_rt::net::TcpStream;
use actix_server::Server;
use actix_service::fn_service;
use tokio_util::sync::CancellationToken;
async fn run(stop_signal: CancellationToken) -> io::Result<()> {
pretty_env_logger::formatted_timed_builder()
.parse_env(pretty_env_logger::env_logger::Env::default().default_filter_or("info"));
let addr = ("127.0.0.1", 8080);
tracing::info!("starting server on port: {}", &addr.0);
// let (tx, rx) = tokio::sync::oneshot::channel::<()>();
// let (tx, mut rx) = tokio::sync::broadcast::channel::<()>(1);
Server::build()
.bind("shutdown-signal", addr, || {
fn_service(|_stream: TcpStream| async { Ok::<_, io::Error>(()) })
})?
.shutdown_signal(stop_signal.cancelled_owned())
// .shutdown_signal(async move {
// rx.await;
// // rx.recv().await;
// })
.run()
.await
}
#[tokio::main]
async fn main() -> io::Result<()> {
let stop_signal = CancellationToken::new();
tokio::spawn({
let stop_signal = stop_signal.clone();
async move {
tokio::time::sleep(Duration::from_secs(10)).await;
stop_signal.cancel();
}
});
run(stop_signal).await?;
Ok(())
}