diff --git a/examples/state.rs b/examples/state.rs new file mode 100644 index 00000000..4438959e --- /dev/null +++ b/examples/state.rs @@ -0,0 +1,56 @@ +#![feature(async_await)] +#![deny(warnings)] + +use std::sync::{Arc, atomic::{AtomicUsize, Ordering}}; + +use hyper::{Body, Error, Response, Server}; +use hyper::service::{make_service_fn, service_fn}; + +#[hyper::rt::main] +async fn main() { + pretty_env_logger::init(); + + let addr = ([127, 0, 0, 1], 3000).into(); + + // For the most basic of state, we just share a counter, that increments + // with each request, and we send its value back in the response. + let counter = Arc::new(AtomicUsize::new(0)); + + // The closure inside `make_service_fn` is run for each connection, + // creating a 'service' to handle requests for that specific connection. + let make_service = make_service_fn(move |_| { + // While the state was moved into the make_service closure, + // we need to clone it here because this closure is called + // once for every connection. + // + // Each connection could send multiple requests, so + // the `Service` needs a clone to handle later requests. + let counter = counter.clone(); + + async move { + // This is the `Service` that will handle the connection. + // `service_fn` is a helper to convert a function that + // returns a Response into a `Service`. + Ok::<_, Error>(service_fn(move |_req| { + // Get the current count, and also increment by 1, in a single + // atomic operation. + let count = counter.fetch_add(1, Ordering::AcqRel); + async move { + Ok::<_, Error>( + Response::new(Body::from(format!("Request #{}", count))) + ) + } + })) + } + }); + + let server = Server::bind(&addr) + .serve(make_service); + + println!("Listening on http://{}", addr); + + if let Err(e) = server.await { + eprintln!("server error: {}", e); + } +} + diff --git a/examples_disabled/state.rs b/examples_disabled/state.rs deleted file mode 100644 index 55f6d93a..00000000 --- a/examples_disabled/state.rs +++ /dev/null @@ -1,55 +0,0 @@ -#![deny(warnings)] -extern crate hyper; -extern crate pretty_env_logger; -extern crate serde_json; - -use std::sync::{Arc, atomic::{AtomicUsize, Ordering}}; - -use hyper::{Body, Response, Server}; -use hyper::service::service_fn_ok; -use hyper::rt::{self, Future}; - -fn main() { - pretty_env_logger::init(); - - let addr = ([127, 0, 0, 1], 3000).into(); - - // For the most basic of state, we just share a counter, that increments - // with each request, and we send its value back in the response. - let counter = Arc::new(AtomicUsize::new(0)); - - // new_service is run for each connection, creating a 'service' - // to handle requests for that specific connection. - let new_service = move || { - // While the state was moved into the new_service closure, - // we need to clone it here because this closure is called - // once for every connection. - // - // Each connection could send multiple requests, so - // the `Service` needs a clone to handle later requests. - let counter = counter.clone(); - - // This is the `Service` that will handle the connection. - // `service_fn_ok` is a helper to convert a function that - // returns a Response into a `Service`. - // - // If you wanted to return a `Future` of a `Response`, such as because - // you wish to load data from a database or do other things, you - // could change this to `service_fn` instead. - service_fn_ok(move |_req| { - // Get the current count, and also increment by 1, in a single - // atomic operation. - let count = counter.fetch_add(1, Ordering::AcqRel); - Response::new(Body::from(format!("Request #{}", count))) - }) - }; - - let server = Server::bind(&addr) - .serve(new_service) - .map_err(|e| eprintln!("server error: {}", e)); - - println!("Listening on http://{}", addr); - - rt::run(server); -} -