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use futures::SinkExt; use std::error::Error; use std::net::ToSocketAddrs; use std::sync::Arc; use async_trait::async_trait; use tokio::net::{TcpListener, TcpStream}; use tokio::stream::StreamExt; use tokio_util::codec::Framed; use crate::app::App; use crate::core::context::Context; use crate::core::http::Http; use crate::core::request::Request; use crate::core::response::Response; // use std::thread; // use num_cpus; // use net2::TcpBuilder; // #[cfg(not(windows))] // use net2::unix::UnixTcpBuilderExt; use crate::server::ThrusterServer; pub struct Server<T: 'static + Context<Response = Response> + Send, S: Send> { app: App<Request, T, S>, } // impl<T: 'static + Context<Response = Response> + Send> Server<T> { // /// // /// Starts the app with the default tokio runtime execution model // /// // pub fn start_work_stealing_optimized(self, host: &str, port: u16) { // self.start(host, port); // } // /// // /// Starts the app with a thread pool optimized for small requests and quick timeouts. This // /// is done internally by spawning a separate thread for each reactor core. This is valuable // /// if all server endpoints are similar in their load, as work is divided evenly among threads. // /// As seanmonstar points out though, this is a very specific use case and might not be useful // /// for everyday work loads.alloc // /// // /// See the discussion here for more information: // /// // /// https://users.rust-lang.org/t/getting-tokio-to-match-actix-web-performance/18659/7 // /// // pub fn start_small_load_optimized(mut self, host: &str, port: u16) { // let addr = (host, port).to_socket_addrs().unwrap().next().unwrap(); // let mut threads = Vec::new(); // self.app._route_parser.optimize(); // let arc_app = Arc::new(self.app); // for _ in 0..num_cpus::get() { // let arc_app = arc_app.clone(); // threads.push(thread::spawn(move || { // let mut runtime = tokio::runtime::current_thread::Runtime::new().unwrap(); // let server = async || { // let listener = { // let builder = TcpBuilder::new_v4().unwrap(); // #[cfg(not(windows))] // builder.reuse_address(true).unwrap(); // #[cfg(not(windows))] // builder.reuse_port(true).unwrap(); // builder.bind(addr).unwrap(); // builder.listen(2048).unwrap() // }; // let listener = TcpListener::from_std(listener, &tokio::reactor::Handle::default()).unwrap(); // listener.incoming().for_each(move |socket| { // process(Arc::clone(&arc_app), socket); // Ok(()) // }) // .map_err(|err| eprintln!("accept error = {:?}", err)) // }; // runtime.spawn(server); // runtime.run().unwrap(); // })); // } // println!("Server running on {}", addr); // for thread in threads { // thread.join().unwrap(); // } // fn process<T: Context<Response = Response> + Send>(app: Arc<App<Request, T>>, socket: TcpStream) { // let framed = Framed::new(socket, Http); // let (tx, rx) = framed.split(); // let task = tx.send_all(rx.and_then(move |request: Request| { // let matched = app.resolve_from_method_and_path(request.method(), request.path()); // app.resolve(request, matched) // })); // // Spawn the task that handles the connection. // tokio::spawn(task); // } // } // } #[async_trait] impl<T: Context<Response = Response> + Send, S: 'static + Send + Sync> ThrusterServer for Server<T, S> { type Context = T; type Response = Response; type Request = Request; type State = S; fn new(app: App<Self::Request, T, S>) -> Self { Server { app } } async fn build(mut self, host: &str, port: u16) { let addr = (host, port).to_socket_addrs().unwrap().next().unwrap(); self.app._route_parser.optimize(); let mut listener = TcpListener::bind(&addr).await.unwrap(); let mut incoming = listener.incoming(); let arc_app = Arc::new(self.app); while let Some(Ok(stream)) = incoming.next().await { let cloned = arc_app.clone(); tokio::spawn(async move { if let Err(e) = process(cloned, stream).await { println!("failed to process connection; error = {}", e); } }); } async fn process<T: Context<Response = Response> + Send, S: Send>( app: Arc<App<Request, T, S>>, socket: TcpStream, ) -> Result<(), Box<dyn Error>> { let mut framed = Framed::new(socket, Http); while let Some(request) = framed.next().await { match request { Ok(request) => { let matched = app.resolve_from_method_and_path(request.method(), request.path()); let response = app.resolve(request, matched).await?; framed.send(response).await?; } Err(e) => return Err(e.into()), } } Ok(()) } } }