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mirror of https://github.com/actix/examples synced 2025-02-02 09:39:03 +01:00

Encapsulate app state in Arc<Mutex<...>> (#54)

This commit is contained in:
Jan Niehusmann 2018-10-14 19:56:25 +02:00 committed by Douman
parent 0a2a356e7a
commit c6f092fc80

View File

@ -15,21 +15,22 @@ extern crate actix;
extern crate actix_web;
extern crate env_logger;
use std::cell::Cell;
use std::sync::Arc;
use std::sync::Mutex;
use actix_web::{middleware, server, App, HttpRequest, HttpResponse};
/// Application state
struct AppState {
counter: Cell<usize>,
counter: Arc<Mutex<usize>>,
}
/// simple handle
fn index(req: &HttpRequest<AppState>) -> HttpResponse {
println!("{:?}", req);
req.state().counter.set(req.state().counter.get() + 1);
*(req.state().counter.lock().unwrap()) += 1;
HttpResponse::Ok().body(format!("Num of requests: {}", req.state().counter.get()))
HttpResponse::Ok().body(format!("Num of requests: {}", req.state().counter.lock().unwrap()))
}
fn main() {
@ -38,7 +39,7 @@ fn main() {
let sys = actix::System::new("ws-example");
server::new(|| {
App::with_state(AppState{counter: Cell::new(0)}) // <- create app with state
App::with_state(AppState{counter: Arc::new(Mutex::new(0))}) // <- create app with state
// enable logger
.middleware(middleware::Logger::default())
// register simple handler, handle all methods