mirror of
https://github.com/actix/actix-web.git
synced 2024-12-23 00:26:34 +00:00
subscriber to os signals automatically
This commit is contained in:
parent
473ec38439
commit
3ed9e872ad
17 changed files with 81 additions and 214 deletions
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@ -106,7 +106,6 @@ members = [
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"examples/json",
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"examples/hello-world",
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"examples/multipart",
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"examples/signals",
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"examples/state",
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"examples/template_tera",
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"examples/tls",
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@ -3,7 +3,6 @@
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Actix web is a small, fast, down-to-earth, open source rust web framework.
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```rust,ignore
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extern crate actix;
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extern crate actix_web;
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use actix_web::*;
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@ -12,14 +11,11 @@ fn index(req: HttpRequest) -> String {
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}
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fn main() {
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let sys = actix::System::new("readme");
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HttpServer::new(
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|| Application::new()
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.resource("/{name}", |r| r.f(index)))
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.bind("127.0.0.1:8080").unwrap()
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.start();
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sys.run();
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.run();
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}
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```
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@ -10,7 +10,7 @@ use futures::Stream;
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use actix_web::*;
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use actix_web::middleware::RequestSession;
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use futures::future::{FutureResult, result};
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use actix::actors::signal::{ProcessSignals, Subscribe};
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/// simple handler
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fn index(mut req: HttpRequest) -> Result<HttpResponse> {
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@ -94,10 +94,6 @@ fn main() {
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.bind("0.0.0.0:8080").unwrap()
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.start();
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// Subscribe to unix signals
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let signals = actix::Arbiter::system_registry().get::<ProcessSignals>();
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signals.send(Subscribe(addr.subscriber()));
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println!("Starting http server: 127.0.0.1:8080");
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let _ = sys.run();
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}
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@ -18,7 +18,6 @@ extern crate env_logger;
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use actix::*;
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use actix_web::*;
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use actix::actors::signal::{ProcessSignals, Subscribe};
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use diesel::prelude::*;
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use futures::future::Future;
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@ -69,10 +68,6 @@ fn main() {
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.bind("127.0.0.1:8080").unwrap()
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.start();
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// Subscribe to unix signals
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let signals = actix::Arbiter::system_registry().get::<ProcessSignals>();
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signals.send(Subscribe(_addr.subscriber()));
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println!("Started http server: 127.0.0.1:8080");
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let _ = sys.run();
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}
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@ -8,7 +8,6 @@ extern crate serde_json;
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#[macro_use] extern crate json;
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use actix_web::*;
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use actix::actors::signal::{ProcessSignals, Subscribe};
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use bytes::BytesMut;
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use futures::{Future, Stream};
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@ -95,10 +94,6 @@ fn main() {
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.shutdown_timeout(1)
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.start();
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// Subscribe to unix signals
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let signals = actix::Arbiter::system_registry().get::<ProcessSignals>();
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signals.send(Subscribe(addr.subscriber()));
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println!("Started http server: 127.0.0.1:8080");
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let _ = sys.run();
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}
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@ -6,7 +6,6 @@ extern crate futures;
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use actix::*;
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use actix_web::*;
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use actix::actors::signal::{ProcessSignals, Subscribe};
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use futures::{Future, Stream};
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use futures::future::{result, Either};
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@ -55,10 +54,6 @@ fn main() {
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.bind("127.0.0.1:8080").unwrap()
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.start();
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// Subscribe to unix signals
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let signals = actix::Arbiter::system_registry().get::<ProcessSignals>();
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signals.send(Subscribe(addr.subscriber()));
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println!("Starting http server: 127.0.0.1:8080");
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let _ = sys.run();
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}
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@ -1,15 +0,0 @@
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[package]
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name = "signals"
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version = "0.1.0"
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authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
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workspace = "../.."
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[[bin]]
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name = "server"
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path = "src/main.rs"
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[dependencies]
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env_logger = "*"
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futures = "0.1"
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actix = "0.4"
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actix-web = { path = "../../" }
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@ -1,17 +0,0 @@
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# Signals
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This example shows how to handle Unix signals and properly stop http server. This example does not work with Windows.
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## Usage
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```bash
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cd actix-web/examples/signal
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cargo run (or ``cargo watch -x run``)
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# Started http server: 127.0.0.1:8080
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# CTRL+C
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# INFO:actix_web::server: SIGINT received, exiting
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# INFO:actix_web::worker: Shutting down http worker, 0 connections
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# INFO:actix_web::worker: Shutting down http worker, 0 connections
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# INFO:actix_web::worker: Shutting down http worker, 0 connections
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# INFO:actix_web::worker: Shutting down http worker, 0 connections
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```
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@ -1,45 +0,0 @@
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extern crate actix;
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extern crate actix_web;
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extern crate futures;
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extern crate env_logger;
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use actix::*;
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use actix_web::*;
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use actix::actors::signal::{ProcessSignals, Subscribe};
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struct MyWebSocket;
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impl Actor for MyWebSocket {
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type Context = HttpContext<Self>;
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}
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impl StreamHandler<ws::Message> for MyWebSocket {}
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impl Handler<ws::Message> for MyWebSocket {
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type Result = ();
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fn handle(&mut self, _: ws::Message, _: &mut Self::Context) {
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{}
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}
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}
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fn main() {
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::std::env::set_var("RUST_LOG", "actix_web=info");
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let _ = env_logger::init();
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let sys = actix::System::new("signals-example");
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let addr = HttpServer::new(|| {
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Application::new()
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// enable logger
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.middleware(middleware::Logger::default())
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.resource("/ws/", |r| r.f(|req| ws::start(req, MyWebSocket)))
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.resource("/", |r| r.h(httpcodes::HTTPOk))})
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.bind("127.0.0.1:8080").unwrap()
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.start();
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// Subscribe to unix signals
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let signals = actix::Arbiter::system_registry().get::<ProcessSignals>();
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signals.send(Subscribe(addr.subscriber()));
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println!("Started http server: 127.0.0.1:8080");
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let _ = sys.run();
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}
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@ -11,7 +11,6 @@ use std::cell::Cell;
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use actix::*;
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use actix_web::*;
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use actix::actors::signal::{ProcessSignals, Subscribe};
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/// Application state
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struct AppState {
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@ -74,10 +73,6 @@ fn main() {
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.bind("127.0.0.1:8080").unwrap()
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.start();
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// Subscribe to unix signals
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let signals = actix::Arbiter::system_registry().get::<ProcessSignals>();
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signals.send(Subscribe(addr.subscriber()));
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println!("Started http server: 127.0.0.1:8080");
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let _ = sys.run();
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}
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@ -5,7 +5,6 @@ extern crate env_logger;
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extern crate tera;
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use actix_web::*;
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use actix::actors::signal::{ProcessSignals, Subscribe};
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struct State {
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@ -43,10 +42,6 @@ fn main() {
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.bind("127.0.0.1:8080").unwrap()
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.start();
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// Subscribe to unix signals
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let signals = actix::Arbiter::system_registry().get::<ProcessSignals>();
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signals.send(Subscribe(addr.subscriber()));
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println!("Started http server: 127.0.0.1:8080");
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let _ = sys.run();
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}
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@ -7,7 +7,7 @@ use std::fs::File;
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use std::io::Read;
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use actix_web::*;
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use actix::actors::signal::{ProcessSignals, Subscribe};
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/// somple handle
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fn index(req: HttpRequest) -> Result<HttpResponse> {
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@ -46,10 +46,6 @@ fn main() {
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.bind("127.0.0.1:8443").unwrap()
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.start_ssl(&pkcs12).unwrap();
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// Subscribe to unix signals
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let signals = actix::Arbiter::system_registry().get::<ProcessSignals>();
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signals.send(Subscribe(addr.subscriber()));
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println!("Started http server: 127.0.0.1:8443");
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let _ = sys.run();
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}
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@ -18,7 +18,6 @@ use std::time::Instant;
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use actix::*;
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use actix_web::*;
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use actix::actors::signal::{ProcessSignals, Subscribe};
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mod codec;
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mod server;
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@ -213,10 +212,6 @@ fn main() {
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.bind("127.0.0.1:8080").unwrap()
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.start();
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// Subscribe to unix signals
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let signals = actix::Arbiter::system_registry().get::<ProcessSignals>();
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signals.send(Subscribe(addr.subscriber()));
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println!("Started http server: 127.0.0.1:8080");
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let _ = sys.run();
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}
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@ -10,7 +10,6 @@ extern crate env_logger;
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use actix::*;
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use actix_web::*;
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use actix::actors::signal::{ProcessSignals, Subscribe};
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/// do websocket handshake and start `MyWebSocket` actor
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fn ws_index(r: HttpRequest) -> Result<HttpResponse> {
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.bind("127.0.0.1:8080").unwrap()
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.start();
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// Subscribe to unix signals
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let signals = actix::Arbiter::system_registry().get::<ProcessSignals>();
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signals.send(Subscribe(_addr.subscriber()));
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println!("Started http server: 127.0.0.1:8080");
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let _ = sys.run();
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}
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@ -61,7 +61,7 @@ connections. Server accepts function that should return `HttpHandler` instance:
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|| Application::new()
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.resource("/", |r| r.f(index)))
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.bind("127.0.0.1:8088")?
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.start();
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.run();
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```
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That's it. Now, compile and run the program with cargo run.
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@ -69,9 +69,8 @@ Head over to ``http://localhost:8088/`` to see the results.
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Here is full source of main.rs file:
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```rust
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extern crate actix;
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extern crate actix_web;
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```rust,ignore
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# extern crate actix_web;
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use actix_web::*;
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fn index(req: HttpRequest) -> &'static str {
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@ -79,17 +78,11 @@ fn index(req: HttpRequest) -> &'static str {
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}
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fn main() {
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let sys = actix::System::new("example");
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HttpServer::new(
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|| Application::new()
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.resource("/", |r| r.f(index)))
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.bind("127.0.0.1:8088").expect("Can not bind to 127.0.0.1:8088")
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.start();
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println!("Started http server: 127.0.0.1:8088");
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# actix::Arbiter::system().send(actix::msgs::SystemExit(0));
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let _ = sys.run();
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.run();
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}
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```
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@ -47,15 +47,27 @@ address of the started http server. Actix http server accept several messages:
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# extern crate actix_web;
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# use futures::Future;
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use actix_web::*;
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use std::thread;
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use std::sync::mpsc;
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fn main() {
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let addr = HttpServer::new(
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|| Application::new()
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.resource("/", |r| r.h(httpcodes::HTTPOk)))
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.bind("127.0.0.1:0").expect("Can not bind to 127.0.0.1:0")
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.spawn();
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let (tx, rx) = mpsc::channel();
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thread::spawn(move || {
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let sys = actix::System::new("http-server");
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let addr = HttpServer::new(
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|| Application::new()
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.resource("/", |r| r.h(httpcodes::HTTPOk)))
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.bind("127.0.0.1:0").expect("Can not bind to 127.0.0.1:0")
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.shutdown_timeout(60) // <- Set shutdown timeout to 60 seconds
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.start();
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let _ = tx.send(addr);
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let _ = sys.run();
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});
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let _ = addr.call_fut(dev::StopServer{graceful: true}).wait(); // <- Send `StopServer` message to server.
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let addr = rx.recv().unwrap();
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let _ = addr.call_fut(
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dev::StopServer{graceful:true}).wait(); // <- Send `StopServer` message to server.
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}
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```
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@ -173,59 +185,13 @@ timeout are force dropped. By default shutdown timeout sets to 30 seconds.
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You can change this parameter with `HttpServer::shutdown_timeout()` method.
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You can send stop message to server with server address and specify if you what
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graceful shutdown or not. `start()` or `spawn()` methods return address of the server.
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graceful shutdown or not. `start()` methods return address of the server.
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```rust
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# extern crate futures;
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# extern crate actix;
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# extern crate actix_web;
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# use futures::Future;
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use actix_web::*;
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fn main() {
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let addr = HttpServer::new(
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|| Application::new()
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.resource("/", |r| r.h(httpcodes::HTTPOk)))
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.bind("127.0.0.1:0").expect("Can not bind to 127.0.0.1:0")
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.shutdown_timeout(60) // <- Set shutdown timeout to 60 seconds
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.spawn();
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let _ = addr.call_fut(
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dev::StopServer{graceful:true}).wait(); // <- Send `StopServer` message to server.
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}
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```
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It is possible to use signals. *CTRL-C* is available on all OSs, other signals are
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available on unix systems.
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Then you can subscribe your server to unix signals. Http server handles three signals:
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Http server handles several OS signals. *CTRL-C* is available on all OSs,
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other signals are available on unix systems.
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* *SIGINT* - Force shutdown workers
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* *SIGTERM* - Graceful shutdown workers
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* *SIGQUIT* - Force shutdown workers
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```rust,ignore
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# extern crate futures;
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# extern crate actix;
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# extern crate actix_web;
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use actix_web::*;
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use actix::actors::signal::{ProcessSignals, Subscribe};
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fn main() {
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let sys = actix::System::new("signals");
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let addr = HttpServer::new(|| {
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Application::new()
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.resource("/", |r| r.h(httpcodes::HTTPOk))})
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.bind("127.0.0.1:8080").unwrap()
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.start();
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// Subscribe to unix signals
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let signals = actix::Arbiter::system_registry().get::<ProcessSignals>();
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signals.send(Subscribe(addr.subscriber()));
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println!("Started http server: 127.0.0.1:8080");
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# actix::Arbiter::system().send(actix::msgs::SystemExit(0));
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let _ = sys.run();
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}
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```
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It is possible to disable signals handling with `HttpServer::disable_signals()` method.
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|
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@ -6,11 +6,11 @@ use std::marker::PhantomData;
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use std::collections::HashMap;
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use actix::prelude::*;
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use actix::actors::signal;
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use futures::{Future, Sink, Stream};
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use futures::sync::mpsc;
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use tokio_io::{AsyncRead, AsyncWrite};
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use tokio_core::net::TcpStream;
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use actix::actors::signal;
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use mio;
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use num_cpus;
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use net2::TcpBuilder;
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@ -105,6 +105,8 @@ pub struct HttpServer<T, A, H, U>
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accept: Vec<(mio::SetReadiness, sync_mpsc::Sender<Command>)>,
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exit: bool,
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shutdown_timeout: u16,
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signals: Option<SyncAddress<signal::ProcessSignals>>,
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no_signals: bool,
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}
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unsafe impl<T, A, H, U> Sync for HttpServer<T, A, H, U> where H: HttpHandler + 'static {}
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@ -150,6 +152,8 @@ impl<T, A, H, U, V> HttpServer<T, A, H, U>
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accept: Vec::new(),
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exit: false,
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shutdown_timeout: 30,
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signals: None,
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no_signals: false,
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}
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}
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@ -208,6 +212,18 @@ impl<T, A, H, U, V> HttpServer<T, A, H, U>
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self
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}
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/// Set alternative address for `ProcessSignals` actor.
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pub fn signals(mut self, addr: SyncAddress<signal::ProcessSignals>) -> Self {
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self.signals = Some(addr);
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self
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}
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/// Disable signal handling
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pub fn disable_signals(mut self) -> Self {
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self.no_signals = true;
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||||
self
|
||||
}
|
||||
|
||||
/// Timeout for graceful workers shutdown.
|
||||
///
|
||||
/// After receiving a stop signal, workers have this much time to finish serving requests.
|
||||
|
@ -276,6 +292,18 @@ impl<T, A, H, U, V> HttpServer<T, A, H, U>
|
|||
info!("Starting {} http workers", self.threads);
|
||||
workers
|
||||
}
|
||||
|
||||
// subscribe to os signals
|
||||
fn subscribe_to_signals(&self, addr: &SyncAddress<HttpServer<T, A, H, U>>) {
|
||||
if self.no_signals {
|
||||
let msg = signal::Subscribe(addr.subscriber());
|
||||
if let Some(ref signals) = self.signals {
|
||||
signals.send(msg);
|
||||
} else {
|
||||
Arbiter::system_registry().get::<signal::ProcessSignals>().send(msg);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<H: HttpHandler, U, V> HttpServer<TcpStream, net::SocketAddr, H, U>
|
||||
|
@ -327,18 +355,21 @@ impl<H: HttpHandler, U, V> HttpServer<TcpStream, net::SocketAddr, H, U>
|
|||
}
|
||||
|
||||
// start http server actor
|
||||
HttpServer::create(|_| {self})
|
||||
HttpServer::create(|ctx| {
|
||||
self.subscribe_to_signals(&ctx.address());
|
||||
self
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
/// Spawn new thread and start listening for incomming connections.
|
||||
///
|
||||
/// This method spawns new thread and starts new actix system. Other than that it is
|
||||
/// similar to `start()` method. This method does not block.
|
||||
/// similar to `start()` method. This method blocks.
|
||||
///
|
||||
/// This methods panics if no socket addresses get bound.
|
||||
///
|
||||
/// ```rust
|
||||
/// ```rust,ignore
|
||||
/// # extern crate futures;
|
||||
/// # extern crate actix;
|
||||
/// # extern crate actix_web;
|
||||
|
@ -346,27 +377,22 @@ impl<H: HttpHandler, U, V> HttpServer<TcpStream, net::SocketAddr, H, U>
|
|||
/// use actix_web::*;
|
||||
///
|
||||
/// fn main() {
|
||||
/// let addr = HttpServer::new(
|
||||
/// HttpServer::new(
|
||||
/// || Application::new()
|
||||
/// .resource("/", |r| r.h(httpcodes::HTTPOk)))
|
||||
/// .bind("127.0.0.1:0").expect("Can not bind to 127.0.0.1:0")
|
||||
/// .spawn();
|
||||
///
|
||||
/// let _ = addr.call_fut(
|
||||
/// dev::StopServer{graceful:true}).wait(); // <- Send `StopServer` message to server.
|
||||
/// .run();
|
||||
/// }
|
||||
/// ```
|
||||
pub fn spawn(mut self) -> SyncAddress<Self> {
|
||||
pub fn run(mut self) {
|
||||
self.exit = true;
|
||||
self.no_signals = false;
|
||||
|
||||
let (tx, rx) = sync_mpsc::channel();
|
||||
thread::spawn(move || {
|
||||
let _ = thread::spawn(move || {
|
||||
let sys = System::new("http-server");
|
||||
let addr = self.start();
|
||||
let _ = tx.send(addr);
|
||||
sys.run();
|
||||
});
|
||||
rx.recv().unwrap()
|
||||
self.start();
|
||||
let _ = sys.run();
|
||||
}).join();
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -401,7 +427,10 @@ impl<H: HttpHandler, U, V> HttpServer<TlsStream<TcpStream>, net::SocketAddr, H,
|
|||
}
|
||||
|
||||
// start http server actor
|
||||
Ok(HttpServer::create(|_| {self}))
|
||||
Ok(HttpServer::create(|ctx| {
|
||||
self.subscribe_to_signals(&ctx.address());
|
||||
self
|
||||
}))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
@ -441,7 +470,10 @@ impl<H: HttpHandler, U, V> HttpServer<SslStream<TcpStream>, net::SocketAddr, H,
|
|||
}
|
||||
|
||||
// start http server actor
|
||||
Ok(HttpServer::create(|_| {self}))
|
||||
Ok(HttpServer::create(|ctx| {
|
||||
self.subscribe_to_signals(&ctx.address());
|
||||
self
|
||||
}))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
@ -485,6 +517,7 @@ impl<T, A, H, U, V> HttpServer<WrapperStream<T>, A, H, U>
|
|||
HttpServer::create(move |ctx| {
|
||||
ctx.add_stream(stream.map(
|
||||
move |(t, _)| Conn{io: WrapperStream::new(t), peer: None, http2: false}));
|
||||
self.subscribe_to_signals(&ctx.address());
|
||||
self
|
||||
})
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue