use std::sync;
use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
use std::sync::Arc;
use std::thread;
use std::time::{Duration, Instant};
use actix::prelude::*;
use futures::future;
use tokio_timer::Delay;
#[derive(Debug)]
struct Num(usize);
impl Message for Num {
type Result = ();
}
struct MyActor(Arc<AtomicUsize>, Arc<AtomicBool>, Running);
impl Actor for MyActor {
type Context = actix::Context<Self>;
fn stopping(&mut self, _: &mut Self::Context) -> Running {
System::current().stop();
Running::Stop
}
}
impl StreamHandler<Num, ()> for MyActor {
fn handle(&mut self, msg: Num, _: &mut Context<MyActor>) {
self.0.fetch_add(msg.0, Ordering::Relaxed);
}
fn error(&mut self, _: (), _: &mut Context<MyActor>) -> Running {
self.0.fetch_add(1, Ordering::Relaxed);
self.2
}
fn finished(&mut self, _: &mut Context<MyActor>) {
self.1.store(true, Ordering::Relaxed);
}
}
#[test]
fn test_stream() {
let count = Arc::new(AtomicUsize::new(0));
let err = Arc::new(AtomicBool::new(false));
let items = vec![Num(1), Num(1), Num(1), Num(1), Num(1), Num(1), Num(1)];
let act_count = Arc::clone(&count);
let act_err = Arc::clone(&err);
System::run(move || {
MyActor::create(move |ctx| {
MyActor::add_stream(futures::stream::iter_ok::<_, ()>(items), ctx);
MyActor(act_count, act_err, Running::Stop)
});
})
.unwrap();
assert_eq!(count.load(Ordering::Relaxed), 7);
assert!(err.load(Ordering::Relaxed));
}
#[test]
fn test_stream_with_error() {
let count = Arc::new(AtomicUsize::new(0));
let error = Arc::new(AtomicBool::new(false));
let items = vec![
Ok(Num(1)),
Ok(Num(1)),
Err(()),
Ok(Num(1)),
Ok(Num(1)),
Ok(Num(1)),
Ok(Num(1)),
Ok(Num(1)),
];
let act_count = Arc::clone(&count);
let act_error = Arc::clone(&error);
System::run(move || {
MyActor::create(move |ctx| {
MyActor::add_stream(futures::stream::iter_result(items), ctx);
MyActor(act_count, act_error, Running::Stop)
});
})
.unwrap();
assert_eq!(count.load(Ordering::Relaxed), 3);
assert!(error.load(Ordering::Relaxed));
}
#[test]
fn test_stream_with_error_no_stop() {
let count = Arc::new(AtomicUsize::new(0));
let error = Arc::new(AtomicBool::new(false));
let items = vec![
Ok(Num(1)),
Ok(Num(1)),
Err(()),
Ok(Num(1)),
Ok(Num(1)),
Ok(Num(1)),
Ok(Num(1)),
Ok(Num(1)),
];
let act_count = Arc::clone(&count);
let act_error = Arc::clone(&error);
System::run(move || {
MyActor::create(move |ctx| {
MyActor::add_stream(futures::stream::iter_result(items), ctx);
MyActor(act_count, act_error, Running::Continue)
});
})
.unwrap();
assert_eq!(count.load(Ordering::Relaxed), 8);
assert!(error.load(Ordering::Relaxed));
}
struct MySyncActor {
started: Arc<AtomicUsize>,
stopping: Arc<AtomicUsize>,
stopped: Arc<AtomicUsize>,
msgs: Arc<AtomicUsize>,
stop: bool,
}
impl Actor for MySyncActor {
type Context = actix::SyncContext<Self>;
fn started(&mut self, _: &mut Self::Context) {
self.started.fetch_add(1, Ordering::Relaxed);
}
fn stopping(&mut self, _: &mut Self::Context) -> Running {
self.stopping.fetch_add(1, Ordering::Relaxed);
Running::Continue
}
fn stopped(&mut self, _: &mut Self::Context) {
self.stopped.fetch_add(1, Ordering::Relaxed);
}
}
impl actix::Handler<Num> for MySyncActor {
type Result = ();
fn handle(&mut self, msg: Num, ctx: &mut Self::Context) {
self.msgs.fetch_add(msg.0, Ordering::Relaxed);
if self.stop {
ctx.stop();
}
}
}
#[test]
fn test_restart_sync_actor() {
let started = Arc::new(AtomicUsize::new(0));
let stopping = Arc::new(AtomicUsize::new(0));
let stopped = Arc::new(AtomicUsize::new(0));
let msgs = Arc::new(AtomicUsize::new(0));
let started1 = Arc::clone(&started);
let stopping1 = Arc::clone(&stopping);
let stopped1 = Arc::clone(&stopped);
let msgs1 = Arc::clone(&msgs);
System::run(move || {
let addr = SyncArbiter::start(1, move || MySyncActor {
started: Arc::clone(&started1),
stopping: Arc::clone(&stopping1),
stopped: Arc::clone(&stopped1),
msgs: Arc::clone(&msgs1),
stop: started1.load(Ordering::Relaxed) == 0,
});
addr.do_send(Num(2));
actix_rt::spawn(addr.send(Num(4)).then(move |_| {
Delay::new(Instant::now() + Duration::new(0, 1_000_000)).then(move |_| {
System::current().stop();
future::result(Ok(()))
})
}));
})
.unwrap();
assert_eq!(started.load(Ordering::Relaxed), 2);
assert_eq!(stopping.load(Ordering::Relaxed), 2);
assert_eq!(stopped.load(Ordering::Relaxed), 2);
assert_eq!(msgs.load(Ordering::Relaxed), 6);
}
struct IntervalActor {
elapses_left: usize,
sender: sync::mpsc::Sender<Instant>,
instant: Option<Instant>,
}
impl IntervalActor {
pub fn new(elapses_left: usize, sender: sync::mpsc::Sender<Instant>) -> Self {
Self {
elapses_left: elapses_left + 1,
sender,
instant: None,
}
}
}
impl Actor for IntervalActor {
type Context = actix::Context<Self>;
fn started(&mut self, ctx: &mut Self::Context) {
self.instant = Some(Instant::now());
ctx.run_interval(Duration::from_millis(110), move |act, ctx| {
act.elapses_left -= 1;
if act.elapses_left == 0 {
act.sender
.send(act.instant.take().expect("To have Instant"))
.expect("To send result");
ctx.stop();
System::current().stop();
}
});
}
}
#[test]
fn test_run_interval() {
const MAX_WAIT: Duration = Duration::from_millis(10_000);
let (sender, receiver) = sync::mpsc::channel();
thread::spawn(move || {
System::run(move || {
let _addr = IntervalActor::new(10, sender).start();
})
.unwrap();
});
let result = receiver
.recv_timeout(MAX_WAIT)
.expect("To receive response in time");
assert_eq!(result.elapsed().as_secs(), 1);
}