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actix-sockets's Issues

lifetime issue on started method for Ws

Thanks for this neat tutorial ! It helped me to write a websocket service for my project.

I am running into the following issue in the started method for the WS actor :

impl Actor for WsConn {
    type Context = ws::WebsocketContext<Self>;

    fn started(&mut self, ctx: &mut Self::Context) {
        self.hb(ctx);

        let addr = ctx.address();
        self.lobby_addr
            .send(Connect {
                addr: addr.recipient(),
                lobby_id: self.room,
                self_id: self.id,
            })
            .into_actor(self)
            .then(|res, _, ctx| {
                match res {
                    Ok(_res) => (),
                    _ => ctx.stop(),
                }
                fut::ready(())
            })
            .wait(ctx);
    }

It won't build because self is captured into the then closure so there is a lifetime issue.
Note that i am using different versions :

actix = { version = "0.12.0"}
actix-web-actors = "=4.0.0-beta.6"

any idea what i am doing wrong ? I've been banging my head the whole day against this

no method named `then` found for struct `actix::fut::future::FutureWrap` in the current scope

no method named then found for struct actix::fut::future::FutureWrap in the current scope

method not found in actix::fut::future::FutureWrap<actix::address::message::MsgRequest<actix::dev::channel::AddressSender<lobby::Lobby>, messages::Connect>, ws::WsConn>

help: items from traits can only be used if the trait is in scoperustc(E0599)
ws.rs(46, 14): method not found in actix::fut::future::FutureWrap<actix::address::message::MsgRequest<actix::dev::channel::AddressSender<lobby::Lobby>, messages::Connect>, ws::WsConn>
mod.rs(142, 8): the method is available for actix::fut::future::FutureWrap<actix::address::message::MsgRequest<actix::dev::channel::AddressSender<lobby::Lobby>, messages::Connect>, ws::WsConn> here

`
fn started(&mut self, ctx: &mut Self::Context) {
self.hb(ctx);
let addr = ctx.address();

    self.lobby_addr
        .send(Connect {
            addr: addr.recipient(),
            lobby_id: self.room,
            self_id: self.id,
        })
        .into_actor(self)
        .then(|res, _, ctx| {
            match res {
                Ok(_res) => (),
                _ => ctx.stop(),
            }
            fut::ready(())
        })
        .wait(ctx);
}

`

Duplicate call of self.lobby_addr.do_send(Disconnect { id: self.id, room_id: self.room });

Hey, I think there is a bug in this section of the code:

fn hb(&self, ctx: &mut ws::WebsocketContext<Self>) {
        ctx.run_interval(HEARTBEAT_INTERVAL, |act, ctx| {
            if Instant::now().duration_since(act.hb) > CLIENT_TIMEOUT {
                println!("Disconnecting failed heartbeat");
                act.lobby_addr.do_send(Disconnect { id: act.id, room_id: act.room });
                ctx.stop();
                return;
            }

            ctx.ping(b"PING");
        });
    }

It is unnecessary to call act.lobby_addr.do_send(Disconnect { id: act.id, room_id: act.room }); here, because the ctx.stop(); will cause the actor to enter the stopping state. In that case the body of the stopping() function is run, which already sends a Disconnect message:

fn stopping(&mut self, _: &mut Self::Context) -> Running {
        self.lobby_addr.do_send(Disconnect { id: self.id, room_id: self.room });
        Running::Stop
    }

If you give me permissions to make a PR I'll fix it quickly

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