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comparison rust/src/paramwaiter.rs @ 593:bf138339d20a rust

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fiddling with timeouts and closures
author Matt Johnston <matt@ucc.asn.au>
date Tue, 27 Dec 2016 00:51:28 +0800
parents rust/src/configwaiter.rs@03b48ec0bb03
children aff50ee77252
comparison
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592:03b48ec0bb03 593:bf138339d20a
1 extern crate tokio_core;
2 extern crate futures;
3 extern crate rand;
4
5 use std::time::Duration;
6 use std::io;
7
8 use tokio_core::reactor::Interval;
9 use tokio_core::reactor::Handle;
10 use futures::Stream;
11 use types::*;
12
13 pub struct ParamWaiter {
14 }
15
16 impl ParamWaiter {
17 fn step(&mut self) -> Params {
18 let mut p = Params::defaults();
19 let mut rng = rand::thread_rng();
20 p.fridge_setpoint = 17.0 + 4.0*rand::random::<f32>();
21 p
22 }
23
24 pub fn new() -> Self {
25 ParamWaiter {}
26 }
27
28 pub fn run(handle: &Handle, rate: u64) -> Box<Stream<Item=Params, Error=io::Error>> {
29 let mut s = ParamWaiter::new();
30
31 let dur = Duration::from_millis(rate);
32 Interval::new(dur, handle).unwrap().map(move |()| {
33 s.step()
34 }).boxed()
35 }
36 }
37