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use runtime::{Inner, Runtime};
use reactor::Reactor;
use std::io;
use tokio_reactor;
use tokio_threadpool::Builder as ThreadPoolBuilder;
use tokio_threadpool::park::DefaultPark;
use tokio_timer::timer::{self, Timer};
#[derive(Debug)]
pub struct Builder {
threadpool_builder: ThreadPoolBuilder,
}
impl Builder {
pub fn new() -> Builder {
let mut threadpool_builder = ThreadPoolBuilder::new();
threadpool_builder.name_prefix("tokio-runtime-worker-");
Builder { threadpool_builder }
}
pub fn threadpool_builder(&mut self, val: ThreadPoolBuilder) -> &mut Self {
self.threadpool_builder = val;
self
}
pub fn build(&mut self) -> io::Result<Runtime> {
use std::collections::HashMap;
use std::sync::{Arc, Mutex};
let timers = Arc::new(Mutex::new(HashMap::<_, timer::Handle>::new()));
let t1 = timers.clone();
let reactor = Reactor::new()?.background()?;
let reactor_handle = reactor.handle().clone();
let pool = self.threadpool_builder
.around_worker(move |w, enter| {
let timer_handle = t1.lock().unwrap()
.get(w.id()).unwrap()
.clone();
tokio_reactor::with_default(&reactor_handle, enter, |enter| {
timer::with_default(&timer_handle, enter, |_| {
w.run();
});
});
})
.custom_park(move |worker_id| {
let timer = Timer::new(DefaultPark::new());
timers.lock().unwrap()
.insert(worker_id.clone(), timer.handle());
timer
})
.build();
Ok(Runtime {
inner: Some(Inner {
reactor,
pool,
}),
})
}
}