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mirror of https://github.com/fafhrd91/actix-net synced 2025-03-20 16:05:18 +01:00

add System time service

This commit is contained in:
Nikolay Kim 2019-01-26 13:14:37 -08:00
parent c1c989034d
commit ff6ac0a67f

View File

@ -1,6 +1,5 @@
use std::time::{Duration, Instant}; use std::time::{self, Duration, Instant};
use actix_rt::spawn;
use actix_service::{NewService, Service}; use actix_service::{NewService, Service};
use futures::future::{ok, FutureResult}; use futures::future::{ok, FutureResult};
use futures::{Async, Future, Poll}; use futures::{Async, Future, Poll};
@ -66,22 +65,24 @@ impl LowResTimeService {
/// Get current time. This function has to be called from /// Get current time. This function has to be called from
/// future's poll method, otherwise it panics. /// future's poll method, otherwise it panics.
pub fn now(&self) -> Instant { pub fn now(&self) -> Instant {
let cur = self.0.borrow().current; let cur = self.0.get_ref().current;
if let Some(cur) = cur { if let Some(cur) = cur {
cur cur
} else { } else {
let now = Instant::now(); let now = Instant::now();
let inner = self.0.clone(); let mut inner = self.0.clone();
let interval = { let interval = {
let mut b = inner.borrow_mut(); let mut b = inner.get_mut();
b.current = Some(now); b.current = Some(now);
b.resolution b.resolution
}; };
spawn(sleep(interval).map_err(|_| panic!()).and_then(move |_| { tokio_current_thread::spawn(sleep(interval).map_err(|_| panic!()).and_then(
inner.borrow_mut().current.take(); move |_| {
Ok(()) inner.get_mut().current.take();
})); Ok(())
},
));
now now
} }
} }
@ -100,3 +101,55 @@ impl Service<()> for LowResTimeService {
ok(self.now()) ok(self.now())
} }
} }
#[derive(Clone, Debug)]
pub struct SystemTime(Cell<SystemTimeInner>);
#[derive(Debug)]
struct SystemTimeInner {
resolution: Duration,
current: Option<time::SystemTime>,
}
impl SystemTimeInner {
fn new(resolution: Duration) -> Self {
SystemTimeInner {
resolution,
current: None,
}
}
}
#[derive(Clone, Debug)]
pub struct SystemTimeService(Cell<SystemTimeInner>);
impl SystemTimeService {
pub fn with(resolution: Duration) -> SystemTimeService {
SystemTimeService(Cell::new(SystemTimeInner::new(resolution)))
}
/// Get current time. This function has to be called from
/// future's poll method, otherwise it panics.
pub fn now(&self) -> time::SystemTime {
let cur = self.0.get_ref().current.clone();
if let Some(cur) = cur {
cur
} else {
let now = time::SystemTime::now();
let mut inner = self.0.clone();
let interval = {
let mut b = inner.get_mut();
b.current = Some(now);
b.resolution
};
tokio_current_thread::spawn(sleep(interval).map_err(|_| panic!()).and_then(
move |_| {
inner.get_mut().current.take();
Ok(())
},
));
now
}
}
}