async_sleep/
impl_async_io.rs

1use alloc::boxed::Box;
2use core::time::Duration;
3
4pub use async_io::{Timer, Timer as AsyncIoTimer};
5use futures_util::FutureExt as _;
6
7use crate::{Sleepble, SleepbleWaitBoxFuture};
8
9//
10impl Sleepble for Timer {
11    fn sleep(dur: Duration) -> Self {
12        Self::after(dur)
13    }
14
15    fn wait(self) -> SleepbleWaitBoxFuture {
16        Box::pin(self.map(|_| ()))
17    }
18}
19
20#[cfg(test)]
21mod tests {
22    #[allow(unused_imports)]
23    use super::*;
24
25    #[cfg(feature = "std")]
26    #[tokio::test]
27    async fn test_sleep() {
28        #[cfg(feature = "std")]
29        let now = std::time::Instant::now();
30
31        crate::sleep::sleep::<Timer>(Duration::from_millis(100)).await;
32
33        #[cfg(feature = "std")]
34        {
35            let elapsed_dur = now.elapsed();
36            assert!(elapsed_dur.as_millis() >= 100 && elapsed_dur.as_millis() <= 105);
37        }
38    }
39
40    #[cfg(feature = "rw")]
41    #[cfg(test)]
42    mod rw_tests {
43        use core::time::Duration;
44        use std::{
45            io::ErrorKind as IoErrorKind,
46            net::{TcpListener, TcpStream},
47            time::Instant,
48        };
49
50        use async_io::Async;
51        use futures_lite::future::block_on;
52
53        use crate::{
54            impl_async_io::Timer,
55            rw::{AsyncReadWithTimeoutExt as _, AsyncWriteWithTimeoutExt as _},
56        };
57
58        #[test]
59        fn simple() -> Result<(), Box<dyn std::error::Error>> {
60            block_on(async {
61                let listener = TcpListener::bind("127.0.0.1:0")?;
62
63                let addr = listener.local_addr()?;
64
65                let tcp_stream_c = TcpStream::connect(addr)?;
66                let tcp_stream_s = listener
67                    .incoming()
68                    .next()
69                    .expect("Get next incoming failed")?;
70
71                let mut tcp_stream_c = Async::<TcpStream>::new(tcp_stream_c)?;
72                let mut tcp_stream_s = Async::<TcpStream>::new(tcp_stream_s)?;
73
74                tcp_stream_s
75                    .write_with_timeout::<Timer>(b"foo", Duration::from_secs(1))
76                    .await?;
77
78                let mut buf = vec![0u8; 5];
79                let n = tcp_stream_c
80                    .read_with_timeout::<Timer>(&mut buf, Duration::from_secs(1))
81                    .await?;
82                assert_eq!(n, 3);
83                assert_eq!(buf, b"foo\0\0");
84
85                let instant = Instant::now();
86                let two_secs = Duration::from_secs(2);
87                let three_secs = Duration::from_secs(3);
88                let err = tcp_stream_c
89                    .read_with_timeout::<Timer>(&mut buf, Duration::from_secs(2))
90                    .await
91                    .err()
92                    .unwrap();
93                assert!(instant.elapsed() >= two_secs);
94                assert!(instant.elapsed() < three_secs);
95                assert_eq!(err.kind(), IoErrorKind::TimedOut);
96                assert_eq!(err.to_string(), "read timeout");
97
98                Ok(())
99            })
100        }
101    }
102}
async_sleep/impl_async_io.rs

async_sleep/
impl_async_io.rs
