timers

gistfile1.txt

#[cfg(test)]
mod tests {
    use super::*;
    use windows::Win32::Media::timeGetTime;
    use windows::Win32::Media::timeGetDevCaps;
    use windows::Win32::Media::timeBeginPeriod;
    use windows::Win32::Media::TIMECAPS;
    use windows::Win32::Media::TIMERR_NOERROR;
    use std::mem;
    #[tokio::test]
    async fn test() {
        let mut x: u32 = 0;
        let mut time_caps = TIMECAPS {
            wPeriodMin: 0,
            wPeriodMax: 0,
        };
        let time_caps_size = mem::size_of::<TIMECAPS>() as u32;
        unsafe {
            timeGetDevCaps(&mut time_caps as *mut TIMECAPS, time_caps_size);
            timeBeginPeriod(time_caps.wPeriodMin);
        }
        let mut interval = tokio::time::interval(std::time::Duration::from_millis(20));
        let mut timestamp = std::time::Instant::now();
        loop {
            interval.tick().await;
            let elapsed = timestamp.elapsed().as_millis();
            println!("{}", elapsed);
            timestamp = std::time::Instant::now();
        }
        unsafe {
            timeEndPeriod(time_caps.wPeriodMin);
        }
    }
}