1use smol::future::FutureExt;
 2use std::{future::Future, time::Duration};
 3pub use util::*;
 4
 5pub async fn timeout<F, T>(timeout: Duration, f: F) -> Result<T, ()>
 6where
 7    F: Future<Output = T>,
 8{
 9    let timer = async {
10        smol::Timer::after(timeout).await;
11        Err(())
12    };
13    let future = async move { Ok(f.await) };
14    timer.race(future).await
15}
16
17#[cfg(any(test, feature = "test"))]
18pub struct CwdBacktrace<'a>(pub &'a backtrace::Backtrace);
19
20#[cfg(any(test, feature = "test"))]
21impl<'a> std::fmt::Debug for CwdBacktrace<'a> {
22    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
23        use backtrace::{BacktraceFmt, BytesOrWideString};
24
25        let cwd = std::env::current_dir().unwrap();
26        let cwd = cwd.parent().unwrap();
27        let mut print_path = |fmt: &mut std::fmt::Formatter<'_>, path: BytesOrWideString<'_>| {
28            std::fmt::Display::fmt(&path, fmt)
29        };
30        let mut fmt = BacktraceFmt::new(f, backtrace::PrintFmt::Full, &mut print_path);
31        for frame in self.0.frames() {
32            let mut formatted_frame = fmt.frame();
33            if frame
34                .symbols()
35                .iter()
36                .any(|s| s.filename().map_or(false, |f| f.starts_with(&cwd)))
37            {
38                formatted_frame.backtrace_frame(frame)?;
39            }
40        }
41        fmt.finish()
42    }
43}