similar/
deadline_support.rs

1use std::time::Duration;
2
3#[cfg(not(feature = "wasm32_web_time"))]
4pub use std::time::Instant;
5
6/// WASM (browser) specific instant type.
7///
8/// This type is only available when the `wasm32_web_time` feature is enabled.  In that
9/// case this is an alias for [`web_time::Instant`].
10#[cfg(feature = "wasm32_web_time")]
11pub use web_time::Instant;
12
13/// Checks if a deadline was exeeded.
14pub fn deadline_exceeded(deadline: Option<Instant>) -> bool {
15    #[allow(unreachable_code)]
16    match deadline {
17        Some(deadline) => {
18            #[cfg(all(target_arch = "wasm32", not(feature = "wasm32_web_time")))]
19            {
20                return false;
21            }
22            Instant::now() > deadline
23        }
24        None => false,
25    }
26}
27
28/// Converst a duration into a deadline.  This can be a noop on wasm
29#[allow(unused)]
30pub fn duration_to_deadline(add: Duration) -> Option<Instant> {
31    #[allow(unreachable_code)]
32    #[cfg(all(target_arch = "wasm32", not(feature = "wasm32_web_time")))]
33    {
34        return None;
35    }
36    Instant::now().checked_add(add)
37}