rune/
timefns.rs

1//! Time analysis
2use crate::core::{
3    env::{Env, sym},
4    gc::{Context, Rt},
5    object::Object,
6};
7use rune_core::macros::list;
8use rune_macros::defun;
9use std::time::SystemTime;
10
11defvar!(CURRENT_TIME_LIST, true);
12
13#[defun]
14fn current_time<'ob>(cx: &'ob Context, env: &Rt<Env>) -> Object<'ob> {
15    assert!(
16        env.vars.get(sym::CURRENT_TIME_LIST).unwrap() == &sym::TRUE,
17        "current-time-list is nil"
18    );
19    let duration = SystemTime::now()
20        .duration_since(SystemTime::UNIX_EPOCH)
21        .expect("System time is before the epoch");
22
23    let secs = duration.as_secs();
24    let micros = duration.subsec_micros();
25    let low = secs & 0xffff;
26    let high = secs >> 16;
27
28    list![high, low, micros, 0; cx]
29}