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Merge pull request #836 from jamwt/fix_sleep

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Fix sleep duration calculations.
This commit is contained in:
Alex Lyon 2016-03-22 18:00:18 -07:00
commit 94b8f9fe37
1 changed files with 8 additions and 7 deletions
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15
src/sleep/sleep.rs
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@ -18,7 +18,6 @@ extern crate uucore;
use std::io::Write; use std::io::Write;
use std::thread::{self}; use std::thread::{self};
use std::time::Duration; use std::time::Duration;
use std::u32::MAX as U32_MAX;
static NAME: &'static str = "sleep"; static NAME: &'static str = "sleep";
static VERSION: &'static str = env!("CARGO_PKG_VERSION"); static VERSION: &'static str = env!("CARGO_PKG_VERSION");
@ -62,17 +61,19 @@ specified by the sum of their values.", NAME, VERSION);
0 0
} }
fn float_to_duration(dur_f: f64) -> Duration {
let seconds = dur_f as u64;
let nanos = ((dur_f - seconds as f64) * 1e9) as u32;
Duration::new(seconds, nanos)
}
fn sleep(args: Vec<String>) { fn sleep(args: Vec<String>) {
let sleep_time = args.iter().fold(0.0, |result, arg| let sleep_time = args.iter().fold(0.0, |result, arg|
match uucore::parse_time::from_str(&arg[..]) { match uucore::parse_time::from_str(&arg[..]) {
Ok(m) => m + result, Ok(m) => m + result,
Err(f) => crash!(1, "{}", f), Err(f) => crash!(1, "{}", f),
}); });
let sleep_dur = float_to_duration(sleep_time);
let sleep_dur = if sleep_time > (U32_MAX as f64) { thread::sleep(sleep_dur);
U32_MAX
} else {
(1000000.0 * sleep_time) as u32
};
thread::sleep(Duration::new(0, sleep_dur));
} }