nushell/crates/nu-utils/src/ctrl_c.rs

use std::sync::{
    atomic::{AtomicBool, Ordering},
    Arc,
};

/// Returns true if Nu has received a SIGINT signal / ctrl+c event
pub fn was_pressed(ctrlc: &Option<Arc<AtomicBool>>) -> bool {
    if let Some(ctrlc) = ctrlc {
        ctrlc.load(Ordering::SeqCst)
    } else {
        false
    }
}
Add helper method to check whether ctrl+c was pressed, adopt it (#7482) I've been working on streaming and pipeline interruption lately. It was bothering me that checking ctrl+c (something we want to do often) always requires a bunch of boilerplate like: ```rust use std::sync::atomic::Ordering; if let Some(ctrlc) = &engine_state.ctrlc { if ctrlc.load(Ordering::SeqCst) { ... ``` I added a helper method to cut that down to: ```rust if nu_utils::ctrl_c::was_pressed(&engine_state.ctrlc) { ... ``` 2022-12-15 17:39:24 +00:00			`use std::sync::{`
			`atomic::{AtomicBool, Ordering},`
			`Arc,`
			`};`

			`/// Returns true if Nu has received a SIGINT signal / ctrl+c event`
			`pub fn was_pressed(ctrlc: &Option<Arc<AtomicBool>>) -> bool {`
			`if let Some(ctrlc) = ctrlc {`
			`ctrlc.load(Ordering::SeqCst)`
			`} else {`
			`false`
			`}`
			`}`