signal_drop_rt.rs - mozsearch

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#![warn(rust_2018_idioms)]

#![cfg(feature = "full")]

#![cfg(unix)]

mod support {

    pub mod signal;

use support::signal::send_signal;

use tokio::runtime::Runtime;

use tokio::signal::unix::{signal, SignalKind};

#[test]

fn dropping_loops_does_not_cause_starvation() {

    let kind = SignalKind::user_defined1();

    let first_rt = rt();

    let mut first_signal =

        first_rt.block_on(async { signal(kind).expect("failed to register first signal") });

    let second_rt = rt();

    let mut second_signal =

        second_rt.block_on(async { signal(kind).expect("failed to register second signal") });

    send_signal(libc::SIGUSR1);

    first_rt

        .block_on(first_signal.recv())

        .expect("failed to await first signal");

    drop(first_rt);

    drop(first_signal);

    send_signal(libc::SIGUSR1);

    second_rt.block_on(second_signal.recv());

fn rt() -> Runtime {

    tokio::runtime::Builder::new_current_thread()

        .enable_all()

        .build()

        .unwrap()