//! Test notifying a task from another task. The waiting task starts its wait
//! before the notifying task notifies.

#![no_std]
#![no_main]

extern crate alloc;
use hopter::{
    debug::semihosting::{self, dbg_println},
    sync::Mailbox,
    task,
    task::main,
    time,
};

static MAILBOX: Mailbox = Mailbox::new();

#[main]
fn main(_: cortex_m::Peripherals) {
    task::build().set_entry(notifier).spawn().unwrap();
    task::build().set_entry(listener).spawn().unwrap();
}

fn notifier() {
    for _ in 0..5 {
        time::sleep_ms(250);
        MAILBOX.notify_allow_isr();
    }
}

fn listener() {
    for _ in 0..5 {
        MAILBOX.wait();
        dbg_println!("received");
    }

    #[cfg(feature = "qemu")]
    semihosting::terminate(true);
    #[cfg(not(feature = "qemu"))]
    {
        dbg_println!("test complete!");
        loop {}
    }
}