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//! examples/task.rs
#![deny(unsafe_code)]
#![deny(warnings)]
#![no_main]
#![no_std]
use panic_semihosting as _;
#[rtic::app(device = lm3s6965, dispatchers = [SSI0, QEI0])]
mod app {
use cortex_m_semihosting::{debug, hprintln};
#[shared]
struct Shared {}
#[local]
struct Local {}
#[init]
fn init(_: init::Context) -> (Shared, Local, init::Monotonics) {
foo::spawn().unwrap();
(Shared {}, Local {}, init::Monotonics())
}
#[task]
fn foo(_: foo::Context) {
hprintln!("foo - start");
// spawns `bar` onto the task scheduler
// `foo` and `bar` have the same priority so `bar` will not run until
// after `foo` terminates
bar::spawn().unwrap();
hprintln!("foo - middle");
// spawns `baz` onto the task scheduler
// `baz` has higher priority than `foo` so it immediately preempts `foo`
baz::spawn().unwrap();
hprintln!("foo - end");
}
#[task]
fn bar(_: bar::Context) {
hprintln!("bar");
debug::exit(debug::EXIT_SUCCESS); // Exit QEMU simulator
}
#[task(priority = 2)]
fn baz(_: baz::Context) {
hprintln!("baz");
}
}
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