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//! examples/cfg-whole-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;
#[cfg(debug_assertions)]
use cortex_m_semihosting::hprintln;
#[shared]
struct Shared {
count: u32,
#[cfg(never)]
unused: u32,
}
#[local]
struct Local {}
#[init]
fn init(_: init::Context) -> (Shared, Local, init::Monotonics) {
foo::spawn().unwrap();
foo::spawn().unwrap();
(
Shared {
count: 0,
#[cfg(never)]
unused: 1,
},
Local {},
init::Monotonics(),
)
}
#[idle]
fn idle(_: idle::Context) -> ! {
debug::exit(debug::EXIT_SUCCESS); // Exit QEMU simulator
loop {
cortex_m::asm::nop();
}
}
#[task(capacity = 2, shared = [count])]
fn foo(mut _cx: foo::Context) {
#[cfg(debug_assertions)]
{
_cx.shared.count.lock(|count| *count += 1);
log::spawn(_cx.shared.count.lock(|count| *count)).unwrap();
}
// this wouldn't compile in `release` mode
// *_cx.shared.count += 1;
// ..
}
// The whole task should disappear,
// currently still present in the Tasks enum
#[cfg(never)]
#[task(capacity = 2, shared = [count])]
fn foo2(mut _cx: foo2::Context) {
#[cfg(debug_assertions)]
{
_cx.shared.count.lock(|count| *count += 10);
log::spawn(_cx.shared.count.lock(|count| *count)).unwrap();
}
// this wouldn't compile in `release` mode
// *_cx.shared.count += 1;
// ..
}
#[cfg(debug_assertions)]
#[task(capacity = 2)]
fn log(_: log::Context, n: u32) {
hprintln!(
"foo has been called {} time{}",
n,
if n == 1 { "" } else { "s" }
)
.ok();
}
}
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