rtic/examples/t-resource.rs
2021-02-20 19:22:45 +01:00

81 lines
2 KiB
Rust

//! [compile-pass] Check code generation of resources
#![deny(unsafe_code)]
#![deny(warnings)]
#![no_main]
#![no_std]
use panic_halt as _;
#[rtic::app(device = lm3s6965)]
mod app {
#[resources]
struct Resources {
#[init(0)]
o1: u32, // init
#[init(0)]
o2: u32, // idle
#[init(0)]
o3: u32, // EXTI0
#[init(0)]
o4: u32, // idle
#[init(0)]
o5: u32, // EXTI1
#[init(0)]
o6: u32, // init
#[init(0)]
s1: u32, // idle & uart0
#[init(0)]
s2: u32, // uart0 & uart1
#[init(0)]
s3: u32, // idle & uart0
}
#[init]
fn init(_: init::Context) -> (init::LateResources, init::Monotonics) {
(init::LateResources {}, init::Monotonics())
}
#[idle(resources = [o2, &o4, s1, &s3])]
fn idle(mut c: idle::Context) -> ! {
// owned by `idle` == `&'static mut`
let _: resources::o2 = c.resources.o2;
// owned by `idle` == `&'static` if read-only
let _: &u32 = c.resources.o4;
// shared with `idle` == `Mutex`
c.resources.s1.lock(|_| {});
// `&` if read-only
let _: &u32 = c.resources.s3;
loop {
cortex_m::asm::nop();
}
}
#[task(binds = UART0, resources = [o3, s1, s2, &s3])]
fn uart0(c: uart0::Context) {
// owned by interrupt == `&mut`
let _: resources::o3 = c.resources.o3;
// no `Mutex` proxy when access from highest priority task
let _: resources::s1 = c.resources.s1;
// no `Mutex` proxy when co-owned by cooperative (same priority) tasks
let _: resources::s2 = c.resources.s2;
// `&` if read-only
let _: &u32 = c.resources.s3;
}
#[task(binds = UART1, resources = [s2, &o5])]
fn uart1(c: uart1::Context) {
// owned by interrupt == `&` if read-only
let _: &u32 = c.resources.o5;
// no `Mutex` proxy when co-owned by cooperative (same priority) tasks
let _: resources::s2 = c.resources.s2;
}
}