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//! examples/task-local.rs
#![deny(unsafe_code)]
#![deny(warnings)]
#![no_main]
#![no_std]
use panic_semihosting as _;
#[rtic::app(device = lm3s6965)]
mod app {
use cortex_m_semihosting::{debug, hprintln};
use lm3s6965::Interrupt;
#[resources]
struct Resources {
// An early resource
#[init(0)]
shared: u32,
// A local (move), early resource
#[task_local]
#[init(1)]
l1: u32,
// An exclusive, early resource
#[lock_free]
#[init(1)]
e1: u32,
// A local (move), late resource
#[task_local]
l2: u32,
// An exclusive, late resource
#[lock_free]
e2: u32,
}
#[init]
fn init(_: init::Context) -> init::LateResources {
rtic::pend(Interrupt::UART0);
rtic::pend(Interrupt::UART1);
init::LateResources { e2: 2, l2: 2 }
}
// `shared` cannot be accessed from this context
// l1 ok (task_local)
// e2 ok (lock_free)
#[idle(resources =[l1, e2])]
fn idle(cx: idle::Context) -> ! {
hprintln!("IDLE:l1 = {}", cx.resources.l1).unwrap();
hprintln!("IDLE:e2 = {}", cx.resources.e2).unwrap();
debug::exit(debug::EXIT_SUCCESS);
loop {
cortex_m::asm::nop();
}
}
// `shared` can be accessed from this context
// l2 ok (task_local)
// e1 ok (lock_free)
#[task(priority = 1, binds = UART0, resources = [shared, l2, e1])]
fn uart0(mut cx: uart0::Context) {
let shared = cx.resources.shared.lock(|shared| {
*shared += 1;
*shared
});
*cx.resources.e1 += 10;
hprintln!("UART0: shared = {}", shared).unwrap();
hprintln!("UART0:l2 = {}", cx.resources.l2).unwrap();
hprintln!("UART0:e1 = {}", cx.resources.e1).unwrap();
}
// `shared` can be accessed from this context
// e1 ok (lock_free)
#[task(priority = 1, binds = UART1, resources = [shared, e1])]
fn uart1(mut cx: uart1::Context) {
let shared = cx.resources.shared.lock(|shared| {
*shared += 1;
*shared
});
hprintln!("UART1: shared = {}", shared).unwrap();
hprintln!("UART1:e1 = {}", cx.resources.e1).unwrap();
}
}
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