rtic/examples/multilock.rs

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//! examples/mutlilock.rs
#![deny(unsafe_code)]
#![deny(warnings)]
#![no_main]
#![no_std]
use panic_semihosting as _;
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#[rtic::app(device = lm3s6965, dispatchers = [GPIOA])]
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mod app {
use cortex_m_semihosting::{debug, hprintln};
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#[shared]
struct Shared {
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shared1: u32,
shared2: u32,
shared3: u32,
}
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#[local]
struct Local {}
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#[init]
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fn init(_: init::Context) -> (Shared, Local, init::Monotonics) {
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locks::spawn().unwrap();
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(
Shared {
shared1: 0,
shared2: 0,
shared3: 0,
},
Local {},
init::Monotonics(),
)
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}
// when omitted priority is assumed to be `1`
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#[task(shared = [shared1, shared2, shared3])]
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fn locks(c: locks::Context) {
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let s1 = c.shared.shared1;
let s2 = c.shared.shared2;
let s3 = c.shared.shared3;
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(s1, s2, s3).lock(|s1, s2, s3| {
*s1 += 1;
*s2 += 1;
*s3 += 1;
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hprintln!("Multiple locks, s1: {}, s2: {}, s3: {}", *s1, *s2, *s3).unwrap();
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});
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debug::exit(debug::EXIT_SUCCESS); // Exit QEMU simulator
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}
}