examples/lock fixed

This commit is contained in:
Per Lindgren 2023-01-07 14:23:32 +01:00 committed by Henrik Tjäder
parent 77ca19bf73
commit 621982fa16
2 changed files with 11 additions and 9 deletions

View file

@ -4,6 +4,7 @@
#![deny(warnings)]
#![no_main]
#![no_std]
#![feature(type_alias_impl_trait)]
use panic_semihosting as _;
@ -21,14 +22,14 @@ mod app {
struct Local {}
#[init]
fn init(_: init::Context) -> (Shared, Local, init::Monotonics) {
fn init(_: init::Context) -> (Shared, Local) {
foo::spawn().unwrap();
(Shared { counter: 0 }, Local {}, init::Monotonics())
(Shared { counter: 0 }, Local {})
}
#[task(shared = [counter])] // <- same priority
fn foo(c: foo::Context) {
async fn foo(c: foo::Context) {
bar::spawn().unwrap();
*c.shared.counter += 1; // <- no lock API required
@ -37,7 +38,7 @@ mod app {
}
#[task(shared = [counter])] // <- same priority
fn bar(c: bar::Context) {
async fn bar(c: bar::Context) {
foo::spawn().unwrap();
*c.shared.counter += 1; // <- no lock API required

View file

@ -4,6 +4,7 @@
#![deny(warnings)]
#![no_main]
#![no_std]
#![feature(type_alias_impl_trait)]
use panic_semihosting as _;
@ -20,15 +21,15 @@ mod app {
struct Local {}
#[init]
fn init(_: init::Context) -> (Shared, Local, init::Monotonics) {
fn init(_: init::Context) -> (Shared, Local) {
foo::spawn().unwrap();
(Shared { shared: 0 }, Local {}, init::Monotonics())
(Shared { shared: 0 }, Local {})
}
// when omitted priority is assumed to be `1`
#[task(shared = [shared])]
fn foo(mut c: foo::Context) {
async fn foo(mut c: foo::Context) {
hprintln!("A").unwrap();
// the lower priority task requires a critical section to access the data
@ -53,7 +54,7 @@ mod app {
}
#[task(priority = 2, shared = [shared])]
fn bar(mut c: bar::Context) {
async fn bar(mut c: bar::Context) {
// the higher priority task does still need a critical section
let shared = c.shared.shared.lock(|shared| {
*shared += 1;
@ -65,7 +66,7 @@ mod app {
}
#[task(priority = 3)]
fn baz(_: baz::Context) {
async fn baz(_: baz::Context) {
hprintln!("C").unwrap();
}
}