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-rw-r--r--examples/generics.rs54
1 files changed, 30 insertions, 24 deletions
diff --git a/examples/generics.rs b/examples/generics.rs
index c8ce8393..3107dd11 100644
--- a/examples/generics.rs
+++ b/examples/generics.rs
@@ -5,58 +5,64 @@
#![no_main]
#![no_std]
-extern crate panic_semihosting;
-
use cortex_m_semihosting::{debug, hprintln};
use lm3s6965::Interrupt;
-use rtfm::{app, Mutex};
-
-#[app(device = lm3s6965)]
-const APP: () = {
- static mut SHARED: u32 = 0;
+use panic_semihosting as _;
+use rtic::{Exclusive, Mutex};
+
+#[rtic::app(device = lm3s6965)]
+mod app {
+ #[resources]
+ struct Resources {
+ #[init(0)]
+ shared: u32,
+ }
#[init]
- fn init() {
- rtfm::pend(Interrupt::UART0);
- rtfm::pend(Interrupt::UART1);
+ fn init(_: init::Context) -> init::LateResources {
+ rtic::pend(Interrupt::UART0);
+ rtic::pend(Interrupt::UART1);
+
+ init::LateResources {}
}
- #[interrupt(resources = [SHARED])]
- fn UART0() {
+ #[task(binds = UART0, resources = [shared])]
+ fn uart0(c: uart0::Context) {
static mut STATE: u32 = 0;
hprintln!("UART0(STATE = {})", *STATE).unwrap();
- advance(STATE, resources.SHARED);
+ // second argument has type `resources::shared`
+ advance(STATE, c.resources.shared);
- rtfm::pend(Interrupt::UART1);
+ rtic::pend(Interrupt::UART1);
debug::exit(debug::EXIT_SUCCESS);
}
- #[interrupt(priority = 2, resources = [SHARED])]
- fn UART1() {
+ #[task(binds = UART1, priority = 2, resources = [shared])]
+ fn uart1(c: uart1::Context) {
static mut STATE: u32 = 0;
hprintln!("UART1(STATE = {})", *STATE).unwrap();
- // just to show that `SHARED` can be accessed directly and ..
- *resources.SHARED += 0;
- // .. also through a (no-op) `lock`
- resources.SHARED.lock(|shared| *shared += 0);
+ // just to show that `shared` can be accessed directly
+ *c.resources.shared += 0;
- advance(STATE, resources.SHARED);
+ // second argument has type `Exclusive<u32>`
+ advance(STATE, Exclusive(c.resources.shared));
}
-};
+}
+// the second parameter is generic: it can be any type that implements the `Mutex` trait
fn advance(state: &mut u32, mut shared: impl Mutex<T = u32>) {
*state += 1;
- let (old, new) = shared.lock(|shared| {
+ let (old, new) = shared.lock(|shared: &mut u32| {
let old = *shared;
*shared += *state;
(old, *shared)
});
- hprintln!("SHARED: {} -> {}", old, new).unwrap();
+ hprintln!("shared: {} -> {}", old, new).unwrap();
}