diff options
Diffstat (limited to 'examples/generics.rs')
-rw-r--r-- | examples/generics.rs | 54 |
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(); } |