diff options
Diffstat (limited to 'examples/async-timeout.no_rs')
| -rw-r--r-- | examples/async-timeout.no_rs | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/examples/async-timeout.no_rs b/examples/async-timeout.no_rs deleted file mode 100644 index 3f68df7..0000000 --- a/examples/async-timeout.no_rs +++ /dev/null @@ -1,87 +0,0 @@ -#![no_main] -#![no_std] -#![feature(type_alias_impl_trait)] - -use panic_semihosting as _; - -// NOTES: -// -// - Async tasks cannot have `#[lock_free]` resources, as they can interleve and each async -// task can have a mutable reference stored. -// - Spawning an async task equates to it being polled once. - -#[rtic::app(device = lm3s6965, dispatchers = [SSI0, UART0], peripherals = true)] -mod app { - use core::{ - future::Future, - pin::Pin, - task::{Context, Poll}, - }; - use cortex_m_semihosting::{debug, hprintln}; - use systick_monotonic::*; - - #[shared] - struct Shared {} - - #[local] - struct Local {} - - #[monotonic(binds = SysTick, default = true)] - type MyMono = Systick<100>; - - #[init] - fn init(cx: init::Context) -> (Shared, Local, init::Monotonics) { - hprintln!("init").unwrap(); - - foo::spawn().ok(); - bar::spawn().ok(); - - ( - Shared {}, - Local {}, - init::Monotonics(Systick::new(cx.core.SYST, 12_000_000)), - ) - } - - #[idle] - fn idle(_: idle::Context) -> ! { - loop { - cortex_m::asm::wfi(); // put the MCU in sleep mode until interrupt occurs - } - } - - #[task] - async fn foo(_cx: foo::Context) { - hprintln!("hello from foo").ok(); - - // This will not timeout - match monotonics::timeout_after(monotonics::delay(100.millis()), 200.millis()).await { - Ok(_) => hprintln!("foo no timeout").ok(), - Err(_) => hprintln!("foo timeout").ok(), - }; - } - - #[task] - async fn bar(_cx: bar::Context) { - hprintln!("hello from bar").ok(); - - // This will timeout - match monotonics::timeout_after(NeverEndingFuture {}, 300.millis()).await { - Ok(_) => hprintln!("bar no timeout").ok(), - Err(_) => hprintln!("bar timeout").ok(), - }; - - debug::exit(debug::EXIT_SUCCESS); - } - - pub struct NeverEndingFuture {} - - impl Future for NeverEndingFuture { - type Output = (); - - fn poll(self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<Self::Output> { - // Never finish - Poll::Pending - } - } -} |
