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-rw-r--r--examples/generator.rs55
1 files changed, 23 insertions, 32 deletions
diff --git a/examples/generator.rs b/examples/generator.rs
index bc51bc9c..a6293c38 100644
--- a/examples/generator.rs
+++ b/examples/generator.rs
@@ -7,34 +7,18 @@
#![no_std]
use core::ops::Generator;
-// use core::mem::MaybeUninit;
-
-// // #[task(binds = EXTI0, resources = [x])]
-// // fn bar(cx: bar::Context) {
-// // let x = cx.resources.x;
-// // }
-
-// // expansion
-// type Foo = impl Generator<Yield = (), Return = !>;
-
-// static mut X: MaybeUninit<Foo> = MaybeUninit::uninit();
-
-// fn main() {
-// // init();
-// unsafe {
-// X.as_mut_ptr().write(foo());
-// }
-// // idle();
-// }
-
-// #![deny(unsafe_code)]
-
use cortex_m_semihosting::{debug, hprintln};
use lm3s6965::Interrupt;
use panic_semihosting as _;
+use rtfm::{Exclusive, Mutex};
#[rtfm::app(device = lm3s6965)]
const APP: () = {
+ struct Resources {
+ #[init(0)]
+ shared: u32,
+ }
+
#[init]
fn init(_: init::Context) {
hprintln!("init").unwrap();
@@ -43,28 +27,35 @@ const APP: () = {
#[idle]
fn idle(_: idle::Context) -> ! {
- static mut X: u32 = 0;
-
- // Safe access to local `static mut` variable
- let _x: &'static mut u32 = X;
hprintln!("idle").unwrap();
+ rtfm::pend(Interrupt::GPIOA);
+ rtfm::pend(Interrupt::GPIOA);
debug::exit(debug::EXIT_SUCCESS);
loop {}
}
- // #[task(binds = GPIOA, resources = [x])]
- // in user code the return type will be `impl Generator<..>`
- #[task(binds = GPIOA)]
+ #[task(binds = GPIOA, resources = [shared])]
+ // fn foo1(ctx: &'static mut foo1::Context) -> impl Generator<Yield = (), Return = !> {
fn foo1(ctx: foo1::Context) -> impl Generator<Yield = (), Return = !> {
+ let mut local = 0;
+ //let shared_res = Exclusive(ctx.resources.shared);
+ // static shared_res : &mut u32 = ctx.resources.shared;
move || loop {
- // x.lock(|_| {});
- hprintln!("foo1_1").unwrap();
+ hprintln!("foo1_1 {}", local).unwrap();
+ local += 1;
+ // shared_res.lock(|s| hprintln!("s {}", s));
+ // *shared_res += 1;
+ // *ctx.resources.shared += 1;
yield;
- hprintln!("foo1_2").unwrap();
+ hprintln!("foo1_2 {}", local).unwrap();
+ local += 1;
yield;
}
}
+
+ // #[task(binds = GPIOB, resources = [shared], priority = 2)]
+ // fn foo2(ctx: foo2::Context) {}
};