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Diffstat (limited to 'examples/t-resource.rs')
-rw-r--r-- | examples/t-resource.rs | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/examples/t-resource.rs b/examples/t-resource.rs new file mode 100644 index 00000000..40dc2a65 --- /dev/null +++ b/examples/t-resource.rs @@ -0,0 +1,77 @@ +//! [compile-pass] Check code generation of resources + +#![deny(unsafe_code)] +#![deny(warnings)] +#![no_main] +#![no_std] + +use panic_halt as _; + +#[rtfm::app(device = lm3s6965)] +const APP: () = { + static mut O1: u32 = 0; // init + static mut O2: u32 = 0; // idle + static mut O3: u32 = 0; // EXTI0 + static O4: u32 = 0; // idle + static O5: u32 = 0; // EXTI1 + static O6: u32 = 0; // init + + static mut S1: u32 = 0; // idle & EXTI0 + static mut S2: u32 = 0; // EXTI0 & EXTI1 + static S3: u32 = 0; + + #[init(resources = [O1, O4, O5, O6, S3])] + fn init(c: init::Context) { + // owned by `init` == `&'static mut` + let _: &'static mut u32 = c.resources.O1; + + // owned by `init` == `&'static` if read-only + let _: &'static u32 = c.resources.O6; + + // `init` has exclusive access to all resources + let _: &mut u32 = c.resources.O4; + let _: &mut u32 = c.resources.O5; + let _: &mut u32 = c.resources.S3; + } + + #[idle(resources = [O2, O4, S1, S3])] + fn idle(mut c: idle::Context) -> ! { + // owned by `idle` == `&'static mut` + let _: &'static mut u32 = c.resources.O2; + + // owned by `idle` == `&'static` if read-only + let _: &'static u32 = c.resources.O4; + + // shared with `idle` == `Mutex` + c.resources.S1.lock(|_| {}); + + // `&` if read-only + let _: &u32 = c.resources.S3; + + loop {} + } + + #[interrupt(resources = [O3, S1, S2, S3])] + fn UART0(c: UART0::Context) { + // owned by interrupt == `&mut` + let _: &mut u32 = c.resources.O3; + + // no `Mutex` proxy when access from highest priority task + let _: &mut u32 = c.resources.S1; + + // no `Mutex` proxy when co-owned by cooperative (same priority) tasks + let _: &mut u32 = c.resources.S2; + + // `&` if read-only + let _: &u32 = c.resources.S3; + } + + #[interrupt(resources = [S2, O5])] + fn UART1(c: UART1::Context) { + // owned by interrupt == `&` if read-only + let _: &u32 = c.resources.O5; + + // no `Mutex` proxy when co-owned by cooperative (same priority) tasks + let _: &mut u32 = c.resources.S2; + } +}; |