From 487fea45ce15ea375192f72ddb148dda8414873b Mon Sep 17 00:00:00 2001 From: Henrik Tjäder Date: Thu, 4 Jun 2020 15:43:16 +0000 Subject: Keep user code as-is within the module, add example --- examples/resource-user-struct.rs | 60 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 examples/resource-user-struct.rs (limited to 'examples/resource-user-struct.rs') diff --git a/examples/resource-user-struct.rs b/examples/resource-user-struct.rs new file mode 100644 index 00000000..132aa349 --- /dev/null +++ b/examples/resource-user-struct.rs @@ -0,0 +1,60 @@ +//! examples/resource.rs + +#![deny(unsafe_code)] +#![deny(warnings)] +#![no_main] +#![no_std] + +use cortex_m_semihosting::{debug, hprintln}; +use lm3s6965::Interrupt; +use panic_semihosting as _; + +#[rtic::app(device = lm3s6965)] +mod app { + #[resources] + struct Resources { + // A resource + #[init(0)] + shared: u32, + } + + // Should not collide with the struct above + struct Resources2 { + // A resource + shared: u32, + } + + #[init] + fn init(_: init::Context) { + rtic::pend(Interrupt::UART0); + rtic::pend(Interrupt::UART1); + } + + // `shared` cannot be accessed from this context + #[idle] + fn idle(_cx: idle::Context) -> ! { + debug::exit(debug::EXIT_SUCCESS); + + // error: no `resources` field in `idle::Context` + // _cx.resources.shared += 1; + + loop {} + } + + // `shared` can be accessed from this context + #[task(binds = UART0, resources = [shared])] + fn uart0(cx: uart0::Context) { + let shared: &mut u32 = cx.resources.shared; + *shared += 1; + + hprintln!("UART0: shared = {}", shared).unwrap(); + } + + // `shared` can be accessed from this context + #[task(binds = UART1, resources = [shared])] + fn uart1(cx: uart1::Context) { + *cx.resources.shared += 1; + + hprintln!("UART1: shared = {}", cx.resources.shared).unwrap(); + } +} -- cgit v1.2.3 From 4b40ff00b6c91bc10a4e32bf19449da0ecb0e14d Mon Sep 17 00:00:00 2001 From: Henrik Tjäder Date: Thu, 4 Jun 2020 16:06:18 +0000 Subject: Workaround lint for now --- examples/resource-user-struct.rs | 1 + 1 file changed, 1 insertion(+) (limited to 'examples/resource-user-struct.rs') diff --git a/examples/resource-user-struct.rs b/examples/resource-user-struct.rs index 132aa349..dbda9a3f 100644 --- a/examples/resource-user-struct.rs +++ b/examples/resource-user-struct.rs @@ -19,6 +19,7 @@ mod app { } // Should not collide with the struct above + #[allow(dead_code)] struct Resources2 { // A resource shared: u32, -- cgit v1.2.3