diff options
Diffstat (limited to 'src/lib.rs')
| -rw-r--r-- | src/lib.rs | 127 |
1 files changed, 9 insertions, 118 deletions
@@ -1,123 +1,14 @@ -//! Real-Time Interrupt-driven Concurrency (RTIC) framework for ARM Cortex-M microcontrollers. -//! -//! **IMPORTANT**: This crate is published as [`cortex-m-rtic`] on crates.io but the name of the -//! library is `rtic`. -//! -//! [`cortex-m-rtic`]: https://crates.io/crates/cortex-m-rtic -//! -//! The user level documentation can be found [here]. -//! -//! [here]: https://rtic.rs -//! -//! Don't forget to check the documentation of the `#[app]` attribute (listed under the reexports -//! section), which is the main component of the framework. -//! -//! # Minimum Supported Rust Version (MSRV) -//! -//! This crate is compiled and tested with the latest toolchain (rolling) as of the release date. -//! If you run into compilation errors, try the latest stable release of the rust toolchain. -//! -//! # Semantic Versioning -//! -//! Like the Rust project, this crate adheres to [SemVer]: breaking changes in the API and semantics -//! require a *semver bump* (since 1.0.0 a new major version release), with the exception of breaking changes -//! that fix soundness issues -- those are considered bug fixes and can be landed in a new patch -//! release. -//! -//! [SemVer]: https://semver.org/spec/v2.0.0.html - -#![deny(missing_docs)] -#![deny(rust_2021_compatibility)] -#![deny(rust_2018_compatibility)] -#![deny(rust_2018_idioms)] -#![no_std] -#![doc( - html_logo_url = "https://raw.githubusercontent.com/rtic-rs/cortex-m-rtic/master/book/en/src/RTIC.svg", - html_favicon_url = "https://raw.githubusercontent.com/rtic-rs/cortex-m-rtic/master/book/en/src/RTIC.svg" -)] -//deny_warnings_placeholder_for_ci -#![allow(clippy::inline_always)] - -use cortex_m::{interrupt::InterruptNumber, peripheral::NVIC}; -pub use cortex_m_rtic_macros::app; -pub use rtic_core::{prelude as mutex_prelude, Exclusive, Mutex}; -pub use rtic_monotonic::{self, Monotonic}; - -/// module `mutex::prelude` provides `Mutex` and multi-lock variants. Recommended over `mutex_prelude` -pub mod mutex { - pub use rtic_core::prelude; - pub use rtic_core::Mutex; -} - -#[doc(hidden)] -pub mod export; -#[doc(hidden)] -mod tq; - -/// Sets the given `interrupt` as pending -/// -/// This is a convenience function around -/// [`NVIC::pend`](../cortex_m/peripheral/struct.NVIC.html#method.pend) -pub fn pend<I>(interrupt: I) -where - I: InterruptNumber, -{ - NVIC::pend(interrupt); +pub fn add(left: usize, right: usize) -> usize { + left + right } -use core::cell::UnsafeCell; +#[cfg(test)] +mod tests { + use super::*; -/// Internal replacement for `static mut T` -/// -/// Used to represent RTIC Resources -/// -/// Soundness: -/// 1) Unsafe API for internal use only -/// 2) ``get_mut(&self) -> *mut T`` -/// returns a raw mutable pointer to the inner T -/// casting to &mut T is under control of RTIC -/// RTIC ensures &mut T to be unique under Rust aliasing rules. -/// -/// Implementation uses the underlying ``UnsafeCell<T>`` -/// self.0.get() -> *mut T -/// -/// 3) get(&self) -> *const T -/// returns a raw immutable (const) pointer to the inner T -/// casting to &T is under control of RTIC -/// RTIC ensures &T to be shared under Rust aliasing rules. -/// -/// Implementation uses the underlying ``UnsafeCell<T>`` -/// self.0.get() -> *mut T, demoted to *const T -/// -#[repr(transparent)] -pub struct RacyCell<T>(UnsafeCell<T>); - -impl<T> RacyCell<T> { - /// Create a ``RacyCell`` - #[inline(always)] - pub const fn new(value: T) -> Self { - RacyCell(UnsafeCell::new(value)) - } - - /// Get `*mut T` - /// - /// # Safety - /// - /// See documentation notes for [`RacyCell`] - #[inline(always)] - pub unsafe fn get_mut(&self) -> *mut T { - self.0.get() - } - - /// Get `*const T` - /// - /// # Safety - /// - /// See documentation notes for [`RacyCell`] - #[inline(always)] - pub unsafe fn get(&self) -> *const T { - self.0.get() + #[test] + fn it_works() { + let result = add(2, 2); + assert_eq!(result, 4); } } - -unsafe impl<T> Sync for RacyCell<T> {} |