Module sync 

Async synchronization primitives.

Re-exports

pub use channel::Channel;

pub use channel::Receiver;

pub use channel::Sender;

pub use once::Once;

pub use semaphore::Semaphore;

pub use signal::Signal;

Modules

atomic

Atomic shim: loom::sync::atomic under permutation testing, otherwise core::sync::atomic — or, on a target with no native RMW atomics (see the atomics-polyfill feature), portable_atomic instead (plan.md §1.3).

channel

Static SPSC (Single-Producer Single-Consumer) channel.

once

A minimal no_std Once cell: written exactly once (at boot), read-only afterwards. Used for the Channel::split-once pattern (plan.md [B8]): the sender/receiver halves of a static channel are stored here once at boot and borrowed by tasks for the lifetime of the program.

semaphore

Async counting semaphore.

signal

A one-shot, latching wake-up handoff between an external context (an ISR, another hart, another task) and exactly one waiting task.