Trait drone_core::thr::SoftThread

pub unsafe trait SoftThread: Thread {
    fn pending() -> *const AtomicU32;
    fn pending_priority() -> *const AtomicU8;
    fn priority(&self) -> *const AtomicU8;

    unsafe fn set_pending(thr_idx: u16) { ... }
    unsafe fn will_preempt(thr_idx: u16) -> bool { ... }
    fn preempt() { ... }
}

Software-managed thread.

Safety

SoftThread::pending must point to an array with pending_size number of elements.

Required methods

fn pending() -> *const AtomicU32

Returns a raw pointer to the pending state storage.

fn pending_priority() -> *const AtomicU8

Returns a raw pointer to the pending thread priority storage.

fn priority(&self) -> *const AtomicU8

Returns a raw pointer to the thread priority storage.

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Provided methods

unsafe fn set_pending(thr_idx: u16)

Sets the thr_idx thread pending.

See the trait level documentation for details.

Safety

• thr_idx must be less than Thread::COUNT.
• This function doesn’t check for the thread token ownership.

unsafe fn will_preempt(thr_idx: u16) -> bool

Sets the thr_idx thread pending and returns true if the thread priority is higher than the currently priority.

If this function returned true, a subsequent call to SoftThread::preempt is needed.

Safety

• thr_idx must be less than Thread::COUNT.
• This function doesn’t check for the thread token ownership.

fn preempt()

Runs all pending threads with higher priorities than the current priority.

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Implementors

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