Struct r3::kernel::State

pub struct State<System: KernelCfg2, PortTaskState: 'static = <System as PortThreading>::PortTaskState, TaskReadyQueue: 'static = <System as KernelCfg1>::TaskReadyQueue, TaskPriority: 'static = <System as KernelCfg1>::TaskPriority, TimeoutHeap: 'static = <System as KernelCfg2>::TimeoutHeap> { /* fields omitted */ }

Global kernel state.

Implementations

impl<System: KernelCfg2> State<System>

pub fn running_task_ptr(&self) -> *mut Option<&'static TaskCb<System>>

Get a pointer to the variable storing the currently running task.

Reading the variable is safe as long as the read is free of data race. Note that only the dispatcher (that calls PortToKernel::choose_running_task) can modify the variable asynchonously. For example, it's safe to read it in a task context. It's also safe to read it in the dispatcher. On the other hand, reading it in a non-task context (except for the dispatcher, of course) may lead to an undefined behavior unless CPU Lock is activated while reading the variable.

Writing the variable is not allowed.

Trait Implementations

impl<System: Kernel, PortTaskState: 'static + Debug, TaskReadyQueue: 'static + Debug, TaskPriority: 'static + Debug, TimeoutHeap: 'static + Debug> Debug for State<System, PortTaskState, TaskReadyQueue, TaskPriority, TimeoutHeap>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<System: KernelCfg2, PortTaskState: 'static, TaskReadyQueue: 'static + Init, TaskPriority: 'static, TimeoutHeap: 'static + Init> Init for State<System, PortTaskState, TaskReadyQueue, TaskPriority, TimeoutHeap>

const INIT: Self

The default value.