Struct scheduler::CFScheduler

pub struct CFScheduler<T> { /* private fields */ }

A simple Completely Fair Scheduler (CFS).

Implementations

impl<T> CFScheduler<T>

pub const fn new() -> Self

Creates a new empty CFScheduler.

pub fn scheduler_name() -> &'static str

get the name of scheduler

Trait Implementations

impl<T> BaseScheduler for CFScheduler<T>

type SchedItem = Arc<CFSTask<T>>

Type of scheduled entities. Often a task struct.

fn init(&mut self)

Initializes the scheduler.

fn add_task(&mut self, task: Self::SchedItem)

Adds a task to the scheduler.

fn remove_task(&mut self, task: &Self::SchedItem) -> Option<Self::SchedItem>

Removes a task by its reference from the scheduler. Returns the owned removed task with ownership if it exists.

fn pick_next_task(&mut self) -> Option<Self::SchedItem>

Picks the next task to run, it will be removed from the scheduler. Returns None if there is not runnable task.

fn put_prev_task(&mut self, prev: Self::SchedItem, _preempt: bool)

Puts the previous task back to the scheduler. The previous task is usually placed at the end of the ready queue, making it less likely to be re-scheduled.

fn task_tick(&mut self, current: &Self::SchedItem) -> bool

Advances the scheduler state at each timer tick. Returns true if re-scheduling is required.

fn set_priority(&mut self, task: &Self::SchedItem, prio: isize) -> bool

set priority for a task