Struct cros_async::sys::linux::fd_executor::EpollReactor

pub struct EpollReactor {
    poll_ctx: WaitContext<usize>,
    ops: Mutex<Slab<OpStatus>>,
    wake_event: Event,
}

Reactor that manages async IO work using epoll.

Fields

poll_ctx: WaitContext<usize>

ops: Mutex<Slab<OpStatus>>

wake_event: Event

Implementations

impl EpollReactor

fn new() -> Result<Self>

fn add_operation( &self, file: Arc<OwnedFd>, event_type: EventType, ) -> Result<WakerToken>

fn is_ready(&self, token: &WakerToken, cx: &mut Context<'_>) -> bool

fn cancel_operation(&self, token: WakerToken) -> Result<()>

Trait Implementations

impl AsRawDescriptors for EpollReactor

fn as_raw_descriptors(&self) -> Vec<RawDescriptor>

Returns the underlying raw descriptors.

impl Reactor for EpollReactor

fn new() -> Result<Self>

fn wake(&self)

Wake up any pending wait_for_work calls. If there are none pending, then wake up the next wait_for_work call (necessary to avoid race conditions).

fn on_executor_drop<'a>(&'a self) -> Pin<Box<dyn Future<Output = ()> + 'a>>

Called when the executor is being dropped to allow orderly shutdown (e.g. cancelling IO work). The returned future will be run to completion.

fn wait_for_work(&self, set_processing: impl Fn()) -> Result<()>

Block until an event occurs (e.g. IO work is ready) or until wake is called.

fn new_source<F: AsRawDescriptor>( &self, ex: &Arc<RawExecutor<Self>>, f: F, ) -> AsyncResult<IoSource<F>>

Create an IoSource for the backend.

fn wrap_task_handle<R>(task: RawTaskHandle<EpollReactor, R>) -> TaskHandle<R>

fn on_thread_start(&self)

Called when an executor run loop starts on a thread.