Struct asyncio::IoContext

pub struct IoContext(_);

Methods

impl IoContext

fn new() -> Result<IoContext>

Returns a new IoContext.

Panics

Panics if too many open files.

Examples

use asyncio::IoContext;

IoContext::new().unwrap();

fn dispatch<F>(&self, func: F) where F: FnOnce(&IoContext) + Send + 'static

Requests a process to invoke the given handler.

Examples

use asyncio::IoContext;
use std::sync::atomic::{Ordering, AtomicUsize, ATOMIC_USIZE_INIT};

static COUNT: AtomicUsize = ATOMIC_USIZE_INIT;

let ctx = IoContext::new().unwrap();
ctx.dispatch(|_| { COUNT.fetch_add(1, Ordering::SeqCst); });
ctx.dispatch(|_| { COUNT.fetch_add(1, Ordering::SeqCst); });
ctx.dispatch(|_| { COUNT.fetch_add(1, Ordering::SeqCst); });
assert_eq!(COUNT.load(Ordering::Relaxed), 0);

ctx.run();
assert_eq!(COUNT.load(Ordering::Relaxed), 3);

fn post<F>(&self, func: F) where F: FnOnce(&IoContext) + Send + 'static

Requests a process to invoke the given handler and return immediately.

Examples

use asyncio::IoContext;
use std::sync::atomic::{Ordering, AtomicUsize, ATOMIC_USIZE_INIT};

static COUNT: AtomicUsize = ATOMIC_USIZE_INIT;

let ctx = IoContext::new().unwrap();
ctx.post(|_| { COUNT.fetch_add(1, Ordering::SeqCst); });
ctx.post(|_| { COUNT.fetch_add(1, Ordering::SeqCst); });
ctx.post(|_| { COUNT.fetch_add(1, Ordering::SeqCst); });
assert_eq!(COUNT.load(Ordering::Relaxed), 0);

ctx.run();
assert_eq!(COUNT.load(Ordering::Relaxed), 3);

fn restart(&self) -> bool

Resets a stopped IoContext.

Examples

use asyncio::IoContext;

let ctx = IoContext::new().unwrap();
assert_eq!(ctx.stopped(), false);
ctx.stop();
assert_eq!(ctx.stopped(), true);
ctx.restart();
assert_eq!(ctx.stopped(), false);

fn run(&self) -> usize

Runs all given handlers.

Examples

use asyncio::IoContext;

let ctx = IoContext::new().unwrap();
ctx.run();

fn run_one(&self) -> usize

fn stop(&self)

Sets a stop request and cancel all of the waiting event in an IoContext.

Examples

use asyncio::IoContext;

let ctx = IoContext::new().unwrap();
ctx.stop();

fn stopped(&self) -> bool

Returns true if this has been stopped.

Examples

use asyncio::IoContext;

let ctx = IoContext::new().unwrap();
assert_eq!(ctx.stopped(), false);
ctx.stop();
assert_eq!(ctx.stopped(), true);

fn work(ctx: &IoContext) -> IoContextWork

impl IoContext

fn strand<'a, T>(ctx: &'a IoContext, data: T) -> StrandImmutable<'a, T>

impl IoContext

fn spawn<F>(ctx: &IoContext, func: F) where F: FnOnce(Coroutine) + 'static

Trait Implementations

impl Clone for IoContext

fn clone(&self) -> IoContext

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for IoContext

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl AsIoContext for IoContext

fn as_ctx(&self) -> &IoContext

impl Send for IoContext