driving async ops in deno_core

What's the correct way to run a single tick of the event loop in deno_coredeno_core? I'm using poll_event_looppoll_event_loop, but the result is always pending (i.e. the timers created with core.queueUserTimercore.queueUserTimer are never resolving). Is there something else I need to poll?

If I use tokio.block_on(run_event_loop)tokio.block_on(run_event_loop) it works correctly, but I only want to run a single tick.

My code currently looks like this:

let mut cx = std::task::Context::from_waker(futures::task::noop_waker_ref());
let res = runtime
    .js
    .poll_event_loop(&mut cx, PollEventLoopOptions::default());

let mut cx = std::task::Context::from_waker(futures::task::noop_waker_ref());
let res = runtime
    .js
    .poll_event_loop(&mut cx, PollEventLoopOptions::default());

Thanks!

Deno•2y ago•

2 replies

cab

driving async ops in deno_core

let mut cx = std::task::Context::from_waker(futures::task::noop_waker_ref());
let res = runtime
    .js
    .poll_event_loop(&mut cx, PollEventLoopOptions::default());

let mut cx = std::task::Context::from_waker(futures::task::noop_waker_ref());
let res = runtime
    .js
    .poll_event_loop(&mut cx, PollEventLoopOptions::default());

Thanks!

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driving async ops in deno_core

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