Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Awaitable timers #7340

Closed
jasnell opened this issue Nov 16, 2021 · 2 comments
Closed

Awaitable timers #7340

jasnell opened this issue Nov 16, 2021 · 2 comments

Comments

@jasnell
Copy link

jasnell commented Nov 16, 2021

In Node.js 15.x, we introduced the concept of awaitable timers... variants of setTimeout() and setInterval() that return promises. For instance:

https://nodejs.org/dist/latest-v17.x/docs/api/timers.html#timers-promises-api

import { setTimeout } from 'timers/promises';

// Halts execution for approximately 1 second without blocking the event loop
await setTimeout(1000);

https://nodejs.org/dist/latest-v17.x/docs/api/timers.html#timerspromisessetintervaldelay-value-options

import { setInterval } from 'timers/promises';

// Iterates approximately once per second without blocking the event loop
for await (const _ of setInterval(1000) {
  console.log('.');
}

These have proven to be very useful for a number of cases and I believe it's worthwhile to at least discuss whether they should be standardized in some variation within the HTML spec.

@annevk
Copy link
Member

annevk commented Nov 16, 2021

See https://wicg.github.io/scheduling-apis/#sec-scheduler. The idea is that scheduler.postTask() is that API. The other thing we want to do is introduce AbortSignal.timeout(): whatwg/dom#951.

@domenic
Copy link
Member

domenic commented Nov 16, 2021

Let's dupe into #617 and continue the discussion there.

@domenic domenic closed this as completed Nov 16, 2021
jasnell added a commit to jasnell/node that referenced this issue Nov 21, 2021
Adds experimental implementations of the yield and wait APIs being
explored at https://github.com/WICG/scheduling-apis.

When I asked the WHATWG folks about the possibility of standardizing the
[awaitable versions of setTimeout/setImmediate](whatwg/html#7340)
that we have implemented in `timers/promises`, they pointed at the work
in progress scheduling APIs draft as they direction they'll be going.
While there is definitely a few thing in that draft that have
questionable utility to Node.js, the yield and wait APIs map cleanly to
the setImmediate and setTimeout we already have.

Signed-off-by: James M Snell <[email protected]>
jasnell added a commit to jasnell/node that referenced this issue Dec 2, 2021
Adds experimental implementations of the yield and wait APIs being
explored at https://github.com/WICG/scheduling-apis.

When I asked the WHATWG folks about the possibility of standardizing the
[awaitable versions of setTimeout/setImmediate](whatwg/html#7340)
that we have implemented in `timers/promises`, they pointed at the work
in progress scheduling APIs draft as they direction they'll be going.
While there is definitely a few thing in that draft that have
questionable utility to Node.js, the yield and wait APIs map cleanly to
the setImmediate and setTimeout we already have.

Signed-off-by: James M Snell <[email protected]>
jasnell added a commit to nodejs/node that referenced this issue Dec 5, 2021
Adds experimental implementations of the yield and wait APIs being
explored at https://github.com/WICG/scheduling-apis.

When I asked the WHATWG folks about the possibility of standardizing the
[awaitable versions of setTimeout/setImmediate](whatwg/html#7340)
that we have implemented in `timers/promises`, they pointed at the work
in progress scheduling APIs draft as they direction they'll be going.
While there is definitely a few thing in that draft that have
questionable utility to Node.js, the yield and wait APIs map cleanly to
the setImmediate and setTimeout we already have.

Signed-off-by: James M Snell <[email protected]>

PR-URL: #40909
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
danielleadams pushed a commit to nodejs/node that referenced this issue Dec 14, 2021
Adds experimental implementations of the yield and wait APIs being
explored at https://github.com/WICG/scheduling-apis.

When I asked the WHATWG folks about the possibility of standardizing the
[awaitable versions of setTimeout/setImmediate](whatwg/html#7340)
that we have implemented in `timers/promises`, they pointed at the work
in progress scheduling APIs draft as they direction they'll be going.
While there is definitely a few thing in that draft that have
questionable utility to Node.js, the yield and wait APIs map cleanly to
the setImmediate and setTimeout we already have.

Signed-off-by: James M Snell <[email protected]>

PR-URL: #40909
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
danielleadams pushed a commit to nodejs/node that referenced this issue Jan 31, 2022
Adds experimental implementations of the yield and wait APIs being
explored at https://github.com/WICG/scheduling-apis.

When I asked the WHATWG folks about the possibility of standardizing the
[awaitable versions of setTimeout/setImmediate](whatwg/html#7340)
that we have implemented in `timers/promises`, they pointed at the work
in progress scheduling APIs draft as they direction they'll be going.
While there is definitely a few thing in that draft that have
questionable utility to Node.js, the yield and wait APIs map cleanly to
the setImmediate and setTimeout we already have.

Signed-off-by: James M Snell <[email protected]>

PR-URL: #40909
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
danielleadams pushed a commit to nodejs/node that referenced this issue Jan 31, 2022
Adds experimental implementations of the yield and wait APIs being
explored at https://github.com/WICG/scheduling-apis.

When I asked the WHATWG folks about the possibility of standardizing the
[awaitable versions of setTimeout/setImmediate](whatwg/html#7340)
that we have implemented in `timers/promises`, they pointed at the work
in progress scheduling APIs draft as they direction they'll be going.
While there is definitely a few thing in that draft that have
questionable utility to Node.js, the yield and wait APIs map cleanly to
the setImmediate and setTimeout we already have.

Signed-off-by: James M Snell <[email protected]>

PR-URL: #40909
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
Linkgoron pushed a commit to Linkgoron/node that referenced this issue Jan 31, 2022
Adds experimental implementations of the yield and wait APIs being
explored at https://github.com/WICG/scheduling-apis.

When I asked the WHATWG folks about the possibility of standardizing the
[awaitable versions of setTimeout/setImmediate](whatwg/html#7340)
that we have implemented in `timers/promises`, they pointed at the work
in progress scheduling APIs draft as they direction they'll be going.
While there is definitely a few thing in that draft that have
questionable utility to Node.js, the yield and wait APIs map cleanly to
the setImmediate and setTimeout we already have.

Signed-off-by: James M Snell <[email protected]>

PR-URL: nodejs#40909
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
danielleadams pushed a commit to nodejs/node that referenced this issue Feb 1, 2022
Adds experimental implementations of the yield and wait APIs being
explored at https://github.com/WICG/scheduling-apis.

When I asked the WHATWG folks about the possibility of standardizing the
[awaitable versions of setTimeout/setImmediate](whatwg/html#7340)
that we have implemented in `timers/promises`, they pointed at the work
in progress scheduling APIs draft as they direction they'll be going.
While there is definitely a few thing in that draft that have
questionable utility to Node.js, the yield and wait APIs map cleanly to
the setImmediate and setTimeout we already have.

Signed-off-by: James M Snell <[email protected]>

PR-URL: #40909
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>
Reviewed-By: Benjamin Gruenbaum <[email protected]>
Reviewed-By: Darshan Sen <[email protected]>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Development

No branches or pull requests

3 participants