[solved] Let other code runs when no more fiber

[dokithonon]

Hello,
I am in the process of migrating code to Meteor 3.0

We use to use a sleep function in big loop :

for (let i = 0; i <= 9999; i++) {
   if (row % 100 === 0) sleep(200);
   doStuff();
}

The sleep function is defined like this :

const Fiber = require('fibers');
const sleep = function (ms) {
    const fiber = Fiber.current;
    setTimeout(function () {
      fiber.run();
    }, ms);
    Fiber.yield();
  };

The purpose of this code was to stop the loop for 200 ms every 100 iterations to let eventually other methods to run.

As we won’t have fiber anymore, I suppose this won’t work anymore but I don’t know how to have the same behavior without fiber.

Do you guys have any idea ? Thanks

–
Some forum links

Hypothetical long running Fibers question

Think about what you’re saying. Throttling usage on a web server? You should try to run at 100% CPU and RAM, otherwise you’re wasting your precious AWS dollars On a more technical note. Don’t try to write a scheduler. Don’t try to schedule fibers or servers or processes. Throttle based on job size, which you can determine before running the job—that is, don’t start big jobs for users who don’t pay. Or set a time limit. Your load will be proportional to the number of jobs in fligh…

[schlaegerz]

You’ll want this to be an async function

const sleep = async function (ms) {
   return new Promise(resolve => setTimeout(resolve, ms));
 };

await sleep(500);

[jkuester]

Note, that async sleep will not work in array.forEach, you either need for..of or for (let i = ...)

[dokithonon]

Thanks to both of you. I have migrated my fiber-sleep to a non-fiber-sleep.
Have a nice weekend.