How to limit a number of web workers

Question

I use web workers to calculate a bit of information in my application. And I don't want to kill the application with an increasing number of web workers so I need to limit creating new workers somehow.

My guess was that I could get a number of currently running workers. Is it possible?

Or maybe you can suggest any technique to limit creating of new ones? I was thinking about a global counter, but is it safe to use it with async workers?

score 1 · Accepted Answer · 2014-02-24 17:38:16Z

Global counter is one way, allocating a dedicated array is another - something like for instance:

var workers = []; function spawnWorker(srcUrl) { if (workers.length < limit) { var worker = new Worker(srcUrl); workers.push(worker); ...setup handlers... return true; } else { return false; } }

This way you will have easy access to the workers as well.

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