Devil's Advocate time.... What can you get from threading that you can't already get on a single thread? If I subclass Promise, make all of the relevant functions return this customized promise, I can create fairly easy to debug code that behaves as though it is multithreaded. I can even go 1 step further and do this for all of my code and essentially turn each function into a stand-alone fiber. Like this, I can get the benefit of thread-like behavior without the engine having to carry the burden of maintaining thread contexts on top of its own script contexts.
On Thu, Apr 25, 2019 at 1:41 PM Chinenye Onuegbu <[email protected]> wrote: > I am not exactly sure why multi-threading support in JavaScript has been > avoided, even though there is a strong case for real multi-threading > support in JavaScript. This is usually reflected in the race to fit every > event callback within 16ms to avoid dropping frames. > > To cover for some of these deficiencies, web workers, worker_threads, > process.fork, etc have been introduced in the past, all of which are > cumbersome to use. I understand that multi-threading is difficult to get > right, and it provides a number of challenges including making it easy to > create difficult-to-debug bugs, but I am of the opinion that we can at > least start a discussion on this. > > In light of this, I created a draft of what I think is a "safe" way to add > "user-space", first-class multi-threading support in JavaScript. The link > to the gist: > https://gist.github.com/xkizer/d63ac72ef48720c2066fbc9d3580ea90 > > A few things to note: > 1. I am not an expert in multi-threading, and could have made some > otherwise obvious wrong assumptions/blunders > 2. I am not an expert in JS engines, and do not know how easy/difficult > these are to actually bring to fruition > > I am looking for comments and constructive criticisms. Thanks in advance. > -- > Kizer > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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