How can I require modules in Worker instances? about node-webworker-threads HOT 7 CLOSED

So just to be clear, even if we use browserify to package required modules into something that can be consumed by importScripts, it won't work -- it seems like we can't use modules inside of web workers.

Take the following code:

// example_mod.js
var my_mod = require('build/Release/my_module');

and say we run browserify example_mod.js > example_import.js
If I then have the following:

var mod_work = new Threads.Worker(function() {
    function performWork() {
        importScripts('example_import.js');
        return my_mod.run();
    }

   this.onmessage = function(event) {
        postMessage(performWork());
   }
});

mod_work.postMessage();

Then the call to my_mod.run() hangs indefinitely without being called.

Am I misunderstanding how to use web workers, or can we really not use modules inside of thread workers even if we wrap their code in something that can be called by importScripts?

from node-webworker-threads.

for the love of all things holy can someone just create "require"
functionality in webworkers?
On Jun 5, 2016 8:18 AM, "唐鳳" [email protected] wrote:

Hmm, this looks legitimate and should work for pure-javascript modules. If
I set example_import.js to:

var my_mod = {run: function(){ return 123 }}

and change the postMessage(performWork()); line to:

   console.log(performWork());

Then I do find it printed out. However if build/Release/my_module is a
binary module (built by node-gyp or similar) then indeed, we have no way
of loading them currently.

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from node-webworker-threads.

Hi, currently as per Web Worker spec, only importScripts is supported.

To package node modules into .js files suitable for importScripts, perhaps give https://github.com/azer/onejs a try?

from node-webworker-threads.

@audreyt a small example or snippet would be appreciated.

from node-webworker-threads.

Hmm, this looks legitimate and should work for pure-javascript modules. If I set example_import.js to:

var my_mod = {run: function(){ return 123 }}

and change the postMessage(performWork()); line to:

       console.log(performWork());

Then I do find it printed out. However if build/Release/my_module is a binary module (built by node-gyp or similar) then indeed, we have no way of loading them currently.

from node-webworker-threads.

I dont have the expertise to do this but audrey you probably do or someone
around here does. it would be so frickin' useful to have require abilities
in webworkers.
On Jun 5, 2016 10:38 AM, [email protected] wrote:

for the love of all things holy can someone just create "require"
functionality in webworkers?
On Jun 5, 2016 8:18 AM, "唐鳳" [email protected] wrote:

Hmm, this looks legitimate and should work for pure-javascript modules.
If I set example_import.js to:

var my_mod = {run: function(){ return 123 }}

and change the postMessage(performWork()); line to:

   console.log(performWork());

Then I do find it printed out. However if build/Release/my_module is a
binary module (built by node-gyp or similar) then indeed, we have no way
of loading them currently.

—
You are receiving this because you are subscribed to this thread.
Reply to this email directly, view it on GitHub
#15 (comment),
or mute the thread
https://github.com/notifications/unsubscribe/ACDIYCPUsdYwvTosm10ercV98LrVNtorks5qIujHgaJpZM4Aqh3K
.

from node-webworker-threads.

@the1mills Please consider using https://www.npmjs.com/package/tiny-worker which does support require through child processes.

from node-webworker-threads.