Multithreading Redux Actions about synectic HOT 3 CLOSED

Attempts to unload some of the CPU intensive calls (i.e. fetchRepo, fetchBranches, updateVersionedMetafile) to background threads inevitably result in a catch-22 situation. For example, in order to use Web Workers in a Node.js environment using webpack, you must use ESM per webpack docs:

Similar syntax is supported in Node.js (>= 12.17.0):

import { Worker } from 'worker_threads';

new Worker(new URL('./worker.js', import.meta.url));

Note that this is only available in ESM. Worker in CommonJS syntax is not supported by either webpack or Node.js.

But attempts to run this code in Electron result in the following:

This is because Electron currently only supports CommonJS modules. However, there are some potential future fixes that might introduce ESM support in Electron in the future:

• electron/electron#21457
• electron/electron#37535

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Other multi-threading options include:

• Attempting to use Electron's utilityProcess to create child processes with Node.js and Message ports enabled. It provides the equivalent of child_process.fork API from Node.js but instead uses Services API from Chromium to launch the child process. Although, this option requires resolving some of the restrictions placed on these processes under the Electron Context Isolation feature.

• Using electron-redux@alpha which provides a Redux Store Enhancer that helps loosely synchronize the redux stores in multiple Electron processes. The use case for this module is described as:

  When working with Electron, using Redux poses couple of problems, since main and renderer processes are isolated and IPC is a single way of communication between them. This library, enables you to register all your Redux stores in the main & renderer process, and enable cross-process action dispatching & loose store synchronization.

  However, the v2 alpha branch throws errors when attempting to launch Synectic and only the older v1 is able to startup. But the v1 version has a major sticking point, which is outlined in their The road to electron-redux 2.0 issue, and that is that v1 still uses Electron's remote dependency. The remote module was deprecated in Electron 14.0, which was released on 2021-Aug-31 and reached EOL on 2022-Mar-29; which is a significantly older version given that the current version is 25.0.0 as of 2023-May-30.

• There is redux-state-sync which is a lightweight Redux Middleware for syncing your redux state across browser tabs. It uses the Electron Broadcast Channel API to listen and dispatch exactly the same actions that were dispatched in other tabs to keep the redux state in sync. Unfortunately, this library requires modifying the Redux-Toolkit built-in reducers provided by createEntityAdapter as a workaround described in aohua/redux-state-sync#124.

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Resolved in Synectic v4.0.0.

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