worktank/dist/worker/frontend.js

A simple isomorphic library for executing functions inside WebWorkers or Node Threads pools.

/* IMPORT */
import WorkerShim from 'webworker-shim';
import WorkerBackend from './backend_compiled.js';
/* MAIN */
class WorkerFrontend {
    /* CONSTRUCTOR */
    constructor(name, bootloader, onClose, onError, onMessage) {
        /* API */
        this.listen = (onClose, onError, onMessage) => {
            this.worker.addEventListener('close', event => onClose(event['data']));
            this.worker.addEventListener('error', event => onError(event['data']));
            this.worker.addEventListener('message', event => onMessage(event['data']));
        };
        this.send = (message, transfer = []) => {
            this.worker.postMessage(message, transfer);
        };
        this.terminate = () => {
            this.worker.terminate();
        };
        const backend = WorkerBackend.replace('/*! BOOTLOADER_PLACEHOLDER !*/', bootloader);
        const script = `data:text/javascript;charset=utf-8,${encodeURIComponent(backend)}`;
        this.worker = new WorkerShim(script, { name, type: 'module' });
        this.listen(onClose, onError, onMessage);
    }
}
/* EXPORT */
export default WorkerFrontend;