49fdd23d58
* Move secureApi to shell
* Extract isTestnet test
* Use mobx + subscriptions for status
* Re-add status indicator
* Add lerna
* Move intial packages to js/packages
* Move 3rdparty/{email,sms}-verification to correct location
* Move package.json & README to library src
* Move tests for library packages
* Move views & dapps to packages
* Move i18n to root
* Move shell to actual src (main app)
* Remove ~ references
* Change ~ to root (explicit imports)
* Finalise convert of ~
* Move views into dapps as well
* Move dapps to packages/
* Fix references
* Update css
* Update test spec locations
* Update tests
* Case fix
* Skip flakey tests
* Update enzyme
* Skip previously ignored tests
* Allow empty api for hw
* Re-add theme for embed
106 lines
2.6 KiB
JavaScript
106 lines
2.6 KiB
JavaScript
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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// Allow a web worker in the browser, with a fallback for Node.js
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const hasWebWorkers = typeof Worker !== 'undefined';
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const KeyWorker = hasWebWorkers ? require('worker-loader!./worker')
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: require('./worker').KeyWorker;
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class WorkerContainer {
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busy = false;
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_worker = new KeyWorker();
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action (action, payload) {
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if (this.busy) {
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throw new Error('Cannot issue an action on a busy worker!');
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}
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this.busy = true;
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return new Promise((resolve, reject) => {
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this._worker.postMessage({ action, payload });
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this._worker.onmessage = ({ data }) => {
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const [err, result] = data;
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this.busy = false;
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if (err) {
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// `err` ought to be a String
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reject(new Error(err));
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} else {
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resolve(result);
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}
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};
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});
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}
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}
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class WorkerPool {
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pool = [
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new WorkerContainer(),
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new WorkerContainer()
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];
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queue = [];
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_getContainer () {
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return this.pool.find((container) => !container.busy);
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}
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action (action, payload) {
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let container = this.pool.find((container) => !container.busy);
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let promise;
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// const start = Date.now();
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if (container) {
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promise = container.action(action, payload);
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} else {
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promise = new Promise((resolve, reject) => {
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this.queue.push([action, payload, resolve]);
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});
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}
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return promise
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.catch((err) => {
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this.processQueue();
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throw err;
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})
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.then((result) => {
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this.processQueue();
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// console.log('Work done in ', Date.now() - start);
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return result;
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});
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}
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processQueue () {
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let container = this._getContainer();
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while (container && this.queue.length > 0) {
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const [action, payload, resolve] = this.queue.shift();
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resolve(container.action(action, payload));
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container = this._getContainer();
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}
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}
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}
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export default new WorkerPool();
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