47 lines
1.4 KiB
TypeScript
47 lines
1.4 KiB
TypeScript
/*
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This file is part of TALER
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(C) 2016 GNUnet e.V.
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* API to access the Taler crypto worker thread.
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* @author Florian Dold
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*/
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import type {
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CryptoWorker,
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CryptoWorkerFactory,
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} from "@gnu-taler/taler-wallet-core";
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export class BrowserCryptoWorkerFactory implements CryptoWorkerFactory {
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startWorker(): CryptoWorker {
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const workerCtor = Worker;
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const workerPath = "/dist/browserWorkerEntry.js";
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return new workerCtor(workerPath) as CryptoWorker;
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}
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getConcurrency(): number {
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let concurrency = 2;
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try {
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// only works in the browser
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// tslint:disable-next-line:no-string-literal
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concurrency = (navigator as any)["hardwareConcurrency"];
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concurrency = Math.max(1, Math.ceil(concurrency / 2));
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} catch (e) {
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concurrency = 2;
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}
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return concurrency;
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}
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}
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