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authorFlorian Dold <florian.dold@gmail.com>2020-08-03 13:00:48 +0530
committerFlorian Dold <florian.dold@gmail.com>2020-08-03 13:01:05 +0530
commitffd2a62c3f7df94365980302fef3bc3376b48182 (patch)
tree270af6f16b4cc7f5da2afdba55c8bc9dbea5eca5 /packages/taler-wallet-webextension/src/browserCryptoWorkerFactory.ts
parentaa481e42675fb7c4dcbbeec0ba1c61e1953b9596 (diff)
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modularize repo, use pnpm, improve typechecking
Diffstat (limited to 'packages/taler-wallet-webextension/src/browserCryptoWorkerFactory.ts')
-rw-r--r--packages/taler-wallet-webextension/src/browserCryptoWorkerFactory.ts43
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diff --git a/packages/taler-wallet-webextension/src/browserCryptoWorkerFactory.ts b/packages/taler-wallet-webextension/src/browserCryptoWorkerFactory.ts
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+/*
+ This file is part of TALER
+ (C) 2016 GNUnet e.V.
+
+ TALER is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
+ */
+
+/**
+ * API to access the Taler crypto worker thread.
+ * @author Florian Dold
+ */
+
+import type { CryptoWorker, CryptoWorkerFactory } from "taler-wallet-core";
+
+export class BrowserCryptoWorkerFactory implements CryptoWorkerFactory {
+ startWorker(): CryptoWorker {
+ const workerCtor = Worker;
+ const workerPath = "/browserWorkerEntry.js";
+ return new workerCtor(workerPath) as CryptoWorker;
+ }
+
+ getConcurrency(): number {
+ let concurrency = 2;
+ try {
+ // only works in the browser
+ // tslint:disable-next-line:no-string-literal
+ concurrency = (navigator as any)["hardwareConcurrency"];
+ concurrency = Math.max(1, Math.ceil(concurrency / 2));
+ } catch (e) {
+ concurrency = 2;
+ }
+ return concurrency;
+ }
+}