diff options
Diffstat (limited to 'src/crypto/workers/nodeThreadWorker.ts')
-rw-r--r-- | src/crypto/workers/nodeThreadWorker.ts | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/src/crypto/workers/nodeThreadWorker.ts b/src/crypto/workers/nodeThreadWorker.ts deleted file mode 100644 index 6c9dfc569..000000000 --- a/src/crypto/workers/nodeThreadWorker.ts +++ /dev/null @@ -1,183 +0,0 @@ -/* - 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/> - */ - -/** - * Imports - */ -import { CryptoWorkerFactory } from "./cryptoApi"; -import { CryptoWorker } from "./cryptoWorker"; -import os from "os"; -import { CryptoImplementation } from "./cryptoImplementation"; - -const f = __filename; - -const workerCode = ` - // Try loading the glue library for Android - try { - require("akono"); - } catch (e) { - // Probably we're not on Android ... - } - const worker_threads = require('worker_threads'); - const parentPort = worker_threads.parentPort; - let tw; - try { - tw = require("${f}"); - } catch (e) { - console.log("could not load from ${f}"); - } - if (!tw) { - try { - tw = require("taler-wallet-android"); - } catch (e) { - console.log("could not load taler-wallet-android either"); - throw e; - } - } - parentPort.on("message", tw.handleWorkerMessage); - parentPort.on("error", tw.handleWorkerError); -`; - -/** - * This function is executed in the worker thread to handle - * a message. - */ -export function handleWorkerMessage(msg: any): void { - const args = msg.args; - if (!Array.isArray(args)) { - console.error("args must be array"); - return; - } - const id = msg.id; - if (typeof id !== "number") { - console.error("RPC id must be number"); - return; - } - const operation = msg.operation; - if (typeof operation !== "string") { - console.error("RPC operation must be string"); - return; - } - - const handleRequest = async (): Promise<void> => { - const impl = new CryptoImplementation(); - - if (!(operation in impl)) { - console.error(`crypto operation '${operation}' not found`); - return; - } - - try { - const result = (impl as any)[operation](...args); - // eslint-disable-next-line @typescript-eslint/no-var-requires - const worker_threads = require("worker_threads"); - const p = worker_threads.parentPort; - worker_threads.parentPort?.postMessage; - if (p) { - p.postMessage({ data: { result, id } }); - } else { - console.error("parent port not available (not running in thread?"); - } - } catch (e) { - console.error("error during operation", e); - return; - } - }; - - handleRequest().catch((e) => { - console.error("error in node worker", e); - }); -} - -export function handleWorkerError(e: Error): void { - console.log("got error from worker", e); -} - -export class NodeThreadCryptoWorkerFactory implements CryptoWorkerFactory { - startWorker(): CryptoWorker { - if (typeof require === "undefined") { - throw Error("cannot make worker, require(...) not defined"); - } - return new NodeThreadCryptoWorker(); - } - - getConcurrency(): number { - return Math.max(1, os.cpus().length - 1); - } -} - -/** - * Worker implementation that uses node subprocesses. - */ -class NodeThreadCryptoWorker implements CryptoWorker { - /** - * Function to be called when we receive a message from the worker thread. - */ - onmessage: undefined | ((m: any) => void); - - /** - * Function to be called when we receive an error from the worker thread. - */ - onerror: undefined | ((m: any) => void); - - private nodeWorker: import("worker_threads").Worker; - - constructor() { - // eslint-disable-next-line @typescript-eslint/no-var-requires - const worker_threads = require("worker_threads"); - this.nodeWorker = new worker_threads.Worker(workerCode, { eval: true }); - this.nodeWorker.on("error", (err: Error) => { - console.error("error in node worker:", err); - if (this.onerror) { - this.onerror(err); - } - }); - this.nodeWorker.on("message", (v: any) => { - if (this.onmessage) { - this.onmessage(v); - } - }); - this.nodeWorker.unref(); - } - - /** - * Add an event listener for either an "error" or "message" event. - */ - addEventListener(event: "message" | "error", fn: (x: any) => void): void { - switch (event) { - case "message": - this.onmessage = fn; - break; - case "error": - this.onerror = fn; - break; - } - } - - /** - * Send a message to the worker thread. - */ - postMessage(msg: any): void { - this.nodeWorker.postMessage(msg); - } - - /** - * Forcibly terminate the worker thread. - */ - terminate(): void { - this.nodeWorker.terminate(); - } -} |