74 lines
1.9 KiB
TypeScript
74 lines
1.9 KiB
TypeScript
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/*
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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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const path = require("path");
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const fork = require("child_process").fork;
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const nodeWorkerEntry = path.join(__dirname, "nodeWorkerEntry.js");
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export class Worker {
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child: any;
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onmessage: undefined | ((m: any) => void);
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onerror: undefined | ((m: any) => void);
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constructor(scriptFilename: string) {
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this.child = fork(nodeWorkerEntry);
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this.onerror = undefined;
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this.onmessage = undefined;
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this.child.on("error", (e: any) => {
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if (this.onerror) {
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this.onerror(e);
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}
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});
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this.child.on("message", (msg: any) => {
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const message = JSON.parse(msg);
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if (!message.error && this.onmessage) {
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this.onmessage(message);
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}
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if (message.error && this.onerror) {
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const error = new Error(message.error);
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error.stack = message.stack;
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this.onerror(error);
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}
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});
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this.child.send({scriptFilename,cwd: process.cwd()});
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}
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addEventListener(event: "message" | "error", fn: (x: any) => void): void {
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switch (event) {
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case "message":
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this.onmessage = fn;
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break;
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case "error":
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this.onerror = fn;
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break;
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}
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}
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postMessage (msg: any) {
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this.child.send(JSON.stringify({data: msg}));
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}
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terminate () {
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this.child.kill("SIGINT");
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}
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}
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