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