diff options
Diffstat (limited to 'src/crypto/nodeWorker.ts')
-rw-r--r-- | src/crypto/nodeWorker.ts | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/crypto/nodeWorker.ts b/src/crypto/nodeWorker.ts new file mode 100644 index 000000000..afa2930a8 --- /dev/null +++ b/src/crypto/nodeWorker.ts @@ -0,0 +1,73 @@ +/* + 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"); + } +} |