parallel-es/src/node/worker/child-process-worker-thread-slave-communication-channel.ts

Simple parallelization for EcmaScript

import {IWorkerThreadSlaveCommunicationChannel} from "../../common/worker/worker-thread-slave-communication-channel";
import {ChildProcess} from "child_process";
import {IWorkerMessage, isStopMesssage} from "../../common/worker/worker-messages";

export class ChildProcessWorkerThreadSlaveCommunicationChannel implements IWorkerThreadSlaveCommunicationChannel {
    constructor(private child: ChildProcess) {
    }

    public sendMessage(message: IWorkerMessage): void {
        if (isStopMesssage(message)) {
            this.child.kill();
        } else {
            this.child.send(message);
        }
    }

    public addEventListener(type: "error", listener: (ev: any) => any): void;
    public addEventListener(type: "message", listener: (ev: IWorkerMessage) => any): void;
    public addEventListener(type: "error" | "message", listener: Function): void {
        this.child.addListener(type, listener);
    }
}