src/charging-station/ChargingStationWorker.ts

   1 // Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved.
   2
   3 import { parentPort, workerData } from 'node:worker_threads';
   4
   5 import { ThreadWorker } from 'poolifier';
   6
   7 import { ChargingStation } from './ChargingStation';
   8 import type { ChargingStationWorkerData } from '../types';
   9 import { Configuration } from '../utils';
  10 import { WorkerConstants, type WorkerMessage, WorkerMessageEvents } from '../worker';
  11
  12 /**
  13  * Create and start a charging station instance
  14  *
  15  * @param data - workerData
  16  */
  17 const startChargingStation = (data: ChargingStationWorkerData): void => {
  18   const station = new ChargingStation(data.index, data.templateFile);
  19   station.start();
  20 };
  21
  22 /**
  23  * Listen messages send by the main thread
  24  */
  25 const addMessageListener = (): void => {
  26   parentPort?.on('message', (message: WorkerMessage<ChargingStationWorkerData>) => {
  27     if (message.id === WorkerMessageEvents.startWorkerElement) {
  28       startChargingStation(message.data);
  29     }
  30   });
  31 };
  32
  33 // Conditionally export ThreadWorker instance for pool usage
  34 export let threadWorker: ThreadWorker;
  35 if (Configuration.workerPoolInUse()) {
  36   threadWorker = new ThreadWorker<ChargingStationWorkerData>(startChargingStation, {
  37     maxInactiveTime: WorkerConstants.POOL_MAX_INACTIVE_TIME,
  38   });
  39 } else {
  40   // Add message listener to start charging station from main thread
  41   addMessageListener();
  42   if (workerData !== undefined) {
  43     startChargingStation(workerData as ChargingStationWorkerData);
  44   }
  45 }