+
+export const createWorker = <Worker extends IWorker>(
+ type: WorkerType,
+ filePath: string,
+ opts: { env?: Record<string, unknown>, workerOptions?: WorkerOptions }
+): Worker => {
+ switch (type) {
+ case WorkerTypes.thread:
+ return new Worker(filePath, {
+ env: SHARE_ENV,
+ ...opts?.workerOptions
+ }) as unknown as Worker
+ case WorkerTypes.cluster:
+ return cluster.fork(opts?.env) as unknown as Worker
+ default:
+ // eslint-disable-next-line @typescript-eslint/restrict-template-expressions
+ throw new Error(`Unknown worker type '${type}'`)
+ }
+}
+
+export const waitWorkerNodeEvents = async <
+ Worker extends IWorker,
+ Data = unknown
+>(
+ workerNode: IWorkerNode<Worker, Data>,
+ workerNodeEvent: string,
+ numberOfEventsToWait: number
+): Promise<number> => {
+ return await new Promise<number>(resolve => {
+ let events = 0
+ if (numberOfEventsToWait === 0) {
+ resolve(events)
+ return
+ }
+ workerNode.on(workerNodeEvent, () => {
+ ++events
+ if (events === numberOfEventsToWait) {
+ resolve(events)
+ }
+ })
+ })
+}