+ protected async destroyWorkerNode (workerNodeKey: number): Promise<void> {
+ this.flagWorkerNodeAsNotReady(workerNodeKey)
+ this.flushTasksQueue(workerNodeKey)
+ // FIXME: wait for tasks to be finished
+ const workerNode = this.workerNodes[workerNodeKey]
+ const worker = workerNode.worker
+ const waitWorkerExit = new Promise<void>(resolve => {
+ worker.once('exit', () => {
+ resolve()
+ })
+ })
+ worker.once('disconnect', () => {
+ worker.kill()
+ })
+ await this.sendKillMessageToWorker(workerNodeKey)
+ worker.disconnect()
+ await waitWorkerExit
+ }
+
+ /** @inheritDoc */
+ protected sendToWorker (
+ workerNodeKey: number,
+ message: MessageValue<Data>
+ ): void {
+ this.workerNodes[workerNodeKey].worker.send({
+ ...message,
+ workerId: this.getWorkerInfo(workerNodeKey).id as number
+ })
+ }
+
+ /** @inheritDoc */
+ protected sendStartupMessageToWorker (workerNodeKey: number): void {
+ this.sendToWorker(workerNodeKey, {
+ ready: false
+ })
+ }
+
+ /** @inheritDoc */
+ protected registerWorkerMessageListener<Message extends Data | Response>(
+ workerNodeKey: number,
+ listener: (message: MessageValue<Message>) => void
+ ): void {
+ this.workerNodes[workerNodeKey].worker.on('message', listener)