+ const workerNodeKey = this.addWorkerNode(worker)
+
+ this.afterWorkerNodeSetup(workerNodeKey)
+
+ return workerNodeKey
+ }
+
+ /**
+ * Creates a new, completely set up dynamic worker node.
+ *
+ * @returns New, completely set up dynamic worker node key.
+ */
+ protected createAndSetupDynamicWorkerNode (): number {
+ const workerNodeKey = this.createAndSetupWorkerNode()
+ this.registerWorkerMessageListener(workerNodeKey, message => {
+ const localWorkerNodeKey = this.getWorkerNodeKeyByWorkerId(
+ message.workerId
+ )
+ const workerUsage = this.workerNodes[localWorkerNodeKey].usage
+ // Kill message received from worker
+ if (
+ isKillBehavior(KillBehaviors.HARD, message.kill) ||
+ (message.kill != null &&
+ ((this.opts.enableTasksQueue === false &&
+ workerUsage.tasks.executing === 0) ||
+ (this.opts.enableTasksQueue === true &&
+ workerUsage.tasks.executing === 0 &&
+ this.tasksQueueSize(localWorkerNodeKey) === 0)))
+ ) {
+ this.destroyWorkerNode(localWorkerNodeKey).catch(EMPTY_FUNCTION)
+ }
+ })
+ const workerInfo = this.getWorkerInfo(workerNodeKey)
+ this.sendToWorker(workerNodeKey, {
+ checkActive: true,
+ workerId: workerInfo.id as number
+ })
+ workerInfo.dynamic = true
+ if (this.workerChoiceStrategyContext.getStrategyPolicy().useDynamicWorker) {
+ workerInfo.ready = true
+ }
+ return workerNodeKey
+ }
+
+ /**
+ * Registers a listener callback on the worker given its worker node key.
+ *
+ * @param workerNodeKey - The worker node key.
+ * @param listener - The message listener callback.
+ */
+ protected abstract registerWorkerMessageListener<
+ Message extends Data | Response
+ >(
+ workerNodeKey: number,
+ listener: (message: MessageValue<Message>) => void
+ ): void