+ private async startOnEmptyQueue (): Promise<void> {
+ if (
+ this.onEmptyQueueCount > 0 &&
+ (this.usage.tasks.executing > 0 || this.tasksQueue.size > 0)
+ ) {
+ this.onEmptyQueueCount = 0
+ return
+ }
+ (this.onEmptyQueue as WorkerNodeEventCallback)(this.info.id as number)
+ ++this.onEmptyQueueCount
+ await sleep(exponentialDelay(this.onEmptyQueueCount))
+ await this.startOnEmptyQueue()
+ }
+
+ private initWorkerInfo (worker: Worker): WorkerInfo {