- opts = opts ?? DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
- this.setTaskStatisticsRequirements(opts)
- this.opts = opts
- }
-
- // /**
- // * Finds a free worker node key.
- // *
- // * @returns The free worker node key or `-1` if there is no free worker node.
- // */
- // protected findFreeWorkerNodeKey (): number {
- // if (this.toggleFindLastFreeWorkerNodeKey) {
- // this.toggleFindLastFreeWorkerNodeKey = false
- // return this.findLastFreeWorkerNodeKey()
- // }
- // this.toggleFindLastFreeWorkerNodeKey = true
- // return this.findFirstFreeWorkerNodeKey()
- // }
+ this.opts = { ...DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS, ...opts }
+ this.setTaskStatisticsRequirements(this.opts)
+ }
+
+ /**
+ * Whether the worker node is ready or not.
+ *
+ * @param workerNodeKey - The worker node key.
+ * @returns Whether the worker node is ready or not.
+ */
+ private isWorkerNodeReady (workerNodeKey: number): boolean {
+ return this.pool.workerNodes[workerNodeKey].info.ready
+ }
+
+ /**
+ * Whether the worker node has back pressure or not (i.e. its tasks queue is full).
+ *
+ * @param workerNodeKey - The worker node key.
+ * @returns `true` if the worker node has back pressure, `false` otherwise.
+ */
+ private hasWorkerNodeBackPressure (workerNodeKey: number): boolean {
+ return this.pool.hasWorkerNodeBackPressure(workerNodeKey)
+ }
+
+ /**
+ * Whether the worker node is eligible or not.
+ * A worker node is eligible if it is ready and does not have back pressure.
+ *
+ * @param workerNodeKey - The worker node key.
+ * @returns `true` if the worker node is eligible, `false` otherwise.
+ * @see {@link isWorkerNodeReady}
+ * @see {@link hasWorkerNodeBackPressure}
+ */
+ protected isWorkerNodeEligible (workerNodeKey: number): boolean {
+ return (
+ this.isWorkerNodeReady(workerNodeKey) &&
+ !this.hasWorkerNodeBackPressure(workerNodeKey)
+ )
+ }