import type { IPoolWorker } from '../pool-worker'
import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
-import type { RequiredStatistics } from './selection-strategies-types'
+import type {
+ IWorkerChoiceStrategy,
+ RequiredStatistics
+} from './selection-strategies-types'
/**
* Worker virtual task timestamp.
* @typeParam Response - Type of response of execution. This can only be serializable data.
*/
export class FairShareWorkerChoiceStrategy<
- Worker extends IPoolWorker,
- Data,
- Response
-> extends AbstractWorkerChoiceStrategy<Worker, Data, Response> {
+ Worker extends IPoolWorker,
+ Data,
+ Response
+ >
+ extends AbstractWorkerChoiceStrategy<Worker, Data, Response>
+ implements IWorkerChoiceStrategy {
/** {@inheritDoc} */
public readonly requiredStatistics: RequiredStatistics = {
runTime: true
* Worker last virtual task execution timestamp.
*/
private readonly workerLastVirtualTaskTimestamp: Map<
- Worker,
+ number,
WorkerVirtualTaskTimestamp
- > = new Map<Worker, WorkerVirtualTaskTimestamp>()
+ > = new Map<number, WorkerVirtualTaskTimestamp>()
/** {@inheritDoc} */
public reset (): boolean {
}
/** {@inheritDoc} */
- public choose (): Worker {
+ public choose (): number {
let minWorkerVirtualTaskEndTimestamp = Infinity
- let chosenWorker!: Worker
- for (const value of this.pool.workers.values()) {
- const worker = value.worker
- this.computeWorkerLastVirtualTaskTimestamp(worker)
+ let chosenWorkerKey!: number
+ for (const [index] of this.pool.workers.entries()) {
+ this.computeWorkerLastVirtualTaskTimestamp(index)
const workerLastVirtualTaskEndTimestamp =
- this.workerLastVirtualTaskTimestamp.get(worker)?.end ?? 0
+ this.workerLastVirtualTaskTimestamp.get(index)?.end ?? 0
if (
workerLastVirtualTaskEndTimestamp < minWorkerVirtualTaskEndTimestamp
) {
minWorkerVirtualTaskEndTimestamp = workerLastVirtualTaskEndTimestamp
- chosenWorker = worker
+ chosenWorkerKey = index
}
}
- return chosenWorker
+ return chosenWorkerKey
+ }
+
+ /** {@inheritDoc} */
+ public remove (workerKey: number): boolean {
+ const workerDeleted = this.workerLastVirtualTaskTimestamp.delete(workerKey)
+ for (const [key, value] of this.workerLastVirtualTaskTimestamp.entries()) {
+ if (key > workerKey) {
+ this.workerLastVirtualTaskTimestamp.set(key - 1, value)
+ }
+ }
+ return workerDeleted
}
/**
* Computes worker last virtual task timestamp.
*
- * @param worker - The worker.
+ * @param workerKey - The worker key.
*/
- private computeWorkerLastVirtualTaskTimestamp (worker: Worker): void {
+ private computeWorkerLastVirtualTaskTimestamp (workerKey: number): void {
const workerVirtualTaskStartTimestamp = Math.max(
Date.now(),
- this.workerLastVirtualTaskTimestamp.get(worker)?.end ?? -Infinity
+ this.workerLastVirtualTaskTimestamp.get(workerKey)?.end ?? -Infinity
)
- this.workerLastVirtualTaskTimestamp.set(worker, {
+ this.workerLastVirtualTaskTimestamp.set(workerKey, {
start: workerVirtualTaskStartTimestamp,
end:
workerVirtualTaskStartTimestamp +
- (this.pool.getWorkerTasksUsage(worker)?.avgRunTime ?? 0)
+ (this.pool.workers[workerKey].tasksUsage.avgRunTime ?? 0)
})
}
}