-import { cpus, availableParallelism as parallelism } from 'node:os'
+import * as os from 'node:os'
import type {
MeasurementStatisticsRequirements,
WorkerChoiceStrategyOptions
} from './pools/selection-strategies/selection-strategies-types'
import type { KillBehavior } from './worker/worker-options'
+import type { MeasurementStatistics } from './pools/worker'
+
+/**
+ * Default task name.
+ */
+export const DEFAULT_TASK_NAME = 'default'
/**
* An intentional empty function.
export const availableParallelism = (): number => {
let availableParallelism = 1
try {
- availableParallelism = parallelism()
+ availableParallelism = os.availableParallelism()
} catch {
- const numberOfCpus = cpus()
+ const numberOfCpus = os.cpus()
if (Array.isArray(numberOfCpus) && numberOfCpus.length > 0) {
availableParallelism = numberOfCpus.length
}
): fn is (...args: unknown[]) => Promise<unknown> => {
return typeof fn === 'function' && fn.constructor.name === 'AsyncFunction'
}
+
+/**
+ * Updates the given measurement statistics.
+ *
+ * @param measurementStatistics - The measurement statistics to update.
+ * @param measurementRequirements - The measurement statistics requirements.
+ * @param measurementValue - The measurement value.
+ * @param numberOfMeasurements - The number of measurements.
+ */
+export const updateMeasurementStatistics = (
+ measurementStatistics: MeasurementStatistics,
+ measurementRequirements: MeasurementStatisticsRequirements,
+ measurementValue: number,
+ numberOfMeasurements: number
+): void => {
+ if (measurementRequirements.aggregate) {
+ measurementStatistics.aggregate =
+ (measurementStatistics.aggregate ?? 0) + measurementValue
+ measurementStatistics.minimum = Math.min(
+ measurementValue,
+ measurementStatistics.minimum ?? Infinity
+ )
+ measurementStatistics.maximum = Math.max(
+ measurementValue,
+ measurementStatistics.maximum ?? -Infinity
+ )
+ if (measurementRequirements.average && numberOfMeasurements !== 0) {
+ measurementStatistics.average =
+ measurementStatistics.aggregate / numberOfMeasurements
+ }
+ if (measurementRequirements.median && measurementValue != null) {
+ measurementStatistics.history.push(measurementValue)
+ measurementStatistics.median = median(measurementStatistics.history)
+ }
+ }
+}