X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Futils.ts;h=45e4fd2393d0533a5256754eec9075666a7f7ea1;hb=daf86646c7cdb484ec05165a49c12224da11a4c7;hp=1b657bce22acaf49a39552f411f1bc4899834777;hpb=5931725336d0de8a06146641ae6feef22bf60e6e;p=poolifier.git

diff --git a/src/utils.ts b/src/utils.ts
index 1b657bce..45e4fd23 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,9 +1,15 @@
-import os 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.
@@ -43,9 +49,9 @@ export const availableParallelism = (): number => {
   try {
     availableParallelism = os.availableParallelism()
   } catch {
-    const cpus = os.cpus()
-    if (Array.isArray(cpus) && cpus.length > 0) {
-      availableParallelism = cpus.length
+    const numberOfCpus = os.cpus()
+    if (Array.isArray(numberOfCpus) && numberOfCpus.length > 0) {
+      availableParallelism = numberOfCpus.length
     }
   }
   return availableParallelism
@@ -111,3 +117,51 @@ export const isKillBehavior = <KB extends KillBehavior>(
 ): value is KB => {
   return value === killBehavior
 }
+
+/**
+ * Detects whether the given value is an asynchronous function or not.
+ *
+ * @param fn - Any value.
+ * @returns `true` if `fn` was an asynchronous function, otherwise `false`.
+ */
+export const isAsyncFunction = (
+  fn: unknown
+): 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)
+    }
+  }
+}