X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Futils.ts;h=88562ca3531f9acbb446414075366a4b50ba1ce4;hb=c3024c5998f1aa6c228c5db083e160b6fd967d7c;hp=d7ce5a210f2dea09290fd90a5f4eb64fcb2162d5;hpb=8bb271861d8632c109fb0293f2a6f43bd5e3bea6;p=poolifier.git

diff --git a/src/utils.ts b/src/utils.ts
index d7ce5a21..88562ca3 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,13 +1,7 @@
+import { getRandomValues } from 'node:crypto'
 import * as os from 'node:os'
-import { webcrypto } from 'node:crypto'
-import { Worker as ClusterWorker } from 'node:cluster'
-import { Worker as ThreadWorker } from 'node:worker_threads'
-import type {
-  MeasurementStatisticsRequirements,
-  WorkerChoiceStrategyOptions
-} from './pools/selection-strategies/selection-strategies-types'
-import type { KillBehavior } from './worker/worker-options'
-import { type IWorker, type WorkerType, WorkerTypes } from './pools/worker'
+
+import type { KillBehavior } from './worker/worker-options.js'
 
 /**
  * Default task name.
@@ -21,27 +15,6 @@ export const EMPTY_FUNCTION: () => void = Object.freeze(() => {
   /* Intentionally empty */
 })
 
-/**
- * Default worker choice strategy options.
- */
-export const DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS: WorkerChoiceStrategyOptions =
-  {
-    retries: 6,
-    runTime: { median: false },
-    waitTime: { median: false },
-    elu: { median: false }
-  }
-
-/**
- * Default measurement statistics requirements.
- */
-export const DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS: MeasurementStatisticsRequirements =
-  {
-    aggregate: false,
-    average: false,
-    median: false
-  }
-
 /**
  * Returns safe host OS optimized estimate of the default amount of parallelism a pool should use.
  * Always returns a value greater than zero.
@@ -61,36 +34,6 @@ export const availableParallelism = (): number => {
   return availableParallelism
 }
 
-/**
- * Returns the worker type of the given worker.
- *
- * @param worker - The worker to get the type of.
- * @returns The worker type of the given worker.
- * @internal
- */
-export const getWorkerType = (worker: IWorker): WorkerType | undefined => {
-  if (worker instanceof ThreadWorker) {
-    return WorkerTypes.thread
-  } else if (worker instanceof ClusterWorker) {
-    return WorkerTypes.cluster
-  }
-}
-
-/**
- * Returns the worker id of the given worker.
- *
- * @param worker - The worker to get the id of.
- * @returns The worker id of the given worker.
- * @internal
- */
-export const getWorkerId = (worker: IWorker): number | undefined => {
-  if (worker instanceof ThreadWorker) {
-    return worker.threadId
-  } else if (worker instanceof ClusterWorker) {
-    return worker.id
-  }
-}
-
 /**
  * Sleeps for the given amount of milliseconds.
  *
@@ -131,8 +74,7 @@ export const exponentialDelay = (
 export const average = (dataSet: number[]): number => {
   if (Array.isArray(dataSet) && dataSet.length === 0) {
     return 0
-  }
-  if (Array.isArray(dataSet) && dataSet.length === 1) {
+  } else if (Array.isArray(dataSet) && dataSet.length === 1) {
     return dataSet[0]
   }
   return (
@@ -151,8 +93,7 @@ export const average = (dataSet: number[]): number => {
 export const median = (dataSet: number[]): number => {
   if (Array.isArray(dataSet) && dataSet.length === 0) {
     return 0
-  }
-  if (Array.isArray(dataSet) && dataSet.length === 1) {
+  } else if (Array.isArray(dataSet) && dataSet.length === 1) {
     return dataSet[0]
   }
   const sortedDataSet = dataSet.slice().sort((a, b) => a - b)
@@ -178,24 +119,24 @@ export const round = (num: number, scale = 2): number => {
 }
 
 /**
- * Is the given object a plain object?
+ * Is the given value a plain object?
  *
- * @param obj - The object to check.
- * @returns `true` if the given object is a plain object, `false` otherwise.
+ * @param value - The value to check.
+ * @returns `true` if the given value is a plain object, `false` otherwise.
  * @internal
  */
-export const isPlainObject = (obj: unknown): boolean =>
-  typeof obj === 'object' &&
-  obj !== null &&
-  obj?.constructor === Object &&
-  Object.prototype.toString.call(obj) === '[object Object]'
+export const isPlainObject = (value: unknown): value is object =>
+  typeof value === 'object' &&
+  value !== null &&
+  value.constructor === Object &&
+  Object.prototype.toString.call(value) === '[object Object]'
 
 /**
  * Detects whether the given value is a kill behavior or not.
  *
  * @typeParam KB - Which specific KillBehavior type to test against.
  * @param killBehavior - Which kind of kill behavior to detect.
- * @param value - Any value.
+ * @param value - Unknown value.
  * @returns `true` if `value` was strictly equals to `killBehavior`, otherwise `false`.
  * @internal
  */
@@ -209,7 +150,7 @@ export const isKillBehavior = <KB extends KillBehavior>(
 /**
  * Detects whether the given value is an asynchronous function or not.
  *
- * @param fn - Any value.
+ * @param fn - Unknown value.
  * @returns `true` if `fn` was an asynchronous function, otherwise `false`.
  * @internal
  */
@@ -226,7 +167,7 @@ export const isAsyncFunction = (
  * @internal
  */
 export const secureRandom = (): number => {
-  return webcrypto.getRandomValues(new Uint32Array(1))[0] / 0x100000000
+  return getRandomValues(new Uint32Array(1))[0] / 0x100000000
 }
 
 /**
@@ -250,3 +191,28 @@ export const min = (...args: number[]): number =>
  */
 export const max = (...args: number[]): number =>
   args.reduce((maximum, num) => (maximum > num ? maximum : num), -Infinity)
+
+/**
+ * Wraps a function so that it can only be called once.
+ *
+ * @param fn - The function to wrap.
+ * @param context - The context to bind the function to.
+ * @returns The wrapped function.
+ * @internal
+ */
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+export const once = <A extends any[], R, T>(
+  fn: (...args: A) => R,
+  context: T
+): ((...args: A) => R) => {
+  let result: R
+  return (...args: A) => {
+    // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
+    if (fn != null) {
+      result = fn.apply<T, A, R>(context, args)
+      ;(fn as unknown as undefined) = (context as unknown as undefined) =
+        undefined
+    }
+    return result
+  }
+}