X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fworker.ts;h=09253242f7d0af88204ba9989fb37a7fa12cc287;hb=7884d1837ee55026fe5204a56f4ebeca17e7e7dd;hp=1e23ee872aa0b9f1a5ae97d48c2a8c87b06e6567;hpb=50e66724ecb17b83dfb87b1128ca9674f9b14e03;p=poolifier.git

diff --git a/src/pools/worker.ts b/src/pools/worker.ts
index 1e23ee87..09253242 100644
--- a/src/pools/worker.ts
+++ b/src/pools/worker.ts
@@ -1,11 +1,13 @@
+import type { MessageChannel } from 'node:worker_threads'
 import type { CircularArray } from '../circular-array'
+import type { Task } from '../utility-types'
 
 /**
  * Callback invoked if the worker has received a message.
  */
 export type MessageHandler<Worker extends IWorker> = (
   this: Worker,
-  m: unknown
+  message: unknown
 ) => void
 
 /**
@@ -13,7 +15,7 @@ export type MessageHandler<Worker extends IWorker> = (
  */
 export type ErrorHandler<Worker extends IWorker> = (
   this: Worker,
-  e: Error
+  error: Error
 ) => void
 
 /**
@@ -26,28 +28,143 @@ export type OnlineHandler<Worker extends IWorker> = (this: Worker) => void
  */
 export type ExitHandler<Worker extends IWorker> = (
   this: Worker,
-  code: number
+  exitCode: number
 ) => void
 
 /**
- * Worker task interface.
+ * Measurement statistics.
+ *
+ * @internal
  */
-export interface Task<Data = unknown> {
-  data: Data
-  id: string
+export interface MeasurementStatistics {
+  /**
+   * Measurement aggregate.
+   */
+  aggregate?: number
+  /**
+   * Measurement minimum.
+   */
+  minimum?: number
+  /**
+   * Measurement maximum.
+   */
+  maximum?: number
+  /**
+   * Measurement average.
+   */
+  average?: number
+  /**
+   * Measurement median.
+   */
+  median?: number
+  /**
+   * Measurement history.
+   */
+  readonly history: CircularArray<number>
 }
 
 /**
- * Worker tasks usage statistics.
+ * Event loop utilization measurement statistics.
+ *
+ * @internal
  */
-export interface TasksUsage {
-  run: number
-  running: number
-  runTime: number
-  runTimeHistory: CircularArray<number>
-  avgRunTime: number
-  medRunTime: number
-  error: number
+export interface EventLoopUtilizationMeasurementStatistics {
+  readonly idle: MeasurementStatistics
+  readonly active: MeasurementStatistics
+  utilization?: number
+}
+
+/**
+ * Task statistics.
+ *
+ * @internal
+ */
+export interface TaskStatistics {
+  /**
+   * Number of executed tasks.
+   */
+  executed: number
+  /**
+   * Number of executing tasks.
+   */
+  executing: number
+  /**
+   * Number of queued tasks.
+   */
+  readonly queued: number
+  /**
+   * Maximum number of queued tasks.
+   */
+  readonly maxQueued?: number
+  /**
+   * Number of failed tasks.
+   */
+  failed: number
+}
+
+/**
+ * Enumeration of worker types.
+ */
+export const WorkerTypes = Object.freeze({
+  thread: 'thread',
+  cluster: 'cluster'
+} as const)
+
+/**
+ * Worker type.
+ */
+export type WorkerType = keyof typeof WorkerTypes
+
+/**
+ * Worker information.
+ *
+ * @internal
+ */
+export interface WorkerInfo {
+  /**
+   * Worker id.
+   */
+  readonly id: number | undefined
+  /**
+   * Worker type.
+   */
+  type: WorkerType
+  /**
+   * Dynamic flag.
+   */
+  dynamic: boolean
+  /**
+   * Ready flag.
+   */
+  ready: boolean
+  /**
+   * Task function names.
+   */
+  taskFunctions?: string[]
+}
+
+/**
+ * Worker usage statistics.
+ *
+ * @internal
+ */
+export interface WorkerUsage {
+  /**
+   * Tasks statistics.
+   */
+  readonly tasks: TaskStatistics
+  /**
+   * Tasks runtime statistics.
+   */
+  readonly runTime: MeasurementStatistics
+  /**
+   * Tasks wait time statistics.
+   */
+  readonly waitTime: MeasurementStatistics
+  /**
+   * Tasks event loop utilization statistics.
+   */
+  readonly elu: EventLoopUtilizationMeasurementStatistics
 }
 
 /**
@@ -55,29 +172,86 @@ export interface TasksUsage {
  */
 export interface IWorker {
   /**
-   * Register an event listener.
+   * Worker id.
+   */
+  readonly id?: number
+  readonly threadId?: number
+  /**
+   * Registers an event listener.
    *
    * @param event - The event.
-   * @param handler - The event listener.
+   * @param handler - The event handler.
    */
-  on: ((event: 'message', handler: MessageHandler<this>) => void) &
+  readonly on: ((event: 'online', handler: OnlineHandler<this>) => void) &
+  ((event: 'message', handler: MessageHandler<this>) => void) &
   ((event: 'error', handler: ErrorHandler<this>) => void) &
-  ((event: 'online', handler: OnlineHandler<this>) => void) &
   ((event: 'exit', handler: ExitHandler<this>) => void)
   /**
-   * Register a listener to the exit event that will only performed once.
+   * Registers a listener to the exit event that will only be performed once.
    *
    * @param event - `'exit'`.
    * @param handler - The exit handler.
    */
-  once: (event: 'exit', handler: ExitHandler<this>) => void
+  readonly once: (event: 'exit', handler: ExitHandler<this>) => void
 }
 
 /**
  * Worker node interface.
+ *
+ * @typeParam Worker - Type of worker.
+ * @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data.
+ * @internal
  */
-export interface WorkerNode<Worker extends IWorker, Data = unknown> {
-  worker: Worker
-  tasksUsage: TasksUsage
-  tasksQueue: Array<Task<Data>>
+export interface IWorkerNode<Worker extends IWorker, Data = unknown> {
+  /**
+   * Worker.
+   */
+  readonly worker: Worker
+  /**
+   * Worker info.
+   */
+  readonly info: WorkerInfo
+  /**
+   * Message channel.
+   */
+  readonly messageChannel?: MessageChannel
+  /**
+   * Worker usage statistics.
+   */
+  usage: WorkerUsage
+  /**
+   * Tasks queue size.
+   *
+   * @returns The tasks queue size.
+   */
+  readonly tasksQueueSize: () => number
+  /**
+   * Enqueue task.
+   *
+   * @param task - The task to queue.
+   * @returns The task queue size.
+   */
+  readonly enqueueTask: (task: Task<Data>) => number
+  /**
+   * Dequeue task.
+   *
+   * @returns The dequeued task.
+   */
+  readonly dequeueTask: () => Task<Data> | undefined
+  /**
+   * Clears tasks queue.
+   */
+  readonly clearTasksQueue: () => void
+  /**
+   * Resets usage statistics .
+   */
+  readonly resetUsage: () => void
+  /**
+   * Closes communication channel.
+   */
+  readonly closeChannel: () => void
+  /**
+   * Gets task worker usage statistics.
+   */
+  readonly getTaskWorkerUsage: (name: string) => WorkerUsage | undefined
 }