refactor: silence rollup warning

[poolifier.git] / src / pools / worker-node.ts

diff --git a/src/pools/worker-node.ts b/src/pools/worker-node.ts
index 09e4a7b5cd8831360365a7a88e338e3b921eaf91..d8044032014d02d36e6cbe70ffd10026f6a085ea 100644 (file)
--- a/src/pools/worker-node.ts
+++ b/src/pools/worker-node.ts
@@ -1,8 +1,8 @@
 import { MessageChannel } from 'node:worker_threads'
 import { CircularArray } from '../circular-array'
-import { Queue } from '../queue'
 import type { Task } from '../utility-types'
-import { DEFAULT_TASK_NAME } from '../utils'
+import { DEFAULT_TASK_NAME, once } from '../utils'
+import { Deque } from '../deque'
 import {
   type IWorker,
   type IWorkerNode,
@@ -28,32 +28,41 @@ implements IWorkerNode<Worker, Data> {
   public messageChannel?: MessageChannel
   /** @inheritdoc */
   public usage: WorkerUsage
+  /** @inheritdoc */
+  public tasksQueueBackPressureSize: number
+  /** @inheritdoc */
+  public onBackPressure?: (workerId: number) => void
   private readonly taskFunctionsUsage: Map<string, WorkerUsage>
-  private readonly tasksQueue: Queue<Task<Data>>
-  private readonly tasksQueueBackPressureSize: number
+  private readonly tasksQueue: Deque<Task<Data>>
 
   /**
    * Constructs a new worker node.
    *
    * @param worker - The worker.
    * @param workerType - The worker type.
-   * @param poolMaxSize - The pool maximum size.
+   * @param tasksQueueBackPressureSize - The tasks queue back pressure size.
    */
-  constructor (worker: Worker, workerType: WorkerType, poolMaxSize: number) {
+  constructor (
+    worker: Worker,
+    workerType: WorkerType,
+    tasksQueueBackPressureSize: number
+  ) {
     if (worker == null) {
-      throw new Error('Cannot construct a worker node without a worker')
+      throw new TypeError('Cannot construct a worker node without a worker')
     }
     if (workerType == null) {
-      throw new Error('Cannot construct a worker node without a worker type')
+      throw new TypeError(
+        'Cannot construct a worker node without a worker type'
+      )
     }
-    if (poolMaxSize == null) {
-      throw new Error(
-        'Cannot construct a worker node without a pool maximum size'
+    if (tasksQueueBackPressureSize == null) {
+      throw new TypeError(
+        'Cannot construct a worker node without a tasks queue back pressure size'
       )
     }
-    if (isNaN(poolMaxSize)) {
-      throw new Error(
-        'Cannot construct a worker node with a NaN pool maximum size'
+    if (!Number.isSafeInteger(tasksQueueBackPressureSize)) {
+      throw new TypeError(
+        'Cannot construct a worker node with a tasks queue back pressure size that is not an integer'
       )
     }
     this.worker = worker
@@ -63,8 +72,8 @@ implements IWorkerNode<Worker, Data> {
     }
     this.usage = this.initWorkerUsage()
     this.taskFunctionsUsage = new Map<string, WorkerUsage>()
-    this.tasksQueue = new Queue<Task<Data>>()
-    this.tasksQueueBackPressureSize = Math.pow(poolMaxSize, 2)
+    this.tasksQueue = new Deque<Task<Data>>()
+    this.tasksQueueBackPressureSize = tasksQueueBackPressureSize
   }
 
   /** @inheritdoc */
@@ -83,12 +92,30 @@ implements IWorkerNode<Worker, Data> {
 
   /** @inheritdoc */
   public enqueueTask (task: Task<Data>): number {
-    return this.tasksQueue.enqueue(task)
+    const tasksQueueSize = this.tasksQueue.push(task)
+    if (this.onBackPressure != null && this.hasBackPressure()) {
+      once(this.onBackPressure, this)(this.info.id as number)
+    }
+    return tasksQueueSize
+  }
+
+  /** @inheritdoc */
+  public unshiftTask (task: Task<Data>): number {
+    const tasksQueueSize = this.tasksQueue.unshift(task)
+    if (this.onBackPressure != null && this.hasBackPressure()) {
+      once(this.onBackPressure, this)(this.info.id as number)
+    }
+    return tasksQueueSize
   }
 
   /** @inheritdoc */
   public dequeueTask (): Task<Data> | undefined {
-    return this.tasksQueue.dequeue()
+    return this.tasksQueue.shift()
+  }
+
+  /** @inheritdoc */
+  public popTask (): Task<Data> | undefined {
+    return this.tasksQueue.pop()
   }
 
   /** @inheritdoc */
@@ -188,21 +215,25 @@ implements IWorkerNode<Worker, Data> {
   }
 
   private initTaskFunctionWorkerUsage (name: string): WorkerUsage {
-    const getTaskQueueSize = (): number => {
-      let taskQueueSize = 0
+    const getTaskFunctionQueueSize = (): number => {
+      let taskFunctionQueueSize = 0
       for (const task of this.tasksQueue) {
-        if (task.name === name) {
-          ++taskQueueSize
+        if (
+          (task.name === DEFAULT_TASK_NAME &&
+            name === (this.info.taskFunctions as string[])[1]) ||
+          (task.name !== DEFAULT_TASK_NAME && name === task.name)
+        ) {
+          ++taskFunctionQueueSize
         }
       }
-      return taskQueueSize
+      return taskFunctionQueueSize
     }
     return {
       tasks: {
         executed: 0,
         executing: 0,
         get queued (): number {
-          return getTaskQueueSize()
+          return getTaskFunctionQueueSize()
         },
         failed: 0
       },