Merge dependabot/npm_and_yarn/examples/typescript/http-server-pool/express-worker_thr...

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

diff --git a/src/pools/worker-node.ts b/src/pools/worker-node.ts
index 545ee7e8598398d9b5ce11df7ac86a9edc75918f..e79aed0bc3aa68b880d0d265bca4fb2ecf8a9bff 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 { Deque } from '../deque'
 import {
   type IWorker,
   type IWorkerNode,
@@ -30,8 +30,12 @@ implements IWorkerNode<Worker, Data> {
   public usage: WorkerUsage
   /** @inheritdoc */
   public tasksQueueBackPressureSize: number
+  /** @inheritdoc */
+  public onBackPressure?: (workerId: number) => void
+  /** @inheritdoc */
+  public onEmptyQueue?: (workerId: number) => void
   private readonly taskFunctionsUsage: Map<string, WorkerUsage>
-  private readonly tasksQueue: Queue<Task<Data>>
+  private readonly tasksQueue: Deque<Task<Data>>
 
   /**
    * Constructs a new worker node.
@@ -70,7 +74,7 @@ implements IWorkerNode<Worker, Data> {
     }
     this.usage = this.initWorkerUsage()
     this.taskFunctionsUsage = new Map<string, WorkerUsage>()
-    this.tasksQueue = new Queue<Task<Data>>()
+    this.tasksQueue = new Deque<Task<Data>>()
     this.tasksQueueBackPressureSize = tasksQueueBackPressureSize
   }
 
@@ -79,23 +83,40 @@ implements IWorkerNode<Worker, Data> {
     return this.tasksQueue.size
   }
 
-  /**
-   * Tasks queue maximum size.
-   *
-   * @returns The tasks queue maximum size.
-   */
-  private tasksQueueMaxSize (): number {
-    return this.tasksQueue.maxSize
+  /** @inheritdoc */
+  public enqueueTask (task: Task<Data>): number {
+    const tasksQueueSize = this.tasksQueue.push(task)
+    if (this.onBackPressure != null && this.hasBackPressure()) {
+      this.onBackPressure(this.info.id as number)
+    }
+    return tasksQueueSize
   }
 
   /** @inheritdoc */
-  public enqueueTask (task: Task<Data>): number {
-    return this.tasksQueue.enqueue(task)
+  public unshiftTask (task: Task<Data>): number {
+    const tasksQueueSize = this.tasksQueue.unshift(task)
+    if (this.onBackPressure != null && this.hasBackPressure()) {
+      this.onBackPressure(this.info.id as number)
+    }
+    return tasksQueueSize
   }
 
   /** @inheritdoc */
   public dequeueTask (): Task<Data> | undefined {
-    return this.tasksQueue.dequeue()
+    const task = this.tasksQueue.shift()
+    if (this.onEmptyQueue != null && this.tasksQueue.size === 0) {
+      this.onEmptyQueue(this.info.id as number)
+    }
+    return task
+  }
+
+  /** @inheritdoc */
+  public popTask (): Task<Data> | undefined {
+    const task = this.tasksQueue.pop()
+    if (this.onEmptyQueue != null && this.tasksQueue.size === 0) {
+      this.onEmptyQueue(this.info.id as number)
+    }
+    return task
   }
 
   /** @inheritdoc */
@@ -160,10 +181,10 @@ implements IWorkerNode<Worker, Data> {
 
   private initWorkerUsage (): WorkerUsage {
     const getTasksQueueSize = (): number => {
-      return this.tasksQueueSize()
+      return this.tasksQueue.size
     }
     const getTasksQueueMaxSize = (): number => {
-      return this.tasksQueueMaxSize()
+      return this.tasksQueue.maxSize
     }
     return {
       tasks: {