X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fthread%2Ffixed.ts;h=ac629e1fb0ff7f363be0a3fe5107f2b02748c8d8;hb=369d0a5139123c2b62260d5793b36097479b23a2;hp=021de492540f50884a8e554d570f5194061212d0;hpb=a35560bac09e829e1e19f88f8fd1d71a64c9d50b;p=poolifier.git

diff --git a/src/pools/thread/fixed.ts b/src/pools/thread/fixed.ts
index 021de492..ac629e1f 100644
--- a/src/pools/thread/fixed.ts
+++ b/src/pools/thread/fixed.ts
@@ -1,92 +1,104 @@
-import { isMainThread, MessageChannel, SHARE_ENV, Worker } from 'worker_threads'
-import type { Draft, MessageValue } from '../../utility-types'
-import type { PoolOptions } from '../abstract-pool'
+import {
+  SHARE_ENV,
+  Worker,
+  type WorkerOptions,
+  isMainThread
+} from 'node:worker_threads'
+import type { MessageValue } from '../../utility-types'
 import { AbstractPool } from '../abstract-pool'
+import {
+  type PoolOptions,
+  type PoolType,
+  PoolTypes,
+  type WorkerType,
+  WorkerTypes
+} from '../pool'
 
 /**
- * A thread worker with message channels for communication between main thread and thread worker.
+ * Options for a poolifier thread pool.
  */
-export type ThreadWorkerWithMessageChannel = Worker & Draft<MessageChannel>
+export interface ThreadPoolOptions extends PoolOptions<Worker> {
+  /**
+   * Worker options.
+   *
+   * @see https://nodejs.org/api/worker_threads.html#new-workerfilename-options
+   */
+  workerOptions?: WorkerOptions
+}
 
 /**
  * A thread pool with a fixed number of threads.
  *
- * It is possible to perform tasks in sync or asynchronous mode as you prefer.
- *
- * This pool selects the threads in a round robin fashion.
- *
- * @template Data Type of data sent to the worker. This can only be serializable data.
- * @template Response Type of response of execution. This can only be serializable data.
- *
+ * @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data.
+ * @typeParam Response - Type of execution response. This can only be structured-cloneable data.
  * @author [Alessandro Pio Ardizio](https://github.com/pioardi)
  * @since 0.0.1
  */
 export class FixedThreadPool<
   Data = unknown,
   Response = unknown
-> extends AbstractPool<ThreadWorkerWithMessageChannel, Data, Response> {
+> extends AbstractPool<Worker, Data, Response> {
   /**
    * Constructs a new poolifier fixed thread pool.
    *
-   * @param numberOfThreads Number of threads for this pool.
-   * @param filePath Path to an implementation of a `ThreadWorker` file, which can be relative or absolute.
-   * @param opts Options for this fixed thread pool. Default: `{ maxTasks: 1000 }`
+   * @param numberOfThreads - Number of threads for this pool.
+   * @param filePath - Path to an implementation of a `ThreadWorker` file, which can be relative or absolute.
+   * @param opts - Options for this fixed thread pool.
    */
   public constructor (
     numberOfThreads: number,
     filePath: string,
-    opts: PoolOptions<ThreadWorkerWithMessageChannel> = { maxTasks: 1000 }
+    protected readonly opts: ThreadPoolOptions = {}
   ) {
     super(numberOfThreads, filePath, opts)
   }
 
+  /** @inheritDoc */
   protected isMain (): boolean {
     return isMainThread
   }
 
-  /** @inheritdoc */
-  public async destroyWorker (
-    worker: ThreadWorkerWithMessageChannel
-  ): Promise<void> {
+  /** @inheritDoc */
+  protected async destroyWorker (worker: Worker): Promise<void> {
     this.sendToWorker(worker, { kill: 1 })
     await worker.terminate()
   }
 
-  protected sendToWorker (
-    worker: ThreadWorkerWithMessageChannel,
-    message: MessageValue<Data>
-  ): void {
+  /** @inheritDoc */
+  protected sendToWorker (worker: Worker, message: MessageValue<Data>): void {
     worker.postMessage(message)
   }
 
-  /** @inheritdoc */
-  public registerWorkerMessageListener<Message extends Data | Response> (
-    messageChannel: ThreadWorkerWithMessageChannel,
-    listener: (message: MessageValue<Message>) => void
-  ): void {
-    messageChannel.port2?.on('message', listener)
+  /** @inheritDoc */
+  protected createWorker (): Worker {
+    return new Worker(this.filePath, {
+      env: SHARE_ENV,
+      ...this.opts.workerOptions
+    })
   }
 
-  protected unregisterWorkerMessageListener<Message extends Data | Response> (
-    messageChannel: ThreadWorkerWithMessageChannel,
-    listener: (message: MessageValue<Message>) => void
-  ): void {
-    messageChannel.port2?.removeListener('message', listener)
+  /** @inheritDoc */
+  protected get type (): PoolType {
+    return PoolTypes.fixed
   }
 
-  protected createWorker (): ThreadWorkerWithMessageChannel {
-    return new Worker(this.filePath, {
-      env: SHARE_ENV
-    })
+  /** @inheritDoc */
+  protected get worker (): WorkerType {
+    return WorkerTypes.thread
+  }
+
+  /** @inheritDoc */
+  protected get minSize (): number {
+    return this.numberOfWorkers
+  }
+
+  /** @inheritDoc */
+  protected get maxSize (): number {
+    return this.numberOfWorkers
   }
 
-  protected afterWorkerSetup (worker: ThreadWorkerWithMessageChannel): void {
-    const { port1, port2 } = new MessageChannel()
-    worker.postMessage({ parent: port1 }, [port1])
-    worker.port1 = port1
-    worker.port2 = port2
-    // We will attach a listener for every task,
-    // when task is completed the listener will be removed but to avoid warnings we are increasing the max listeners size
-    worker.port2.setMaxListeners(this.opts.maxTasks ?? 1000)
+  /** @inheritDoc */
+  protected get busy (): boolean {
+    return this.internalBusy()
   }
 }