JSONValue can not be used by custom defined interfaces (#201)

[poolifier.git] / src / worker / thread-worker.ts

diff --git a/src/worker/thread-worker.ts b/src/worker/thread-worker.ts
index a6c9ec16b64760e8f4a79feeebef0339634ff660..1070ed31d7822a86e6b2d4f96c5a9b7c7274b8dc 100644 (file)
--- a/src/worker/thread-worker.ts
+++ b/src/worker/thread-worker.ts
@@ -1,52 +1,36 @@
+import type { MessagePort } from 'worker_threads'
 import { isMainThread, parentPort } from 'worker_threads'
-import type { JSONValue, MessageValue } from '../utility-types'
+import type { MessageValue } from '../utility-types'
 import { AbstractWorker } from './abstract-worker'
 import type { WorkerOptions } from './worker-options'
 
 /**
- * An example worker that will be always alive, you just need to **extend** this class if you want a static pool.
+ * A thread worker used by a poolifier `ThreadPool`.
  *
- * When this worker is inactive for more than 1 minute, it will send this info to the main thread,
- * if you are using DynamicThreadPool, the workers created after will be killed, the min num of thread will be guaranteed.
+ * When this worker is inactive for more than the given `maxInactiveTime`,
+ * it will send a termination request to its main thread.
+ *
+ * If you use a `DynamicThreadPool` the extra workers that were created will be terminated,
+ * but the minimum number of workers will be guaranteed.
+ *
+ * @template Data Type of data this worker receives from pool's execution. This can only be serializable data.
+ * @template Response Type of response the worker sends back to the main thread. This can only be serializable data.
  *
  * @author [Alessandro Pio Ardizio](https://github.com/pioardi)
  * @since 0.0.1
  */
 export class ThreadWorker<
-  Data extends JSONValue = JSONValue,
-  Response extends JSONValue = JSONValue
+  Data = unknown,
+  Response = unknown
 > extends AbstractWorker<MessagePort, Data, Response> {
-  protected parent?: MessagePort
-
+  /**
+   * Constructs a new poolifier thread worker.
+   *
+   * @param fn Function processed by the worker when the pool's `execution` function is invoked.
+   * @param opts Options for the worker.
+   */
   public constructor (fn: (data: Data) => Response, opts: WorkerOptions = {}) {
-    super('worker-thread-pool:pioardi', isMainThread, fn, opts)
-
-    parentPort?.on('message', (value: MessageValue<Data>) => {
-      if (value?.data && value.id) {
-        // here you will receive messages
-        // console.log('This is the main worker ' + isMainThread)
-        if (this.async) {
-          this.runInAsyncScope(this.runAsync.bind(this), this, fn, value)
-        } else {
-          this.runInAsyncScope(this.run.bind(this), this, fn, value)
-        }
-      } else if (value.parent) {
-        // save the port to communicate with the main thread
-        // this will be received once
-        this.parent = value.parent
-      } else if (value.kill) {
-        // here is time to kill this worker, just clearing the interval
-        if (this.interval) clearInterval(this.interval)
-        this.emitDestroy()
-      }
-    })
-  }
-
-  protected getMainWorker (): MessagePort {
-    if (!this.parent) {
-      throw new Error('Parent was not set')
-    }
-    return this.parent
+    super('worker-thread-pool:pioardi', isMainThread, fn, parentPort, opts)
   }
 
   protected sendToMainWorker (message: MessageValue<Response>): void {