X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fcluster%2Fdynamic.ts;h=08ebc75c76a66ba5ca311c2e269988d741ad5aff;hb=d087803425ae5b3577028029dd1d2dae67d7f63b;hp=99fa828d733e15f82363d373bb8fa593d383880f;hpb=729c563db85562dd7d0f7733b1a3e2d98467134b;p=poolifier.git

diff --git a/src/pools/cluster/dynamic.ts b/src/pools/cluster/dynamic.ts
index 99fa828d..08ebc75c 100644
--- a/src/pools/cluster/dynamic.ts
+++ b/src/pools/cluster/dynamic.ts
@@ -1,75 +1,62 @@
-import type { Worker } from 'cluster'
-import type { JSONValue, MessageValue } from '../../utility-types'
-import type { ClusterPoolOptions } from './fixed'
-import { FixedClusterPool } from './fixed'
+import { checkDynamicPoolSize } from '../utils'
+import { PoolEvents, type PoolType, PoolTypes } from '../pool'
+import { type ClusterPoolOptions, FixedClusterPool } from './fixed'
 
 /**
  * A cluster pool with a dynamic number of workers, but a guaranteed minimum number of workers.
  *
  * This cluster pool creates new workers when the others are busy, up to the maximum number of workers.
- * When the maximum number of workers is reached, an event is emitted. If you want to listen to this event, use the pool's `emitter`.
- *
- * @template Data Type of data sent to the worker.
- * @template Response Type of response of execution.
+ * When the maximum number of workers is reached and workers are busy, an event is emitted. If you want to listen to this event, use the pool's `emitter`.
  *
+ * @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 [Christopher Quadflieg](https://github.com/Shinigami92)
  * @since 2.0.0
  */
 export class DynamicClusterPool<
-  Data extends JSONValue = JSONValue,
-  Response extends JSONValue = JSONValue
+  Data = unknown,
+  Response = unknown
 > extends FixedClusterPool<Data, Response> {
   /**
    * Constructs a new poolifier dynamic cluster pool.
    *
-   * @param min Minimum number of workers which are always active.
-   * @param max Maximum number of workers that can be created by this pool.
-   * @param filename Path to an implementation of a `ClusterWorker` file, which can be relative or absolute.
-   * @param opts Options for this fixed cluster pool. Default: `{ maxTasks: 1000 }`
+   * @param min - Minimum number of workers which are always active.
+   * @param max - Maximum number of workers that can be created by this pool.
+   * @param filePath - Path to an implementation of a `ClusterWorker` file, which can be relative or absolute.
+   * @param opts - Options for this dynamic cluster pool.
    */
   public constructor (
     min: number,
-    public readonly max: number,
-    filename: string,
-    opts: ClusterPoolOptions = { maxTasks: 1000 }
+    max: number,
+    filePath: string,
+    opts: ClusterPoolOptions = {}
   ) {
-    super(min, filename, opts)
+    super(min, filePath, opts, max)
+    checkDynamicPoolSize(
+      this.minimumNumberOfWorkers,
+      this.maximumNumberOfWorkers as number
+    )
   }
 
-  /**
-   * Choose a worker for the next task.
-   *
-   * It will first check for and return an idle worker.
-   * If all workers are busy, then it will try to create a new one up to the `max` worker count.
-   * If the max worker count is reached, the emitter will emit a `FullPool` event and it will fall back to using a round robin algorithm to distribute the load.
-   */
-  protected chooseWorker (): Worker {
-    let worker: Worker | undefined
-    for (const entry of this.tasks) {
-      if (entry[1] === 0) {
-        worker = entry[0]
-        break
-      }
-    }
+  /** @inheritDoc */
+  protected shallCreateDynamicWorker (): boolean {
+    return !this.full && this.internalBusy()
+  }
 
-    if (worker) {
-      // A worker is free, use it
-      return worker
-    } else {
-      if (this.workers.length === this.max) {
-        this.emitter.emit('FullPool')
-        return super.chooseWorker()
-      }
-      // All workers are busy, create a new worker
-      const worker = this.internalNewWorker()
-      worker.on('message', (message: MessageValue<Data>) => {
-        if (message.kill) {
-          this.sendToWorker(worker, { kill: 1 })
-          void this.destroyWorker(worker)
-          this.removeWorker(worker)
-        }
-      })
-      return worker
+  /** @inheritDoc */
+  protected checkAndEmitDynamicWorkerCreationEvents (): void {
+    if (this.full) {
+      this.emitter?.emit(PoolEvents.full, this.info)
     }
   }
+
+  /** @inheritDoc */
+  protected get type (): PoolType {
+    return PoolTypes.dynamic
+  }
+
+  /** @inheritDoc */
+  protected get busy (): boolean {
+    return this.full && this.internalBusy()
+  }
 }