-import { PoolType } from '../pool-internal'
-import type { ClusterPoolOptions } from './fixed'
-import { FixedClusterPool } from './fixed'
+import { PoolEvents, type PoolType, PoolTypes } from '../pool.js'
+import { checkDynamicPoolSize } from '../utils.js'
+import { type ClusterPoolOptions, FixedClusterPool } from './fixed.js'
/**
* 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`.
+ * 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`.
*
- * @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 [Christopher Quadflieg](https://github.com/Shinigami92)
* @since 2.0.0
*/
/**
* 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 filePath Path to an implementation of a `ClusterWorker` file, which can be relative or absolute.
- * @param opts Options for this 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 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,
+ max: number,
filePath: string,
opts: ClusterPoolOptions = {}
) {
- super(min, filePath, opts)
+ super(min, filePath, opts, max)
+ checkDynamicPoolSize(
+ this.minimumNumberOfWorkers,
+ this.maximumNumberOfWorkers
+ )
}
/** @inheritDoc */
- public get type (): PoolType {
- return PoolType.DYNAMIC
+ protected shallCreateDynamicWorker (): boolean {
+ return (!this.full && this.internalBusy()) || this.empty
}
/** @inheritDoc */
- public get busy (): boolean {
- return this.workers.length === this.max
+ 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()
}
}