-import { type PoolType, PoolTypes } from '../pool'
-import { FixedThreadPool, type ThreadPoolOptions } from './fixed'
+import { PoolEvents, type PoolType, PoolTypes } from '../pool.js'
+import { checkDynamicPoolSize } from '../utils.js'
+import { FixedThreadPool, type ThreadPoolOptions } from './fixed.js'
/**
* A thread pool with a dynamic number of threads, but a guaranteed minimum number of threads.
*
* This thread pool creates new threads when the others are busy, up to the maximum number of threads.
* When the maximum number of threads 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 serializable data.
- * @typeParam Response - Type of execution response. 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
*/
> extends FixedThreadPool<Data, Response> {
/**
* Constructs a new poolifier dynamic thread pool.
- *
* @param min - Minimum number of threads which are always active.
* @param max - Maximum number of threads that can be created by this pool.
* @param filePath - Path to an implementation of a `ThreadWorker` file, which can be relative or absolute.
*/
public constructor (
min: number,
- protected readonly max: number,
+ max: number,
filePath: string,
opts: ThreadPoolOptions = {}
) {
- super(min, filePath, opts)
+ super(min, filePath, opts, max)
+ checkDynamicPoolSize(
+ this.minimumNumberOfWorkers,
+ this.maximumNumberOfWorkers
+ )
}
/** @inheritDoc */
- protected get type (): PoolType {
- return PoolTypes.dynamic
+ protected shallCreateDynamicWorker (): boolean {
+ return (!this.full && this.internalBusy()) || this.empty
+ }
+
+ /** @inheritDoc */
+ protected checkAndEmitDynamicWorkerCreationEvents (): void {
+ if (this.full) {
+ this.emitter?.emit(PoolEvents.full, this.info)
+ }
}
/** @inheritDoc */
- protected get maxSize (): number {
- return this.max
+ protected get type (): PoolType {
+ return PoolTypes.dynamic
}
/** @inheritDoc */