-import EventEmitter from 'node:events'
+import EventEmitterAsyncResource from 'node:events'
import type {
ErrorHandler,
ExitHandler,
/**
* Pool events emitter.
*/
-export class PoolEmitter extends EventEmitter {}
+export class PoolEmitter extends EventEmitterAsyncResource {}
/**
* Enumeration of pool events.
*/
export const PoolEvents = Object.freeze({
full: 'full',
- busy: 'busy'
+ busy: 'busy',
+ error: 'error'
} as const)
/**
exitHandler?: ExitHandler<Worker>
/**
* The worker choice strategy to use in this pool.
+ *
+ * @defaultValue WorkerChoiceStrategies.ROUND_ROBIN
*/
workerChoiceStrategy?: WorkerChoiceStrategy
/**
* The worker choice strategy options.
*/
workerChoiceStrategyOptions?: WorkerChoiceStrategyOptions
+ /**
+ * Restart worker on error.
+ */
+ restartWorkerOnError?: boolean
/**
* Pool events emission.
*
* If it is `'dynamic'`, it provides the `max` property.
*/
readonly type: PoolType
+ /**
+ * Pool maximum size.
+ */
+ readonly size: number
/**
* Pool worker nodes.
*/
*
* - `'full'`: Emitted when the pool is dynamic and full.
* - `'busy'`: Emitted when the pool is busy.
+ * - `'error'`: Emitted when an error occurs.
*/
readonly emitter?: PoolEmitter
/**
- * Finds a free worker node key based on the number of tasks the worker has applied.
- *
- * If a worker is found with `0` running tasks, it is detected as free and its worker node key is returned.
- *
- * If no free worker is found, `-1` is returned.
- *
- * @returns A worker node key if there is one, `-1` otherwise.
- */
- findFreeWorkerNodeKey: () => number
- /**
- * Executes the function specified in the constructor with the task data parameter.
+ * Executes the specified function in the worker constructor with the task data input parameter.
*
- * @param data - The input for the specified task. This can only be serializable data.
- * @returns Promise that will be resolved when the task is successfully completed.
+ * @param data - The task input data for the specified worker function. This can only be serializable data.
+ * @param name - The name of the worker function to execute. If not specified, the default worker function will be executed.
+ * @returns Promise that will be fulfilled when the task is completed.
*/
- execute: (data: Data) => Promise<Response>
+ execute: (data?: Data, name?: string) => Promise<Response>
/**
* Shutdowns every current worker in this pool.
*/