fix: update worker choice internals without tasks queuing

[poolifier.git] / src / pools / pool.ts

diff --git a/src/pools/pool.ts b/src/pools/pool.ts
index 14b30812d14bd21e55c0af4aee77db5daf8bc7e4..257b0d64b0844d664ba00763b1dcde79c4711ee7 100644 (file)
--- a/src/pools/pool.ts
+++ b/src/pools/pool.ts
@@ -13,21 +13,36 @@ import type {
 } from './selection-strategies/selection-strategies-types'
 
 /**
- * Pool types.
- *
- * @enum
- * @internal
+ * Enumeration of pool types.
  */
-export enum PoolType {
+export const PoolTypes = Object.freeze({
   /**
    * Fixed pool type.
    */
-  FIXED = 'fixed',
+  fixed: 'fixed',
   /**
    * Dynamic pool type.
    */
-  DYNAMIC = 'dynamic'
-}
+  dynamic: 'dynamic'
+} as const)
+
+/**
+ * Pool type.
+ */
+export type PoolType = keyof typeof PoolTypes
+
+/**
+ * Enumeration of worker types.
+ */
+export const WorkerTypes = Object.freeze({
+  cluster: 'cluster',
+  thread: 'thread'
+} as const)
+
+/**
+ * Worker type.
+ */
+export type WorkerType = keyof typeof WorkerTypes
 
 /**
  * Pool events emitter.
@@ -39,7 +54,9 @@ export class PoolEmitter extends EventEmitterAsyncResource {}
  */
 export const PoolEvents = Object.freeze({
   full: 'full',
-  busy: 'busy'
+  busy: 'busy',
+  error: 'error',
+  taskError: 'taskError'
 } as const)
 
 /**
@@ -47,6 +64,24 @@ export const PoolEvents = Object.freeze({
  */
 export type PoolEvent = keyof typeof PoolEvents
 
+/**
+ * Pool information.
+ */
+export interface PoolInfo {
+  type: PoolType
+  worker: WorkerType
+  minSize: number
+  maxSize: number
+  workerNodes: number
+  idleWorkerNodes: number
+  busyWorkerNodes: number
+  executedTasks: number
+  executingTasks: number
+  queuedTasks: number
+  maxQueuedTasks: number
+  failedTasks: number
+}
+
 /**
  * Worker tasks queue options.
  */
@@ -91,6 +126,10 @@ export interface PoolOptions<Worker extends IWorker> {
    * The worker choice strategy options.
    */
   workerChoiceStrategyOptions?: WorkerChoiceStrategyOptions
+  /**
+   * Restart worker on error.
+   */
+  restartWorkerOnError?: boolean
   /**
    * Pool events emission.
    *
@@ -122,15 +161,9 @@ export interface IPool<
   Response = unknown
 > {
   /**
-   * Pool type.
-   *
-   * If it is `'dynamic'`, it provides the `max` property.
-   */
-  readonly type: PoolType
-  /**
-   * Pool maximum size.
+   * Pool information.
    */
-  readonly size: number
+  readonly info: PoolInfo
   /**
    * Pool worker nodes.
    */
@@ -142,6 +175,8 @@ export interface IPool<
    *
    * - `'full'`: Emitted when the pool is dynamic and full.
    * - `'busy'`: Emitted when the pool is busy.
+   * - `'error'`: Emitted when an uncaught error occurs.
+   * - `'taskError'`: Emitted when an error occurs while executing a task.
    */
   readonly emitter?: PoolEmitter
   /**
@@ -153,7 +188,7 @@ export interface IPool<
    */
   execute: (data?: Data, name?: string) => Promise<Response>
   /**
-   * Shutdowns every current worker in this pool.
+   * Terminate every current worker in this pool.
    */
   destroy: () => Promise<void>
   /**