/**
- * Kill behavior enumeration
+ * Enumeration of kill behaviors.
*/
-export const killBehaviorEnumeration = Object.freeze({
+export const KillBehaviors = Object.freeze({
+ /**
+ * If `currentTime - lastActiveTime` is greater than `maxInactiveTime` but a task is still executing or queued, then the worker **wont** be deleted.
+ */
SOFT: 'SOFT',
+ /**
+ * If `currentTime - lastActiveTime` is greater than `maxInactiveTime` but a task is still executing or queued, then the worker will be deleted.
+ */
HARD: 'HARD'
-})
+} as const)
+
+/**
+ * Kill behavior.
+ */
+export type KillBehavior = keyof typeof KillBehaviors
+
+/**
+ * Handler called when a worker is killed.
+ */
+export type KillHandler = () => void | Promise<void>
/**
* Options for workers.
*/
export interface WorkerOptions {
/**
- * Maximum waiting time in milliseconds for tasks.
- * After this time, newly created workers will be terminated.
- * The last active time of your worker unit will be updated when a task is submitted to a worker or when a worker terminate a task.
- * If `killBehavior` is set to `HARD` this value represents also the timeout for the tasks that you submit to the pool,
- * when this timeout expires your tasks is interrupted and the worker is killed if it is not part of the minimum size of the pool.
- * If `killBehavior` is set to `SOFT` your tasks have no timeout and your workers will not be terminated until your task is finished.
+ * `killBehavior` dictates if your worker will be deleted in case a task is active on it.
+ *
+ * - SOFT: If `currentTime - lastActiveTime` is greater than `maxInactiveTime` but a task is still executing or queued, then the worker **won't** be deleted.
+ * - HARD: If `currentTime - lastActiveTime` is greater than `maxInactiveTime` but a task is still executing or queued, then the worker will be deleted.
*
- * @default 60.000 ms
+ * This option only apply to the newly created workers.
+ *
+ * @defaultValue KillBehaviors.SOFT
*/
- maxInactiveTime?: number
+ killBehavior?: KillBehavior
/**
- * Whether your worker will perform asynchronous or not.
+ * Maximum waiting time in milliseconds for tasks on newly created workers. It must be greater or equal than 5.
*
- * @default false
+ * After this time, newly created workers will be terminated.
+ * The last active time of your worker will be updated when it terminates a task.
+ *
+ * - If `killBehavior` is set to `KillBehaviors.HARD` this value represents also the timeout for the tasks that you submit to the pool,
+ * when this timeout expires your tasks is interrupted before completion and removed. The worker is killed if is not part of the minimum size of the pool.
+ * - If `killBehavior` is set to `KillBehaviors.SOFT` your tasks have no timeout and your workers will not be terminated until your task is completed.
+ *
+ * @defaultValue 60000
*/
- async?: boolean
+ maxInactiveTime?: number
/**
- * killBehavior dictates if your async unit ( worker/process ) will be deleted in case that a task is active on it.
- * SOFT: If current time - last active time is greater than `maxInactiveTime` option, but a task is still running then the worker will be not deleted.
- * HARD: If last active time is greater than `maxInactiveTime` option, but a task is still running then the worker will be deleted.
- * This option only apply to the newly created workers.
+ * The function to call when a worker is killed.
*
- * @default `'SOFT'`
+ * @defaultValue `() => {}`
*/
- killBehavior?: 'HARD' | 'SOFT'
+ killHandler?: KillHandler
}