/**
- * 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 running, then the worker **wont** be deleted.
+ */
SOFT: 'SOFT',
+ /**
+ * If `lastActiveTime` is greater than `maxInactiveTime` but a task is still running, then the worker will be deleted.
+ */
HARD: 'HARD'
-})
+} as const)
+
+/**
+ * Kill behavior.
+ */
+export type KillBehavior = keyof typeof KillBehaviors
+
+/**
+ * Detects whether the given value is a kill behavior or not.
+ *
+ * @template KB Which specific KillBehavior to test against.
+ * @param killBehavior Which kind of kill behavior to detect.
+ * @param value Any value.
+ * @returns `true` if `value` was strictly equals to `killBehavior`, otherwise `false`.
+ */
+export function isKillBehavior<KB extends KillBehavior> (
+ killBehavior: KB,
+ value: unknown
+): value is KB {
+ return value === killBehavior
+}
/**
* 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 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.
+ *
+ * - 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 and 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.
*
* @default 60.000 ms
*/
*/
async?: boolean
/**
- * 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.
+ * `killBehavior` dictates if your async unit (worker/process) will be deleted in case that a task is active on it.
+ *
+ * - SOFT: If `currentTime - lastActiveTime` is greater than `maxInactiveTime` but a task is still running, then the worker **won't** be deleted.
+ * - HARD: If `lastActiveTime` is greater than `maxInactiveTime` but a task is still running, then the worker will be deleted.
+ *
* This option only apply to the newly created workers.
*
- * @default SOFT
+ * @default KillBehaviors.SOFT
*/
- killBehavior?: string
+ killBehavior?: KillBehavior
}