fix: fix dynamic import syntax

[poolifier.git] / src / worker / worker-options.ts

diff --git a/src/worker/worker-options.ts b/src/worker/worker-options.ts
index 0236164b382ed66972789c8ce3209e73e6b28564..90aea1efc04e9c2d5015b910909831bc4b71f4af 100644 (file)
--- a/src/worker/worker-options.ts
+++ b/src/worker/worker-options.ts
@@ -1,3 +1,37 @@
+/**
+ * Enumeration of kill behaviors.
+ */
+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
+
+/**
+ * Detects whether the given value is a kill behavior or not.
+ *
+ * @typeParam KB - Which specific KillBehavior type 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 const isKillBehavior = <KB extends KillBehavior>(
+  killBehavior: KB,
+  value: unknown
+): value is KB => {
+  return value === killBehavior
+}
+
 /**
  * Options for workers.
  */
@@ -6,14 +40,31 @@ 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.
    *
-   * @default 60.000 ms
+   * - 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.
+   *
+   * @defaultValue 60000
    */
   maxInactiveTime?: number
   /**
    * Whether your worker will perform asynchronous or not.
    *
-   * @default false
+   * @defaultValue false
+   * @deprecated This option will be removed in the next major version.
    */
   async?: boolean
+  /**
+   * `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 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.
+   *
+   * This option only apply to the newly created workers.
+   *
+   * @defaultValue KillBehaviors.SOFT
+   */
+  killBehavior?: KillBehavior
 }