docs: add documentation to worker function type aliases

[poolifier.git] / src / utility-types.ts

diff --git a/src/utility-types.ts b/src/utility-types.ts
index 7bcd076c291736cad1729d66a671a51b2115c1b7..ea90afd688d8622ee2128366c2b3e20d5302977a 100644 (file)
--- a/src/utility-types.ts
+++ b/src/utility-types.ts
@@ -1,28 +1,26 @@
-import type { Worker as ClusterWorker } from 'cluster'
-import type { MessagePort } from 'worker_threads'
-import type { IPoolWorker } from './pools/pool-worker'
+import type { Worker as ClusterWorker } from 'node:cluster'
+import type { MessagePort } from 'node:worker_threads'
 import type { KillBehavior } from './worker/worker-options'
+import type { IWorker, Task } from './pools/worker'
 
 /**
  * Make all properties in T non-readonly.
+ *
+ * @typeParam T - Type in which properties will be non-readonly.
  */
 export type Draft<T> = { -readonly [P in keyof T]?: T[P] }
 
 /**
- * Message object that is passed between worker and main worker.
+ * Message object that is passed between main worker and worker.
+ *
+ * @typeParam Data - Type of data sent to the worker. This can only be serializable data.
+ * @typeParam MainWorker - Type of main worker.
+ * @internal
  */
 export interface MessageValue<
   Data = unknown,
   MainWorker extends ClusterWorker | MessagePort | unknown = unknown
-> {
-  /**
-   * Input data that will be passed to the worker.
-   */
-  readonly data?: Data
-  /**
-   * Id of the message.
-   */
-  readonly id?: number
+> extends Task<Data> {
   /**
    * Kill code.
    */
@@ -32,25 +30,54 @@ export interface MessageValue<
    */
   readonly error?: string
   /**
-   * Task runtime.
+   * Runtime.
    */
-  readonly taskRunTime?: number
+  readonly runTime?: number
   /**
    * Reference to main worker.
-   *
-   * Only for internal use.
    */
   readonly parent?: MainWorker
 }
 
 /**
- * An object holding the worker that will be used to resolve/rejects the promise later on.
+ * Worker synchronous function that can be executed.
+ *
+ * @typeParam Data - Type of data sent to the worker. This can only be serializable data.
+ * @typeParam Response - Type of execution response. This can only be serializable data.
+ */
+export type WorkerSyncFunction<Data = unknown, Response = unknown> = (
+  data?: Data
+) => Response
+/**
+ * Worker asynchronous function that can be executed.
+ * This function must return a promise.
+ *
+ * @typeParam Data - Type of data sent to the worker. This can only be serializable data.
+ * @typeParam Response - Type of execution response. This can only be serializable data.
+ */
+export type WorkerAsyncFunction<Data = unknown, Response = unknown> = (
+  data?: Data
+) => Promise<Response>
+/**
+ * Worker function that can be executed.
+ * This function can be synchronous or asynchronous.
+ *
+ * @typeParam Data - Type of data sent to the worker. This can only be serializable data.
+ * @typeParam Response - Type of execution response. This can only be serializable data.
+ */
+export type WorkerFunction<Data = unknown, Response = unknown> =
+  | WorkerSyncFunction<Data, Response>
+  | WorkerAsyncFunction<Data, Response>
+
+/**
+ * An object holding the execution response promise resolve/reject callbacks.
  *
- * @template Worker Type of worker.
- * @template Response Type of response of execution. This can only be serializable data.
+ * @typeParam Worker - Type of worker.
+ * @typeParam Response - Type of execution response. This can only be serializable data.
+ * @internal
  */
-export interface PromiseWorkerResponseWrapper<
-  Worker extends IPoolWorker,
+export interface PromiseResponseWrapper<
+  Worker extends IWorker,
   Response = unknown
 > {
   /**
@@ -62,7 +89,7 @@ export interface PromiseWorkerResponseWrapper<
    */
   readonly reject: (reason?: string) => void
   /**
-   * The worker that has the assigned task.
+   * The worker handling the execution.
    */
   readonly worker: Worker
 }