+ public listTaskFunctionsProperties (): TaskFunctionProperties[] {
+ let defaultTaskFunctionName = DEFAULT_TASK_NAME
+ for (const [name, fnObj] of this.taskFunctions) {
+ if (
+ name !== DEFAULT_TASK_NAME &&
+ fnObj === this.taskFunctions.get(DEFAULT_TASK_NAME)
+ ) {
+ defaultTaskFunctionName = name
+ break
+ }
+ }
+ const taskFunctionsProperties: TaskFunctionProperties[] = []
+ for (const [name, fnObj] of this.taskFunctions) {
+ if (name === DEFAULT_TASK_NAME || name === defaultTaskFunctionName) {
+ continue
+ }
+ taskFunctionsProperties.push(buildTaskFunctionProperties(name, fnObj))
+ }
+ return [
+ buildTaskFunctionProperties(
+ DEFAULT_TASK_NAME,
+ this.taskFunctions.get(DEFAULT_TASK_NAME)
+ ),
+ buildTaskFunctionProperties(
+ defaultTaskFunctionName,
+ this.taskFunctions.get(defaultTaskFunctionName)
+ ),
+ ...taskFunctionsProperties
+ ]
+ }
+
+ /**
+ * Sets the default task function to use in the worker.
+ *
+ * @param name - The name of the task function to use as default task function.
+ * @returns Whether the default task function was set or not.
+ */
+ public setDefaultTaskFunction (name: string): TaskFunctionOperationResult {
+ try {
+ checkTaskFunctionName(name)
+ if (name === DEFAULT_TASK_NAME) {
+ throw new Error(
+ 'Cannot set the default task function reserved name as the default task function'
+ )
+ }
+ if (!this.taskFunctions.has(name)) {
+ throw new Error(
+ 'Cannot set the default task function to a non-existing task function'
+ )
+ }
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ this.taskFunctions.set(DEFAULT_TASK_NAME, this.taskFunctions.get(name)!)
+ this.sendTaskFunctionsPropertiesToMainWorker()
+ return { status: true }
+ } catch (error) {
+ return { status: false, error: error as Error }
+ }
+ }
+
+ /**
+ * Handles the ready message sent by the main worker.
+ *
+ * @param message - The ready message.
+ */
+ protected abstract handleReadyMessage (message: MessageValue<Data>): void
+
+ /**
+ * Worker message listener.
+ *
+ * @param message - The received message.
+ */
+ protected messageListener (message: MessageValue<Data>): void {
+ this.checkMessageWorkerId(message)
+ const {
+ statistics,
+ checkActive,
+ taskFunctionOperation,
+ taskId,
+ data,
+ kill
+ } = message
+ if (statistics != null) {
+ // Statistics message received
+ this.statistics = statistics
+ } else if (checkActive != null) {
+ // Check active message received
+ checkActive ? this.startCheckActive() : this.stopCheckActive()
+ } else if (taskFunctionOperation != null) {
+ // Task function operation message received
+ this.handleTaskFunctionOperationMessage(message)
+ } else if (taskId != null && data != null) {
+ // Task message received
+ this.run(message)
+ } else if (kill === true) {
+ // Kill message received
+ this.handleKillMessage(message)