-import { threadId } from 'worker_threads';
+import { getRandomValues } from 'node:crypto';
import chalk from 'chalk';
-export class WorkerUtils {
- private constructor() {
- // This is intentional
+export const sleep = async (milliSeconds: number): Promise<NodeJS.Timeout> => {
+ return new Promise<NodeJS.Timeout>((resolve) => setTimeout(resolve as () => void, milliSeconds));
+};
+
+export const defaultExitHandler = (code: number): void => {
+ if (code === 0) {
+ console.info(chalk.green('Worker exited successfully'));
+ } else if (code === 1) {
+ console.info(chalk.green('Worker terminated successfully'));
+ } else if (code > 1) {
+ console.error(chalk.red(`Worker exited with exit code: ${code.toString()}`));
}
+};
+
+export const defaultErrorHandler = (error: Error): void => {
+ console.error(chalk.red('Worker errored: '), error);
+};
+
+export const randomizeDelay = (delay: number): number => {
+ const random = secureRandom();
+ const sign = random < 0.5 ? -1 : 1;
+ const randomSum = delay * 0.2 * random; // 0-20% of the delay
+ return delay + sign * randomSum;
+};
- public static defaultExitHandler = (code: number): void => {
- if (code !== 0) {
- console.error(chalk.red(`Worker ${threadId} stopped with exit code ${code}`));
- }
- };
-}
+/**
+ * Generates a cryptographically secure random number in the [0,1[ range
+ *
+ * @returns A number in the [0,1[ range
+ * @internal
+ */
+const secureRandom = (): number => {
+ return getRandomValues(new Uint32Array(1))[0] / 0x100000000;
+};