redis-smq-common/dist/esm/src/net/index.js

Provides essential components and utilities shared across RedisSMQ packages.

import { createServer } from 'net';
async function isPortInUse(port) {
    return new Promise((resolve) => {
        const server = createServer()
            .once('error', (err) => {
            if (err.code === 'EADDRINUSE') {
                resolve(true);
            }
            else {
                resolve(false);
            }
        })
            .once('listening', () => {
            server.close();
            resolve(false);
        })
            .listen(port, '127.0.0.1');
    });
}
async function getRandomPort() {
    const MIN_PORT = 1024;
    const MAX_PORT = 65535;
    const MAX_ATTEMPTS = 100;
    for (let attempt = 0; attempt < MAX_ATTEMPTS; attempt++) {
        const port = Math.floor(Math.random() * (MAX_PORT - MIN_PORT + 1)) + MIN_PORT;
        if (!(await isPortInUse(port))) {
            return port;
        }
    }
    throw new Error('Unable to find an available port after multiple attempts');
}
export const net = {
    isPortInUse,
    getRandomPort,
};
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