@furystack/core/esm/port-generator.js

Core FuryStack package

const PORTS_PER_WORKER = 200;
const BASE_PORT = 14000;
const portGenerator = function* () {
    const workerId = parseInt(process.env.VITEST_POOL_ID ?? '0', 10);
    let port = BASE_PORT + workerId * PORTS_PER_WORKER;
    while (true) {
        yield port++;
    }
};
const generator = portGenerator();
/**
 * Generates a unique port number for testing purposes.
 * Each Vitest worker gets a dedicated range of {@link PORTS_PER_WORKER} ports
 * based on its VITEST_POOL_ID to avoid collisions between parallel workers.
 * @returns the next sequential port number
 */
export const getPort = () => generator.next().value;
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