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'use strict';
const common = require('../common');
if (!common.hasIPv6)
common.skip('no IPv6 support');
const assert = require('assert');
const cluster = require('cluster');
const net = require('net');
const Countdown = require('../common/countdown');
// This test ensures that the `ipv6Only` option in `net.Server.listen()`
// works as expected when we use cluster with `SCHED_NONE` schedulingPolicy.
cluster.schedulingPolicy = cluster.SCHED_NONE;
const host = '::';
const WORKER_ACCOUNT = 3;
if (cluster.isMaster) {
const workers = new Map();
const countdown = new Countdown(WORKER_ACCOUNT, () => {
// Make sure the `ipv6Only` option works. This is the part of the test that
// requires the whole test to use `common.PORT` rather than port `0`. If it
// used port `0` instead, then the operating system can supply a port that
// is available for the IPv6 interface but in use by the IPv4 interface.
// Refs: https://github.com/nodejs/node/issues/29679
const server = net.createServer().listen({
host: '0.0.0.0',
port: common.PORT,
}, common.mustCall(() => {
// Exit.
server.close();
workers.forEach((worker) => {
worker.disconnect();
});
}));
});
for (let i = 0; i < WORKER_ACCOUNT; i += 1) {
const worker = cluster.fork().on('exit', common.mustCall((statusCode) => {
assert.strictEqual(statusCode, 0);
})).on('listening', common.mustCall((workerAddress) => {
assert.strictEqual(workerAddress.addressType, 6);
assert.strictEqual(workerAddress.address, host);
assert.strictEqual(workerAddress.port, common.PORT);
countdown.dec();
}));
workers.set(i, worker);
}
} else {
net.createServer().listen({
host,
port: common.PORT,
ipv6Only: true,
}, common.mustCall());
}
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