nodejs/test/parallel/test-cluster-shared-leak.js

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2022-08-16 11:12:47 +08:00
// In Node 4.2.1 on operating systems other than Linux, this test triggers an
// assertion in cluster.js. The assertion protects against memory leaks.
// https://github.com/nodejs/node/pull/3510
'use strict';
const common = require('../common');
const assert = require('assert');
const net = require('net');
const cluster = require('cluster');
cluster.schedulingPolicy = cluster.SCHED_NONE;
if (cluster.isMaster) {
let conn, worker2;
const worker1 = cluster.fork();
worker1.on('listening', common.mustCall(function(address) {
worker2 = cluster.fork();
worker2.on('online', function() {
conn = net.connect(address.port, common.mustCall(function() {
worker1.disconnect();
worker2.disconnect();
}));
conn.on('error', function(e) {
// ECONNRESET is OK
if (e.code !== 'ECONNRESET')
throw e;
});
});
}));
cluster.on('exit', function(worker, exitCode, signalCode) {
assert(worker === worker1 || worker === worker2);
assert.strictEqual(exitCode, 0);
assert.strictEqual(signalCode, null);
if (Object.keys(cluster.workers).length === 0)
conn.destroy();
});
return;
}
const server = net.createServer(function(c) {
c.on('error', function(e) {
// ECONNRESET is OK, so we don't exit with code !== 0
if (e.code !== 'ECONNRESET')
throw e;
});
c.end('bye');
});
server.listen(0);