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95 lines
2.6 KiB
95 lines
2.6 KiB
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const http = require('http');
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const net = require('net');
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if (common.isWindows) {
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common.skip('This test is disabled on windows.');
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return;
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}
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switch (process.argv[2]) {
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case 'child': return child();
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}
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var ok;
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process.on('exit', function() {
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assert.ok(ok);
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});
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// WARNING: This is an example of listening on some arbitrary FD number
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// that has already been bound elsewhere in advance. However, binding
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// server handles to stdio fd's is NOT a good or reliable way to do
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// concurrency in HTTP servers! Use the cluster module, or if you want
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// a more low-level approach, use child process IPC manually.
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test(function(child, port) {
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// now make sure that we can request to the child, then kill it.
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http.get({
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server: 'localhost',
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port: port,
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path: '/',
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}).on('response', function(res) {
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var s = '';
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res.on('data', function(c) {
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s += c.toString();
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});
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res.on('end', function() {
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child.kill();
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child.on('exit', function() {
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assert.equal(s, 'hello from child\n');
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assert.equal(res.statusCode, 200);
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console.log('ok');
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ok = true;
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});
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});
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});
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});
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function child() {
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// Prevent outliving the parent process in case it is terminated before
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// killing this child process.
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process.on('disconnect', function() {
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console.error('exit on disconnect');
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process.exit(0);
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});
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// start a server on fd=3
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http.createServer(function(req, res) {
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console.error('request on child');
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console.error('%s %s', req.method, req.url, req.headers);
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res.end('hello from child\n');
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}).listen({ fd: 3 }, function() {
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console.error('child listening on fd=3');
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process.send('listening');
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});
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}
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function test(cb) {
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var server = net.createServer(function(conn) {
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console.error('connection on parent');
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conn.end('hello from parent\n');
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}).listen(0, function() {
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const port = this.address().port;
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console.error('server listening on %d', port);
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const spawn = require('child_process').spawn;
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var child = spawn(process.execPath, [__filename, 'child'], {
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stdio: [ 0, 1, 2, server._handle, 'ipc' ]
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});
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console.log('%j\n', { pid: child.pid });
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// Now close the parent, so that the child is the only thing
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// referencing that handle. Note that connections will still
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// be accepted, because the child has the fd open.
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server.close();
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child.on('message', function(msg) {
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if (msg === 'listening') {
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cb(child, port);
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}
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});
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});
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}
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