nodejs/test/parallel/test-domain-multi.js

78 lines
2.5 KiB
JavaScript

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
// Tests of multiple domains happening at once.
const common = require('../common');
const domain = require('domain');
const http = require('http');
process.on('warning', common.mustNotCall());
const a = domain.create();
a.enter(); // This will be our "root" domain
a.on('error', common.mustNotCall());
const server = http.createServer((req, res) => {
// child domain of a.
const b = domain.create();
a.add(b);
// Treat these EE objects as if they are a part of the b domain
// so, an 'error' event on them propagates to the domain, rather
// than being thrown.
b.add(req);
b.add(res);
b.on('error', common.mustCall((er) => {
if (res) {
res.writeHead(500);
res.end('An error occurred');
}
// res.writeHead(500), res.destroy, etc.
server.close();
}));
// XXX this bind should not be necessary.
// the write cb behavior in http/net should use an
// event so that it picks up the domain handling.
res.write('HELLO\n', b.bind(() => {
throw new Error('this kills domain B, not A');
}));
}).listen(0, () => {
const c = domain.create();
const req = http.get({ host: 'localhost', port: server.address().port });
// Add the request to the C domain
c.add(req);
req.on('response', (res) => {
// Add the response object to the C domain
c.add(res);
res.pipe(process.stdout);
});
c.on('error', common.mustCall((er) => { }));
});