mirror of https://gitee.com/openkylin/nodejs.git
53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const cp = require('child_process');
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const net = require('net');
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if (process.argv[2] !== 'child') {
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// The parent process forks a child process, starts a TCP server, and connects
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// to the server. The accepted connection is passed to the child process,
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// where the socket is written. Then, the child signals the parent process to
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// write to the same socket.
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let result = '';
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process.on('exit', () => {
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assert.strictEqual(result, 'childparent');
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});
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const child = cp.fork(__filename, ['child']);
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// Verify that the child exits successfully
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child.on('exit', common.mustCall((exitCode, signalCode) => {
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assert.strictEqual(exitCode, 0);
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assert.strictEqual(signalCode, null);
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}));
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const server = net.createServer((socket) => {
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child.on('message', common.mustCall((msg) => {
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assert.strictEqual(msg, 'child_done');
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socket.end('parent', () => {
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server.close();
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child.disconnect();
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});
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}));
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child.send('socket', socket, { keepOpen: true }, common.mustCall((err) => {
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assert.ifError(err);
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}));
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});
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server.listen(0, () => {
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const socket = net.connect(server.address().port, common.localhostIPv4);
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socket.setEncoding('utf8');
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socket.on('data', (data) => result += data);
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});
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} else {
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// The child process receives the socket from the parent, writes data to
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// the socket, then signals the parent process to write
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process.on('message', common.mustCall((msg, socket) => {
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assert.strictEqual(msg, 'socket');
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socket.write('child', () => process.send('child_done'));
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}));
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}
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