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// 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';
const common = require('../common');
const assert = require('assert');
const net = require('net');
function pingPongTest(port, host) {
const N = 1000;
let count = 0;
let sentPongs = 0;
let sent_final_ping = false;
const server = net.createServer(
{ allowHalfOpen: true },
common.mustCall(onSocket)
);
function onSocket(socket) {
assert.strictEqual(socket.server, server);
assert.strictEqual(
server,
server.getConnections(common.mustSucceed((connections) => {
assert.strictEqual(connections, 1);
}))
);
socket.setNoDelay();
socket.timeout = 0;
socket.setEncoding('utf8');
socket.on('data', common.mustCall(function(data) {
// Since we never queue data (we're always waiting for the PING
// before sending a pong) the writeQueueSize should always be less
// than one message.
assert.ok(socket.bufferSize >= 0 && socket.bufferSize <= 4);
assert.strictEqual(socket.writable, true);
assert.strictEqual(socket.readable, true);
assert.ok(count <= N);
assert.strictEqual(data, 'PING');
socket.write('PONG', common.mustCall(function() {
sentPongs++;
}));
}, N + 1));
socket.on('end', common.mustCall(function() {
assert.strictEqual(socket.allowHalfOpen, true);
assert.strictEqual(socket.writable, true); // Because allowHalfOpen
assert.strictEqual(socket.readable, false);
socket.end();
}));
socket.on('error', common.mustNotCall());
socket.on('close', common.mustCall(function() {
assert.strictEqual(socket.writable, false);
assert.strictEqual(socket.readable, false);
socket.server.close();
}));
}
server.listen(port, host, common.mustCall(function() {
if (this.address().port)
port = this.address().port;
const client = net.createConnection(port, host);
client.setEncoding('ascii');
client.on('connect', common.mustCall(function() {
assert.strictEqual(client.readable, true);
assert.strictEqual(client.writable, true);
client.write('PING');
}));
client.on('data', common.mustCall(function(data) {
assert.strictEqual(data, 'PONG');
count += 1;
if (sent_final_ping) {
assert.strictEqual(client.writable, false);
assert.strictEqual(client.readable, true);
return;
}
assert.strictEqual(client.writable, true);
assert.strictEqual(client.readable, true);
if (count < N) {
client.write('PING');
} else {
sent_final_ping = true;
client.write('PING');
client.end();
}
}, N + 1));
client.on('close', common.mustCall(function() {
assert.strictEqual(count, N + 1);
assert.strictEqual(sentPongs, N + 1);
assert.strictEqual(sent_final_ping, true);
}));
client.on('error', common.mustNotCall());
}));
}
/* All are run at once, so run on different ports */
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
pingPongTest(common.PIPE);
pingPongTest(0);
if (common.hasIPv6) pingPongTest(0, '::1'); else pingPongTest(0, '127.0.0.1');
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