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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');
// This test creates 20 connections to a server and sets the server's
// maxConnections property to 10. The first 10 connections make it through
// and the last 10 connections are rejected.
const N = 20;
let closes = 0;
const waits = [];
const server = net.createServer(common.mustCall(function(connection) {
connection.write('hello');
waits.push(function() { connection.end(); });
}, N / 2));
server.listen(0, function() {
makeConnection(0);
});
server.maxConnections = N / 2;
function makeConnection(index) {
const c = net.createConnection(server.address().port);
let gotData = false;
c.on('connect', function() {
if (index + 1 < N) {
makeConnection(index + 1);
}
c.on('close', function() {
console.error(`closed ${index}`);
closes++;
if (closes < N / 2) {
assert.ok(
server.maxConnections <= index,
`${index} should not have been one of the first closed connections`
);
}
if (closes === N / 2) {
let cb;
console.error('calling wait callback.');
while (cb = waits.shift()) {
cb();
}
server.close();
}
if (index < server.maxConnections) {
assert.strictEqual(gotData, true,
`${index} didn't get data, but should have`);
} else {
assert.strictEqual(gotData, false,
`${index} got data, but shouldn't have`);
}
});
});
c.on('end', function() { c.end(); });
c.on('data', function(b) {
gotData = true;
assert.ok(b.length > 0);
});
c.on('error', function(e) {
// Retry if SmartOS and ECONNREFUSED. See
// https://github.com/nodejs/node/issues/2663.
if (common.isSunOS && (e.code === 'ECONNREFUSED')) {
c.connect(server.address().port);
}
console.error(`error ${index}: ${e}`);
});
}
process.on('exit', function() {
assert.strictEqual(closes, N);
});
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