1// Copyright Joyent, Inc. and other Node contributors. 2// 3// Permission is hereby granted, free of charge, to any person obtaining a 4// copy of this software and associated documentation files (the 5// "Software"), to deal in the Software without restriction, including 6// without limitation the rights to use, copy, modify, merge, publish, 7// distribute, sublicense, and/or sell copies of the Software, and to permit 8// persons to whom the Software is furnished to do so, subject to the 9// following conditions: 10// 11// The above copyright notice and this permission notice shall be included 12// in all copies or substantial portions of the Software. 13// 14// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 15// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 16// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN 17// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 18// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 19// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 20// USE OR OTHER DEALINGS IN THE SOFTWARE. 21 22'use strict'; 23require('../common'); 24const net = require('net'); 25const assert = require('assert'); 26 27let cbcount = 0; 28const N = 500000; 29 30const server = net.Server(function(socket) { 31 socket.on('data', function(d) { 32 console.error(`got ${d.length} bytes`); 33 }); 34 35 socket.on('end', function() { 36 console.error('end'); 37 socket.destroy(); 38 server.close(); 39 }); 40}); 41 42let lastCalled = -1; 43function makeCallback(c) { 44 let called = false; 45 return function() { 46 if (called) 47 throw new Error(`called callback #${c} more than once`); 48 called = true; 49 if (c < lastCalled) { 50 throw new Error( 51 `callbacks out of order. last=${lastCalled} current=${c}`); 52 } 53 lastCalled = c; 54 cbcount++; 55 }; 56} 57 58server.listen(0, function() { 59 const client = net.createConnection(server.address().port); 60 61 client.on('connect', function() { 62 for (let i = 0; i < N; i++) { 63 client.write('hello world', makeCallback(i)); 64 } 65 client.end(); 66 }); 67}); 68 69process.on('exit', function() { 70 assert.strictEqual(cbcount, N); 71}); 72