brokowski/perf/startContinuousPublisher.js

RESTful publish/subscribe toolkit including broker, publisher and subscriber

/**
  * Most of this stuff is used from the performance tests of node-zmq.
  * 
  * Copyright (c) 2011 TJ Holowaychuk
  * Copyright (c) 2010, 2011 Justin Tulloss

  * 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.
  */
  
var assert = require('assert');

if (process.argv.length != 6) {
  console.log('usage: remote_thr <broker> <event> <message-size> <period in ms>')
  process.exit(1)
}

var connect_to = process.argv[2]
var event = process.argv[3]
var message_size = Number(process.argv[4])
var period = Number(process.argv[5])
var message = new Buffer(message_size);
message.fill('h');
message = message.toString();

var counter = 0
  , i = 0;

pub = require('../brokowski').pub(connect_to);

function send() {
  pub.send(event, message);
  setTimeout(send, period);
}

// because of what seems to be a bug in node-zmq, we would lose messages
// if we start sending immediately after calling connect(), so to make this
// benchmark behave well, we wait a bit...

setTimeout(send, 1000);