title: Streaming data from C++ program?
body: <p>I want to stream some data from my program for other subscribers (other programs). These programs can use these data as streaming event. </p>
  
  <p><strong>What I want?</strong></p>
  
  <ul>
  <li>How it is done generally?</li>
  <li>Any libraries or papers pointing to technique and pros/cons?</li>
  <li>Security related Ideas?</li>
  </ul>
  
  <p>I will dig more information on my own even if I get a small hint.</p>
  
  <p>Example : </p>
  
  <p><strong>Program A</strong> : Object A changed  =======> <strong>Program B</strong> : Report Change in Object A</p>