title: how to send signal from one program to another?
body: <p>i am using message queue as an ipc between 2 programs.
  Now i want to send data from one program to another using message queue and then intimate it through a signal SIGINT.</p>
  
  <p>I dont know how to send a signal from one program to another .
  Can anybody pls provide a sample code if they have the solution.</p>