title: header file for the function poll
body: <p>I am trying to create a chat application with a non-blocking socket. for this I am supposed to use the <code>poll()</code> function. I understand that I've to include the "poll.h" header file but my compiler says "No such file or directory found",On the other hand If I don't include this file my code accepts the structure <code>pollfd</code>,it compiles fine but at run time gives me the error that the variable "P is used without being initialised"(I defined "P" to be a <code>pollfd</code> variable)
  could some one tell me what should I do in this situation...
  Is it possible to download header files?
  I am working on visual studio 2008.</p>