🚀 go-pugleaf

Hello--
  I am trying to write a front end for a program and I need some help.

   The idea is something like this.

     FILE *pipe = popen( "program", "rw" );


     while ( test )
     {
        read from pipe only if data is waiting to be read.
        process data.
        read from stdin only if data ready
        process keystokes and send out on the pipe
     }

I assume this needs some kind of non-blocking io calls for the streams,
but I am not sure how to go about doing this.
 
Any help would be appreciated.   Thanks

D.L.