This simple program will allow you to set up the number of seconds to run and to walk. It will time out accordingly.
In this application, we use a simple one-shot POSIX timer to do the job. We set the timer to use signal notification as the timer expiry notification mechanism. We set up a signal handler for a RT signal (SIGRTMIN). Next, we initially set the POSIX timer to expire after the run period, then, when the signal does arrive in the signal handler, we reset (re-arm) the timer to expire after the walk period seconds. This essentially repeats forever, or until the user aborts the program by pressing ^C.
For readability, only key parts of the source code are displayed in the following; to view the complete ...
