Ok. So now I am able to fork, process the system calls and read characters using the parent.

My next problem is how to communicate an option change to the child. I was originally considering SIGHUP, but I had forgotten that it is primarily used where information is stored in a file.

I could fork for each sleep cycle, but that seems wasteful.

Or I could explicitly kill the child and respawn a new one with new options. Which, for some reason, seems like cheating.

Another option would be to use only a single process and determine a way to make any input to be a signal interrupt which would need to be processed (and I'm not sure this would work).

Any other ideas out there?

In reply to Re: Emulating UNIX 'top' on AIX by Transient
in thread Emulating UNIX 'top' on AIX by Transient

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