Experimental Physics and
Industrial Control System

On 03/26, J. Lewis Muir wrote:
> On 03/26, Johnson, Andrew N. via Tech-talk wrote:
> > The only place IOC code should be using printf() or fprintf(stderr,
> > …) is when reporting errors from initialization commands that were
> > run in a startup script or from the command-line (those should not
> > use errlog() because the output gets out of sync since it has to pass
> > through the logging system before being printed).
> 
> A problem I often see on VxWorks VME crate IOC consoles is that output
> is corrupted.  It looks as if two or more threads or processes are
> writing to the console at the same time.  Does your suggestion about
> where you consider it appropriate to use printf and fprintf include this
> situation?  How can this be avoided?

Hi, Andrew!

Any thoughts on this?

Thanks!

Lewis

References:

Filtering messages print on the IOC shell console Paduan Donadio, Marcio via Tech-talk

Re: Filtering messages print on the IOC shell console Johnson, Andrew N. via Tech-talk

Re: Filtering messages print on the IOC shell console J. Lewis Muir via Tech-talk

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