Nut upsdev - Oct 2024 - Why only the first of a series of calls to a function in my driver executing?

Hello all,

In my new driver I have a function that searches for the position of 
a known substring in a delimited string. I am trying to populate a 
series of integer variables with the position value of various 
substrings. The first call to the function performs correctly but the 
remaining calls in the code series are not being executed (there are 
six more calls after the first successful one). Any ideas why only 
the first call is being done?

Similarly, I have another function that takes a position variable and 
pulls the data in the nth position from a delimited string. There is 
also a series of these called in a row and only the first is being called.

Any ideas on what to look for would be appreciated.

Thanks,

Bill



-- 
This email has been checked for viruses by AVG antivirus software.
www.avg.com

Hello, always nice to hear about new drivers :)

OTOH, check for any variables you might have been re-using, so their
earlier state impacts later runs - whether buffers allocated statically (or
by caller without rewinding the pointer and maybe nulling the contents), or
position counters, etc. Similarly, be sure to pre-initialize anything of
value and not start out with random bits from the stack.

Also if it is about a series of calls - are there some (loop?) conditions
between the calls that might just preclude them from being called in the
first place?

Old-school tracing with debug printouts is good in very many cases;
otherwise it can really help to stage a run in an IDE with a debugger.
Cross-platform wise, I've had consistently good experience with NetBeans
(installing the C/C++ plugin from the NB 8.2 archive after every NB upgrade
is a PITA though); VSCode also worked (at least when I drilled into NUT for
Windows builds with MSYS2) - hints on both are in NUT docs.

Hope this helps,
Jim Klimov



On Tue, Oct 22, 2024 at 5:01?AM William R. Elliot <bill at wreassoc.com>
wrote:
> Hello all,
>
> In my new driver I have a function that searches for the position of
> a known substring in a delimited string. I am trying to populate a
> series of integer variables with the position value of various
> substrings. The first call to the function performs correctly but the
> remaining calls in the code series are not being executed (there are
> six more calls after the first successful one). Any ideas why only
> the first call is being done?
>
> Similarly, I have another function that takes a position variable and
> pulls the data in the nth position from a delimited string. There is
> also a series of these called in a row and only the first is being called.
>
> Any ideas on what to look for would be appreciated.
>
> Thanks,
>
> Bill
>
>
>
> --
> This email has been checked for viruses by AVG antivirus software.
> www.avg.com
>
> _______________________________________________
> Nut-upsdev mailing list
> Nut-upsdev at alioth-lists.debian.net
> https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/nut-upsdev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://alioth-lists.debian.net/pipermail/nut-upsdev/attachments/20241022/1ca4bf67/attachment.htm>