Re: can't output strings array with gensub

[haquin <haquin@ganil.fr>]

Thank you Matthieu, for your solution, I've just tried it.


Eric,
In my genSub, I will analyse the bits of a Defect word, and translate 
each bit field in a string, then I output an array where the strings are 
available for operator display.

Implementation with several mbbi records cannot fulfill all my needs, so 
I do the analysis with genSub.

All this to explain I am not concatenating several mesages so your 
proposal is not adequate, thanks anyway.

However, don't hesitate if you have any other suggestion of implementation.

Best Regards.

 Eric Norum a écrit :
> Are you trying to just send and print the concatenated error message 
> strings?
> Perhaps something like this is adequate?
>     FTVN: CHAR
>     NOVN: 120
>
>
>
>     int nleft = precord->novn;
>     char *np = (char *)precord-:>valn;
>     int n;
>
>     n = epicsSnprintf(np, nleft, "Defect string 1. ");
>     nleft -= n;
>     np += n;
>     .
>     .
>     n = epicsSnprintf(np, nleft, "Defect string 2.  ");
>     nleft -= n;
>     np += n;
>     .
>     .
>     .
>        
>
> haquin wrote:
> > Hi all,
> > I have configured a gensub record to output a string array but this 
> > doesn't work.
> > I set the following genSub fields:
> > FTVN:STRING
> > NOVN:12
> > in my process function I do the following:
> >  sprintf ((char*)precord->valn, "Defect String 1");
> >  sprintf ( (char*)(((char**)(precord->valn))+1), "Defect String 2");
> > When I execute the IOC, the output is the following:
> > epics> dbgf IOCASTE-TST:ProcessDynamicModbusTable.VALN
> > DBR_STRING:          DefeDefect String 2
> > the second string has overwritten the first one.
> > It seems that there only one string
> > thanks in advance for your help.
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