Re: Check existence of data area in ILE C

[Jevgeni Astanovski <jevgeniast@xxxxxxxxx>]

I use a function Check_DAARA before calling RTVDTAARA:

int Check_DTAARA(char *dtaname, char *dtalib)
{
  _SYSPTR p;
  volatile _INTRPT_Hndlr_Parms_T ca; /* communications area */

  #pragma exception_handler(ERROR_OCCURED, ca, 0, _C2_MH_ESCAPE, \
                            _CTLA_HANDLE, "MCH3401")

  p = rslvsp(WLI_DTAARA, dtaname, dtalib, 0x0190);
  return 0;

  ERROR_OCCURED:
  return -1;
}

Returns 0 if data area exists, otherwise -1.
Requires some includes.
Can be used as a generic exception handler.
It is actually made of an example in one of the manuals (ILE/C
programmers's guide or alike).

Jevgeni.


On Mon, Dec 15, 2014 at 6:52 PM, Zvi Kave <zvi.kave@xxxxxxxxxx> wrote:
>    My ILE C program crashes in the line of QXXRTVDA if data does not exist.
>    Is there a way to avoid this crash ?
>    Someone has an example code for this?
>
>    The line is like this:
>    QXXRTVDA(dta, 41, 5, user_dta);
>    and I got program crash with the message:
>     "Data area DTA in QGPL not found."
>
>    If data area dta exists, it works fine.
>
>    Regards,
>
>    Zvi
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