Re: [WEB400] Displaying standard-out

["Simon Coulter" <shc@xxxxxxxxxxxxxxxxx>]

Hello Jon,

You wrote:
>I guess you're right although that change occurred a lot earlier didn't
it?

Well it's first documented in the ILE C Programmer's Guide at VRM420, but
that's doesn't mean it wasn't there under the covers on earlier releases.

>I guess something wasn't switched 'til later.  But I thought that you
>_could_ still issue an OVR to a C program.  Does that not work?  I've not
>had cause to try it.

OVRPRTF STDOUT still works but only if you choose not to use file
descriptor I/O.  The default is to not use file descriptor I/O.  To use
file descriptor based I/O you must set the environment variable
QIBM_USE_DESCRIPTOR_STDIO to "Y".  Full details are provided in the ILE C
Programmer's Guide.

I haven't checked it but I suspect that the HTTP APIs that allow RPG to
handle stdin and stdout use file descriptor I/O hence the failure of the
override.

Interestingly the manual says that if an override is in effect prior to
changing to file descriptor I/O the override will take precedence so there
is still scope for experimentation in order to fully understand the
behaviour.

Regards,
Simon Coulter.
--------------------------------------------------------------------
   FlyByNight Software         AS/400 Technical Specialists
   http://www.flybynight.com.au/

   Phone: +61 3 9419 0175   Mobile: +61 0411 091 400        /"\
   Fax:   +61 3 9419 0175   mailto: shc@flybynight.com.au   \ /
                                                             X
                 ASCII Ribbon campaign against HTML E-Mail  / \
--------------------------------------------------------------------