Re: How to properly Ending a background program

Hi Patrik,

%SHTDN is just a bif to replace the SHTDN op code, which sets an indicator:

"The SHTDN operation allows the programmer to determine whether the system operator has requested
shutdown. If the system operator has requested shutdown, the resulting indicator specified in positions
71 and 72 is set on. Positions 71 and 72 must contain one of the following indicators: 01 through 99, L1
through L9, U1 through U8, H1 through H9, LR, or RT."

The SHTDN opcode has been around for a long time.

--
*Peter Dow* /
Dow Software Services, Inc.
909 793-9050
petercdow@xxxxxxxxx <mailto:petercdow@xxxxxxxxx>
pdow@xxxxxxxxxxxxxx <mailto:pdow@xxxxxxxxxxxxxx> /

On 7/3/2020 7:24 AM, Patrik Schindler wrote:

Hello Folks,

Am 25.06.2020 um 22:03 schrieb Patrik Schindler <poc@xxxxxxxxxx>:

Thanks for any pointers to further documentation, or a short explanation.

Thank you for all your valuable input!

@Alan, @Carel, @Jon: *DTAQ adds more complexity than I want.

@Paul, @Charles: %SHTDN is a very nice one, I'll keep this in mind for newer projects. Unfortunately, it's not available with V4. Yes, I know, I wasn't mentioning this in my initial post. :-)

@Charles: ON-EXIT is a really nice one, I know that exit handler thing from C. Good to know that it's available in RPG, also (but not in V4, as I checked).

@Niels: I expected signals to work "as usual" in C. My question was regarding ILE RPG.

@Thomas: I guess RTVJOBA value ENDSTS works with V4, so this sounds like a favourite to me.

@Scott, thanks for this implicit mentioning of SIGTERM. Do you have some pointers to more information about this facility regarding ILE and RPG (not PASE!)? I know it from Linux programming, and I like it for "no polling needed". Additional: pwrdwnsys/endsbs *immed (as opposed to *cntld) does what to the processes? Kill -9?

Thanks again, folks!

:wq! PoC

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