Re: DLYJOB in RPG

["Andy Hautamaki" <ahautamaki@xxxxxxxxxxxxxxx>]

Thanks Scott, this is great. (More methods then I'd realized)

Thanks to everyone else who took the time to reply.

Andy


----- Original Message -----
From: "Scott Klement" <klemscot@xxxxxxxxxxxx>
To: "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
Sent: Wednesday, February 26, 2003 4:18 PM
Subject: Re: DLYJOB in RPG


>
> On Wed, 26 Feb 2003, Andy Hautamaki wrote:
> >
> > I have a series of batch jobs that if they get a record lock on update
will
> > call a CLP program and pass it how long to do a DLYJOB and then after
the
> > 'Delay' my RPG programs will try to retrieve the record again.
> >
>
> Well... you could just do OVRDBF FILE(MYFILE) WAITRCD(xxx), and not have
> to do a delay at all...  (Unless I don't understand your question
> correctly)
>
> > My question is, instead of doing this 'DLYJOB' from a CLP can it be done
> > directly from within RPG? ........ API maybe????
> >
>
> If for some reason, you don't want to use the WAITRCD() method above,
> here's a few ways of doing delays in an RPG program.   This is an actual
> program that compiles and runs :)
>
>      H DFTACTGRP(*NO) BNDDIR('QC2LE')
>
>      D QcmdExc         PR                  extpgm('QCMDEXC')
>      D   command                    200A   const
>      D   length                      15P 5 const
>
>      d cmd             s            200A
>      D len             s             15P 5
>
>      D select          PR            10I 0 extproc('select')
>      D   max                         10I 0 value
>      d   read                          *   value
>      d   write                         *   value
>      d   except                        *   value
>      d   timeout                       *   value
>
>      D tv              ds
>      D   tv_sec                      10I 0
>      D   tv_usec                     10I 0
>
>      D sleep           PR            10U 0 extproc('sleep')
>      D   seconds                     10U 0 value
>
>      D usleep          PR            10I 0 extproc('usleep')
>      D   microsecs                   10U 0 value
>
>       *
>       * QcmdExc can run just about any command that you
>       * can type from the command-line, including DLYJOB
>       *
>      c     'one'         dsply
>      c                   callp     QcmdExc('DLYJOB DLY(1)': 200)
>
>       *
>       * Or, if you're feeling nostalgic, here's another way to
>       * call QCMDEXC
>       *
>      c     'two'         dsply
>      c                   eval      cmd = 'DLYJOB DLY(1)'
>      c                   eval      len = 200
>
>      c                   call      'QCMDEXC'
>      c                   parm                    cmd
>      c                   parm                    len
>
>       *
>       * Another exciting way would be to use the select() API.
>       * This has the advantage that you can wait for strange time
>       * values... such as 1.8 seconds...
>       *
>      c     'three'       dsply
>      c                   eval      tv_sec = 1
>      c                   eval      tv_usec = 800000
>      c                   callp     select(0: *NULL: *NULL: *NULL:
%addr(tv))
>
>       *
>       *  Then, there's the ILE C runtime  (requires BNDDIR('QC2LE'))
>       *
>      c     'four'        dsply
>      c                   callp     sleep(1)
>
>       *
>       *  Or, the ILE C runtime that can do things in microseconds
>       *    (also requires BNDDIR('QC2LE'))
>       *
>      c     'five'        dsply
>      c                   callp     usleep(1000000)
>
>      c                   eval      *inlr = *on
>
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