Re: lockf() on system i

["Schmidt, Mihael" <Mihael.Schmidt@xxxxxxxxxxx>]

Yes. It would be great to have such software available for all ILE Languages. At last a real template engine for the System i (without the need to use Java and Velocity, which works ... even from RPG , but is not a good way to go, though Velocity is a great template engine).

Mihael 

-----Ursprüngliche Nachricht-----
Von: c400-l-bounces+mihael.schmidt=rossmann.de@xxxxxxxxxxxx [mailto:c400-l-bounces+mihael.schmidt=rossmann.de@xxxxxxxxxxxx] Im Auftrag von Bob Crothers
Gesendet: Donnerstag, 11. Juni 2009 16:59
An: C programming iSeries / AS400
Betreff: Re: [C400-L] lockf() on system i

I cant help you with your lockf issues...but clear silver sure looks
interesting!
Bob Crothers
www.BJsBariatrics.Com
------------------------------------------
"That which we manifest is before us; we are the creators of our own
destiny. Be it through intention or ignorance, our successes and our
failures have been brought on by none other than ourselves"
- Garth Stein (The Art of Racing in the Rain)


On Thu, Jun 11, 2009 at 10:24 AM, Schmidt, Mihael <
Mihael.Schmidt@xxxxxxxxxxx> wrote:

> Hi,
>
> I'm quite new to C especially ILE C and am trying to port a software
> written in C (with target platform Linux/Unix) to ILE C.
>
> The software uses the lockf() function which is available on other
> platforms but not on System i.
>
> The "UNIX C Applications Porting to AS/400 Companion Guide" also points out
> that there are problems but gives a function which should be used for
> lockf().
>
> On most (probably all) systems lockf the following declaration:
> int lockf(int fildes, int function, off_t size);
>
> But the function from the IBM redbook has:
> int lockf(_RFILE *fildes, int function, int size)
>
> Where _RFILE is:
>
> typedef _Packed struct {
>  char                         reserved1[16];
>  volatile void  *const *const in_buf;
>  volatile void  *const *const out_buf;
>  char                         reserved2[48];
>  _RIOFB_T                     riofb;
>  char                         reserved3[32];
>  const unsigned int           buf_length;
>  char                         reserved4[28];
>  volatile char  *const        in_null_map;
>  volatile char  *const        out_null_map;
>  volatile char  *const        null_key_map;
>  char                         reserved5[48];
>  const int                    min_length;
>  short                        null_map_len;
>  short                        null_key_map_len;
>  char                         reserved6[8];
> } _RFILE;
>
> What do I have to do to get these two worlds together ?
>
> For those interested: I try to port the template engine ClearSilver (
> www.clearsilver.net) to ILE C to be able to use it from RPG.
>
> Any ideas?
>
> Thanx in advance
>
> Mihael Schmidt
> Anwendungsentwicklung
>
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