Yannick Bergeron <[EMAIL PROTECTED]> writes:
>I'm trying to write a module for an AIX structure named procinfo. This
>structure
>is different if we run AIX with a 32bit kernel or with a 64bit kernel
>
>the xs parser doesn't seem to like ifdef. How can I declarer the same
>subroutine
>for 32 bits and 64 bits?
I suspect it isn't only the #if that is the problem but the blank line(s).
xsubpp processes things in "paragraphs".
#ifdef is ok in the C part (before the MODULE line)
so put the #if there:
-------------------------------
static IV my_pi_pid(struct procsinfo proc)
{
#ifdef __64BIT__
return (IV) proc.pi_pid;
#else
return (IV) proc.pi_pid;
#endif
}
MODULE AIX::Procinfo::procsinfo PACKAGE = AIX::Procinfo::procsinfo PREFIX = my_
IV pi_pid(struct procsinfo proc)
-------------------------------
That said as the only difference is the return type, and both are
presumably going to end up as an IV anyway
-------------------------------
#define my_pi_pid(proc) ((IV)proc.pi_pid)
MODULE AIX::Procinfo::procsinfo PACKAGE = AIX::Procinfo::procsinfo PREFIX = my_
IV pi_pid(struct procsinfo proc)
-------------------------------
Should suffice.
>
>example:
>
>#include <procinfo.h>
>
>#include "EXTERN.h"
>#include "perl.h"
>#include "XSUB.h"
>
>MODULE = AIX::Procinfo::procsinfo PACKAGE = AIX::Procinfo::procsinfo
>
>#ifdef __64BIT__
>pid_t
>pi_pid(struct procsinfo proc)
> CODE:
> /* process ID */
> RETVAL = proc.pi_pid;
>
> OUTPUT:
> RETVAL
>#else /* __64BIT__ */
>unsigned long
>pi_pid(struct procsinfo proc)
> CODE:
> /* process ID */
> RETVAL = proc.pi_pid;
> OUTPUT:
> RETVAL
>#endif /* __64BIT__ */
