os.c revision 499b34cea04a46823d003d4c0520c8b03e8513cb
/*
* Copyright (C) 2000, 2001 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: os.c,v 1.8 2001/01/09 21:58:26 bwelling Exp $ */
#include <config.h>
#ifdef HAVE_SYSCONF
#include <unistd.h>
static inline long
sysconf_ncpus(void) {
#if defined(_SC_NPROCESSORS_ONLN)
return sysconf((_SC_NPROCESSORS_ONLN));
#elif defined(_SC_NPROC_ONLN)
return sysconf((_SC_NPROC_ONLN));
#endif
return (0);
}
#endif /* HAVE_SYSCONF */
#ifdef __hpux
static inline int
hpux_ncpus(void) {
struct pst_dynamic psd;
return (psd.psd_proc_cnt);
else
return (0);
}
#endif /* __hpux */
unsigned int
isc_os_ncpus(void) {
long ncpus = 0;
#ifdef __hpux
ncpus = hpux_ncpus();
#elif defined(HAVE_SYSCONF)
ncpus = sysconf_ncpus();
#endif
if (ncpus <= 0)
ncpus = 1;
return ((unsigned int)ncpus);
}