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Undo most of last change.

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Use sysmp instead, since it provides a cleaner interface.
This commit is contained in:
Jim Meyering 2003-02-17 16:58:28 +00:00
parent 3f4e77fdd6
commit 22e376e2e1
1 changed files with 27 additions and 41 deletions
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68
lib/physmem.c
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@ -15,7 +15,7 @@
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert and Jim Meyering. */
/* Written by Paul Eggert. */
#if HAVE_CONFIG_H
# include <config.h>
@ -31,44 +31,8 @@
# include <sys/pstat.h>
#endif
#if HAVE_SYSGET && HAVE_SYS_SYSGET_H && HAVE_SYS_SYSINFO_H
# include <sys/types.h>
# include <sys/sysget.h>
# include <sys/sysinfo.h>
# if defined SGT_COOKIE_INIT && defined SGT_NODE_INFO && defined SGT_READ
# define IRIX_SYSGET_TOTAL \
do { double t; if (irix_sysget (&t, NULL) == 0) return t; } while (0)
# define IRIX_SYSGET_AVAILABLE \
do { double f; if (irix_sysget (NULL, &f) == 0) return f; } while (0)
/* If TOTAL is non-NULL, set *TOTAL to the number of bytes of physical memory.
If AVAIL is non-NULL, set *AVAIL to the number of bytes of available memory.
Return nonzero immediately if sysget fails.
Otherwise, set the requested value(s) and return zero. */
static int
irix_sysget (double *total, double *avail)
{
nodeinfo_t buf;
sgt_cookie_t cookie;
SGT_COOKIE_INIT (&cookie);
if (sysget (SGT_NODE_INFO, (char *) &buf, sizeof buf, SGT_READ, &cookie)
!= sizeof buf)
return 1;
if (total)
*total = buf.totalmem;
if (avail)
*avail = buf.freemem;
return 0;
}
# endif
#endif
#ifndef IRIX_SYSGET_TOTAL
# define IRIX_SYSGET_TOTAL
# define IRIX_SYSGET_AVAILABLE
#if HAVE_SYS_SYSMP_H
# include <sys/sysmp.h>
#endif
/* Return the total amount of physical memory. */
@ -97,7 +61,18 @@ physmem_total (void)
}
#endif
IRIX_SYSGET_TOTAL;
#if defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE
{ /* This works on irix6. */
struct rminfo realmem;
if (sysmp (MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0)
{
double pagesize = sysconf (_SC_PAGESIZE);
double pages = realmem.physmem;
if (0 <= pages && 0 <= pagesize)
return pages * pagesize;
}
}
#endif
/* Guess 64 MB. It's probably an older host, so guess small. */
return 64 * 1024 * 1024;
@ -131,7 +106,18 @@ physmem_available (void)
}
#endif
IRIX_SYSGET_AVAILABLE;
#if defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE
{ /* This works on irix6. */
struct rminfo realmem;
if (sysmp (MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0)
{
double pagesize = sysconf (_SC_PAGESIZE);
double pages = realmem.availrmem;
if (0 <= pages && 0 <= pagesize)
return pages * pagesize;
}
}
#endif
/* Guess 25% of physical memory. */
return physmem_total () / 4;