c84923132a
1998-06-07 Martin Baulig <martin@home-of-linux.org> * *.[ch]: Using single underscore instead of two underscores for function prefixes (regexp: ``s,__([rspl])\b,_$1,g'') to avoid ambiguity with mangled C++ names.
89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
/* $Id$ */
|
|
|
|
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
|
|
This file is part of the Gnome Top Library.
|
|
Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
|
|
|
|
The Gnome Top Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The Gnome Top Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <config.h>
|
|
#include <glibtop/mem.h>
|
|
|
|
static const unsigned long _glibtop_sysdeps_mem =
|
|
(1 << GLIBTOP_MEM_TOTAL) + (1 << GLIBTOP_MEM_USED) +
|
|
(1 << GLIBTOP_MEM_FREE) + (1 << GLIBTOP_MEM_LOCKED);
|
|
|
|
/* define pagetok in terms of pageshift */
|
|
|
|
#define pagetok(size) ((size) << server->machine.pageshift)
|
|
|
|
/* Provides information about memory usage. */
|
|
|
|
void
|
|
glibtop_get_mem_p (glibtop *server, glibtop_mem *buf)
|
|
{
|
|
glibtop_init_r (&server, 0, 0);
|
|
|
|
memset (buf, 0, sizeof (glibtop_mem));
|
|
|
|
/* !!! THE FOLLOWING CODE RUNS SGID KMEM - CHANGE WITH CAUTION !!! */
|
|
|
|
setregid (server->machine.gid, server->machine.egid);
|
|
|
|
/* get the array of physpage descriptors */
|
|
|
|
(void) _glibtop_getkval (server, server->machine.pages,
|
|
(int *) server->machine.physpage,
|
|
server->machine.bytesize,
|
|
"array _page");
|
|
|
|
if (setregid (server->machine.egid, server->machine.gid))
|
|
_exit (1);
|
|
|
|
/* !!! END OF SGID KMEM PART !!! */
|
|
|
|
|
|
{ /* sum memory statistics */
|
|
register struct page *pp;
|
|
register int cnt;
|
|
register int inuse;
|
|
register int free;
|
|
register int locked;
|
|
|
|
/* bop thru the array counting page types */
|
|
|
|
pp = server->machine.physpage;
|
|
inuse = free = locked = 0;
|
|
for (cnt = server->machine.count; --cnt >= 0; pp++) {
|
|
if (pp->p_free)
|
|
free++;
|
|
else if (pp->p_lock || pp->p_keepcnt > 0)
|
|
locked++;
|
|
else
|
|
inuse++;
|
|
}
|
|
|
|
/* convert memory stats to Kbytes */
|
|
|
|
buf->total = pagetok (inuse + free);
|
|
buf->used = pagetok (inuse);
|
|
buf->free = pagetok (free);
|
|
buf->locked = pagetok (locked);
|
|
|
|
buf->flags = _glibtop_sysdeps_mem;
|
|
}
|
|
}
|