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/* Copyright (C) 1998 Joshua Sled
This file is part of LibGTop 1.0.
Contributed by Joshua Sled <jsled@xcf.berkeley.edu>, July 1998.
LibGTop is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
LibGTop 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 General Public License
for more details.
You should have received a copy of the GNU General Public License
along with LibGTop; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/mem.h>
#include <sys/types.h>
#include <sys/sysctl.h>
static const unsigned long _glibtop_sysdeps_mem =
(1L << GLIBTOP_MEM_TOTAL) + (1L << GLIBTOP_MEM_USED) +
(1L << GLIBTOP_MEM_FREE) + (1L << GLIBTOP_MEM_SHARED) +
(1L << GLIBTOP_MEM_BUFFER) + (1L << GLIBTOP_MEM_CACHED) +
(1L << GLIBTOP_MEM_USER);
/* these are for getting the memory statistics */
static int pagesize;
/* Init function. */
void
glibtop_init_mem_s (glibtop *server)
{
pagesize = getpagesize ();
server->sysdeps.mem = _glibtop_sysdeps_mem;
}
void
glibtop_get_mem_s (glibtop *server, glibtop_mem *buf)
{
gulong memtotal;
guint memused;
gulong buffers;
guint cached;
size_t len;
glibtop_init_s (&server, GLIBTOP_SYSDEPS_MEM, 0);
memset (buf, 0, sizeof *buf);
len = sizeof (memtotal);
if (sysctlbyname ("hw.physmem", &memtotal, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (hw.physmem)");
return;
}
len = sizeof (memused);
if (sysctlbyname ("vm.stats.vm.v_wire_count", &memused, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (vm.stats.vm.v_wire_count)");
return;
}
len = sizeof (cached);
if (sysctlbyname ("vm.stats.vm.v_cache_count", &cached, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (vm.stats.vm.v_cache_count)");
return;
}
buffers = 0;
buf->total = memtotal;
buf->used = (memused * pagesize);
buf->free = (buf->total - buf->used);
buf->shared = 0;
buf->cached = (cached * pagesize);
buf->buffer = buffers;
buf->user = buf->total - buf->free - buf->cached - buf->buffer;
buf->flags = _glibtop_sysdeps_mem;
}
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