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/* Copyright (C) 1998-99 Martin Baulig
This file is part of LibGTop 1.0.
Contributed by Martin Baulig <martin@home-of-linux.org>, April 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 <unistd.h>
#include <sys/vminfo.h>
#include <glibtop.h>
#include <glibtop/error.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);
/* Init function. */
void
_glibtop_init_mem_s (glibtop *server)
{
server->sysdeps.mem = _glibtop_sysdeps_mem;
}
/* Provides information about memory usage. */
void
glibtop_get_mem_s (glibtop *server, glibtop_mem *buf)
{
struct vminfo vminfo;
int pagesize;
int result;
glibtop_init_s (&server, (1L << GLIBTOP_SYSDEPS_MEM), 0);
memset (buf, 0, sizeof (glibtop_mem));
pagesize = sysconf(_SC_PAGESIZE);
#ifdef HAVE_VMGETINFO
result = vmgetinfo((void*)&vminfo, VMINFO, sizeof(vminfo));
#else
result = _glibtop_vmgetinfo((void*)&vminfo, VMINFO, sizeof(vminfo));
#endif
if (result == -1)
{
glibtop_error_io_r (server, "Cannot read vminfo");
return;
}
buf->total = vminfo.memsizepgs * pagesize;
buf->used = (vminfo.numwseguse + vminfo.numpseguse +
vminfo.numclseguse) * pagesize;
buf->free = vminfo.numfrb * pagesize;
buf->locked = (vminfo.numwsegpin + vminfo.numpsegpin +
vminfo.numclsegpin) * pagesize;
buf->flags = _glibtop_sysdeps_mem;
}
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