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/* Copyright (C) 1998-99 Martin Baulig
   This file is part of LibGTop 1.0.

   Contributed by Martin Baulig <>, 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., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, 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 =

/* Init function. */

_glibtop_init_mem_s (glibtop *server)
	server->sysdeps.mem = _glibtop_sysdeps_mem;

/* Provides information about memory usage. */

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);

	result = vmgetinfo((void*)&vminfo, VMINFO, sizeof(vminfo));
	result = _glibtop_vmgetinfo((void*)&vminfo, VMINFO, sizeof(vminfo));
	if (result == -1)
		glibtop_error_io_r (server, "Cannot read vminfo");

	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;