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/* $Id$ */
/* 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 <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/uptime.h>
#include <glibtop/cpu.h>
#include <glibtop_suid.h>
static const unsigned long _glibtop_sysdeps_uptime =
(1 << GLIBTOP_UPTIME_UPTIME) + (1 << GLIBTOP_UPTIME_IDLETIME);
static const unsigned long _required_cpu_flags =
(1 << GLIBTOP_CPU_TOTAL) + (1 << GLIBTOP_CPU_IDLE) +
(1 << GLIBTOP_CPU_FREQUENCY);
/* Init function. */
void
glibtop_init_uptime_p (glibtop *server)
{
server->sysdeps.uptime = _glibtop_sysdeps_uptime;
}
/* Provides uptime and idle time. */
void
glibtop_get_uptime_p (glibtop *server, glibtop_uptime *buf)
{
glibtop_cpu cpu;
glibtop_init_p (server, (1 << GLIBTOP_SYSDEPS_UPTIME), 0);
memset (buf, 0, sizeof (glibtop_uptime));
/* We simply calculate it from the CPU usage. */
glibtop_get_cpu_p (server, &cpu);
/* Make sure all required fields are present. */
if ((cpu.flags & _required_cpu_flags) != _required_cpu_flags)
return;
/* Calculate values. */
buf->uptime = (double) cpu.total / (double) cpu.frequency;
buf->idletime = (double) cpu.idle / (double) cpu.frequency;
buf->flags = _glibtop_sysdeps_uptime;
}
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