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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 <stdlib.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/loadavg.h>
#include <sys/types.h>
#include <sys/sysctl.h>
static const unsigned long _glibtop_sysdeps_loadavg =
(1L << GLIBTOP_LOADAVG_LOADAVG);
static const unsigned long _glibtop_sysdeps_last_pid =
(1L << GLIBTOP_LOADAVG_LAST_PID);
/* Init function. */
void
glibtop_init_loadavg_s (glibtop *server)
{
server->sysdeps.loadavg = _glibtop_sysdeps_loadavg |
_glibtop_sysdeps_last_pid;
}
/* Provides load averange. */
void
glibtop_get_loadavg_s (glibtop *server, glibtop_loadavg *buf)
{
double ldavg[3];
pid_t last_pid;
size_t len;
int i;
glibtop_init_s (&server, GLIBTOP_SYSDEPS_LOADAVG, 0);
memset (buf, 0, sizeof (glibtop_loadavg));
getloadavg (ldavg, 3);
/* fill in the struct */
buf->flags = _glibtop_sysdeps_loadavg;
for (i = 0; i < 3; i++) {
buf->loadavg [i] = ldavg [i];
} /* end for */
len = sizeof (last_pid);
if (sysctlbyname ("kern.lastpid", &last_pid, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.lastpid)");
return;
}
buf->last_pid = last_pid;
buf->flags |= _glibtop_sysdeps_last_pid;
}
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