glibc/sysdeps/mach/getloadavg.c
Andreas Jaeger 41bdb6e20c Update to LGPL v2.1.
2001-07-06  Paul Eggert  <eggert@twinsun.com>

	* manual/argp.texi: Remove ignored LGPL copyright notice; it's
	not appropriate for documentation anyway.
	* manual/libc-texinfo.sh: "Library General Public License" ->
	"Lesser General Public License".

2001-07-06  Andreas Jaeger  <aj@suse.de>

	* All files under GPL/LGPL version 2: Place under LGPL version
	2.1.
2001-07-06 04:58:11 +00:00

55 lines
1.7 KiB
C

/* Get system load averages. Mach version.
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <mach.h>
#include <mach/host_info.h>
#include <hurd.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
/* Put the 1 minute, 5 minute and 15 minute load averages
into the first NELEM elements of LOADAVG.
Return the number written (never more than 3, but may be less than NELEM),
or -1 if an error occurred. */
int
getloadavg (double loadavg[], int nelem)
{
host_load_info_data_t info;
mach_msg_type_number_t size = HOST_LOAD_INFO_COUNT;
error_t err;
int i;
err = __host_info (__mach_host_self (), HOST_LOAD_INFO,
(host_info_t) &info, &size);
if (err)
return __hurd_fail (err);
if (size < HOST_LOAD_INFO_COUNT)
return __hurd_fail (EGRATUITOUS);
if (nelem > 3)
nelem = 3;
for (i = 0; i < nelem; ++i)
loadavg[i] = (double) info.avenrun[i] / (double) LOAD_SCALE;
return i;
}