mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 15:20:10 +00:00
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* Get system load averages. Mach version.
|
|
Copyright (C) 1999-2015 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, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#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;
|
|
}
|