| /* Get system load averages. Mach version. |
| Copyright (C) 1999-2014 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; |
| } |