1 | /* Get system load averages. Mach version. |
2 | Copyright (C) 1999-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <mach.h> |
20 | #include <mach/host_info.h> |
21 | #include <hurd.h> |
22 | #include <errno.h> |
23 | #include <unistd.h> |
24 | #include <stdlib.h> |
25 | |
26 | |
27 | /* Put the 1 minute, 5 minute and 15 minute load averages |
28 | into the first NELEM elements of LOADAVG. |
29 | Return the number written (never more than 3, but may be less than NELEM), |
30 | or -1 if an error occurred. */ |
31 | |
32 | int |
33 | getloadavg (double loadavg[], int nelem) |
34 | { |
35 | host_load_info_data_t info; |
36 | mach_msg_type_number_t size = HOST_LOAD_INFO_COUNT; |
37 | error_t err; |
38 | int i; |
39 | |
40 | err = __host_info (__mach_host_self (), HOST_LOAD_INFO, |
41 | (host_info_t) &info, &size); |
42 | if (err) |
43 | return __hurd_fail (err); |
44 | if (size < HOST_LOAD_INFO_COUNT) |
45 | return __hurd_fail (EGRATUITOUS); |
46 | |
47 | if (nelem > 3) |
48 | nelem = 3; |
49 | for (i = 0; i < nelem; ++i) |
50 | loadavg[i] = (double) info.avenrun[i] / (double) LOAD_SCALE; |
51 | |
52 | return i; |
53 | } |
54 | |