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54e9386d | 1 | /* Get system load averages. Mach version. |
2b778ceb | 2 | Copyright (C) 1999-2021 Free Software Foundation, Inc. |
54e9386d RM |
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 | |
41bdb6e2 AJ |
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. | |
54e9386d RM |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
54e9386d | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
54e9386d RM |
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) | |
96e26332 | 50 | loadavg[i] = (double) info.avenrun[i] / (double) LOAD_SCALE; |
54e9386d RM |
51 | |
52 | return i; | |
53 | } |