1 | /* System dependent pieces of sysconf; Mach version |
2 | Copyright (C) 1996-2024 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 <errno.h> |
20 | #include <mach.h> |
21 | #include <hurd.h> |
22 | #include <sys/sysinfo.h> |
23 | |
24 | |
25 | /* Return the number of processors configured on the system. */ |
26 | int |
27 | __get_nprocs_conf (void) |
28 | { |
29 | struct host_basic_info hbi; |
30 | kern_return_t err; |
31 | mach_msg_type_number_t cnt = HOST_BASIC_INFO_COUNT; |
32 | |
33 | err = __host_info (__mach_host_self (), HOST_BASIC_INFO, |
34 | (host_info_t) &hbi, &cnt); |
35 | if (err) |
36 | return __hurd_fail (err); |
37 | else if (cnt != HOST_BASIC_INFO_COUNT) |
38 | return __hurd_fail (EIEIO); |
39 | |
40 | return hbi.max_cpus; |
41 | } |
42 | libc_hidden_def (__get_nprocs_conf) |
43 | weak_alias (__get_nprocs_conf, get_nprocs_conf) |
44 | |
45 | /* Return the number of processors currently available on the system. */ |
46 | int |
47 | __get_nprocs (void) |
48 | { |
49 | struct host_basic_info hbi; |
50 | kern_return_t err; |
51 | mach_msg_type_number_t cnt = HOST_BASIC_INFO_COUNT; |
52 | |
53 | err = __host_info (__mach_host_self (), HOST_BASIC_INFO, |
54 | (host_info_t) &hbi, &cnt); |
55 | if (err) |
56 | return __hurd_fail (err); |
57 | else if (cnt != HOST_BASIC_INFO_COUNT) |
58 | return __hurd_fail (EIEIO); |
59 | |
60 | return hbi.avail_cpus; |
61 | } |
62 | libc_hidden_def (__get_nprocs) |
63 | weak_alias (__get_nprocs, get_nprocs) |
64 | |
65 | /* Return the number of physical pages on the system. */ |
66 | long int |
67 | __get_phys_pages (void) |
68 | { |
69 | struct host_basic_info hbi; |
70 | kern_return_t err; |
71 | mach_msg_type_number_t cnt = HOST_BASIC_INFO_COUNT; |
72 | |
73 | err = __host_info (__mach_host_self (), HOST_BASIC_INFO, |
74 | (host_info_t) &hbi, &cnt); |
75 | if (err) |
76 | return __hurd_fail (err); |
77 | else if (cnt != HOST_BASIC_INFO_COUNT) |
78 | return __hurd_fail (EIEIO); |
79 | |
80 | return hbi.memory_size / __vm_page_size; |
81 | } |
82 | libc_hidden_def (__get_phys_pages) |
83 | weak_alias (__get_phys_pages, get_phys_pages) |
84 | |
85 | /* Return the number of available physical pages */ |
86 | long int |
87 | __get_avphys_pages (void) |
88 | { |
89 | vm_statistics_data_t vs; |
90 | kern_return_t err; |
91 | |
92 | #ifdef HOST_VM_INFO |
93 | { |
94 | mach_msg_type_number_t count = HOST_VM_INFO_COUNT; |
95 | err = __host_info (__mach_host_self (), HOST_VM_INFO, |
96 | (host_info_t) &vs, &count); |
97 | if (!err && count < HOST_VM_INFO_COUNT) |
98 | err = EGRATUITOUS; |
99 | } |
100 | #else |
101 | err = __vm_statistics (__mach_task_self (), &vs); |
102 | #endif |
103 | if (err) |
104 | return __hurd_fail (err); |
105 | |
106 | return vs.free_count; |
107 | } |
108 | libc_hidden_def (__get_avphys_pages) |
109 | weak_alias (__get_avphys_pages, get_avphys_pages) |
110 | |