| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* System dependent pieces of sysconf; Mach version |
| 2 | Copyright (C) 1996-2015 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 | <http://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 | weak_alias (__get_nprocs_conf, get_nprocs_conf) |
| 43 | |
| 44 | /* Return the number of processors currently available on the system. */ |
| 45 | int |
| 46 | __get_nprocs (void) |
| 47 | { |
| 48 | struct host_basic_info hbi; |
| 49 | kern_return_t err; |
| 50 | mach_msg_type_number_t cnt = HOST_BASIC_INFO_COUNT; |
| 51 | |
| 52 | err = __host_info (__mach_host_self (), HOST_BASIC_INFO, |
| 53 | (host_info_t) &hbi, &cnt); |
| 54 | if (err) |
| 55 | return __hurd_fail (err); |
| 56 | else if (cnt != HOST_BASIC_INFO_COUNT) |
| 57 | return __hurd_fail (EIEIO); |
| 58 | |
| 59 | return hbi.avail_cpus; |
| 60 | } |
| 61 | weak_alias (__get_nprocs, get_nprocs) |
| 62 | |
| 63 | /* Return the number of physical pages on the system. */ |
| 64 | long int |
| 65 | __get_phys_pages (void) |
| 66 | { |
| 67 | struct host_basic_info hbi; |
| 68 | kern_return_t err; |
| 69 | mach_msg_type_number_t cnt = HOST_BASIC_INFO_COUNT; |
| 70 | |
| 71 | err = __host_info (__mach_host_self (), HOST_BASIC_INFO, |
| 72 | (host_info_t) &hbi, &cnt); |
| 73 | if (err) |
| 74 | return __hurd_fail (err); |
| 75 | else if (cnt != HOST_BASIC_INFO_COUNT) |
| 76 | return __hurd_fail (EIEIO); |
| 77 | |
| 78 | return hbi.memory_size / __vm_page_size; |
| 79 | } |
| 80 | weak_alias (__get_phys_pages, get_phys_pages) |
| 81 | |
| 82 | /* Return the number of available physical pages */ |
| 83 | long int |
| 84 | __get_avphys_pages (void) |
| 85 | { |
| 86 | vm_statistics_data_t vs; |
| 87 | kern_return_t err; |
| 88 | |
| 89 | #ifdef HOST_VM_INFO |
| 90 | { |
| 91 | mach_msg_type_number_t count = HOST_VM_INFO_COUNT; |
| 92 | err = __host_info (__mach_host_self (), HOST_VM_INFO, |
| 93 | (host_info_t) &vs, &count); |
| 94 | if (!err && count < HOST_VM_INFO_COUNT) |
| 95 | err = EGRATUITOUS; |
| 96 | } |
| 97 | #else |
| 98 | err = __vm_statistics (__mach_task_self (), &vs); |
| 99 | #endif |
| 100 | if (err) |
| 101 | return __hurd_fail (err); |
| 102 | |
| 103 | return vs.free_count; |
| 104 | } |
| 105 | weak_alias (__get_avphys_pages, get_avphys_pages) |