summaryrefslogtreecommitdiff
path: root/sysdeps/mach/getsysstats.c
blob: cc28f57c77c763c07fb6b55af846e8aa44d45204 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
/* System dependent pieces of sysconf; Mach version
   Copyright (C) 1996-2013 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 <errno.h>
#include <mach.h>
#include <hurd.h>
#include <sys/sysinfo.h>


/* Return the number of processors configured on the system. */
int
__get_nprocs_conf ()
{
  struct host_basic_info hbi;
  kern_return_t err;
  mach_msg_type_number_t cnt = HOST_BASIC_INFO_COUNT;

  err = __host_info (__mach_host_self (), HOST_BASIC_INFO,
		     (host_info_t) &hbi, &cnt);
  if (err)
    return __hurd_fail (err);
  else if (cnt != HOST_BASIC_INFO_COUNT)
    return __hurd_fail (EIEIO);

  return hbi.max_cpus;
}
weak_alias (__get_nprocs_conf, get_nprocs_conf)

/* Return the number of processors currently available on the system. */
int
__get_nprocs ()
{
  struct host_basic_info hbi;
  kern_return_t err;
  mach_msg_type_number_t cnt = HOST_BASIC_INFO_COUNT;

  err = __host_info (__mach_host_self (), HOST_BASIC_INFO,
		     (host_info_t) &hbi, &cnt);
  if (err)
    return __hurd_fail (err);
  else if (cnt != HOST_BASIC_INFO_COUNT)
    return __hurd_fail (EIEIO);

  return hbi.avail_cpus;
}
weak_alias (__get_nprocs, get_nprocs)

/* Return the number of physical pages on the system. */
long int
__get_phys_pages ()
{
  struct host_basic_info hbi;
  kern_return_t err;
  mach_msg_type_number_t cnt = HOST_BASIC_INFO_COUNT;

  err = __host_info (__mach_host_self (), HOST_BASIC_INFO,
		     (host_info_t) &hbi, &cnt);
  if (err)
    return __hurd_fail (err);
  else if (cnt != HOST_BASIC_INFO_COUNT)
    return __hurd_fail (EIEIO);

  return hbi.memory_size / __vm_page_size;
}
weak_alias (__get_phys_pages, get_phys_pages)

/* Return the number of available physical pages */
long int
__get_avphys_pages ()
{
  vm_statistics_data_t vs;
  kern_return_t err;

#ifdef HOST_VM_INFO
  {
    mach_msg_type_number_t count = HOST_VM_INFO_COUNT;
    err = __host_info (__mach_host_self (), HOST_VM_INFO,
		       (host_info_t) &vs, &count);
    if (!err && count < HOST_VM_INFO_COUNT)
      err = EGRATUITOUS;
  }
#else
  err = __vm_statistics (__mach_task_self (), &vs);
#endif
  if (err)
    return __hurd_fail (err);

  return vs.free_count;
}
weak_alias (__get_avphys_pages, get_avphys_pages)