/* System dependent pieces of sysconf; Mach version

   Copyright (C) 1996-2018 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 (void)

{

  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;

}

libc_hidden_def (__get_nprocs_conf)

weak_alias (__get_nprocs_conf, get_nprocs_conf)

/* Return the number of processors currently available on the system. */

int

__get_nprocs (void)

{

  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;

}

libc_hidden_def (__get_nprocs)

weak_alias (__get_nprocs, get_nprocs)

/* Return the number of physical pages on the system. */

long int

__get_phys_pages (void)

{

  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;

}

libc_hidden_def (__get_phys_pages)

weak_alias (__get_phys_pages, get_phys_pages)

/* Return the number of available physical pages */

long int

__get_avphys_pages (void)

{

  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;

}

libc_hidden_def (__get_avphys_pages)

weak_alias (__get_avphys_pages, get_avphys_pages)