nproc-wrapper.c

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/*

Copyright (C) 2016-2018 John W. Eaton

This file is part of Octave.

Octave is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Octave 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING.  If not, see
<https://www.gnu.org/licenses/>.

*/

// num_processors is provided by gnulib.  We don't include gnulib
// headers directly in Octave's C++ source files to avoid problems that
// may be caused by the way that gnulib overrides standard library
// functions.

#if defined (HAVE_CONFIG_H)
#  include "config.h"
#endif

#include "nproc.h"

#include "nproc-wrapper.h"

unsigned long int
octave_num_processors_wrapper (enum octave_nproc_query octave_query)
{
  enum nproc_query query = NPROC_CURRENT;

  switch (octave_query)
    {
    case OCTAVE_NPROC_ALL:
      query = NPROC_ALL;
      break;

    case OCTAVE_NPROC_CURRENT:
      query = NPROC_CURRENT;
      break;

    case OCTAVE_NPROC_CURRENT_OVERRIDABLE:
      query = NPROC_CURRENT_OVERRIDABLE;
      break;
    }

  return num_processors (query);
}