Mercurial > octave
view libinterp/corefcn/nproc.cc @ 21196:bd96c2efd4fe
move include statements for OpenGL headers to a single file
* oct-opengl.h: New file.
* libinterp/corefcn/module.mk: Update.
* Canvas.cc, gl-select.cc, gl-select.h, gl-render.cc, gl-render.h,
gl2ps-renderer.cc, __init_fltk__.cc, __osmesa_print__.cc:
Update include statements.
author | John W. Eaton <jwe@octave.org> |
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date | Thu, 04 Feb 2016 16:56:02 -0500 |
parents | b17fda023ca6 |
children | fcac5dbbf9ed |
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/* Copyright (C) 2012-2015 Iain Murray 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 <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include "defun.h" #include "nproc.h" DEFUN (nproc, args, , "-*- texinfo -*-\n\ @deftypefn {} {} nproc ()\n\ @deftypefnx {} {} nproc (@var{query})\n\ Return the current number of available processors.\n\ \n\ If called with the optional argument @var{query}, modify how processors\n\ are counted as follows:\n\ \n\ @table @code\n\ @item all\n\ total number of processors.\n\ \n\ @item current\n\ processors available to the current process.\n\ \n\ @item overridable\n\ same as @code{current}, but overridable through the @w{@env{OMP_NUM_THREADS}}\n\ environment variable.\n\ @end table\n\ @end deftypefn") { int nargin = args.length (); if (nargin > 1) print_usage (); nproc_query query = NPROC_CURRENT; if (nargin == 1) { std::string arg = args(0).string_value (); std::transform (arg.begin (), arg.end (), arg.begin (), tolower); if (arg == "all") query = NPROC_ALL; else if (arg == "current") query = NPROC_CURRENT; else if (arg == "overridable") query = NPROC_CURRENT_OVERRIDABLE; else error ("nproc: invalid value for QUERY"); } return ovl (num_processors (query)); } /* ## Must always report at least 1 cpu available %!assert (nproc () >= 1); %!assert (nproc ("all") >= 1); %!assert (nproc ("current") >= 1); %!test %! c = nproc ("current"); %! unwind_protect %! old_val = getenv ("OMP_NUM_THREADS"); %! new_val = c + 1; %! setenv ("OMP_NUM_THREADS", num2str (new_val)); %! assert (nproc ("overridable"), new_val); %! unwind_protect_cleanup %! if (! isempty (old_val)) %! setenv ("OMP_NUM_THREADS", old_val); %! else %! unsetenv ("OMP_NUM_THREADS"); %! endif %! end_unwind_protect %!error nproc ("no_valid_option"); */