mirror of https://github.com/CGAL/cgal
105 lines
3.0 KiB
C++
105 lines
3.0 KiB
C++
// Copyright (c) 2005 INRIA (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you may redistribute it under
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// the terms of the Q Public License version 1.0.
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// See the file LICENSE.QPL distributed with CGAL.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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//
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// Author(s) : Laurent Saboret, Pierre Alliez, Bruno Levy
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#ifndef CGAL_TAUCS_FIX
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#define CGAL_TAUCS_FIX
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// Include TAUCS main header taucs.h
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#ifndef CGAL_INCLUDED_TAUCS_H
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#define CGAL_INCLUDED_TAUCS_H
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// GCC 3.x does not compile if we include complex.h within "extern C {}"
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// and complains that this header is deprecated.
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#if defined(__GNUC__)
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#undef __DEPRECATED
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#include <complex.h>
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#endif
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// taucs.h will define min/max macros if it's not already done (e.g. by Windows.h).
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#ifndef min
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#define CGAL_TAUCS_DEFINES_MIN
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#endif
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#ifndef max
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#define CGAL_TAUCS_DEFINES_MAX
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#endif
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// TAUCS is a C library
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extern "C" {
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#include <taucs.h>
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}
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// Undefine Taucs' min/max macros to avoid an error
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// with std::min()/std::max() calls in standard C++ headers.
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#ifdef CGAL_TAUCS_DEFINES_MIN
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#undef min
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#endif
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#ifdef CGAL_TAUCS_DEFINES_MAX
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#undef max
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#endif
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#endif
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#ifdef OSTYPE_linux
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#include <unistd.h>
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#include <math.h>
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#endif
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extern "C"
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{
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/********************************************************************/
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/* */
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/* FIX OF TAUCS BUGGY FUNCTION taucs_available_memory_size() */
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/* */
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/********************************************************************/
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/* taucs_available_memory_size/cgal_taucs_available_memory_size */
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/* returns size of memory available for allocation */
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inline double cgal_taucs_available_memory_size()
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{
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double m; /* size of memory available for allocation */
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#ifdef OSTYPE_linux
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/* taucs_available_memory_size() is buggy on Linux 2.6 */
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/* It returns only 1% of the actual memory */
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double m_sys; /* size of physical memory */
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m_sys = (double) sysconf(_SC_PAGESIZE);
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m_sys *= (double) sysconf(_SC_PHYS_PAGES);
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/* we limit m by 0.75*m_sys */
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m = floor(0.75 * m_sys);
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#else
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m = taucs_available_memory_size();
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#endif
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taucs_printf("cgal_taucs_available_memory_size returns %lfMB\n", m/1048576.0);
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return m;
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}
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/* Redirect calls to cgal_taucs_available_memory_size() */
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/* to taucs_available_memory_size() */
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#define taucs_available_memory_size cgal_taucs_available_memory_size
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} // extern "C"
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#endif // CGAL_TAUCS_FIX
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