/*

% Copyright (C) 2007-2016 GraphicsMagick Group

%

% This program is covered by multiple licenses, which are described in

% Copyright.txt. You should have received a copy of Copyright.txt with this

% package; otherwise see http://www.graphicsmagick.org/www/Copyright.html.

%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%                       U   U  N   N  IIIII  X   X                            %

%                       U   U  NN  N    I     X X                             %

%                       U   U  N N N    I      X                              %

%                       U   U  N  NN    I     X X                             %

%                        UUU   N   N  IIIII  X   X                            %

%                                                                             %

%                                                                             %

%                       GraphicsMagick UNIX Methods                           %

%                                                                             %

%                                                                             %

%                             Software Design                                 %

%                             Bob Friesenhahn                                 %

%                                July 2007                                    %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%

*/

/*

  Include declarations.

*/

#include "magick/studio.h"

#include "magick/confirm_access.h"

#if defined(POSIX)

/* some of these may have already been included by studio.h */

#include <stdio.h>

#include <string.h>

#include <sys/types.h>

#include <unistd.h>

#include <errno.h>

#include <sys/wait.h>

#include <sys/types.h>

#include <utime.h>

#include "magick/utility.h"

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   M a g i c k G e t M M U P a g e S i z e                                   %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  MagickGetMMUPageSize() returns the VM pagesize used by the MMU. The VM

%  pagesize is the number of bytes retrieved due to one page fault.

%

%  The format of the MagickGetMMUPageSize method is:

%

%      long MagickGetMMUPageSize()

%

*/

MagickExport long MagickGetMMUPageSize(void)

{

  static long

    pagesize = 0;

  if (pagesize <= 0)

    {

#if defined(HAVE_SYSCONF) && defined(_SC_PAGE_SIZE)

      pagesize=sysconf(_SC_PAGE_SIZE);

#endif /* defined(HAVE_SYSCONF) && defined(_SC_PAGE_SIZE) */

#if defined(HAVE_GETPAGESIZE)

      if (pagesize <= 0)

        pagesize=getpagesize();

#endif /* defined(HAVE_GETPAGESIZE) */

      if (pagesize <= 0)

        pagesize=16384;

    }

  return pagesize;

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   M a g i c k G e t F i l e A t t r i b u t e s                             %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  MagickGetFileAttributes() returns the file attributes for a specified

%  file in a structure of type MagickStatStruct_t.

%

%  The format of the MagickGetFileAttributes method is:

%

%      int MagickGetFileAttributes(const char *filename,

%                                  MagickStatStruct_t *statbuf)

%

%  A description of each parameter follows:

%

%    o filename:  Path to the file

%

%    o statbuf: A structure of type MagickStatStruct_t to populate.

%

%

*/

MagickExport int MagickGetFileAttributes(const char *filename,

                                         MagickStatStruct_t *statbuf)

{

  if (MagickStat(filename, statbuf) != 0)

    return -1;

  return 0;

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   M a g i c k S e t F i l e A t t r i b u t e s                             %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  MagickSetFileAttributes() sets the access and modification time file

%  attributes based on values provided via in a structure of type

%  MagickStatStruct_t.

%

%  The format of the MagickGetFileAttributes method is:

%

%      int MagickSetFileAttributes(const char *filename,

%                                  const MagickStatStruct_t *statbuf)

%

%  A description of each parameter follows:

%

%    o filename:  Path to the file

%

%    o statbuf: A structure of type MagickStatStruct_t to populate.

%

%

*/

MagickExport int MagickSetFileAttributes(const char *filename,

                                         const MagickStatStruct_t *statbuf)

{

  struct utimbuf

    utbuf;

  utbuf.actime = statbuf->st_atime;

  utbuf.modtime = statbuf->st_mtime;

  if (utime(filename, &utbuf) != 0)

    return -1;

  return 0;

}

#endif /* defined(POSIX) */