xapian-core/common/safesysstat.h

   1 /** @file safesysstat.h
   2  * @brief #include <sys/stat.h> with portability enhancements
   3  */
   4 /* Copyright (C) 2007,2012,2017 Olly Betts
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
  19  * USA
  20  */
  21
  22 #ifndef XAPIAN_INCLUDED_SAFESYSSTAT_H
  23 #define XAPIAN_INCLUDED_SAFESYSSTAT_H
  24
  25 #include <sys/stat.h>
  26 #include <sys/types.h>
  27
  28 #ifdef __WIN32__
  29
  30 // MSVC lacks these POSIX macros and other compilers may too:
  31 #ifndef S_ISDIR
  32 # define S_ISDIR(ST_MODE) (((ST_MODE) & _S_IFMT) == _S_IFDIR)
  33 #endif
  34 #ifndef S_ISREG
  35 # define S_ISREG(ST_MODE) (((ST_MODE) & _S_IFMT) == _S_IFREG)
  36 #endif
  37
  38 // On UNIX, mkdir() is prototyped in <sys/stat.h> but on Windows it's in
  39 // <direct.h>, so just include that from here to avoid build failures on
  40 // MSVC just because of some new use of mkdir().  This also reduces the
  41 // number of conditionalised #include statements we need in the sources.
  42 #include <direct.h>
  43
  44 // Add overloaded version of mkdir which takes an (ignored) mode argument
  45 // to allow source code to just specify a mode argument unconditionally.
  46 //
  47 // The () around mkdir are in case it's defined as a macro.
  48 inline int (mkdir)(const char *pathname, mode_t /*mode*/) {
  49     return _mkdir(pathname);
  50 }
  51
  52 #else
  53
  54 // These were specified by POSIX.1-1996, so most platforms should have
  55 // these by now:
  56 #ifndef S_ISDIR
  57 # define S_ISDIR(ST_MODE) (((ST_MODE) & S_IFMT) == S_IFDIR)
  58 #endif
  59 #ifndef S_ISREG
  60 # define S_ISREG(ST_MODE) (((ST_MODE) & S_IFMT) == S_IFREG)
  61 #endif
  62
  63 #endif
  64
  65 #endif /* XAPIAN_INCLUDED_SAFESYSSTAT_H */