ceph/src/boost/boost/nowide/stat.hpp

   1 //
   2 //  Copyright (c) 2020 Alexander Grund
   3 //
   4 //  Distributed under the Boost Software License, Version 1.0. (See
   5 //  accompanying file LICENSE or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 #ifndef BOOST_NOWIDE_STAT_HPP_INCLUDED
   8 #define BOOST_NOWIDE_STAT_HPP_INCLUDED
   9
  10 #include <boost/nowide/config.hpp>
  11 #include <sys/types.h>
  12 // Include after sys/types.h
  13 #include <sys/stat.h>
  14
  15 #if defined(__MINGW32__) && defined(__MSVCRT_VERSION__) && __MSVCRT_VERSION__ < 0x0601
  16 /// Forward declaration in case MinGW32 is used and __MSVCRT_VERSION__ is defined lower than 6.1
  17 struct __stat64;
  18 #endif
  19
  20 namespace boost {
  21 namespace nowide {
  22 #if !defined(BOOST_WINDOWS) && !defined(BOOST_NOWIDE_DOXYGEN)
  23     // Note: `using x = struct ::stat` causes a bogus warning in GCC < 11
  24     // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66159
  25
  26     typedef struct ::stat stat_t;
  27     typedef struct ::stat posix_stat_t;
  28
  29     using ::stat;
  30 #else
  31     /// \brief Typedef for the file info structure.
  32     /// Able to hold 64 bit filesize and timestamps on Windows and usually also on other 64 Bit systems
  33     /// This allows to write portable code with option LFS support
  34     typedef struct ::__stat64 stat_t;
  35     /// \brief Typedef for the file info structure used in the POSIX stat call
  36     /// Resolves to `struct _stat` on Windows and `struct stat` otherwise
  37     /// This allows to write portable code using the default stat function
  38     typedef struct ::_stat posix_stat_t;
  39
  40     /// \cond INTERNAL
  41     namespace detail {
  42         BOOST_NOWIDE_DECL int stat(const char* path, posix_stat_t* buffer, size_t buffer_size);
  43     }
  44     /// \endcond
  45
  46     ///
  47     /// \brief UTF-8 aware stat function, returns 0 on success
  48     ///
  49     /// Return information about a file from an UTF-8 encoded path
  50     ///
  51     BOOST_NOWIDE_DECL int stat(const char* path, stat_t* buffer);
  52     ///
  53     /// \brief UTF-8 aware stat function, returns 0 on success
  54     ///
  55     /// Return information about a file from an UTF-8 encoded path
  56     ///
  57     inline int stat(const char* path, posix_stat_t* buffer)
  58     {
  59         return detail::stat(path, buffer, sizeof(*buffer));
  60     }
  61 #endif
  62 } // namespace nowide
  63 } // namespace boost
  64
  65 #endif