ceph/src/boost/boost/process/detail/config.hpp

   1 // Copyright (c) 2006, 2007 Julio M. Merino Vidal
   2 // Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
   3 // Copyright (c) 2009 Boris Schaeling
   4 // Copyright (c) 2010 Felipe Tanus, Boris Schaeling
   5 // Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
   6 // Copyright (c) 2016 Klemens D. Morgenstern
   7 //
   8 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   9 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  10
  11 /**
  12  * \file boost/process/config.hpp
  13  *
  14  * Defines various macros.
  15  */
  16
  17 #ifndef BOOST_PROCESS_DETAIL_CONFIG_HPP
  18 #define BOOST_PROCESS_DETAIL_CONFIG_HPP
  19
  20 #include <boost/config.hpp>
  21 #include <system_error>
  22 #include <boost/system/api_config.hpp>
  23
  24 #include <boost/process/exception.hpp>
  25
  26 #if defined(BOOST_POSIX_API)
  27 #include <errno.h>
  28 #if defined(__GLIBC__)
  29 #include <features.h>
  30 #else
  31 extern char **environ;
  32 #endif
  33 #elif defined(BOOST_WINDOWS_API)
  34 #include <boost/winapi/get_last_error.hpp>
  35 #else
  36 #error "System API not supported by boost.process"
  37 #endif
  38
  39 namespace boost { namespace process { namespace detail
  40 {
  41
  42 #if !defined(BOOST_PROCESS_PIPE_SIZE)
  43 #define BOOST_PROCESS_PIPE_SIZE 1024
  44 #endif
  45
  46 #if defined(BOOST_POSIX_API)
  47 namespace posix {namespace extensions {}}
  48 namespace api = posix;
  49
  50 inline std::error_code get_last_error() noexcept
  51 {
  52     return std::error_code(errno, std::system_category());
  53 }
  54
  55 //copied from linux spec.
  56 #if (_XOPEN_SOURCE >= 500 || _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED) && !(_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700)
  57 #define BOOST_POSIX_HAS_VFORK 1
  58 #endif
  59
  60 #elif defined(BOOST_WINDOWS_API)
  61 namespace windows {namespace extensions {}}
  62 namespace api = windows;
  63
  64 inline std::error_code get_last_error() noexcept
  65 {
  66     return std::error_code(::boost::winapi::GetLastError(), std::system_category());
  67 }
  68 #endif
  69
  70 inline void throw_last_error(const std::string & msg)
  71 {
  72     throw process_error(get_last_error(), msg);
  73 }
  74
  75 inline void throw_last_error(const char * msg)
  76 {
  77     throw process_error(get_last_error(), msg);
  78 }
  79
  80 inline void throw_last_error()
  81 {
  82     throw process_error(get_last_error());
  83 }
  84
  85
  86 template<typename Char> constexpr Char null_char();
  87 template<> constexpr char     null_char<char>     (){return   '\0';}
  88 template<> constexpr wchar_t  null_char<wchar_t>  (){return  L'\0';}
  89
  90 template<typename Char> constexpr Char equal_sign();
  91 template<> constexpr char     equal_sign<char>    () {return  '='; }
  92 template<> constexpr wchar_t  equal_sign<wchar_t> () {return L'='; }
  93
  94 template<typename Char> constexpr Char quote_sign();
  95 template<> constexpr char     quote_sign<char>    () {return  '"'; }
  96 template<> constexpr wchar_t  quote_sign<wchar_t> () {return L'"'; }
  97
  98 template<typename Char> constexpr Char space_sign();
  99 template<> constexpr char     space_sign<char>    () {return  ' '; }
 100 template<> constexpr wchar_t  space_sign<wchar_t> () {return L' '; }
 101
 102
 103 }}}
 104 #endif