ceph/src/boost/libs/winapi/include/boost/detail/winapi/environment.hpp

   1 //  environment.hpp  --------------------------------------------------------------//
   2
   3 //  Copyright 2016 Klemens D. Morgenstern
   4
   5 //  Distributed under the Boost Software License, Version 1.0.
   6 //  See http://www.boost.org/LICENSE_1_0.txt
   7
   8 #ifndef BOOST_DETAIL_WINAPI_ENVIRONMENT_HPP_
   9 #define BOOST_DETAIL_WINAPI_ENVIRONMENT_HPP_
  10
  11 #include <boost/detail/winapi/basic_types.hpp>
  12
  13 #ifdef BOOST_HAS_PRAGMA_ONCE
  14 #pragma once
  15 #endif
  16
  17 #if !defined( BOOST_USE_WINDOWS_H )
  18 extern "C" {
  19 #if !defined( BOOST_NO_ANSI_APIS )
  20 BOOST_SYMBOL_IMPORT boost::detail::winapi::LPSTR_ WINAPI GetEnvironmentStringsA();
  21 BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI FreeEnvironmentStringsA(boost::detail::winapi::LPSTR_);
  22
  23 BOOST_SYMBOL_IMPORT boost::detail::winapi::DWORD_ WINAPI GetEnvironmentVariableA(
  24     boost::detail::winapi::LPCSTR_ lpName,
  25     boost::detail::winapi::LPSTR_ lpBuffer,
  26     boost::detail::winapi::DWORD_ nSize
  27 );
  28
  29 BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI SetEnvironmentVariableA(
  30     boost::detail::winapi::LPCSTR_ lpName,
  31     boost::detail::winapi::LPCSTR_ lpValue
  32 );
  33 #endif // !defined( BOOST_NO_ANSI_APIS )
  34
  35 BOOST_SYMBOL_IMPORT boost::detail::winapi::LPWSTR_ WINAPI GetEnvironmentStringsW();
  36 BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI FreeEnvironmentStringsW(boost::detail::winapi::LPWSTR_);
  37
  38 BOOST_SYMBOL_IMPORT boost::detail::winapi::DWORD_ WINAPI GetEnvironmentVariableW(
  39     boost::detail::winapi::LPCWSTR_ lpName,
  40     boost::detail::winapi::LPWSTR_ lpBuffer,
  41     boost::detail::winapi::DWORD_ nSize
  42 );
  43
  44 BOOST_SYMBOL_IMPORT boost::detail::winapi::BOOL_ WINAPI SetEnvironmentVariableW(
  45     boost::detail::winapi::LPCWSTR_ lpName,
  46     boost::detail::winapi::LPCWSTR_ lpValue
  47 );
  48 } // extern "C"
  49 #endif // !defined( BOOST_USE_WINDOWS_H )
  50
  51 namespace boost { namespace detail { namespace winapi {
  52
  53 #if !defined( BOOST_NO_ANSI_APIS )
  54 using ::GetEnvironmentStringsA;
  55 using ::FreeEnvironmentStringsA;
  56 using ::GetEnvironmentVariableA;
  57 using ::SetEnvironmentVariableA;
  58 #endif // !defined( BOOST_NO_ANSI_APIS )
  59
  60 using ::GetEnvironmentStringsW;
  61 using ::FreeEnvironmentStringsW;
  62 using ::GetEnvironmentVariableW;
  63 using ::SetEnvironmentVariableW;
  64
  65 template< typename Char >
  66 Char* get_environment_strings();
  67
  68 #if !defined( BOOST_NO_ANSI_APIS )
  69
  70 template< >
  71 BOOST_FORCEINLINE char* get_environment_strings< char >()
  72 {
  73     return GetEnvironmentStringsA();
  74 }
  75
  76 BOOST_FORCEINLINE BOOL_ free_environment_strings(boost::detail::winapi::LPSTR_ p)
  77 {
  78     return FreeEnvironmentStringsA(p);
  79 }
  80
  81 BOOST_FORCEINLINE DWORD_ get_environment_variable(LPCSTR_ name, LPSTR_ buffer, DWORD_ size)
  82 {
  83     return GetEnvironmentVariableA(name, buffer, size);
  84 }
  85
  86 BOOST_FORCEINLINE BOOL_ set_environment_variable(LPCSTR_ name, LPCSTR_ value)
  87 {
  88     return SetEnvironmentVariableA(name, value);
  89 }
  90
  91 #endif // !defined( BOOST_NO_ANSI_APIS )
  92
  93 template< >
  94 BOOST_FORCEINLINE wchar_t* get_environment_strings< wchar_t >()
  95 {
  96     return GetEnvironmentStringsW();
  97 }
  98
  99 BOOST_FORCEINLINE BOOL_ free_environment_strings(boost::detail::winapi::LPWSTR_ p)
 100 {
 101     return FreeEnvironmentStringsW(p);
 102 }
 103
 104 BOOST_FORCEINLINE DWORD_ get_environment_variable(LPCWSTR_ name, LPWSTR_ buffer, DWORD_ size)
 105 {
 106     return GetEnvironmentVariableW(name, buffer, size);
 107 }
 108
 109 BOOST_FORCEINLINE BOOL_ set_environment_variable(LPCWSTR_ name, LPCWSTR_ value)
 110 {
 111     return SetEnvironmentVariableW(name, value);
 112 }
 113
 114 } // namespace winapi
 115 } // namespace detail
 116 } // namespace boost
 117
 118 #endif // BOOST_DETAIL_WINAPI_ENVIRONMENT_HPP_