Chris@16: //  (C) Copyright Gennadiy Rozental 2005-2008.
Chris@16: //  Distributed under the Boost Software License, Version 1.0.
Chris@16: //  (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: //  See http://www.boost.org/libs/test for the library home page.
Chris@16: //
Chris@16: //  File        : $RCSfile$
Chris@16: //
Chris@101: //  Version     : $Revision$
Chris@16: //
Chris@16: //  Description : implements model of program environment 
Chris@16: // ***************************************************************************
Chris@16: 
Chris@16: #ifndef BOOST_RT_ENV_ENVIRONMENT_IPP_062904GER
Chris@16: #define BOOST_RT_ENV_ENVIRONMENT_IPP_062904GER
Chris@16: 
Chris@16: // Boost.Runtime.Parameter
Chris@16: #include <boost/test/utils/runtime/config.hpp>
Chris@16: #include <boost/test/utils/runtime/validation.hpp>
Chris@16: 
Chris@16: #include <boost/test/utils/runtime/env/variable.hpp>
Chris@16: 
Chris@16: // Boost.Test
Chris@16: #include <boost/test/utils/basic_cstring/compare.hpp>
Chris@16: #include <boost/test/utils/basic_cstring/io.hpp>
Chris@16: 
Chris@16: // STL
Chris@16: #include <map>
Chris@16: #include <list>
Chris@16: 
Chris@16: namespace boost {
Chris@16: 
Chris@16: namespace BOOST_RT_PARAM_NAMESPACE {
Chris@16: 
Chris@16: namespace environment {
Chris@16: 
Chris@16: // ************************************************************************** //
Chris@16: // **************             runtime::environment             ************** //
Chris@16: // ************************************************************************** //
Chris@16: 
Chris@16: namespace rt_env_detail {
Chris@16: 
Chris@16: typedef std::map<cstring,rt_env_detail::variable_data> registry;
Chris@16: typedef std::list<dstring> keys;
Chris@16: 
Chris@16: BOOST_RT_PARAM_INLINE registry& s_registry()    { static registry instance; return instance; }
Chris@16: BOOST_RT_PARAM_INLINE keys&     s_keys()        { static keys instance; return instance; }
Chris@16: 
Chris@16: BOOST_RT_PARAM_INLINE variable_data&
Chris@16: new_var_record( cstring var_name )
Chris@16: {
Chris@16:     // save the name in list of keys
Chris@16:     s_keys().push_back( dstring() );
Chris@16:     dstring& key = s_keys().back();
Chris@16:     assign_op( key, var_name, 0 );
Chris@16: 
Chris@16:     // create and return new record
Chris@16:     variable_data& new_var_data = s_registry()[key];
Chris@16:     
Chris@16:     new_var_data.m_var_name = key;
Chris@16:     
Chris@16:     return new_var_data;
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: BOOST_RT_PARAM_INLINE variable_data*
Chris@16: find_var_record( cstring var_name )
Chris@16: {
Chris@16:     registry::iterator it = s_registry().find( var_name );
Chris@16: 
Chris@16:     return it == s_registry().end() ? 0 : &(it->second);
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: #ifdef BOOST_MSVC 
Chris@16: #pragma warning(push) 
Chris@16: #pragma warning(disable:4996) // getenv
Chris@16: #endif
Chris@16: 
Chris@16: BOOST_RT_PARAM_INLINE cstring
Chris@16: sys_read_var( cstring var_name )
Chris@16: {
Chris@16:     using namespace std;
Chris@16:     return BOOST_RT_PARAM_GETENV( var_name.begin() );
Chris@16: }
Chris@16: 
Chris@16: #ifdef BOOST_MSVC 
Chris@16: #pragma warning(pop) 
Chris@16: #endif
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: BOOST_RT_PARAM_INLINE void
Chris@16: sys_write_var( cstring var_name, format_stream& var_value )
Chris@16: {
Chris@16:     BOOST_RT_PARAM_PUTENV( var_name, cstring( var_value.str() ) );
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: } // namespace rt_env_detail
Chris@16: 
Chris@16: BOOST_RT_PARAM_INLINE variable_base
Chris@16: var( cstring var_name )
Chris@16: {
Chris@16:     rt_env_detail::variable_data* vd = rt_env_detail::find_var_record( var_name );
Chris@16: 
Chris@16:     BOOST_RT_PARAM_VALIDATE_LOGIC( !!vd,
Chris@16:                                    BOOST_RT_PARAM_LITERAL( "First access to the environment variable " ) 
Chris@16:                                         << var_name << BOOST_RT_PARAM_LITERAL( " should be typed" ) );
Chris@16: 
Chris@16:     return variable_base( *vd );
Chris@16: }
Chris@16: 
Chris@16: //____________________________________________________________________________//
Chris@16: 
Chris@16: } // namespace environment
Chris@16: 
Chris@16: } // namespace BOOST_RT_PARAM_NAMESPACE
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // BOOST_RT_ENV_ENVIRONMENT_IPP_062904GER