Chris@16: /*
Chris@16:  * Distributed under the Boost Software License, Version 1.0.(See accompanying 
Chris@16:  * file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
Chris@16:  * 
Chris@16:  * See http://www.boost.org/libs/iostreams for documentation.
Chris@16: 
Chris@16:  * File:        boost/iostreams/detail/execute.hpp
Chris@16:  * Date:        Thu Dec 06 13:21:54 MST 2007
Chris@16:  * Copyright:   2007-2008 CodeRage, LLC
Chris@16:  * Author:      Jonathan Turkanis
Chris@16:  * Contact:     turkanis at coderage dot com
Chris@16:  *
Chris@16:  * Defines the function boost::iostreams::detail::current_directory, used by 
Chris@16:  * boost::iostreams::detail::absolute_path.
Chris@16:  */
Chris@16: 
Chris@16: #ifndef BOOST_IOSTREAMS_DETAIL_CURRENT_DIRECTORY_HPP_INCLUDED
Chris@16: #define BOOST_IOSTREAMS_DETAIL_CURRENT_DIRECTORY_HPP_INCLUDED
Chris@16: 
Chris@16: #include <boost/config.hpp>  // make sure size_t is in std.
Chris@16: #include <cstddef>           // size_t
Chris@16: #include <string>
Chris@16: #include <boost/iostreams/detail/buffer.hpp>
Chris@16: #include <boost/iostreams/detail/config/windows_posix.hpp>
Chris@16: #include <boost/iostreams/detail/system_failure.hpp>
Chris@16: #ifdef BOOST_IOSTREAMS_WINDOWS
Chris@16: # define WIN32_LEAN_AND_MEAN  // Exclude rarely-used stuff from Windows headers
Chris@16: # include <windows.h>
Chris@16: #else
Chris@16: # include <unistd.h>        // sysconf.
Chris@16: #endif
Chris@16: 
Chris@16: // Must come last.
Chris@16: #include <boost/iostreams/detail/config/disable_warnings.hpp>
Chris@16: 
Chris@16: namespace boost { namespace iostreams { namespace detail {
Chris@16: 
Chris@16: // Returns the current working directory
Chris@16: inline std::string current_directory()
Chris@16: {
Chris@16: #ifdef BOOST_IOSTREAMS_WINDOWS
Chris@16:     DWORD               length;
Chris@16:     basic_buffer<char>  buf(MAX_PATH);
Chris@16:     while (true) {
Chris@16:         length = ::GetCurrentDirectoryA(buf.size(), buf.data());
Chris@16:         if (!length)
Chris@16:             throw_system_failure("failed determining current directory");
Chris@16:         if (length < static_cast<DWORD>(buf.size()))
Chris@16:             break;
Chris@16:         buf.resize(buf.size() * 2);
Chris@16:     }
Chris@16:     return std::string(buf.data(), length);
Chris@16: #else // #ifdef BOOST_IOSTREAMS_WINDOWS
Chris@16:     basic_buffer<char> buf(pathconf(".", _PC_PATH_MAX));
Chris@16:     if (!getcwd(buf.data(), static_cast<size_t>(buf.size())))
Chris@16:         throw_system_failure("failed determining current directory");
Chris@16:     return std::string(buf.data());
Chris@16: #endif // #ifdef BOOST_IOSTREAMS_WINDOWS
Chris@16: }
Chris@16: 
Chris@16: } } } // End namespaces detail, iostreams, boost.
Chris@16: 
Chris@16: #include <boost/iostreams/detail/config/enable_warnings.hpp>
Chris@16: 
Chris@16: #endif // #ifndef BOOST_IOSTREAMS_DETAIL_CURRENT_DIRECTORY_HPP_INCLUDED