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