/* | |
* 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 |