| // Copyright (c) 2016 Klemens D. Morgenstern |
| // |
| // 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) |
| |
| #ifndef BOOST_PROCESS_DETAIL_WINDOWS_COMPARE_HANDLES_HPP_ |
| #define BOOST_PROCESS_DETAIL_WINDOWS_COMPARE_HANDLES_HPP_ |
| |
| #include <boost/winapi/handles.hpp> |
| #include <boost/winapi/file_management.hpp> |
| #include <boost/process/detail/config.hpp> |
| |
| namespace boost { namespace process { namespace detail { namespace windows { |
| |
| inline bool compare_handles(boost::winapi::HANDLE_ lhs, boost::winapi::HANDLE_ rhs) |
| { |
| if ( (lhs == ::boost::winapi::INVALID_HANDLE_VALUE_) |
| || (rhs == ::boost::winapi::INVALID_HANDLE_VALUE_)) |
| return false; |
| |
| if (lhs == rhs) |
| return true; |
| |
| ::boost::winapi::BY_HANDLE_FILE_INFORMATION_ lhs_info{0,{0,0},{0,0},{0,0},0,0,0,0,0,0}; |
| ::boost::winapi::BY_HANDLE_FILE_INFORMATION_ rhs_info{0,{0,0},{0,0},{0,0},0,0,0,0,0,0}; |
| |
| if (!::boost::winapi::GetFileInformationByHandle(lhs, &lhs_info)) |
| ::boost::process::detail::throw_last_error("GetFileInformationByHandle"); |
| |
| if (!::boost::winapi::GetFileInformationByHandle(rhs, &rhs_info)) |
| ::boost::process::detail::throw_last_error("GetFileInformationByHandle"); |
| |
| return (lhs_info.nFileIndexHigh == rhs_info.nFileIndexHigh) |
| && (lhs_info.nFileIndexLow == rhs_info.nFileIndexLow); |
| } |
| |
| }}}} |
| |
| |
| |
| #endif /* BOOST_PROCESS_DETAIL_WINDOWS_COMPARE_HANDLES_HPP_ */ |