1 // Copyright (c) 2006, 2007 Julio M. Merino Vidal 2 // Copyright (c) 2008 Ilya Sokolov, Boris Schaeling 3 // Copyright (c) 2009 Boris Schaeling 4 // Copyright (c) 2010 Felipe Tanus, Boris Schaeling 5 // Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling 6 // 7 // Distributed under the Boost Software License, Version 1.0. (See accompanying 8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 9 10 #ifndef BOOST_PROCESS_DETAIL_POSIX_FILE_IN_HPP 11 #define BOOST_PROCESS_DETAIL_POSIX_FILE_IN_HPP 12 13 #include <boost/process/pipe.hpp> 14 #include <boost/process/detail/posix/handler.hpp> 15 #include <boost/process/detail/posix/file_descriptor.hpp> 16 #include <boost/process/detail/used_handles.hpp> 17 #include <cstdio> 18 #include <unistd.h> 19 20 namespace boost { namespace process { namespace detail { namespace posix { 21 22 struct file_in : handler_base_ext, ::boost::process::detail::uses_handles 23 { 24 file_descriptor file; 25 int handle = file.handle(); 26 get_used_handlesboost::process::detail::posix::file_in27 std::array<int, 2> get_used_handles() 28 { 29 return {STDIN_FILENO, handle}; 30 } 31 32 template<typename T> file_inboost::process::detail::posix::file_in33 file_in(T&& t) : file(std::forward<T>(t)) {} file_inboost::process::detail::posix::file_in34 file_in(FILE * f) : handle(fileno(f)) {} 35 36 template <class WindowsExecutor> on_exec_setupboost::process::detail::posix::file_in37 void on_exec_setup(WindowsExecutor &e) const 38 { 39 if (::dup2(handle, STDIN_FILENO) == -1) 40 e.set_error(::boost::process::detail::get_last_error(), "dup2() failed"); 41 } 42 }; 43 44 }}}} 45 46 #endif 47