47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
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// Copyright (c) 2006, 2007 Julio M. Merino Vidal
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// Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
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// Copyright (c) 2009 Boris Schaeling
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// Copyright (c) 2010 Felipe Tanus, Boris Schaeling
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// Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_PROCESS_DETAIL_POSIX_FILE_IN_HPP
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#define BOOST_PROCESS_DETAIL_POSIX_FILE_IN_HPP
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#include <boost/process/pipe.hpp>
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#include <boost/process/detail/posix/handler.hpp>
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#include <boost/process/detail/posix/file_descriptor.hpp>
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#include <boost/process/detail/used_handles.hpp>
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#include <cstdio>
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#include <unistd.h>
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namespace boost { namespace process { namespace detail { namespace posix {
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struct file_in : handler_base_ext, ::boost::process::detail::uses_handles
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{
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file_descriptor file;
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int handle = file.handle();
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std::array<int, 2> get_used_handles()
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{
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return {{STDIN_FILENO, handle}};
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}
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template<typename T>
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file_in(T&& t) : file(std::forward<T>(t)) {}
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file_in(FILE * f) : handle(fileno(f)) {}
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template <class WindowsExecutor>
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void on_exec_setup(WindowsExecutor &e) const
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{
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if (::dup2(handle, STDIN_FILENO) == -1)
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e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
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}
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};
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}}}}
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#endif
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