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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_NULL_IN_HPP | |
11 | #define BOOST_PROCESS_DETAIL_POSIX_NULL_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 <unistd.h> | |
92f5a8d4 TL |
17 | #include <boost/process/detail/used_handles.hpp> |
18 | #include <array> | |
b32b8144 FG |
19 | |
20 | namespace boost { namespace process { namespace detail { namespace posix { | |
21 | ||
92f5a8d4 | 22 | struct null_in : handler_base_ext, ::boost::process::detail::uses_handles |
b32b8144 FG |
23 | { |
24 | file_descriptor source{"/dev/null", file_descriptor::read}; | |
25 | ||
92f5a8d4 TL |
26 | std::array<int, 2> get_used_handles() |
27 | { | |
28 | return {STDIN_FILENO, source.handle()}; | |
29 | } | |
30 | ||
31 | ||
b32b8144 FG |
32 | public: |
33 | template <class Executor> | |
34 | void on_exec_setup(Executor &e) const | |
35 | { | |
36 | if (::dup2(source.handle(), STDIN_FILENO) == -1) | |
37 | e.set_error(::boost::process::detail::get_last_error(), "dup2() failed"); | |
38 | } | |
39 | }; | |
40 | ||
41 | }}}} | |
42 | ||
43 | #endif |