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 // Copyright (c) 2016 Klemens D. Morgenstern
8 // Distributed under the Boost Software License, Version 1.0. (See accompanying
9 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
11 #ifndef BOOST_PROCESS_POSIX_FILE_OUT_HPP
12 #define BOOST_PROCESS_POSIX_FILE_OUT_HPP
14 #include <boost/process/detail/posix/handler.hpp>
15 #include <boost/process/detail/posix/file_descriptor.hpp>
18 namespace boost { namespace process { namespace detail { namespace posix {
20 template<int p1, int p2>
21 struct file_out : handler_base_ext
24 int handle = file.handle();
27 file_out(T&& t) : file(std::forward<T>(t), file_descriptor::write), handle(file.handle()) {}
28 file_out(FILE * f) : handle(fileno(f)) {}
31 template <typename Executor>
32 void on_exec_setup(Executor &e) const;
36 template<typename Executor>
37 void file_out<1,-1>::on_exec_setup(Executor &e) const
39 if (::dup2(handle, STDOUT_FILENO) == -1)
40 e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
44 template<typename Executor>
45 void file_out<2,-1>::on_exec_setup(Executor &e) const
47 if (::dup2(handle, STDERR_FILENO) == -1)
48 e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
52 template<typename Executor>
53 void file_out<1,2>::on_exec_setup(Executor &e) const
55 if (::dup2(handle, STDOUT_FILENO) == -1)
56 e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
58 if (::dup2(handle, STDERR_FILENO) == -1)
59 e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");