69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
|
// Copyright (c) 2006, 2007 Julio M. Merino Vidal
|
||
|
|
// Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
|
||
|
|
// Copyright (c) 2009 Boris Schaeling
|
||
|
|
// Copyright (c) 2010 Felipe Tanus, Boris Schaeling
|
||
|
|
// Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
|
||
|
|
// 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_POSIX_PIPE_OUT_HPP
|
||
|
|
#define BOOST_PROCESS_POSIX_PIPE_OUT_HPP
|
||
|
|
|
||
|
|
#include <boost/process/detail/posix/handler.hpp>
|
||
|
|
#include <boost/process/detail/posix/file_descriptor.hpp>
|
||
|
|
#include <boost/process/detail/used_handles.hpp>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <array>
|
||
|
|
|
||
|
|
namespace boost { namespace process { namespace detail { namespace posix {
|
||
|
|
|
||
|
|
template<int p1, int p2>
|
||
|
|
struct null_out : handler_base_ext, ::boost::process::detail::uses_handles
|
||
|
|
{
|
||
|
|
file_descriptor sink{"/dev/null", file_descriptor::write};
|
||
|
|
|
||
|
|
template <typename Executor>
|
||
|
|
void on_exec_setup(Executor &e) const;
|
||
|
|
|
||
|
|
std::array<int, 3> get_used_handles()
|
||
|
|
{
|
||
|
|
const auto pp1 = p1 != -1 ? p1 : p2;
|
||
|
|
const auto pp2 = p2 != -1 ? p2 : p1;
|
||
|
|
|
||
|
|
return {sink.handle(), pp1, pp2};
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template<>
|
||
|
|
template<typename Executor>
|
||
|
|
void null_out<1,-1>::on_exec_setup(Executor &e) const
|
||
|
|
{
|
||
|
|
if (::dup2(sink.handle(), STDOUT_FILENO) == -1)
|
||
|
|
e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
template<typename Executor>
|
||
|
|
void null_out<2,-1>::on_exec_setup(Executor &e) const
|
||
|
|
{
|
||
|
|
if (::dup2(sink.handle(), STDERR_FILENO) == -1)
|
||
|
|
e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
template<typename Executor>
|
||
|
|
void null_out<1,2>::on_exec_setup(Executor &e) const
|
||
|
|
{
|
||
|
|
if (::dup2(sink.handle(), STDOUT_FILENO) == -1)
|
||
|
|
e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
|
||
|
|
|
||
|
|
if (::dup2(sink.handle(), STDERR_FILENO) == -1)
|
||
|
|
e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
|
||
|
|
}
|
||
|
|
|
||
|
|
}}}}
|
||
|
|
|
||
|
|
#endif
|