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// 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_DETAIL_POSIX_PIPE_OUT_HPP
#define BOOST_PROCESS_DETAIL_POSIX_PIPE_OUT_HPP
#include <boost/process/pipe.hpp>
#include <boost/process/detail/posix/handler.hpp>
#include <unistd.h>
namespace boost { namespace process { namespace detail { namespace posix {
template<int p1, int p2>
struct pipe_out : handler_base_ext
{
int sink;
int source; //opposite end
pipe_out(int sink, int source) : sink(sink), source(source) {}
template<typename T>
pipe_out(T & p) : sink(p.native_sink()), source(p.native_source())
{
p.assign_sink(-1);
}
template<typename Executor>
void on_error(Executor &, const std::error_code &) const
{
::close(sink);
}
template<typename Executor>
void on_success(Executor &) const
{
::close(sink);
}
template <typename Executor>
void on_exec_setup(Executor &e) const;
};
template<>
template<typename Executor>
void pipe_out<1,-1>::on_exec_setup(Executor &e) const
{
if (::dup2(sink, STDOUT_FILENO) == -1)
e.set_error(::boost::process::detail::get_last_error(), "dup3() failed");
::close(sink);
::close(source);
}
template<>
template<typename Executor>
void pipe_out<2,-1>::on_exec_setup(Executor &e) const
{
if (::dup2(sink, STDERR_FILENO) == -1)
e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
::close(sink);
::close(source);
}
template<>
template<typename Executor>
void pipe_out<1,2>::on_exec_setup(Executor &e) const
{
if (::dup2(sink, STDOUT_FILENO) == -1)
e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
if (::dup2(sink, STDERR_FILENO) == -1)
e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
::close(sink);
::close(source);
}
class async_pipe;
template<int p1, int p2>
struct async_pipe_out : public pipe_out<p1, p2>
{
async_pipe &pipe;
template<typename AsyncPipe>
async_pipe_out(AsyncPipe & p) : pipe_out<p1, p2>(p.native_sink(), p.native_source()), pipe(p)
{
}
template<typename Pipe, typename Executor>
static void close(Pipe & pipe, Executor &)
{
boost::system::error_code ec;
std::move(pipe).sink().close(ec);
}
template<typename Executor>
void on_error(Executor & exec, const std::error_code &)
{
close(pipe, exec);
}
template<typename Executor>
void on_success(Executor &exec)
{
close(pipe, exec);
}
};
}}}}
#endif
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