// 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_POSIX_PIPE_IN_HPP
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#define BOOST_PROCESS_POSIX_PIPE_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 <unistd.h>
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#include <boost/process/detail/used_handles.hpp>
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#include <array>
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namespace boost { namespace process { namespace detail { namespace posix {
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struct pipe_in : handler_base_ext, ::boost::process::detail::uses_handles
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{
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int source;
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int sink; //opposite end
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pipe_in(int sink, int source) : source(source), sink(sink) {}
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std::array<int, 3> get_used_handles()
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{
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return {{STDIN_FILENO, source, sink}};
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}
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template<typename T>
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pipe_in(T & p) : source(p.native_source()), sink(p.native_sink())
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{
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p.assign_source(-1);
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}
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template<typename Executor>
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void on_error(Executor &, const std::error_code &) const
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{
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::close(source);
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}
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template<typename Executor>
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void on_success(Executor &) const
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{
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::close(source);
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}
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template <class Executor>
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void on_exec_setup(Executor &e) const
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{
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if (::dup2(source, STDIN_FILENO) == -1)
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e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
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if (source != STDIN_FILENO)
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::close(source);
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::close(sink);
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}
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};
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class async_pipe;
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struct async_pipe_in : public pipe_in
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{
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async_pipe &pipe;
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template<typename AsyncPipe>
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async_pipe_in(AsyncPipe & p) : pipe_in(p.native_sink(), p.native_source()), pipe(p)
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{
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}
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template<typename Pipe, typename Executor>
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static void close(Pipe & pipe, Executor &)
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{
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boost::system::error_code ec;
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std::move(pipe).source().close(ec);
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}
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template<typename Executor>
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void on_error(Executor & exec, const std::error_code &)
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{
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close(pipe, exec);
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}
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template<typename Executor>
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void on_success(Executor &exec)
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{
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close(pipe, exec);
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}
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};
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}}}}
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#endif
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