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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
//
// 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_FD_HPP
#define BOOST_PROCESS_DETAIL_POSIX_FD_HPP
#include <boost/process/detail/posix/handler.hpp>
#include <unistd.h>
namespace boost { namespace process { namespace detail { namespace posix {
struct close_fd_ : handler_base_ext
{
close_fd_(int fd) : fd_(fd) {}
template <class PosixExecutor>
void on_exec_setup(PosixExecutor& e) const
{
if (::close(fd_) == -1)
e.set_error(::boost::process::detail::get_last_error(), "close() failed");
}
private:
int fd_;
};
template <class Range>
struct close_fds_ : handler_base_ext
{
public:
close_fds_(const Range &fds) : fds_(fds) {}
template <class PosixExecutor>
void on_exec_setup(PosixExecutor& e) const
{
for (auto & fd_ : fds_)
if (::close(fd_) == -1)
{
e.set_error(::boost::process::detail::get_last_error(), "close() failed");
break;
}
}
private:
Range fds_;
};
template <class FileDescriptor>
struct bind_fd_ : handler_base_ext
{
public:
bind_fd_(int id, const FileDescriptor &fd) : id_(id), fd_(fd) {}
template <class PosixExecutor>
void on_exec_setup(PosixExecutor& e) const
{
if (::dup2(fd_, id_) == -1)
e.set_error(::boost::process::detail::get_last_error(), "dup2() failed");
}
private:
int id_;
FileDescriptor fd_;
};
struct fd_
{
constexpr fd_() {};
close_fd_ close(int _fd) const {return close_fd_(_fd);}
close_fds_<std::vector<int>> close(const std::initializer_list<int> & vec) const {return std::vector<int>(vec);}
template<typename Range>
close_fds_<Range> close(const Range & r) const {return r;}
template <class FileDescriptor>
bind_fd_<FileDescriptor> bind(int id, const FileDescriptor & fd) const {return {id, fd};}
};
}}}}
#endif
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