58de70e3c1
git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@18 52acb1d6-8a22-11de-b505-999d5b087335
70 lines
1.4 KiB
C++
70 lines
1.4 KiB
C++
//
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// fd_set_adapter.hpp
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// ~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2005 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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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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//
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#ifndef BOOST_ASIO_DETAIL_FD_SET_ADAPTER_HPP
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#define BOOST_ASIO_DETAIL_FD_SET_ADAPTER_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include <boost/asio/detail/push_options.hpp>
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#include <boost/asio/detail/socket_types.hpp>
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namespace boost {
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namespace asio {
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namespace detail {
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// Adapts the FD_SET type to meet the Descriptor_Set concept's requirements.
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class fd_set_adapter
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{
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public:
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fd_set_adapter()
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: max_descriptor_(invalid_socket)
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{
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FD_ZERO(&fd_set_);
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}
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void set(socket_type descriptor)
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{
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if (max_descriptor_ == invalid_socket || descriptor > max_descriptor_)
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max_descriptor_ = descriptor;
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FD_SET(descriptor, &fd_set_);
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}
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bool is_set(socket_type descriptor) const
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{
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return FD_ISSET(descriptor, &fd_set_) != 0;
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}
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operator fd_set*()
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{
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return &fd_set_;
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}
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socket_type max_descriptor() const
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{
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return max_descriptor_;
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}
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private:
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fd_set fd_set_;
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socket_type max_descriptor_;
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};
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} // namespace detail
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} // namespace asio
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} // namespace boost
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#include <boost/asio/detail/pop_options.hpp>
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#endif // BOOST_ASIO_DETAIL_FD_SET_ADAPTER_HPP
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