//
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// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail 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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// Official repository: https://github.com/boostorg/beast
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//
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#ifndef BOOST_BEAST_DETAIL_BUFFERS_REF_HPP
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#define BOOST_BEAST_DETAIL_BUFFERS_REF_HPP
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#include <boost/beast/core/buffer_traits.hpp>
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#include <iterator>
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#include <memory>
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namespace boost {
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namespace beast {
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namespace detail {
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// A very lightweight reference to a buffer sequence
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template<class BufferSequence>
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class buffers_ref
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{
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BufferSequence const* buffers_;
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public:
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using const_iterator =
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buffers_iterator_type<BufferSequence>;
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using value_type = typename
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std::iterator_traits<const_iterator>::value_type;
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buffers_ref(buffers_ref const&) = default;
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buffers_ref& operator=(buffers_ref const&) = default;
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explicit
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buffers_ref(BufferSequence const& buffers)
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: buffers_(std::addressof(buffers))
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{
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}
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const_iterator
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begin() const
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{
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return net::buffer_sequence_begin(*buffers_);
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}
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const_iterator
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end() const
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{
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return net::buffer_sequence_end(*buffers_);
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}
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};
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// Return a reference to a buffer sequence
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template<class BufferSequence>
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buffers_ref<BufferSequence>
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make_buffers_ref(BufferSequence const& buffers)
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{
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static_assert(
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is_const_buffer_sequence<BufferSequence>::value,
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"BufferSequence type requirements not met");
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return buffers_ref<BufferSequence>(buffers);
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}
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} // detail
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} // beast
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} // boost
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#endif
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