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/*
* Copyright (c) 2011-2013 libbitcoin developers (see AUTHORS)
*
* This file is part of libbitcoin.
*
* libbitcoin is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License with
* additional permissions to the one published by the Free Software
* Foundation, either version 3 of the License, or (at your option)
* any later version. For more information see LICENSE.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBBITCOIN_NET_SHARED_CONST_BUFFER_HPP
#define LIBBITCOIN_NET_SHARED_CONST_BUFFER_HPP
#include <boost/asio.hpp>
#include <bitcoin/types.hpp>
#include <bitcoin/utility/serializer.hpp>
namespace libbitcoin {
// A reference-counted non-modifiable buffer class.
class shared_const_buffer
{
public:
// Construct from a stream object
explicit shared_const_buffer(const data_chunk& user_data)
: data_(std::make_shared<data_chunk>(
std::begin(user_data), std::end(user_data))),
buffer_(boost::asio::buffer(*data_))
{
}
// Implement the ConstBufferSequence requirements.
typedef boost::asio::const_buffer value_type;
typedef const value_type* const_iterator;
const_iterator begin() const
{
return &buffer_;
}
const_iterator end() const
{
return &buffer_ + 1;
}
private:
std::shared_ptr<data_chunk> data_;
value_type buffer_;
};
} // namespace libbitcoin
#endif
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