istream_serializer.hpp

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// Copyright (c) 2021 MIT Digital Currency Initiative,
//                    Federal Reserve Bank of Boston
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#ifndef OPENCBDC_TX_SRC_SERIALIZATION_ISTREAM_SERIALIZER_H_
#define OPENCBDC_TX_SRC_SERIALIZATION_ISTREAM_SERIALIZER_H_
 
#include "stream_serializer.hpp"
 
#include <istream>
 
namespace cbdc {
    class istream_serializer final : public stream_serializer {
      public:
        explicit istream_serializer(std::istream& s);
 
        [[nodiscard]] auto end_of_buffer() const -> bool final;
 
        void advance_cursor(size_t len) final;
 
        void reset() final;
 
        auto write(const void* data, size_t len) -> bool final;
 
        auto read(void* data, size_t len) -> bool final;
 
      private:
        std::istream& m_str;
 
        using off_type = std::remove_reference_t<decltype(m_str)>::off_type;
    };
}
 
#endif