parsec/ticket_machine/interface.hpp

Go to the documentation of this file.

// 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_PARSEC_TICKET_MACHINE_INTERFACE_H_
#define OPENCBDC_TX_SRC_PARSEC_TICKET_MACHINE_INTERFACE_H_
 
#include <cstdint>
#include <functional>
#include <optional>
#include <variant>
 
namespace cbdc::parsec::ticket_machine {
    using ticket_number_type = uint64_t;
 
    class interface {
      public:
        virtual ~interface() = default;
 
        interface() = default;
        interface(const interface&) = delete;
        auto operator=(const interface&) -> interface& = delete;
        interface(interface&&) = delete;
        auto operator=(interface&&) -> interface& = delete;
 
        enum class error_code : uint8_t {
        };
 
        using ticket_number_range_type
            = std::pair<ticket_number_type, ticket_number_type>;
        using get_ticket_number_return_type
            = std::variant<ticket_number_range_type, error_code>;
        using get_ticket_number_callback_type
            = std::function<void(get_ticket_number_return_type)>;
 
        virtual auto
        get_ticket_number(get_ticket_number_callback_type result_callback)
            -> bool
            = 0;
    };
}
 
#endif