uhs/twophase/locking_shard/messages.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_LOCKING_SHARD_MESSAGES_H_
#define OPENCBDC_TX_SRC_LOCKING_SHARD_MESSAGES_H_
 
#include "interface.hpp"
 
namespace cbdc::locking_shard::rpc {
    using lock_params = std::vector<tx>;
    using apply_params = std::vector<bool>;
    struct discard_params {
        constexpr auto operator==(const discard_params& /* rhs */) const
            -> bool {
            return true;
        };
    };
 
    struct request {
        hash_t m_dtx_id{};
        std::variant<lock_params, apply_params, discard_params> m_params{};
 
        auto operator==(const request& rhs) const -> bool;
    };
 
    using lock_response = std::vector<bool>;
    struct apply_response {
        constexpr auto operator==(const apply_response& /* rhs */) const
            -> bool {
            return true;
        };
    };
    struct discard_response {
        constexpr auto operator==(const discard_response& /* rhs */) const
            -> bool {
            return true;
        };
    };
 
    using response
        = std::variant<lock_response, apply_response, discard_response>;
}
 
#endif