rpc: new function and RPC to get alternative chain info
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29735c8f8f
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@ -3880,6 +3880,38 @@ std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t>> Blockchain:: get_ou
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return m_db->get_output_histogram(amounts, unlocked, recent_cutoff);
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}
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std::list<std::pair<Blockchain::block_extended_info,uint64_t>> Blockchain::get_alternative_chains() const
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{
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std::list<std::pair<Blockchain::block_extended_info,uint64_t>> chains;
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for (const auto &i: m_alternative_chains)
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{
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const crypto::hash &top = i.first;
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bool found = false;
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for (const auto &j: m_alternative_chains)
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{
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if (j.second.bl.prev_id == top)
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{
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found = true;
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break;
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}
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}
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if (!found)
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{
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uint64_t length = 1;
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auto h = i.second.bl.prev_id;
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blocks_ext_by_hash::const_iterator prev;
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while ((prev = m_alternative_chains.find(h)) != m_alternative_chains.end())
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{
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h = prev->second.bl.prev_id;
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++length;
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}
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chains.push_back(std::make_pair(i.second, length));
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}
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}
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return chains;
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}
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void Blockchain::cancel()
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{
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m_cancel = true;
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@ -844,6 +844,13 @@ namespace cryptonote
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void block_longhash_worker(const uint64_t height, const std::vector<block> &blocks,
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std::unordered_map<crypto::hash, crypto::hash> &map) const;
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/**
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* @brief returns a set of known alternate chains
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*
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* @return a list of chains
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*/
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std::list<std::pair<block_extended_info,uint64_t>> get_alternative_chains() const;
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void cancel();
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private:
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@ -482,4 +482,15 @@ bool t_command_parser_executor::print_coinbase_tx_sum(const std::vector<std::str
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return m_executor.print_coinbase_tx_sum(height, count);
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}
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bool t_command_parser_executor::alt_chain_info(const std::vector<std::string>& args)
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{
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if(args.size())
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{
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std::cout << "No parameters allowed" << std::endl;
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return false;
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}
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return m_executor.alt_chain_info();
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}
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} // namespace daemonize
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@ -119,6 +119,8 @@ public:
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bool output_histogram(const std::vector<std::string>& args);
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bool print_coinbase_tx_sum(const std::vector<std::string>& args);
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bool alt_chain_info(const std::vector<std::string>& args);
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};
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} // namespace daemonize
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@ -225,6 +225,11 @@ t_command_server::t_command_server(
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, std::bind(&t_command_parser_executor::print_coinbase_tx_sum, &m_parser, p::_1)
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, "Print sum of coinbase transactions (start height, block count)"
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);
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m_command_lookup.set_handler(
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"alt_chain_info"
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, std::bind(&t_command_parser_executor::alt_chain_info, &m_parser, p::_1)
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, "Print information about alternative chains"
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);
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}
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bool t_command_server::process_command_str(const std::string& cmd)
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@ -1367,5 +1367,38 @@ bool t_rpc_command_executor::print_coinbase_tx_sum(uint64_t height, uint64_t cou
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return true;
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}
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bool t_rpc_command_executor::alt_chain_info()
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{
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cryptonote::COMMAND_RPC_GET_ALTERNATE_CHAINS::request req;
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cryptonote::COMMAND_RPC_GET_ALTERNATE_CHAINS::response res;
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epee::json_rpc::error error_resp;
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std::string fail_message = "Unsuccessful";
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if (m_is_rpc)
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{
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if (!m_rpc_client->json_rpc_request(req, res, "get_alternate_chains", fail_message.c_str()))
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{
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return true;
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}
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}
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else
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{
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if (!m_rpc_server->on_get_alternate_chains(req, res, error_resp))
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{
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tools::fail_msg_writer() << fail_message.c_str();
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return true;
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}
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}
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tools::msg_writer() << boost::lexical_cast<std::string>(res.chains.size()) << " alternate chains found:";
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for (const auto chain: res.chains)
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{
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tools::msg_writer() << chain.length << " blocks long, branching at height " << (chain.height - chain.length + 1)
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<< ", difficulty " << chain.difficulty << ": " << chain.block_hash;
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}
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return true;
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}
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}// namespace daemonize
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@ -137,6 +137,8 @@ public:
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bool output_histogram(uint64_t min_count, uint64_t max_count);
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bool print_coinbase_tx_sum(uint64_t height, uint64_t count);
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bool alt_chain_info();
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};
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} // namespace daemonize
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@ -1337,6 +1337,24 @@ namespace cryptonote
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return true;
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}
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//------------------------------------------------------------------------------------------------------------------------------
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bool core_rpc_server::on_get_alternate_chains(const COMMAND_RPC_GET_ALTERNATE_CHAINS::request& req, COMMAND_RPC_GET_ALTERNATE_CHAINS::response& res, epee::json_rpc::error& error_resp)
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{
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try
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{
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std::list<std::pair<Blockchain::block_extended_info, uint64_t>> chains = m_core.get_blockchain_storage().get_alternative_chains();
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for (const auto &i: chains)
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{
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res.chains.push_back(COMMAND_RPC_GET_ALTERNATE_CHAINS::chain_info{epee::string_tools::pod_to_hex(get_block_hash(i.first.bl)), i.first.height, i.second, i.first.cumulative_difficulty});
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}
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res.status = CORE_RPC_STATUS_OK;
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}
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catch (...)
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{
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res.status = "Error retrieving alternate chains";
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}
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return true;
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}
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//------------------------------------------------------------------------------------------------------------------------------
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bool core_rpc_server::on_out_peers(const COMMAND_RPC_OUT_PEERS::request& req, COMMAND_RPC_OUT_PEERS::response& res)
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{
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// TODO
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@ -118,6 +118,7 @@ namespace cryptonote
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MAP_JON_RPC_WE("get_version", on_get_version, COMMAND_RPC_GET_VERSION)
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MAP_JON_RPC_WE("get_coinbase_tx_sum", on_get_coinbase_tx_sum, COMMAND_RPC_GET_COINBASE_TX_SUM)
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MAP_JON_RPC_WE("get_fee_estimate", on_get_per_kb_fee_estimate, COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE)
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MAP_JON_RPC_WE_IF("get_alternate_chains",on_get_alternate_chains, COMMAND_RPC_GET_ALTERNATE_CHAINS, !m_restricted)
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END_JSON_RPC_MAP()
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END_URI_MAP2()
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@ -166,6 +167,7 @@ namespace cryptonote
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bool on_get_version(const COMMAND_RPC_GET_VERSION::request& req, COMMAND_RPC_GET_VERSION::response& res, epee::json_rpc::error& error_resp);
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bool on_get_coinbase_tx_sum(const COMMAND_RPC_GET_COINBASE_TX_SUM::request& req, COMMAND_RPC_GET_COINBASE_TX_SUM::response& res, epee::json_rpc::error& error_resp);
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bool on_get_per_kb_fee_estimate(const COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE::request& req, COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE::response& res, epee::json_rpc::error& error_resp);
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bool on_get_alternate_chains(const COMMAND_RPC_GET_ALTERNATE_CHAINS::request& req, COMMAND_RPC_GET_ALTERNATE_CHAINS::response& res, epee::json_rpc::error& error_resp);
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//-----------------------
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private:
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@ -1336,4 +1336,39 @@ namespace cryptonote
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END_KV_SERIALIZE_MAP()
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};
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};
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struct COMMAND_RPC_GET_ALTERNATE_CHAINS
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{
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struct request
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{
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BEGIN_KV_SERIALIZE_MAP()
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END_KV_SERIALIZE_MAP()
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};
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struct chain_info
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{
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std::string block_hash;
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uint64_t height;
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uint64_t length;
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uint64_t difficulty;
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BEGIN_KV_SERIALIZE_MAP()
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KV_SERIALIZE(block_hash)
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KV_SERIALIZE(height)
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KV_SERIALIZE(length)
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KV_SERIALIZE(difficulty)
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END_KV_SERIALIZE_MAP()
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};
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struct response
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{
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std::string status;
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std::list<chain_info> chains;
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BEGIN_KV_SERIALIZE_MAP()
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KV_SERIALIZE(status)
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KV_SERIALIZE(chains)
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END_KV_SERIALIZE_MAP()
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};
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};
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}
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