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node_rpc_proxy: add a proxy for target height
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ab594cfee9
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@ -48,6 +48,8 @@ NodeRPCProxy::NodeRPCProxy(epee::net_utils::http::http_simple_client &http_clien
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, m_dynamic_per_kb_fee_estimate_cached_height(0)
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, m_dynamic_per_kb_fee_estimate_grace_blocks(0)
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, m_rpc_version(0)
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, m_target_height(0)
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, m_target_height_time(0)
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{}
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void NodeRPCProxy::invalidate()
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@ -60,9 +62,11 @@ void NodeRPCProxy::invalidate()
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m_dynamic_per_kb_fee_estimate_cached_height = 0;
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m_dynamic_per_kb_fee_estimate_grace_blocks = 0;
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m_rpc_version = 0;
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m_target_height = 0;
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m_target_height_time = 0;
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}
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boost::optional<std::string> NodeRPCProxy::get_rpc_version(uint32_t &rpc_version)
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boost::optional<std::string> NodeRPCProxy::get_rpc_version(uint32_t &rpc_version) const
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{
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const time_t now = time(NULL);
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if (m_rpc_version == 0)
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@ -84,7 +88,7 @@ boost::optional<std::string> NodeRPCProxy::get_rpc_version(uint32_t &rpc_version
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return boost::optional<std::string>();
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}
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boost::optional<std::string> NodeRPCProxy::get_height(uint64_t &height)
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boost::optional<std::string> NodeRPCProxy::get_height(uint64_t &height) const
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{
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const time_t now = time(NULL);
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if (m_height == 0 || now >= m_height_time + 30) // re-cache every 30 seconds
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@ -110,7 +114,32 @@ void NodeRPCProxy::set_height(uint64_t h)
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m_height = h;
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}
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boost::optional<std::string> NodeRPCProxy::get_earliest_height(uint8_t version, uint64_t &earliest_height)
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boost::optional<std::string> NodeRPCProxy::get_target_height(uint64_t &height) const
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{
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const time_t now = time(NULL);
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if (m_height == 0 || now >= m_height_time + 30) // re-cache every 30 seconds
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{
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epee::json_rpc::request<cryptonote::COMMAND_RPC_GET_INFO::request> req_t = AUTO_VAL_INIT(req_t);
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epee::json_rpc::response<cryptonote::COMMAND_RPC_GET_INFO::response, std::string> resp_t = AUTO_VAL_INIT(resp_t);
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req_t.jsonrpc = "2.0";
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req_t.id = epee::serialization::storage_entry(0);
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req_t.method = "get_info";
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m_daemon_rpc_mutex.lock();
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bool r = net_utils::invoke_http_json("/json_rpc", req_t, resp_t, m_http_client, rpc_timeout);
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m_daemon_rpc_mutex.unlock();
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CHECK_AND_ASSERT_MES(r, std::string(), "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.result.status != CORE_RPC_STATUS_BUSY, resp_t.result.status, "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.result.status == CORE_RPC_STATUS_OK, resp_t.result.status, "Failed to get target blockchain height");
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m_target_height = resp_t.result.target_height;
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m_target_height_time = now;
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}
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height = m_target_height;
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return boost::optional<std::string>();
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}
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boost::optional<std::string> NodeRPCProxy::get_earliest_height(uint8_t version, uint64_t &earliest_height) const
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{
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if (m_earliest_height[version] == 0)
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{
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@ -134,7 +163,7 @@ boost::optional<std::string> NodeRPCProxy::get_earliest_height(uint8_t version,
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return boost::optional<std::string>();
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}
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boost::optional<std::string> NodeRPCProxy::get_dynamic_per_kb_fee_estimate(uint64_t grace_blocks, uint64_t &fee)
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boost::optional<std::string> NodeRPCProxy::get_dynamic_per_kb_fee_estimate(uint64_t grace_blocks, uint64_t &fee) const
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{
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uint64_t height;
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@ -43,23 +43,26 @@ public:
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void invalidate();
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boost::optional<std::string> get_rpc_version(uint32_t &version);
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boost::optional<std::string> get_height(uint64_t &height);
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boost::optional<std::string> get_rpc_version(uint32_t &version) const;
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boost::optional<std::string> get_height(uint64_t &height) const;
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void set_height(uint64_t h);
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boost::optional<std::string> get_earliest_height(uint8_t version, uint64_t &earliest_height);
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boost::optional<std::string> get_dynamic_per_kb_fee_estimate(uint64_t grace_blocks, uint64_t &fee);
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boost::optional<std::string> get_target_height(uint64_t &height) const;
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boost::optional<std::string> get_earliest_height(uint8_t version, uint64_t &earliest_height) const;
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boost::optional<std::string> get_dynamic_per_kb_fee_estimate(uint64_t grace_blocks, uint64_t &fee) const;
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private:
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epee::net_utils::http::http_simple_client &m_http_client;
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boost::mutex &m_daemon_rpc_mutex;
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uint64_t m_height;
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time_t m_height_time;
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uint64_t m_earliest_height[256];
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uint64_t m_dynamic_per_kb_fee_estimate;
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uint64_t m_dynamic_per_kb_fee_estimate_cached_height;
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uint64_t m_dynamic_per_kb_fee_estimate_grace_blocks;
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uint32_t m_rpc_version;
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mutable uint64_t m_height;
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mutable time_t m_height_time;
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mutable uint64_t m_earliest_height[256];
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mutable uint64_t m_dynamic_per_kb_fee_estimate;
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mutable uint64_t m_dynamic_per_kb_fee_estimate_cached_height;
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mutable uint64_t m_dynamic_per_kb_fee_estimate_grace_blocks;
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mutable uint32_t m_rpc_version;
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mutable uint64_t m_target_height;
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mutable time_t m_target_height_time;
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};
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}
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