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node_rpc_proxy: add a proxy for target height

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This commit is contained in:
moneromooo-monero 2017-08-02 14:43:47 +01:00
parent ab594cfee9
commit f1307bbd7b
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GPG key ID: 686F07454D6CEFC3
2 changed files with 47 additions and 15 deletions
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37
src/wallet/node_rpc_proxy.cpp
View file

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

25
src/wallet/node_rpc_proxy.h
View file

@ -43,23 +43,26 @@ public:
void invalidate();
boost::optional<std::string> get_rpc_version(uint32_t &version);
boost::optional<std::string> get_height(uint64_t &height);
boost::optional<std::string> get_rpc_version(uint32_t &version) const;
boost::optional<std::string> get_height(uint64_t &height) const;
void set_height(uint64_t h);
boost::optional<std::string> get_earliest_height(uint8_t version, uint64_t &earliest_height);
boost::optional<std::string> get_dynamic_per_kb_fee_estimate(uint64_t grace_blocks, uint64_t &fee);
boost::optional<std::string> get_target_height(uint64_t &height) const;
boost::optional<std::string> get_earliest_height(uint8_t version, uint64_t &earliest_height) const;
boost::optional<std::string> get_dynamic_per_kb_fee_estimate(uint64_t grace_blocks, uint64_t &fee) const;
private:
epee::net_utils::http::http_simple_client &m_http_client;
boost::mutex &m_daemon_rpc_mutex;
uint64_t m_height;
time_t m_height_time;
uint64_t m_earliest_height[256];
uint64_t m_dynamic_per_kb_fee_estimate;
uint64_t m_dynamic_per_kb_fee_estimate_cached_height;
uint64_t m_dynamic_per_kb_fee_estimate_grace_blocks;
uint32_t m_rpc_version;
mutable uint64_t m_height;
mutable time_t m_height_time;
mutable uint64_t m_earliest_height[256];
mutable uint64_t m_dynamic_per_kb_fee_estimate;
mutable uint64_t m_dynamic_per_kb_fee_estimate_cached_height;
mutable uint64_t m_dynamic_per_kb_fee_estimate_grace_blocks;
mutable uint32_t m_rpc_version;
mutable uint64_t m_target_height;
mutable time_t m_target_height_time;
};
}