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https://github.com/monero-project/monero.git
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b766014933
This makes it easier to avoid bugs on the caller side if errors are represented by non empty strings. This fixes the refresh height setting in new wallets when no daemon is running.
222 lines
8.8 KiB
C++
222 lines
8.8 KiB
C++
// Copyright (c) 2017-2018, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "node_rpc_proxy.h"
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#include "rpc/core_rpc_server_commands_defs.h"
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#include "common/json_util.h"
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#include "storages/http_abstract_invoke.h"
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using namespace epee;
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namespace tools
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{
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static const std::chrono::seconds rpc_timeout = std::chrono::minutes(3) + std::chrono::seconds(30);
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NodeRPCProxy::NodeRPCProxy(epee::net_utils::http::http_simple_client &http_client, boost::mutex &mutex)
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: m_http_client(http_client)
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, m_daemon_rpc_mutex(mutex)
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{
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invalidate();
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}
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void NodeRPCProxy::invalidate()
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{
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m_height = 0;
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for (size_t n = 0; n < 256; ++n)
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m_earliest_height[n] = 0;
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m_dynamic_base_fee_estimate = 0;
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m_dynamic_base_fee_estimate_cached_height = 0;
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m_dynamic_base_fee_estimate_grace_blocks = 0;
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m_fee_quantization_mask = 1;
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m_rpc_version = 0;
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m_target_height = 0;
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m_block_weight_limit = 0;
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m_get_info_time = 0;
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}
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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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if (m_rpc_version == 0)
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{
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cryptonote::COMMAND_RPC_GET_VERSION::request req_t = AUTO_VAL_INIT(req_t);
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cryptonote::COMMAND_RPC_GET_VERSION::response resp_t = AUTO_VAL_INIT(resp_t);
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m_daemon_rpc_mutex.lock();
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bool r = net_utils::invoke_http_json_rpc("/json_rpc", "get_version", 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"), "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.status != CORE_RPC_STATUS_BUSY, resp_t.status, "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.status == CORE_RPC_STATUS_OK, resp_t.status, "Failed to get daemon RPC version");
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m_rpc_version = resp_t.version;
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}
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rpc_version = m_rpc_version;
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return boost::optional<std::string>();
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}
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void NodeRPCProxy::set_height(uint64_t h)
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{
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m_height = h;
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}
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boost::optional<std::string> NodeRPCProxy::get_info() const
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{
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const time_t now = time(NULL);
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if (now >= m_get_info_time + 30) // re-cache every 30 seconds
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{
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cryptonote::COMMAND_RPC_GET_INFO::request req_t = AUTO_VAL_INIT(req_t);
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cryptonote::COMMAND_RPC_GET_INFO::response resp_t = AUTO_VAL_INIT(resp_t);
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m_daemon_rpc_mutex.lock();
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bool r = net_utils::invoke_http_json_rpc("/json_rpc", "get_info", 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"), "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.status != CORE_RPC_STATUS_BUSY, resp_t.status, "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.status == CORE_RPC_STATUS_OK, resp_t.status, "Failed to get target blockchain height");
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m_height = resp_t.height;
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m_target_height = resp_t.target_height;
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m_block_weight_limit = resp_t.block_weight_limit ? resp_t.block_weight_limit : resp_t.block_size_limit;
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m_get_info_time = now;
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}
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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) const
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{
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auto res = get_info();
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if (res)
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return res;
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height = m_height;
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return boost::optional<std::string>();
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}
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boost::optional<std::string> NodeRPCProxy::get_target_height(uint64_t &height) const
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{
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auto res = get_info();
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if (res)
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return res;
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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_block_weight_limit(uint64_t &block_weight_limit) const
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{
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auto res = get_info();
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if (res)
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return res;
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block_weight_limit = m_block_weight_limit;
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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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cryptonote::COMMAND_RPC_HARD_FORK_INFO::request req_t = AUTO_VAL_INIT(req_t);
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cryptonote::COMMAND_RPC_HARD_FORK_INFO::response resp_t = AUTO_VAL_INIT(resp_t);
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m_daemon_rpc_mutex.lock();
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req_t.version = version;
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bool r = net_utils::invoke_http_json_rpc("/json_rpc", "hard_fork_info", 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"), "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.status != CORE_RPC_STATUS_BUSY, resp_t.status, "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.status == CORE_RPC_STATUS_OK, resp_t.status, "Failed to get hard fork status");
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m_earliest_height[version] = resp_t.earliest_height;
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}
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earliest_height = m_earliest_height[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_base_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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boost::optional<std::string> result = get_height(height);
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if (result)
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return result;
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if (m_dynamic_base_fee_estimate_cached_height != height || m_dynamic_base_fee_estimate_grace_blocks != grace_blocks)
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{
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cryptonote::COMMAND_RPC_GET_BASE_FEE_ESTIMATE::request req_t = AUTO_VAL_INIT(req_t);
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cryptonote::COMMAND_RPC_GET_BASE_FEE_ESTIMATE::response resp_t = AUTO_VAL_INIT(resp_t);
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m_daemon_rpc_mutex.lock();
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req_t.grace_blocks = grace_blocks;
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bool r = net_utils::invoke_http_json_rpc("/json_rpc", "get_fee_estimate", 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"), "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.status != CORE_RPC_STATUS_BUSY, resp_t.status, "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.status == CORE_RPC_STATUS_OK, resp_t.status, "Failed to get fee estimate");
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m_dynamic_base_fee_estimate = resp_t.fee;
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m_dynamic_base_fee_estimate_cached_height = height;
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m_dynamic_base_fee_estimate_grace_blocks = grace_blocks;
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m_fee_quantization_mask = resp_t.quantization_mask;
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}
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fee = m_dynamic_base_fee_estimate;
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return boost::optional<std::string>();
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}
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boost::optional<std::string> NodeRPCProxy::get_fee_quantization_mask(uint64_t &fee_quantization_mask) const
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{
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uint64_t height;
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boost::optional<std::string> result = get_height(height);
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if (result)
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return result;
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if (m_dynamic_base_fee_estimate_cached_height != height)
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{
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cryptonote::COMMAND_RPC_GET_BASE_FEE_ESTIMATE::request req_t = AUTO_VAL_INIT(req_t);
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cryptonote::COMMAND_RPC_GET_BASE_FEE_ESTIMATE::response resp_t = AUTO_VAL_INIT(resp_t);
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m_daemon_rpc_mutex.lock();
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req_t.grace_blocks = m_dynamic_base_fee_estimate_grace_blocks;
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bool r = net_utils::invoke_http_json_rpc("/json_rpc", "get_fee_estimate", 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"), "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.status != CORE_RPC_STATUS_BUSY, resp_t.status, "Failed to connect to daemon");
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CHECK_AND_ASSERT_MES(resp_t.status == CORE_RPC_STATUS_OK, resp_t.status, "Failed to get fee estimate");
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m_dynamic_base_fee_estimate = resp_t.fee;
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m_dynamic_base_fee_estimate_cached_height = height;
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m_fee_quantization_mask = resp_t.quantization_mask;
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}
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fee_quantization_mask = m_fee_quantization_mask;
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if (fee_quantization_mask == 0)
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{
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MERROR("Fee quantization mask is 0, forcing to 1");
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fee_quantization_mask = 1;
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}
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return boost::optional<std::string>();
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}
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}
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