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Merge pull request #1276
18f66f4wallet: use the dynamic per kB fee (moneromooo-monero)e6deb8arpc: add a dynamic fee estimation RPC call (moneromooo-monero)82dbba1core: dynamic fee algorithm from ArticMine (moneromooo-monero)
This commit is contained in:
Riccardo Spagni
commit
0fa6cbef3f
11 changed files with 324 additions and 9 deletions
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@ -64,6 +64,8 @@
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#define FEE_PER_KB_OLD ((uint64_t)10000000000) // pow(10, 10)
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#define FEE_PER_KB ((uint64_t)2000000000) // 2 * pow(10, 9)
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#define DYNAMIC_FEE_PER_KB_BASE_FEE ((uint64_t)2000000000) // 2 * pow(10,9)
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#define DYNAMIC_FEE_PER_KB_BASE_BLOCK_REWARD ((uint64_t)10000000000000) // 10 * pow(10,12)
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#define ORPHANED_BLOCKS_MAX_COUNT 100
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@ -122,6 +124,8 @@
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#define THREAD_STACK_SIZE 5 * 1024 * 1024
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#define HF_VERSION_DYNAMIC_FEE 4
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// New constants are intended to go here
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namespace config
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{
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@ -46,6 +46,7 @@
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#include "misc_language.h"
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#include "profile_tools.h"
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#include "file_io_utils.h"
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#include "common/int-util.h"
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#include "common/boost_serialization_helper.h"
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#include "warnings.h"
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#include "crypto/hash.h"
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@ -2708,6 +2709,87 @@ void Blockchain::check_ring_signature(const crypto::hash &tx_prefix_hash, const
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result = crypto::check_ring_signature(tx_prefix_hash, key_image, p_output_keys, sig.data()) ? 1 : 0;
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}
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//------------------------------------------------------------------
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uint64_t Blockchain::get_dynamic_per_kb_fee(uint64_t block_reward, size_t median_block_size)
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{
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if (median_block_size < CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2)
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median_block_size = CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2;
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uint64_t unscaled_fee_per_kb = (DYNAMIC_FEE_PER_KB_BASE_FEE * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 / median_block_size);
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uint64_t hi, lo = mul128(unscaled_fee_per_kb, block_reward, &hi);
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static_assert(DYNAMIC_FEE_PER_KB_BASE_BLOCK_REWARD % 1000000 == 0, "DYNAMIC_FEE_PER_KB_BASE_BLOCK_REWARD must be divisible by 1000000");
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static_assert(DYNAMIC_FEE_PER_KB_BASE_BLOCK_REWARD / 1000000 <= std::numeric_limits<uint32_t>::max(), "DYNAMIC_FEE_PER_KB_BASE_BLOCK_REWARD is too large");
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// divide in two steps, since the divisor must be 32 bits, but DYNAMIC_FEE_PER_KB_BASE_BLOCK_REWARD isn't
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div128_32(hi, lo, DYNAMIC_FEE_PER_KB_BASE_BLOCK_REWARD / 1000000, &hi, &lo);
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div128_32(hi, lo, 1000000, &hi, &lo);
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assert(hi == 0);
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return lo;
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}
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//------------------------------------------------------------------
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bool Blockchain::check_fee(size_t blob_size, uint64_t fee) const
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{
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const uint8_t version = get_current_hard_fork_version();
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uint64_t fee_per_kb;
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if (version < HF_VERSION_DYNAMIC_FEE)
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{
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fee_per_kb = FEE_PER_KB;
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}
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else
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{
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uint64_t median = m_current_block_cumul_sz_limit / 2;
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uint64_t already_generated_coins = m_db->height() ? m_db->get_block_already_generated_coins(m_db->height() - 1) : 0;
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uint64_t base_reward;
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if (!get_block_reward(median, 1, already_generated_coins, base_reward, version))
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return false;
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fee_per_kb = get_dynamic_per_kb_fee(base_reward, median);
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}
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LOG_PRINT_L2("Using " << print_money(fee) << "/kB fee");
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uint64_t needed_fee = blob_size / 1024;
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needed_fee += (blob_size % 1024) ? 1 : 0;
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needed_fee *= fee_per_kb;
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if (fee < needed_fee)
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{
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LOG_PRINT_L1("transaction fee is not enough: " << print_money(fee) << ", minimum fee: " << print_money(needed_fee));
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return false;
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}
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return true;
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}
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//------------------------------------------------------------------
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uint64_t Blockchain::get_dynamic_per_kb_fee_estimate(uint64_t grace_blocks) const
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{
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const uint8_t version = get_current_hard_fork_version();
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if (version < HF_VERSION_DYNAMIC_FEE)
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return FEE_PER_KB;
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if (grace_blocks >= CRYPTONOTE_REWARD_BLOCKS_WINDOW)
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grace_blocks = CRYPTONOTE_REWARD_BLOCKS_WINDOW - 1;
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std::vector<size_t> sz;
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get_last_n_blocks_sizes(sz, CRYPTONOTE_REWARD_BLOCKS_WINDOW - grace_blocks);
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for (size_t i = 0; i < grace_blocks; ++i)
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sz.push_back(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2);
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uint64_t median = epee::misc_utils::median(sz);
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if(median <= CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2)
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median = CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2;
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uint64_t already_generated_coins = m_db->height() ? m_db->get_block_already_generated_coins(m_db->height() - 1) : 0;
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uint64_t base_reward;
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if (!get_block_reward(median, 1, already_generated_coins, base_reward, version))
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return false;
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uint64_t fee = get_dynamic_per_kb_fee(base_reward, median);
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LOG_PRINT_L2("Estimating " << grace_blocks << "-block fee at " << print_money(fee) << "/kB");
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return fee;
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}
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//------------------------------------------------------------------
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// This function checks to see if a tx is unlocked. unlock_time is either
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// a block index or a unix time.
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@ -512,6 +512,47 @@ namespace cryptonote
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*/
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bool check_tx_inputs(transaction& tx, uint64_t& pmax_used_block_height, crypto::hash& max_used_block_id, tx_verification_context &tvc, bool kept_by_block = false);
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/**
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* @brief get dynamic per kB fee for a given block size
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*
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* The dynamic fee is based on the block size in a past window, and
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* the current block reward. It is expressed by kB.
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*
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* @param block_reward the current block reward
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* @param median_block_size the median blob's size in the past window
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*
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* @return the per kB fee
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*/
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static uint64_t get_dynamic_per_kb_fee(uint64_t block_reward, size_t median_block_size);
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/**
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* @brief get dynamic per kB fee estimate for the next few blocks
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*
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* The dynamic fee is based on the block size in a past window, and
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* the current block reward. It is expressed by kB. This function
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* calculates an estimate for a dynamic fee which will be valid for
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* the next grace_blocks
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*
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* @param grace_blocks number of blocks we want the fee to be valid for
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*
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* @return the per kB fee estimate
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*/
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uint64_t get_dynamic_per_kb_fee_estimate(uint64_t grace_blocks) const;
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/**
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* @brief validate a transaction's fee
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*
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* This function validates the fee is enough for the transaction.
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* This is based on the size of the transaction blob, and, after a
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* height threshold, on the average size of transaction in a past window
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*
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* @param blob_size the transaction blob's size
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* @param fee the fee
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*
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* @return true if the fee is enough, false otherwise
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*/
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bool check_fee(size_t blob_size, uint64_t fee) const;
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/**
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* @brief check that a transaction's outputs conform to current standards
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*
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@ -133,12 +133,8 @@ namespace cryptonote
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fee = tx.rct_signatures.txnFee;
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}
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uint64_t needed_fee = blob_size / 1024;
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needed_fee += (blob_size % 1024) ? 1 : 0;
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needed_fee *= FEE_PER_KB;
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if (!kept_by_block && fee < needed_fee)
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if (!kept_by_block && !m_blockchain.check_fee(blob_size, fee))
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{
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LOG_PRINT_L1("transaction fee is not enough: " << print_money(fee) << ", minimum fee: " << print_money(needed_fee));
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tvc.m_verifivation_failed = true;
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tvc.m_fee_too_low = true;
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return false;
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@ -1283,6 +1283,13 @@ 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_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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{
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res.fee = m_core.get_blockchain_storage().get_dynamic_per_kb_fee_estimate(req.grace_blocks);
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res.status = CORE_RPC_STATUS_OK;
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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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@ -116,6 +116,7 @@ namespace cryptonote
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MAP_JON_RPC_WE("get_output_histogram", on_get_output_histogram, COMMAND_RPC_GET_OUTPUT_HISTOGRAM)
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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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END_JSON_RPC_MAP()
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END_URI_MAP2()
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@ -162,6 +163,7 @@ namespace cryptonote
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bool on_get_output_histogram(const COMMAND_RPC_GET_OUTPUT_HISTOGRAM::request& req, COMMAND_RPC_GET_OUTPUT_HISTOGRAM::response& res, epee::json_rpc::error& error_resp);
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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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//-----------------------
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private:
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@ -1266,4 +1266,27 @@ 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_PER_KB_FEE_ESTIMATE
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{
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struct request
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{
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uint64_t grace_blocks;
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BEGIN_KV_SERIALIZE_MAP()
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KV_SERIALIZE(grace_blocks)
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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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uint64_t fee;
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BEGIN_KV_SERIALIZE_MAP()
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KV_SERIALIZE(status)
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KV_SERIALIZE(fee)
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END_KV_SERIALIZE_MAP()
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};
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};
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}
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@ -80,6 +80,8 @@ using namespace cryptonote;
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#define RECENT_OUTPUT_RATIO (0.25) // 25% of outputs are from the recent zone
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#define RECENT_OUTPUT_ZONE (5 * 86400) // last 5 days are the recent zone
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#define FEE_ESTIMATE_GRACE_BLOCKS 10 // estimate fee valid for that many blocks
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#define KILL_IOSERVICE() \
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do { \
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work.reset(); \
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@ -2765,6 +2767,40 @@ uint64_t wallet2::get_fee_multiplier(uint32_t priority, bool use_new_fee) const
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return 1;
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}
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//----------------------------------------------------------------------------------------------------
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uint64_t wallet2::get_dynamic_per_kb_fee_estimate()
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{
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epee::json_rpc::request<cryptonote::COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE::request> req_t = AUTO_VAL_INIT(req_t);
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epee::json_rpc::response<cryptonote::COMMAND_RPC_GET_PER_KB_FEE_ESTIMATE::response, std::string> resp_t = AUTO_VAL_INIT(resp_t);
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m_daemon_rpc_mutex.lock();
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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_fee_estimate";
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req_t.params.grace_blocks = FEE_ESTIMATE_GRACE_BLOCKS;
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bool r = net_utils::invoke_http_json_remote_command2(m_daemon_address + "/json_rpc", req_t, resp_t, m_http_client);
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m_daemon_rpc_mutex.unlock();
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CHECK_AND_ASSERT_THROW_MES(r, "Failed to connect to daemon");
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CHECK_AND_ASSERT_THROW_MES(resp_t.result.status != CORE_RPC_STATUS_BUSY, "Failed to connect to daemon");
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CHECK_AND_ASSERT_THROW_MES(resp_t.result.status == CORE_RPC_STATUS_OK, "Failed to get fee estimate");
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return resp_t.result.fee;
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}
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//----------------------------------------------------------------------------------------------------
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uint64_t wallet2::get_per_kb_fee()
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{
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bool use_dyn_fee = use_fork_rules(HF_VERSION_DYNAMIC_FEE, -720 * 14);
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if (!use_dyn_fee)
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return FEE_PER_KB;
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try
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{
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return get_dynamic_per_kb_fee_estimate();
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}
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catch (...)
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{
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LOG_PRINT_L1("Failed to query per kB fee, using " << print_money(FEE_PER_KB));
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return FEE_PER_KB;
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}
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}
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//----------------------------------------------------------------------------------------------------
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// separated the call(s) to wallet2::transfer into their own function
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//
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// this function will make multiple calls to wallet2::transfer if multiple
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@ -2774,7 +2810,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions(std::vector<crypto
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const std::vector<size_t> unused_transfers_indices = select_available_outputs_from_histogram(fake_outs_count + 1, true, true, trusted_daemon);
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const bool use_new_fee = use_fork_rules(3, -720 * 14);
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const uint64_t fee_per_kb = use_new_fee ? FEE_PER_KB : FEE_PER_KB_OLD;
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const uint64_t fee_per_kb = get_per_kb_fee();
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const uint64_t fee_multiplier = get_fee_multiplier(priority, use_new_fee);
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// failsafe split attempt counter
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@ -3495,7 +3531,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_2(std::vector<cryp
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const bool use_rct = use_fork_rules(4, 0);
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const bool use_new_fee = use_fork_rules(3, -720 * 14);
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const uint64_t fee_per_kb = use_new_fee ? FEE_PER_KB : FEE_PER_KB_OLD;
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const uint64_t fee_per_kb = get_per_kb_fee();
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const uint64_t fee_multiplier = get_fee_multiplier(priority, use_new_fee);
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// throw if attempting a transaction with no destinations
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@ -3777,7 +3813,7 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_from(const crypton
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const bool use_rct = fake_outs_count > 0 && use_fork_rules(4, 0);
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const bool use_new_fee = use_fork_rules(3, -720 * 14);
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const uint64_t fee_per_kb = use_new_fee ? FEE_PER_KB : FEE_PER_KB_OLD;
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const uint64_t fee_per_kb = get_per_kb_fee();
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const uint64_t fee_multiplier = get_fee_multiplier(priority, use_new_fee);
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LOG_PRINT_L2("Starting with " << unused_transfers_indices.size() << " non-dust outputs and " << unused_dust_indices.size() << " dust outputs");
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@ -4083,7 +4119,7 @@ std::vector<wallet2::pending_tx> wallet2::create_unmixable_sweep_transactions(bo
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tx_dust_policy dust_policy(hf1_rules ? 0 : ::config::DEFAULT_DUST_THRESHOLD);
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const bool use_new_fee = use_fork_rules(3, -720 * 14);
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const uint64_t fee_per_kb = use_new_fee ? FEE_PER_KB : FEE_PER_KB_OLD;
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const uint64_t fee_per_kb = get_per_kb_fee();
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// may throw
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std::vector<size_t> unmixable_outputs = select_available_unmixable_outputs(trusted_daemon);
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@ -520,6 +520,8 @@ namespace tools
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uint64_t get_upper_tranaction_size_limit();
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std::vector<uint64_t> get_unspent_amounts_vector();
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uint64_t get_fee_multiplier(uint32_t priority, bool use_new_fee) const;
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uint64_t get_dynamic_per_kb_fee_estimate();
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uint64_t get_per_kb_fee();
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float get_output_relatedness(const transfer_details &td0, const transfer_details &td1) const;
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std::vector<size_t> pick_prefered_rct_inputs(uint64_t needed_money) const;
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void set_spent(size_t idx, uint64_t height);
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@ -39,6 +39,7 @@ set(unit_tests_sources
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dns_resolver.cpp
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epee_boosted_tcp_server.cpp
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epee_levin_protocol_handler_async.cpp
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fee.cpp
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get_xtype_from_string.cpp
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main.cpp
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mnemonics.cpp
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121
tests/unit_tests/fee.cpp
Normal file
121
tests/unit_tests/fee.cpp
Normal file
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@ -0,0 +1,121 @@
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// Copyright (c) 2014-2016, The Monero Project
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//
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||||
// All rights reserved.
|
||||
//
|
||||
// Redistribution and use in source and binary forms, with or without modification, are
|
||||
// permitted provided that the following conditions are met:
|
||||
//
|
||||
// 1. Redistributions of source code must retain the above copyright notice, this list of
|
||||
// conditions and the following disclaimer.
|
||||
//
|
||||
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
||||
// of conditions and the following disclaimer in the documentation and/or other
|
||||
// materials provided with the distribution.
|
||||
//
|
||||
// 3. Neither the name of the copyright holder nor the names of its contributors may be
|
||||
// used to endorse or promote products derived from this software without specific
|
||||
// prior written permission.
|
||||
//
|
||||
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
|
||||
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
||||
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||||
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
||||
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
//
|
||||
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
|
||||
|
||||
#include "gtest/gtest.h"
|
||||
|
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#include "cryptonote_core/blockchain.h"
|
||||
|
||||
using namespace cryptonote;
|
||||
|
||||
namespace
|
||||
{
|
||||
//--------------------------------------------------------------------------------------------------------------------
|
||||
class fee : public ::testing::Test
|
||||
{
|
||||
};
|
||||
|
||||
TEST_F(fee, 10xmr)
|
||||
{
|
||||
// CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 and lower are clamped
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(10000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2), 2000000000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(10000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 / 2), 2000000000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(10000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 / 100), 2000000000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(10000000000000, 1), 2000000000);
|
||||
|
||||
// higher is inverse proportional
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(10000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 2), 2000000000 / 2);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(10000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 10), 2000000000 / 10);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(10000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 1000), 2000000000 / 1000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(10000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 1000000ull), 2000000000 / 1000000);
|
||||
}
|
||||
|
||||
TEST_F(fee, 1xmr)
|
||||
{
|
||||
// CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 and lower are clamped
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(1000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2), 200000000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(1000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 / 2), 200000000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(1000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 / 100), 200000000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(1000000000000, 1), 200000000);
|
||||
|
||||
// higher is inverse proportional
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(1000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 2), 200000000 / 2);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(1000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 10), 200000000 / 10);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(1000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 1000), 200000000 / 1000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(1000000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 1000000ull), 200000000 / 1000000);
|
||||
}
|
||||
|
||||
TEST_F(fee, dot3xmr)
|
||||
{
|
||||
// CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 and lower are clamped
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(300000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2), 60000000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(300000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 / 2), 60000000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(300000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 / 100), 60000000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(300000000000, 1), 60000000);
|
||||
|
||||
// higher is inverse proportional
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(300000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 2), 60000000 / 2);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(300000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 10), 60000000 / 10);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(300000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 1000), 60000000 / 1000);
|
||||
ASSERT_EQ(Blockchain::get_dynamic_per_kb_fee(300000000000, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 1000000ull), 60000000 / 1000000);
|
||||
}
|
||||
|
||||
static bool is_more_or_less(double x, double y)
|
||||
{
|
||||
return fabs(y - x) < 0.001;
|
||||
}
|
||||
|
||||
static const double MAX_MULTIPLIER = 166.f;
|
||||
|
||||
TEST_F(fee, double_at_full)
|
||||
{
|
||||
static const uint64_t block_rewards[] = {
|
||||
20000000000000ull, // 20 monero
|
||||
13000000000000ull,
|
||||
1000000000000ull,
|
||||
600000000000ull, // .6 monero, minimum reward per block at 2min
|
||||
300000000000ull, // .3 monero, minimum reward per block at 1min
|
||||
};
|
||||
static const uint64_t median_block_sizes[] = {
|
||||
CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2,
|
||||
CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 2,
|
||||
CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 10,
|
||||
CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 1000,
|
||||
CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2 * 1000000ull
|
||||
};
|
||||
|
||||
for (uint64_t block_reward: block_rewards)
|
||||
{
|
||||
for (uint64_t median_block_size: median_block_sizes)
|
||||
{
|
||||
ASSERT_TRUE(is_more_or_less(Blockchain::get_dynamic_per_kb_fee(block_reward, median_block_size) * (median_block_size / 1024.) * MAX_MULTIPLIER / (double)block_reward, 1.992 * 1000 / 1024));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue