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authorUkoeHB <37489173+UkoeHB@users.noreply.github.com>2020-01-08 05:21:43 -0600
committerkoe <ukoe@protonmail.com>2020-01-09 09:11:09 -0600
commit02224e714d7e3ca0d07416b5882ae0cfc92900f2 (patch)
treee6f1120f8eb59d6e1ebc95f4bc68c1ed39f548ee /src
parentMerge pull request #6231 (diff)
downloadmonero-02224e714d7e3ca0d07416b5882ae0cfc92900f2.tar.xz
Fix check_fee() discrepancy.
M100 = max{300kb, min{100block_median, m_long_term_effective_median_block_weight}} not M100 = max{300kb, m_long_term_effective_median_block_weight} Fix base reward in get_dynamic_base_fee_estimate(). get_dynamic_base_fee_estimate() should match check_fee() Fee is calculated based on block reward, and the reward penalty takes into account 0.5*max_block_weight (both before and after HF_VERSION_EFFECTIVE_SHORT_TERM_MEDIAN_IN_PENALTY). Moved median calculation according to best practice of 'keep definitions close to where they are used'.
Diffstat (limited to 'src')
-rw-r--r--src/cryptonote_core/blockchain.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index 7357e44d0..f162f4608 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -3409,7 +3409,7 @@ bool Blockchain::check_fee(size_t tx_weight, uint64_t fee) const
if (version >= HF_VERSION_PER_BYTE_FEE)
{
const bool use_long_term_median_in_fee = version >= HF_VERSION_LONG_TERM_BLOCK_WEIGHT;
- uint64_t fee_per_byte = get_dynamic_base_fee(base_reward, use_long_term_median_in_fee ? m_long_term_effective_median_block_weight : median, version);
+ uint64_t fee_per_byte = get_dynamic_base_fee(base_reward, use_long_term_median_in_fee ? std::min<uint64_t>(median, m_long_term_effective_median_block_weight) : median, version);
MDEBUG("Using " << print_money(fee_per_byte) << "/byte fee");
needed_fee = tx_weight * fee_per_byte;
// quantize fee up to 8 decimals
@@ -3467,7 +3467,7 @@ uint64_t Blockchain::get_dynamic_base_fee_estimate(uint64_t grace_blocks) const
uint64_t already_generated_coins = db_height ? m_db->get_block_already_generated_coins(db_height - 1) : 0;
uint64_t base_reward;
- if (!get_block_reward(median, 1, already_generated_coins, base_reward, version))
+ if (!get_block_reward(m_current_block_cumul_weight_limit / 2, 1, already_generated_coins, base_reward, version))
{
MERROR("Failed to determine block reward, using placeholder " << print_money(BLOCK_REWARD_OVERESTIMATE) << " as a high bound");
base_reward = BLOCK_REWARD_OVERESTIMATE;