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@ -2760,6 +2760,36 @@ bool Blockchain::check_fee(size_t blob_size, uint64_t fee) const
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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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