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speed up get_output_distribution (and precalc common case)

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This commit is contained in:
moneromooo-monero
2018-05-16 22:41:50 +01:00
parent 2f5506daf8
commit 5f8ffca34d
10 changed files with 183 additions and 23 deletions
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19
src/cryptonote_core/blockchain.cpp
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@@ -1950,7 +1950,7 @@ void Blockchain::get_output_key_mask_unlocked(const uint64_t& amount, const uint
unlocked = is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first));
}
//------------------------------------------------------------------
bool Blockchain::get_output_distribution(uint64_t amount, uint64_t from_height, uint64_t &start_height, std::vector<uint64_t> &distribution, uint64_t &base) const
bool Blockchain::get_output_distribution(uint64_t amount, uint64_t from_height, uint64_t to_height, uint64_t &start_height, std::vector<uint64_t> &distribution, uint64_t &base) const
{
// rct outputs don't exist before v3
if (amount == 0)
@@ -1971,22 +1971,7 @@ bool Blockchain::get_output_distribution(uint64_t amount, uint64_t from_height,
if (from_height > start_height)
start_height = from_height;
distribution.clear();
uint64_t db_height = m_db->height();
if (start_height >= db_height)
return false;
distribution.resize(db_height - start_height, 0);
bool r = for_all_outputs(amount, [&](uint64_t height) {
CHECK_AND_ASSERT_MES(height >= real_start_height && height <= db_height, false, "Height not in expected range");
if (height >= start_height)
distribution[height - start_height]++;
else
base++;
return true;
});
if (!r)
return false;
return true;
return m_db->get_output_distribution(amount, start_height, to_height, distribution, base);
}
//------------------------------------------------------------------
// This function takes a list of block hashes from another node