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blockchain_db: speedup tx output gathering

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We know all the data we'll want for getblocks.bin is contiguous
This commit is contained in:
moneromooo-monero
2018-12-16 13:28:49 +00:00
parent 6bc0c7e685
commit 008647d7eb
9 changed files with 75 additions and 48 deletions
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29
src/cryptonote_core/blockchain.cpp
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@@ -2297,6 +2297,22 @@ bool Blockchain::check_for_double_spend(const transaction& tx, key_images_contai
return true;
}
//------------------------------------------------------------------
bool Blockchain::get_tx_outputs_gindexs(const crypto::hash& tx_id, size_t n_txes, std::vector<std::vector<uint64_t>>& indexs) const
{
LOG_PRINT_L3("Blockchain::" << __func__);
CRITICAL_REGION_LOCAL(m_blockchain_lock);
uint64_t tx_index;
if (!m_db->tx_exists(tx_id, tx_index))
{
MERROR_VER("get_tx_outputs_gindexs failed to find transaction with id = " << tx_id);
return false;
}
indexs = m_db->get_tx_amount_output_indices(tx_index, n_txes);
CHECK_AND_ASSERT_MES(n_txes == indexs.size(), false, "Wrong indexs size");
return true;
}
//------------------------------------------------------------------
bool Blockchain::get_tx_outputs_gindexs(const crypto::hash& tx_id, std::vector<uint64_t>& indexs) const
{
LOG_PRINT_L3("Blockchain::" << __func__);
@@ -2307,16 +2323,9 @@ bool Blockchain::get_tx_outputs_gindexs(const crypto::hash& tx_id, std::vector<u
MERROR_VER("get_tx_outputs_gindexs failed to find transaction with id = " << tx_id);
return false;
}
// get amount output indexes, currently referred to in parts as "output global indices", but they are actually specific to amounts
indexs = m_db->get_tx_amount_output_indices(tx_index);
if (indexs.empty())
{
// empty indexs is only valid if the vout is empty, which is legal but rare
cryptonote::transaction tx = m_db->get_tx(tx_id);
CHECK_AND_ASSERT_MES(tx.vout.empty(), false, "internal error: global indexes for transaction " << tx_id << " is empty, and tx vout is not");
}
std::vector<std::vector<uint64_t>> indices = m_db->get_tx_amount_output_indices(tx_index, 1);
CHECK_AND_ASSERT_MES(indices.size() == 1, false, "Wrong indices size");
indexs = indices.front();
return true;
}
//------------------------------------------------------------------