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blockchain_db: allocate known size vector only once

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moneromooo-monero 2018-12-05 19:21:43 +00:00
parent 6644b9b7b7
commit ce594f5af7
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1 changed files with 5 additions and 5 deletions
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10
src/blockchain_db/blockchain_db.cpp
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@ -170,7 +170,7 @@ void BlockchainDB::add_transaction(const crypto::hash& blk_hash, const transacti
uint64_t tx_id = add_transaction_data(blk_hash, tx, tx_hash, tx_prunable_hash); uint64_t tx_id = add_transaction_data(blk_hash, tx, tx_hash, tx_prunable_hash);
std::vector<uint64_t> amount_output_indices; std::vector<uint64_t> amount_output_indices(tx.vout.size());
// iterate tx.vout using indices instead of C++11 foreach syntax because // iterate tx.vout using indices instead of C++11 foreach syntax because
// we need the index // we need the index
@ -183,13 +183,13 @@ void BlockchainDB::add_transaction(const crypto::hash& blk_hash, const transacti
cryptonote::tx_out vout = tx.vout[i]; cryptonote::tx_out vout = tx.vout[i];
rct::key commitment = rct::zeroCommit(vout.amount); rct::key commitment = rct::zeroCommit(vout.amount);
vout.amount = 0; vout.amount = 0;
amount_output_indices.push_back(add_output(tx_hash, vout, i, tx.unlock_time, amount_output_indices[i] = add_output(tx_hash, vout, i, tx.unlock_time,
&commitment)); &commitment);
} }
else else
{ {
amount_output_indices.push_back(add_output(tx_hash, tx.vout[i], i, tx.unlock_time, amount_output_indices[i] = add_output(tx_hash, tx.vout[i], i, tx.unlock_time,
tx.version > 1 ? &tx.rct_signatures.outPk[i].mask : NULL)); tx.version > 1 ? &tx.rct_signatures.outPk[i].mask : NULL);
} }
} }
add_tx_amount_output_indices(tx_id, amount_output_indices); add_tx_amount_output_indices(tx_id, amount_output_indices);