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Remove unnecessary m_check_txin_table, fix const correctness

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pull/326/head
Martijn Otto 5 years ago
parent 633f14b976
commit c164f9037e
No known key found for this signature in database
GPG Key ID: D2E0D5D0B1D606F9
2 changed files with 12 additions and 43 deletions
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42
src/cryptonote_core/blockchain.cpp
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@ -715,7 +715,6 @@ block Blockchain::pop_block_from_blockchain()
m_blocks_longhash_table.clear();
m_scan_table.clear();
m_blocks_txs_check.clear();
m_check_txin_table.clear();
CHECK_AND_ASSERT_THROW_MES(update_next_cumulative_weight_limit(), "Error updating next cumulative weight limit");
uint64_t top_block_height;
@ -2575,7 +2574,7 @@ void Blockchain::on_new_tx_from_block(const cryptonote::transaction &tx)
// This function overloads its sister function with
// an extra value (hash of highest block that holds an output used as input)
// as a return-by-reference.
bool Blockchain::check_tx_inputs(transaction& tx, uint64_t& max_used_block_height, crypto::hash& max_used_block_id, tx_verification_context &tvc, bool kept_by_block)
bool Blockchain::check_tx_inputs(transaction& tx, uint64_t& max_used_block_height, crypto::hash& max_used_block_id, tx_verification_context &tvc, bool kept_by_block) const
{
LOG_PRINT_L3("Blockchain::" << __func__);
CRITICAL_REGION_LOCAL(m_blockchain_lock);
@ -2606,7 +2605,7 @@ bool Blockchain::check_tx_inputs(transaction& tx, uint64_t& max_used_block_heigh
return true;
}
//------------------------------------------------------------------
bool Blockchain::check_tx_outputs(const transaction& tx, tx_verification_context &tvc)
bool Blockchain::check_tx_outputs(const transaction& tx, tx_verification_context &tvc) const
{
LOG_PRINT_L3("Blockchain::" << __func__);
CRITICAL_REGION_LOCAL(m_blockchain_lock);
@ -2715,7 +2714,7 @@ bool Blockchain::have_tx_keyimges_as_spent(const transaction &tx) const
}
return false;
}
bool Blockchain::expand_transaction_2(transaction &tx, const crypto::hash &tx_prefix_hash, const std::vector<std::vector<rct::ctkey>> &pubkeys)
bool Blockchain::expand_transaction_2(transaction &tx, const crypto::hash &tx_prefix_hash, const std::vector<std::vector<rct::ctkey>> &pubkeys) const
{
PERF_TIMER(expand_transaction_2);
CHECK_AND_ASSERT_MES(tx.version == 2, false, "Transaction version is not 2");
@ -2791,7 +2790,7 @@ bool Blockchain::expand_transaction_2(transaction &tx, const crypto::hash &tx_pr
// check_tx_input() rather than here, and use this function simply
// to iterate the inputs as necessary (splitting the task
// using threads, etc.)
bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc, uint64_t* pmax_used_block_height)
bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc, uint64_t* pmax_used_block_height) const
{
PERF_TIMER(check_tx_inputs);
LOG_PRINT_L3("Blockchain::" << __func__);
@ -2897,13 +2896,6 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
}
}
}
auto it = m_check_txin_table.find(tx_prefix_hash);
if(it == m_check_txin_table.end())
{
m_check_txin_table.emplace(tx_prefix_hash, std::unordered_map<crypto::key_image, bool>());
it = m_check_txin_table.find(tx_prefix_hash);
assert(it != m_check_txin_table.end());
}
std::vector<std::vector<rct::ctkey>> pubkeys(tx.vin.size());
std::vector < uint64_t > results;
@ -2935,29 +2927,12 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
{
// basically, make sure number of inputs == number of signatures
CHECK_AND_ASSERT_MES(sig_index < tx.signatures.size(), false, "wrong transaction: not signature entry for input with index= " << sig_index);
#if defined(CACHE_VIN_RESULTS)
auto itk = it->second.find(in_to_key.k_image);
if(itk != it->second.end())
{
if(!itk->second)
{
MERROR_VER("Failed ring signature for tx " << get_transaction_hash(tx) << " vin key with k_image: " << in_to_key.k_image << " sig_index: " << sig_index);
return false;
}
// txin has been verified already, skip
sig_index++;
continue;
}
#endif
}
// make sure that output being spent matches up correctly with the
// signature spending it.
if (!check_tx_input(tx.version, in_to_key, tx_prefix_hash, tx.version == 1 ? tx.signatures[sig_index] : std::vector<crypto::signature>(), tx.rct_signatures, pubkeys[sig_index], pmax_used_block_height))
{
it->second[in_to_key.k_image] = false;
MERROR_VER("Failed to check ring signature for tx " << get_transaction_hash(tx) << " vin key with k_image: " << in_to_key.k_image << " sig_index: " << sig_index);
if (pmax_used_block_height) // a default value of NULL is used when called from Blockchain::handle_block_to_main_chain()
{
@ -2980,7 +2955,6 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
check_ring_signature(tx_prefix_hash, in_to_key.k_image, pubkeys[sig_index], tx.signatures[sig_index], results[sig_index]);
if (!results[sig_index])
{
it->second[in_to_key.k_image] = false;
MERROR_VER("Failed to check ring signature for tx " << get_transaction_hash(tx) << " vin key with k_image: " << in_to_key.k_image << " sig_index: " << sig_index);
if (pmax_used_block_height) // a default value of NULL is used when called from Blockchain::handle_block_to_main_chain()
@ -2990,7 +2964,6 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
return false;
}
it->second[in_to_key.k_image] = true;
}
}
@ -3008,7 +2981,6 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
for (size_t i = 0; i < tx.vin.size(); i++)
{
const txin_to_key& in_to_key = boost::get<txin_to_key>(tx.vin[i]);
it->second[in_to_key.k_image] = results[i];
if(!failed && !results[i])
failed = true;
}
@ -3182,7 +3154,7 @@ bool Blockchain::check_tx_inputs(transaction& tx, tx_verification_context &tvc,
}
//------------------------------------------------------------------
void Blockchain::check_ring_signature(const crypto::hash &tx_prefix_hash, const crypto::key_image &key_image, const std::vector<rct::ctkey> &pubkeys, const std::vector<crypto::signature>& sig, uint64_t &result)
void Blockchain::check_ring_signature(const crypto::hash &tx_prefix_hash, const crypto::key_image &key_image, const std::vector<rct::ctkey> &pubkeys, const std::vector<crypto::signature>& sig, uint64_t &result) const
{
std::vector<const crypto::public_key *> p_output_keys;
p_output_keys.reserve(pubkeys.size());
@ -3369,7 +3341,7 @@ bool Blockchain::is_tx_spendtime_unlocked(uint64_t unlock_time) const
// This function locates all outputs associated with a given input (mixins)
// and validates that they exist and are usable. It also checks the ring
// signature for each input.
bool Blockchain::check_tx_input(size_t tx_version, const txin_to_key& txin, const crypto::hash& tx_prefix_hash, const std::vector<crypto::signature>& sig, const rct::rctSig &rct_signatures, std::vector<rct::ctkey> &output_keys, uint64_t* pmax_related_block_height)
bool Blockchain::check_tx_input(size_t tx_version, const txin_to_key& txin, const crypto::hash& tx_prefix_hash, const std::vector<crypto::signature>& sig, const rct::rctSig &rct_signatures, std::vector<rct::ctkey> &output_keys, uint64_t* pmax_related_block_height) const
{
LOG_PRINT_L3("Blockchain::" << __func__);
@ -4208,7 +4180,6 @@ bool Blockchain::cleanup_handle_incoming_blocks(bool force_sync)
m_blocks_longhash_table.clear();
m_scan_table.clear();
m_blocks_txs_check.clear();
m_check_txin_table.clear();
// when we're well clear of the precomputed hashes, free the memory
if (!m_blocks_hash_check.empty() && m_db->height() > m_blocks_hash_check.size() + 4096)
@ -4497,7 +4468,6 @@ bool Blockchain::prepare_handle_incoming_blocks(const std::vector<block_complete
m_fake_pow_calc_time = 0;
m_scan_table.clear();
m_check_txin_table.clear();
TIME_MEASURE_FINISH(prepare);
m_fake_pow_calc_time = prepare / blocks_entry.size();

13
src/cryptonote_core/blockchain.h
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@ -559,7 +559,7 @@ namespace cryptonote
*
* @return false if any input is invalid, otherwise true
*/
bool check_tx_inputs(transaction& tx, uint64_t& pmax_used_block_height, crypto::hash& max_used_block_id, tx_verification_context &tvc, bool kept_by_block = false);
bool check_tx_inputs(transaction& tx, uint64_t& pmax_used_block_height, crypto::hash& max_used_block_id, tx_verification_context &tvc, bool kept_by_block = false) const;
/**
* @brief get fee quantization mask
@ -626,7 +626,7 @@ namespace cryptonote
*
* @return false if any outputs do not conform, otherwise true
*/
bool check_tx_outputs(const transaction& tx, tx_verification_context &tvc);
bool check_tx_outputs(const transaction& tx, tx_verification_context &tvc) const;
/**
* @brief gets the block weight limit based on recent blocks
@ -1040,7 +1040,6 @@ namespace cryptonote
// metadata containers
std::unordered_map<crypto::hash, std::unordered_map<crypto::key_image, std::vector<output_data_t>>> m_scan_table;
std::unordered_map<crypto::hash, crypto::hash> m_blocks_longhash_table;
std::unordered_map<crypto::hash, std::unordered_map<crypto::key_image, bool>> m_check_txin_table;
// SHA-3 hashes for each block and for fast pow checking
std::vector<crypto::hash> m_blocks_hash_of_hashes;
@ -1150,7 +1149,7 @@ namespace cryptonote
*
* @return false if any output is not yet unlocked, or is missing, otherwise true
*/
bool check_tx_input(size_t tx_version,const txin_to_key& txin, const crypto::hash& tx_prefix_hash, const std::vector<crypto::signature>& sig, const rct::rctSig &rct_signatures, std::vector<rct::ctkey> &output_keys, uint64_t* pmax_related_block_height);
bool check_tx_input(size_t tx_version,const txin_to_key& txin, const crypto::hash& tx_prefix_hash, const std::vector<crypto::signature>& sig, const rct::rctSig &rct_signatures, std::vector<rct::ctkey> &output_keys, uint64_t* pmax_related_block_height) const;
/**
* @brief validate a transaction's inputs and their keys
@ -1172,7 +1171,7 @@ namespace cryptonote
*
* @return false if any validation step fails, otherwise true
*/
bool check_tx_inputs(transaction& tx, tx_verification_context &tvc, uint64_t* pmax_used_block_height = NULL);
bool check_tx_inputs(transaction& tx, tx_verification_context &tvc, uint64_t* pmax_used_block_height = NULL) const;
/**
* @brief performs a blockchain reorganization according to the longest chain rule
@ -1452,7 +1451,7 @@ namespace cryptonote
* @param result false if the ring signature is invalid, otherwise true
*/
void check_ring_signature(const crypto::hash &tx_prefix_hash, const crypto::key_image &key_image,
const std::vector<rct::ctkey> &pubkeys, const std::vector<crypto::signature> &sig, uint64_t &result);
const std::vector<rct::ctkey> &pubkeys, const std::vector<crypto::signature> &sig, uint64_t &result) const;
/**
* @brief loads block hashes from compiled-in data set
@ -1472,7 +1471,7 @@ namespace cryptonote
* can be reconstituted by the receiver. This function expands
* that implicit data.
*/
bool expand_transaction_2(transaction &tx, const crypto::hash &tx_prefix_hash, const std::vector<std::vector<rct::ctkey>> &pubkeys);
bool expand_transaction_2(transaction &tx, const crypto::hash &tx_prefix_hash, const std::vector<std::vector<rct::ctkey>> &pubkeys) const;
/**
* @brief invalidates any cached block template

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