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blockchain_blackball: add --historical-stat which prints historical stats of spent ratio

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stoffu 2019-08-09 14:02:05 +09:00
parent c9df9d683a
commit 9f68669503
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GPG Key ID: 41DAB8343A9EC012
1 changed files with 165 additions and 2 deletions
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167
src/blockchain_utilities/blockchain_blackball.cpp
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@ -415,6 +415,115 @@ static bool for_all_transactions(const std::string &filename, uint64_t &start_id
return fret;
}
static bool for_all_transactions(const std::string &filename, const uint64_t &start_idx, uint64_t &n_txes, const std::function<bool(bool, uint64_t, const cryptonote::transaction_prefix&)> &f)
{
MDB_env *env;
MDB_dbi dbi_blocks, dbi_txs;
MDB_txn *txn;
MDB_cursor *cur_blocks, *cur_txs;
int dbr;
bool tx_active = false;
MDB_val k;
MDB_val v;
dbr = mdb_env_create(&env);
if (dbr) throw std::runtime_error("Failed to create LDMB environment: " + std::string(mdb_strerror(dbr)));
dbr = mdb_env_set_maxdbs(env, 3);
if (dbr) throw std::runtime_error("Failed to set max env dbs: " + std::string(mdb_strerror(dbr)));
const std::string actual_filename = filename;
dbr = mdb_env_open(env, actual_filename.c_str(), 0, 0664);
if (dbr) throw std::runtime_error("Failed to open rings database file '"
+ actual_filename + "': " + std::string(mdb_strerror(dbr)));
dbr = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
if (dbr) throw std::runtime_error("Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
epee::misc_utils::auto_scope_leave_caller txn_dtor = epee::misc_utils::create_scope_leave_handler([&](){if (tx_active) mdb_txn_abort(txn);});
tx_active = true;
dbr = mdb_dbi_open(txn, "blocks", MDB_INTEGERKEY, &dbi_blocks);
if (dbr) throw std::runtime_error("Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
dbr = mdb_dbi_open(txn, "txs_pruned", MDB_INTEGERKEY, &dbi_txs);
if (dbr) throw std::runtime_error("Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
dbr = mdb_cursor_open(txn, dbi_blocks, &cur_blocks);
if (dbr) throw std::runtime_error("Failed to create LMDB cursor: " + std::string(mdb_strerror(dbr)));
dbr = mdb_cursor_open(txn, dbi_txs, &cur_txs);
if (dbr) throw std::runtime_error("Failed to create LMDB cursor: " + std::string(mdb_strerror(dbr)));
MDB_stat stat;
dbr = mdb_stat(txn, dbi_blocks, &stat);
if (dbr) throw std::runtime_error("Failed to query txs stat: " + std::string(mdb_strerror(dbr)));
uint64_t n_blocks = stat.ms_entries;
dbr = mdb_stat(txn, dbi_txs, &stat);
if (dbr) throw std::runtime_error("Failed to query txs stat: " + std::string(mdb_strerror(dbr)));
n_txes = stat.ms_entries;
bool fret = true;
MDB_cursor_op op_blocks = MDB_FIRST;
MDB_cursor_op op_txs = MDB_FIRST;
uint64_t tx_idx = 0;
while (1)
{
int ret = mdb_cursor_get(cur_blocks, &k, &v, op_blocks);
op_blocks = MDB_NEXT;
if (ret == MDB_NOTFOUND)
break;
if (ret)
throw std::runtime_error("Failed to enumerate blocks: " + std::string(mdb_strerror(ret)));
if (k.mv_size != sizeof(uint64_t))
throw std::runtime_error("Bad key size");
uint64_t height = *(const uint64_t*)k.mv_data;
blobdata bd;
bd.assign(reinterpret_cast<char*>(v.mv_data), v.mv_size);
block b;
if (!parse_and_validate_block_from_blob(bd, b))
throw std::runtime_error("Failed to parse block from blob retrieved from the db");
ret = mdb_cursor_get(cur_txs, &k, &v, op_txs);
if (ret)
throw std::runtime_error("Failed to fetch transaction " + string_tools::pod_to_hex(get_transaction_hash(b.miner_tx)) + ": " + std::string(mdb_strerror(ret)));
op_txs = MDB_NEXT;
bool last_block = height == n_blocks - 1;
if (start_idx <= tx_idx++ && !f(last_block && b.tx_hashes.empty(), height, b.miner_tx))
{
fret = false;
break;
}
for (size_t i = 0; i < b.tx_hashes.size(); ++i)
{
const crypto::hash& txid = b.tx_hashes[i];
ret = mdb_cursor_get(cur_txs, &k, &v, op_txs);
if (ret)
throw std::runtime_error("Failed to fetch transaction " + string_tools::pod_to_hex(txid) + ": " + std::string(mdb_strerror(ret)));
if (start_idx <= tx_idx++)
{
cryptonote::transaction_prefix tx;
bd.assign(reinterpret_cast<char*>(v.mv_data), v.mv_size);
CHECK_AND_ASSERT_MES(parse_and_validate_tx_prefix_from_blob(bd, tx), false, "Failed to parse transaction from blob");
if (!f(last_block && i == b.tx_hashes.size() - 1, height, tx))
{
fret = false;
break;
}
}
}
if (!fret)
break;
}
mdb_cursor_close(cur_blocks);
mdb_cursor_close(cur_txs);
mdb_txn_commit(txn);
tx_active = false;
mdb_dbi_close(env, dbi_blocks);
mdb_dbi_close(env, dbi_txs);
mdb_env_close(env);
return fret;
}
static uint64_t find_first_diverging_transaction(const std::string &first_filename, const std::string &second_filename)
{
MDB_env *env[2];
@ -1094,6 +1203,7 @@ int main(int argc, char* argv[])
const command_line::arg_descriptor<std::string> arg_extra_spent_list = {"extra-spent-list", "Optional list of known spent outputs",""};
const command_line::arg_descriptor<std::string> arg_export = {"export", "Filename to export the backball list to"};
const command_line::arg_descriptor<bool> arg_force_chain_reaction_pass = {"force-chain-reaction-pass", "Run the chain reaction pass even if no new blockchain data was processed"};
const command_line::arg_descriptor<bool> arg_historical_stat = {"historical-stat", "Report historical stat of spent outputs for every 10000 blocks window"};
command_line::add_arg(desc_cmd_sett, arg_blackball_db_dir);
command_line::add_arg(desc_cmd_sett, arg_log_level);
@ -1105,6 +1215,7 @@ int main(int argc, char* argv[])
command_line::add_arg(desc_cmd_sett, arg_extra_spent_list);
command_line::add_arg(desc_cmd_sett, arg_export);
command_line::add_arg(desc_cmd_sett, arg_force_chain_reaction_pass);
command_line::add_arg(desc_cmd_sett, arg_historical_stat);
command_line::add_arg(desc_cmd_sett, arg_inputs);
command_line::add_arg(desc_cmd_only, command_line::arg_help);
@ -1145,6 +1256,7 @@ int main(int argc, char* argv[])
bool opt_check_subsets = command_line::get_arg(vm, arg_check_subsets);
bool opt_verbose = command_line::get_arg(vm, arg_verbose);
bool opt_force_chain_reaction_pass = command_line::get_arg(vm, arg_force_chain_reaction_pass);
bool opt_historical_stat = command_line::get_arg(vm, arg_historical_stat);
std::string opt_export = command_line::get_arg(vm, arg_export);
std::string extra_spent_list = command_line::get_arg(vm, arg_extra_spent_list);
std::vector<std::pair<uint64_t, uint64_t>> extra_spent_outputs = extra_spent_list.empty() ? std::vector<std::pair<uint64_t, uint64_t>>() : load_outputs(extra_spent_list);
@ -1196,6 +1308,59 @@ int main(int argc, char* argv[])
MDB_cursor *cur0;
open_db(inputs[0], &env0, &txn0, &cur0, &dbi0);
std::vector<output_data> work_spent;
if (opt_historical_stat)
{
if (!start_blackballed_outputs)
{
MINFO("Spent outputs database is empty. Either you haven't run the analysis mode yet, or there is really no output marked as spent.");
goto skip_secondary_passes;
}
const uint64_t STAT_WINDOW = 10000;
uint64_t outs_total = 0;
uint64_t outs_spent = 0;
std::unordered_map<uint64_t, uint64_t> outs_per_amount;
uint64_t start_idx = 0, n_txes;
uint64_t prev_height = 0;
for_all_transactions(inputs[0], start_idx, n_txes, [&](bool last_tx, uint64_t height, const cryptonote::transaction_prefix &tx)->bool
{
if (height != prev_height)
{
if (height % 100 == 0) std::cout << "\r" << height << ": " << (100.0f * outs_spent / outs_total) << "% ( " << outs_spent << " / " << outs_total << " ) \r" << std::flush;
if (height % STAT_WINDOW == 0)
{
uint64_t window_front = (height / STAT_WINDOW - 1) * STAT_WINDOW;
uint64_t window_back = window_front + STAT_WINDOW - 1;
LOG_PRINT_L0(window_front << "-" << window_back << ": " << (100.0f * outs_spent / outs_total) << "% ( " << outs_spent << " / " << outs_total << " )");
outs_total = outs_spent = 0;
}
}
prev_height = height;
for (const auto &out: tx.vout)
{
++outs_total;
CHECK_AND_ASSERT_THROW_MES(out.target.type() == typeid(txout_to_key), "Out target type is not txout_to_key: height=" + std::to_string(height));
uint64_t out_global_index = outs_per_amount[out.amount]++;
if (ringdb.blackballed({out.amount, out_global_index}))
++outs_spent;
}
if (last_tx)
{
uint64_t window_front = (height / STAT_WINDOW) * STAT_WINDOW;
uint64_t window_back = height;
LOG_PRINT_L0(window_front << "-" << window_back << ": " << (100.0f * outs_spent / outs_total) << "% ( " << outs_spent << " / " << outs_total << " )");
}
if (stop_requested)
{
MINFO("Stopping scan...");
return false;
}
return true;
});
goto skip_secondary_passes;
}
if (!extra_spent_outputs.empty())
{
MINFO("Adding " << extra_spent_outputs.size() << " extra spent outputs");
@ -1432,8 +1597,6 @@ int main(int argc, char* argv[])
break;
}
std::vector<output_data> work_spent;
if (stop_requested)
goto skip_secondary_passes;