int import_from_file(FakeCore& simple_core, const std::string& import_file_path, uint64_t block_stop=0)
{
#if !defined(BLOCKCHAIN_DB)
static_assert(std::is_same<fake_core_memory, FakeCore>::value || std::is_same<fake_core_lmdb, FakeCore>::value,
"FakeCore constraint error");
#endif
#if !defined(BLOCKCHAIN_DB) || (BLOCKCHAIN_DB == DB_LMDB)
if (std::is_same<fake_core_lmdb, FakeCore>::value)
{
// Reset stats, in case we're using newly created db, accumulating stats
// from addition of genesis block.
// This aligns internal db counts with importer counts.
simple_core.m_storage.get_db().reset_stats();
}
#endif
boost::filesystem::path fs_import_file_path(import_file_path);
boost::system::error_code ec;
if (!boost::filesystem::exists(fs_import_file_path, ec))
{
LOG_PRINT_L0("bootstrap file not found: " << fs_import_file_path);
return false;
}
BootstrapFile bootstrap;
// BootstrapFile bootstrap(import_file_path);
uint64_t total_source_blocks = bootstrap.count_blocks(import_file_path);
LOG_PRINT_L0("bootstrap file last block number: " << total_source_blocks-1 << " (zero-based height) total blocks: " << total_source_blocks);
std::cout << ENDL;
std::cout << "Preparing to read blocks..." << ENDL;
std::cout << ENDL;
std::ifstream import_file;
import_file.open(import_file_path, std::ios_base::binary | std::ifstream::in);
uint64_t h = 0;
uint64_t num_imported = 0;
if (import_file.fail())
{
LOG_PRINT_L0("import_file.open() fail");
return false;
}
// 4 byte magic + (currently) 1024 byte header structures
bootstrap.seek_to_first_chunk(import_file);
std::string str1;
char buffer1[1024];
char buffer_block[BUFFER_SIZE];
block b;
transaction tx;
int quit = 0;
uint64_t bytes_read = 0;
uint64_t start_height = 1;
if (opt_resume)
start_height = simple_core.m_storage.get_current_blockchain_height();
// Note that a new blockchain will start with block number 0 (total blocks: 1)
// due to genesis block being added at initialization.
if (! block_stop)
{
block_stop = total_source_blocks - 1;
}
// These are what we'll try to use, and they don't have to be a determination
// from source and destination blockchains, but those are the defaults.
LOG_PRINT_L0("start block: " << start_height << " stop block: " <<
block_stop);
bool use_batch = false;
if (opt_batch)
{
if (simple_core.support_batch)
use_batch = true;
else
LOG_PRINT_L0("WARNING: batch transactions enabled but unsupported or unnecessary for this database engine - ignoring");
}
if (use_batch)
simple_core.batch_start(db_batch_size);
LOG_PRINT_L0("Reading blockchain from bootstrap file...");
std::cout << ENDL;
// Within the loop, we skip to start_height before we start adding.
// TODO: Not a bottleneck, but we can use what's done in count_blocks() and
// only do the chunk size reads, skipping the chunk content reads until we're
// at start_height.
while (! quit)
{
uint32_t chunk_size;
import_file.read(buffer1, sizeof(chunk_size));
// TODO: bootstrap.read_chunk();
if (! import_file) {
std::cout << refresh_string;
LOG_PRINT_L0("End of file reached");
quit = 1;
break;
}
bytes_read += sizeof(chunk_size);
str1.assign(buffer1, sizeof(chunk_size));
if (! ::serialization::parse_binary(str1, chunk_size))
{
throw std::runtime_error("Error in deserialization of chunk size");
}
LOG_PRINT_L3("chunk_size: " << chunk_size);
if (chunk_size > BUFFER_SIZE)
{
LOG_PRINT_L0("WARNING: chunk_size " << chunk_size << " > BUFFER_SIZE " << BUFFER_SIZE);
throw std::runtime_error("Aborting: chunk size exceeds buffer size");
}
if (chunk_size > 100000)
{
LOG_PRINT_L0("NOTE: chunk_size " << chunk_size << " > 100000");
}
else if (chunk_size == 0) {
LOG_PRINT_L0("ERROR: chunk_size == 0");
return 2;
}
import_file.read(buffer_block, chunk_size);
if (! import_file) {
LOG_PRINT_L0("ERROR: unexpected end of file: bytes read before error: "
<< import_file.gcount() << " of chunk_size " << chunk_size);
return 2;
}
bytes_read += chunk_size;
LOG_PRINT_L3("Total bytes read: " << bytes_read);
if (h + NUM_BLOCKS_PER_CHUNK < start_height + 1)
{
h += NUM_BLOCKS_PER_CHUNK;
continue;
}
if (h > block_stop)
{
std::cout << refresh_string << "block " << h-1
<< " / " << block_stop
<< std::flush;
std::cout << ENDL << ENDL;
LOG_PRINT_L0("Specified block number reached - stopping. block: " << h-1 << " total blocks: " << h);
quit = 1;
break;
}
try
{
str1.assign(buffer_block, chunk_size);
bootstrap::block_package bp;
if (! ::serialization::parse_binary(str1, bp))
throw std::runtime_error("Error in deserialization of chunk");
int display_interval = 1000;
int progress_interval = 10;
// NOTE: use of NUM_BLOCKS_PER_CHUNK is a placeholder in case multi-block chunks are later supported.
for (int chunk_ind = 0; chunk_ind < NUM_BLOCKS_PER_CHUNK; ++chunk_ind)
{
++h;
if ((h-1) % display_interval == 0)
{
std::cout << refresh_string;
LOG_PRINT_L0("loading block number " << h-1);
}
else
{
LOG_PRINT_L3("loading block number " << h-1);
}
b = bp.block;
LOG_PRINT_L2("block prev_id: " << b.prev_id << ENDL);
if ((h-1) % progress_interval == 0)
{
std::cout << refresh_string << "block " << h-1
<< " / " << block_stop
<< std::flush;
}
std::vector<transaction> txs;
std::vector<transaction> archived_txs;
archived_txs = bp.txs;
// std::cout << refresh_string;
// LOG_PRINT_L1("txs: " << archived_txs.size());
// if archived_txs is invalid
// {
// std::cout << refresh_string;
// LOG_PRINT_RED_L0("exception while de-archiving txs, height=" << h);
// quit = 1;
// break;
// }
// tx number 1: coinbase tx
// tx number 2 onwards: archived_txs
unsigned int tx_num = 1;
for (const transaction& tx : archived_txs)
{
++tx_num;
// if tx is invalid
// {
// LOG_PRINT_RED_L0("exception while indexing tx from txs, height=" << h <<", tx_num=" << tx_num);
// quit = 1;
// break;
// }
// std::cout << refresh_string;
// LOG_PRINT_L1("tx hash: " << get_transaction_hash(tx));
// crypto::hash hsh = null_hash;
// size_t blob_size = 0;
// NOTE: all tx hashes except for coinbase tx are available in the block data
// get_transaction_hash(tx, hsh, blob_size);
// LOG_PRINT_L0("tx " << tx_num << " " << hsh << " : " << ENDL);
// LOG_PRINT_L0(obj_to_json_str(tx) << ENDL);
// add blocks with verification.
// for Blockchain and blockchain_storage add_new_block().
if (opt_verify)
{
// crypto::hash hsh = null_hash;
// size_t blob_size = 0;
// get_transaction_hash(tx, hsh, blob_size);
// we'd need to get the starting heights from the daemon
// to be correct once voting kicks in
uint64_t v2height = opt_testnet ? 624634 : 1009827;
uint8_t version = h < v2height ? 1 : 2;
tx_verification_context tvc = AUTO_VAL_INIT(tvc);
bool r = true;
r = simple_core.m_pool.add_tx(tx, tvc, true, true, version);
if (!r)
{
LOG_PRINT_RED_L0("failed to add transaction to transaction pool, height=" << h <<", tx_num=" << tx_num);
quit = 1;
break;
}
}
else
{
// for add_block() method, without (much) processing.
// don't add coinbase transaction to txs.
//
// because add_block() calls
// add_transaction(blk_hash, blk.miner_tx) first, and
// then a for loop for the transactions in txs.
txs.push_back(tx);
}
}
if (opt_verify)
{
block_verification_context bvc = boost::value_initialized<block_verification_context>();
simple_core.m_storage.add_new_block(b, bvc);
if (bvc.m_verifivation_failed)
{
LOG_PRINT_L0("Failed to add block to blockchain, verification failed, height = " << h);
LOG_PRINT_L0("skipping rest of file");
// ok to commit previously batched data because it failed only in
// verification of potential new block with nothing added to batch
// yet
quit = 1;
break;
}
if (! bvc.m_added_to_main_chain)
{
LOG_PRINT_L0("Failed to add block to blockchain, height = " << h);
LOG_PRINT_L0("skipping rest of file");
// make sure we don't commit partial block data
quit = 2;
break;
}
}
else
{
size_t block_size;
difficulty_type cumulative_difficulty;
uint64_t coins_generated;
block_size = bp.block_size;
cumulative_difficulty = bp.cumulative_difficulty;
coins_generated = bp.coins_generated;
// std::cout << refresh_string;
// LOG_PRINT_L2("block_size: " << block_size);
// LOG_PRINT_L2("cumulative_difficulty: " << cumulative_difficulty);
// LOG_PRINT_L2("coins_generated: " << coins_generated);
try
{
simple_core.add_block(b, block_size, cumulative_difficulty, coins_generated, txs);
}
catch (const std::exception& e)
{
std::cout << refresh_string;
LOG_PRINT_RED_L0("Error adding block to blockchain: " << e.what());
quit = 2; // make sure we don't commit partial block data
break;
}
}
++num_imported;
if (use_batch)
{
if ((h-1) % db_batch_size == 0)
{
std::cout << refresh_string;
// zero-based height
std::cout << ENDL << "[- batch commit at height " << h-1 << " -]" << ENDL;
simple_core.batch_stop();
simple_core.batch_start(db_batch_size);
std::cout << ENDL;
#if !defined(BLOCKCHAIN_DB) || (BLOCKCHAIN_DB == DB_LMDB)
simple_core.m_storage.get_db().show_stats();
#endif
}
}
}
}
catch (const std::exception& e)
{
std::cout << refresh_string;
LOG_PRINT_RED_L0("exception while reading from file, height=" << h);
return 2;
}
} // while
import_file.close();
if (use_batch)
{
if (quit > 1)
{
// There was an error, so don't commit pending data.
// Destructor will abort write txn.
}
else
{
simple_core.batch_stop();
}
#if !defined(BLOCKCHAIN_DB) || (BLOCKCHAIN_DB == DB_LMDB)
simple_core.m_storage.get_db().show_stats();
#endif
LOG_PRINT_L0("Number of blocks imported: " << num_imported);
if (h > 0)
// TODO: if there was an error, the last added block is probably at zero-based height h-2
LOG_PRINT_L0("Finished at block: " << h-1 << " total blocks: " << h);
}
std::cout << ENDL;
return 0;
}
int import_from_file(cryptonote::core& core, const std::string& import_file_path, uint64_t block_stop=0)
{
// Reset stats, in case we're using newly created db, accumulating stats
// from addition of genesis block.
// This aligns internal db counts with importer counts.
core.get_blockchain_storage().get_db().reset_stats();
boost::filesystem::path fs_import_file_path(import_file_path);
boost::system::error_code ec;
if (!boost::filesystem::exists(fs_import_file_path, ec))
{
MFATAL("bootstrap file not found: " << fs_import_file_path);
return false;
}
uint64_t start_height = 1, seek_height;
if (opt_resume)
start_height = core.get_blockchain_storage().get_current_blockchain_height();
seek_height = start_height;
BootstrapFile bootstrap;
std::streampos pos;
// BootstrapFile bootstrap(import_file_path);
uint64_t total_source_blocks = bootstrap.count_blocks(import_file_path, pos, seek_height);
MINFO("bootstrap file last block number: " << total_source_blocks-1 << " (zero-based height) total blocks: " << total_source_blocks);
if (total_source_blocks-1 <= start_height)
{
return false;
}
std::cout << ENDL;
std::cout << "Preparing to read blocks..." << ENDL;
std::cout << ENDL;
std::ifstream import_file;
import_file.open(import_file_path, std::ios_base::binary | std::ifstream::in);
uint64_t h = 0;
uint64_t num_imported = 0;
if (import_file.fail())
{
MFATAL("import_file.open() fail");
return false;
}
// 4 byte magic + (currently) 1024 byte header structures
uint8_t major_version, minor_version;
bootstrap.seek_to_first_chunk(import_file, major_version, minor_version);
std::string str1;
char buffer1[1024];
char buffer_block[BUFFER_SIZE];
block b;
transaction tx;
int quit = 0;
uint64_t bytes_read;
// Note that a new blockchain will start with block number 0 (total blocks: 1)
// due to genesis block being added at initialization.
if (! block_stop)
{
block_stop = total_source_blocks - 1;
}
// These are what we'll try to use, and they don't have to be a determination
// from source and destination blockchains, but those are the defaults.
MINFO("start block: " << start_height << " stop block: " <<
block_stop);
bool use_batch = opt_batch && !opt_verify;
MINFO("Reading blockchain from bootstrap file...");
std::cout << ENDL;
std::vector<block_complete_entry> blocks;
// Skip to start_height before we start adding.
{
bool q2 = false;
import_file.seekg(pos);
bytes_read = bootstrap.count_bytes(import_file, start_height-seek_height, h, q2);
if (q2)
{
quit = 2;
goto quitting;
}
h = start_height;
}
if (use_batch)
{
uint64_t bytes, h2;
bool q2;
pos = import_file.tellg();
bytes = bootstrap.count_bytes(import_file, db_batch_size, h2, q2);
if (import_file.eof())
import_file.clear();
import_file.seekg(pos);
core.get_blockchain_storage().get_db().batch_start(db_batch_size, bytes);
}
while (! quit)
{
uint32_t chunk_size;
import_file.read(buffer1, sizeof(chunk_size));
// TODO: bootstrap.read_chunk();
if (! import_file) {
std::cout << refresh_string;
MINFO("End of file reached");
quit = 1;
break;
}
bytes_read += sizeof(chunk_size);
str1.assign(buffer1, sizeof(chunk_size));
if (! ::serialization::parse_binary(str1, chunk_size))
{
throw std::runtime_error("Error in deserialization of chunk size");
}
MDEBUG("chunk_size: " << chunk_size);
if (chunk_size > BUFFER_SIZE)
{
MWARNING("WARNING: chunk_size " << chunk_size << " > BUFFER_SIZE " << BUFFER_SIZE);
throw std::runtime_error("Aborting: chunk size exceeds buffer size");
}
if (chunk_size > CHUNK_SIZE_WARNING_THRESHOLD)
{
MINFO("NOTE: chunk_size " << chunk_size << " > " << CHUNK_SIZE_WARNING_THRESHOLD);
}
else if (chunk_size == 0) {
MFATAL("ERROR: chunk_size == 0");
return 2;
}
import_file.read(buffer_block, chunk_size);
if (! import_file) {
if (import_file.eof())
{
std::cout << refresh_string;
MINFO("End of file reached - file was truncated");
quit = 1;
break;
}
else
{
MFATAL("ERROR: unexpected end of file: bytes read before error: "
<< import_file.gcount() << " of chunk_size " << chunk_size);
return 2;
}
}
bytes_read += chunk_size;
MDEBUG("Total bytes read: " << bytes_read);
if (h > block_stop)
{
std::cout << refresh_string << "block " << h-1
<< " / " << block_stop
<< "\r" << std::flush;
std::cout << ENDL << ENDL;
MINFO("Specified block number reached - stopping. block: " << h-1 << " total blocks: " << h);
quit = 1;
break;
}
try
{
str1.assign(buffer_block, chunk_size);
bootstrap::block_package bp;
bool res;
if (major_version == 0)
{
bootstrap::block_package_1 bp1;
res = ::serialization::parse_binary(str1, bp1);
if (res)
{
bp.block = std::move(bp1.block);
bp.txs = std::move(bp1.txs);
bp.block_weight = bp1.block_weight;
bp.cumulative_difficulty = bp1.cumulative_difficulty;
bp.coins_generated = bp1.coins_generated;
}
}
else
res = ::serialization::parse_binary(str1, bp);
if (!res)
throw std::runtime_error("Error in deserialization of chunk");
int display_interval = 1000;
int progress_interval = 10;
// NOTE: use of NUM_BLOCKS_PER_CHUNK is a placeholder in case multi-block chunks are later supported.
for (int chunk_ind = 0; chunk_ind < NUM_BLOCKS_PER_CHUNK; ++chunk_ind)
{
++h;
if ((h-1) % display_interval == 0)
{
std::cout << refresh_string;
MDEBUG("loading block number " << h-1);
}
else
{
MDEBUG("loading block number " << h-1);
}
b = bp.block;
MDEBUG("block prev_id: " << b.prev_id << ENDL);
if ((h-1) % progress_interval == 0)
{
std::cout << refresh_string << "block " << h-1
<< " / " << block_stop
<< "\r" << std::flush;
}
if (opt_verify)
{
cryptonote::blobdata block;
cryptonote::block_to_blob(bp.block, block);
std::vector<cryptonote::blobdata> txs;
for (const auto &tx: bp.txs)
{
txs.push_back(cryptonote::blobdata());
cryptonote::tx_to_blob(tx, txs.back());
}
blocks.push_back({block, txs});
int ret = check_flush(core, blocks, false);
if (ret)
{
quit = 2; // make sure we don't commit partial block data
break;
}
}
else
{
std::vector<std::pair<transaction, blobdata>> txs;
std::vector<transaction> archived_txs;
archived_txs = bp.txs;
// tx number 1: coinbase tx
// tx number 2 onwards: archived_txs
for (const transaction &tx : archived_txs)
{
// add blocks with verification.
// for Blockchain and blockchain_storage add_new_block().
// for add_block() method, without (much) processing.
// don't add coinbase transaction to txs.
//
// because add_block() calls
// add_transaction(blk_hash, blk.miner_tx) first, and
// then a for loop for the transactions in txs.
txs.push_back(std::make_pair(tx, tx_to_blob(tx)));
}
size_t block_weight;
difficulty_type cumulative_difficulty;
uint64_t coins_generated;
block_weight = bp.block_weight;
cumulative_difficulty = bp.cumulative_difficulty;
coins_generated = bp.coins_generated;
try
{
uint64_t long_term_block_weight = core.get_blockchain_storage().get_next_long_term_block_weight(block_weight);
core.get_blockchain_storage().get_db().add_block(std::make_pair(b, block_to_blob(b)), block_weight, long_term_block_weight, cumulative_difficulty, coins_generated, txs);
}
catch (const std::exception& e)
{
std::cout << refresh_string;
MFATAL("Error adding block to blockchain: " << e.what());
quit = 2; // make sure we don't commit partial block data
break;
}
if (use_batch)
{
if ((h-1) % db_batch_size == 0)
{
uint64_t bytes, h2;
bool q2;
std::cout << refresh_string;
// zero-based height
std::cout << ENDL << "[- batch commit at height " << h-1 << " -]" << ENDL;
core.get_blockchain_storage().get_db().batch_stop();
pos = import_file.tellg();
bytes = bootstrap.count_bytes(import_file, db_batch_size, h2, q2);
import_file.seekg(pos);
core.get_blockchain_storage().get_db().batch_start(db_batch_size, bytes);
std::cout << ENDL;
core.get_blockchain_storage().get_db().show_stats();
}
}
}
++num_imported;
}
}
catch (const std::exception& e)
{
std::cout << refresh_string;
MFATAL("exception while reading from file, height=" << h << ": " << e.what());
return 2;
}
} // while
quitting:
import_file.close();
if (opt_verify)
{
int ret = check_flush(core, blocks, true);
if (ret)
return ret;
}
if (use_batch)
{
if (quit > 1)
{
// There was an error, so don't commit pending data.
// Destructor will abort write txn.
}
else
{
core.get_blockchain_storage().get_db().batch_stop();
}
}
core.get_blockchain_storage().get_db().show_stats();
MINFO("Number of blocks imported: " << num_imported);
if (h > 0)
// TODO: if there was an error, the last added block is probably at zero-based height h-2
MINFO("Finished at block: " << h-1 << " total blocks: " << h);
std::cout << ENDL;
return 0;
}