def block_to_bx_block(self, block_msg: BlockOntMessage, tx_service: ExtensionTransactionService) -> \
Tuple[memoryview, BlockInfo]:
compress_start_datetime = datetime.utcnow()
compress_start_timestamp = time.time()
self._default_block_size = max(self._default_block_size,
len(block_msg.buf))
tsk = self.compression_tasks.borrow_task()
tsk.init(tpe.InputBytes(block_msg.buf), tx_service.proxy)
try:
task_pool_proxy.run_task(tsk)
except tpe.AggregatedException as e:
self.compression_tasks.return_task(tsk)
raise message_conversion_error.btc_block_compression_error(
block_msg.block_hash(), e)
bx_block = tsk.bx_block()
block = memoryview(bx_block)
compressed_size = len(block)
original_size = len(block_msg.rawbytes())
block_hash = OntObjectHash(
binary=convert.hex_to_bytes(tsk.block_hash().hex_string()))
block_info = BlockInfo(
block_hash, tsk.short_ids(), compress_start_datetime,
datetime.utcnow(), (time.time() - compress_start_timestamp) * 1000,
tsk.txn_count(),
tsk.compressed_block_hash().hex_string(),
tsk.prev_block_hash().hex_string(), original_size, compressed_size,
100 - float(compressed_size) / original_size * 100)
self.compression_tasks.return_task(tsk)
return block, block_info
def msg_block(self, msg: BlockOntMessage) -> None:
block_stats.add_block_event_by_block_hash(
msg.block_hash(),
BlockStatEventType.REMOTE_BLOCK_RECEIVED_BY_GATEWAY,
network_num=self.connection.network_num,
more_info="Protocol: {}, Network: {}".format(
self.connection.node.opts.blockchain_protocol,
self.connection.node.opts.blockchain_network))
return self.msg_proxy_response(msg)
def test_ont_block_to_bloxroute_block_and_back_sids_found(self):
prev_block_hash = bytearray(crypto.bitcoin_hash(b"123"))
prev_block = OntObjectHash(prev_block_hash, length=SHA256_HASH_LEN)
merkle_root_hash = bytearray(crypto.bitcoin_hash(b"234"))
merkle_root = OntObjectHash(merkle_root_hash, length=SHA256_HASH_LEN)
txns_root_hash = bytearray(crypto.bitcoin_hash(b"345"))
txns_root = OntObjectHash(txns_root_hash, length=SHA256_HASH_LEN)
block_root_hash = bytearray(crypto.bitcoin_hash(b"456"))
block_root = OntObjectHash(block_root_hash, length=SHA256_HASH_LEN)
consensus_payload = bytes(b'111')
next_bookkeeper = bytes(b'222')
bookkeepers = [bytes(33)] * 5
sig_data = [bytes(2)] * 3
txns = []
timestamp = 1
height = 2
consensus_data = 3
ont_block = BlockOntMessage(self.magic, self.version, prev_block,
txns_root, block_root, timestamp, height,
consensus_data, consensus_payload,
next_bookkeeper, bookkeepers, sig_data,
txns, merkle_root)
block_hash = ont_block.block_hash()
bloxroute_block, block_info = self.ont_message_converter.block_to_bx_block(
ont_block, self.tx_service, True, 0)
self.assertEqual(0, block_info.txn_count)
self.assertEqual(self.short_ids, list(block_info.short_ids))
self.assertEqual(ont_block.block_hash(), block_info.block_hash)
parsed_ont_block, block_info, _, _ = self.ont_message_converter.bx_block_to_block(
bloxroute_block, self.tx_service)
self.assertIsNotNone(block_info)
self.assertEqual(ont_block.rawbytes().tobytes(),
parsed_ont_block.rawbytes().tobytes())
self.assertEqual(self.magic, parsed_ont_block.magic())
self.assertEqual(
prev_block_hash,
parsed_ont_block.prev_block_hash().get_little_endian())
self.assertEqual(ont_block.checksum(), parsed_ont_block.checksum())
self.assertEqual(block_hash, parsed_ont_block.block_hash())
self.assertEqual(block_hash.binary, block_info.block_hash.binary)
self.assertEqual(timestamp, parsed_ont_block.timestamp())
def block_to_bx_block(self, block_msg: BlockOntMessage, tx_service: TransactionService) \
-> Tuple[memoryview, BlockInfo]:
start_datetime = datetime.utcnow()
start_time = time.time()
block_info = BlockInfo(
block_msg.block_hash(),
[],
start_datetime,
datetime.utcnow(),
(time.time() - start_time) * 1000,
block_msg.txn_count(),
str(block_msg.block_hash()),
convert.bytes_to_hex(block_msg.prev_block_hash().binary),
len(block_msg.rawbytes()),
len(block_msg.rawbytes()),
0
)
return block_msg.rawbytes(), block_info
def bx_block_to_block(self, bx_block_msg: memoryview, tx_service: TransactionService) -> BlockDecompressionResult:
start_datetime = datetime.utcnow()
start_time = time.time()
block_msg = BlockOntMessage(buf=bytearray(bx_block_msg))
block_info = BlockInfo(
block_msg.block_hash(),
[],
start_datetime,
datetime.utcnow(),
(time.time() - start_time) * 1000,
block_msg.txn_count(),
str(block_msg.block_hash()),
convert.bytes_to_hex(block_msg.prev_block_hash().binary),
len(block_msg.rawbytes()),
len(block_msg.rawbytes()),
0
)
return BlockDecompressionResult(block_msg, block_info, [], [])
def clean_block_transactions(
self, block_msg: BlockOntMessage,
transaction_service: TransactionService) -> None:
block_short_ids = []
block_unknown_tx_hashes = []
start_time = time.time()
short_ids_count = 0
unknown_tx_hashes_count = 0
transactions_processed = 0
tx_hash_to_contents_len_before_cleanup = transaction_service.get_tx_hash_to_contents_len(
)
short_id_count_before_cleanup = transaction_service.get_short_id_count(
)
for tx in block_msg.txns():
tx_hash = OntObjectHash(buf=crypto.double_sha256(tx),
length=ont_constants.ONT_HASH_LEN)
short_ids = transaction_service.remove_transaction_by_tx_hash(
tx_hash, force=True)
if short_ids is None:
unknown_tx_hashes_count += 1
block_unknown_tx_hashes.append(tx_hash)
else:
short_ids_count += len(short_ids)
block_short_ids.extend(short_ids)
transactions_processed += 1
block_hash = block_msg.block_hash()
transaction_service.on_block_cleaned_up(block_hash)
end_time = time.time()
duration = end_time - start_time
tx_hash_to_contents_len_after_cleanup = transaction_service.get_tx_hash_to_contents_len(
)
short_id_count_after_cleanup = transaction_service.get_short_id_count()
logger.debug(
"Finished cleaning up block {}. Processed {} hashes, {} of which were unknown, and cleaned up {} "
"short ids. Took {:.3f}s.", block_hash, transactions_processed,
unknown_tx_hashes_count, short_ids_count, duration)
transaction_service.log_block_transaction_cleanup_stats(
block_hash, block_msg.txn_count(),
tx_hash_to_contents_len_before_cleanup,
tx_hash_to_contents_len_after_cleanup,
short_id_count_before_cleanup, short_id_count_after_cleanup)
self._block_hash_marked_for_cleanup.discard(block_hash)
self.node.post_block_cleanup_tasks(
block_hash=block_hash,
short_ids=block_short_ids,
unknown_tx_hashes=block_unknown_tx_hashes)
def parse_bx_block_header(bx_block: memoryview, block_pieces: Deque[Union[bytearray, memoryview]]) -> \
BlockHeaderInfo:
block_offsets = compact_block_short_ids_serializer.get_bx_block_offsets(
bx_block)
short_ids, short_ids_len = compact_block_short_ids_serializer.deserialize_short_ids_from_buffer(
bx_block, block_offsets.short_id_offset)
reconstructed_block_message = BlockOntMessage(
buf=bx_block[block_offsets.block_begin_offset +
ont_constants.ONT_HASH_LEN + 1:])
block_hash = reconstructed_block_message.block_hash()
txn_count = reconstructed_block_message.txn_count()
offset = reconstructed_block_message.txn_offset(
) + block_offsets.block_begin_offset + ont_constants.ONT_HASH_LEN + 1
# Add header piece
block_pieces.append(bx_block[block_offsets.block_begin_offset +
ont_constants.ONT_HASH_LEN + 1:offset])
return BlockHeaderInfo(block_offsets, short_ids, short_ids_len, block_hash,
offset, txn_count)
def msg_block(self, msg: BlockOntMessage) -> None:
block_hash = msg.block_hash()
if not self.node.should_process_block_hash(block_hash):
return
if self.node.block_cleanup_service.is_marked_for_cleanup(block_hash):
self.connection.log_trace("Marked block for cleanup: {}",
block_hash)
self.node.block_cleanup_service.clean_block_transactions(
transaction_service=self.node.get_tx_service(), block_msg=msg)
else:
self.process_msg_block(msg)
# After receiving block message sending INV message for the same block to Ontology node
# This is needed to update Synced Headers value of the gateway peer on the Ontology node
# If Synced Headers is not up-to-date than Ontology node does not push compact blocks to the gateway
inv_msg = InvOntMessage(magic=self.node.opts.blockchain_net_magic,
inv_type=InventoryOntType.MSG_BLOCK,
blocks=[block_hash])
self.connection.enqueue_msg(inv_msg)
self.node.update_current_block_height(msg.height(), block_hash)
def clean_block_transactions(
self, block_msg: BlockOntMessage,
transaction_service: TransactionService) -> None:
start_datetime = datetime.utcnow()
start_time = time.time()
tx_hash_to_contents_len_before_cleanup = transaction_service.get_tx_hash_to_contents_len(
)
cleanup_task = self.block_cleanup_tasks.borrow_task()
tx_service = typing.cast(ExtensionTransactionService,
transaction_service)
cleanup_task.init(tpe.InputBytes(block_msg.buf), tx_service.proxy)
init_time = time.time()
task_pool_proxy.run_task(cleanup_task)
task_run_time = time.time()
unknown_tx_hashes_count = len(cleanup_task.unknown_tx_hashes())
tx_property_fetch_time = time.time()
short_ids = cleanup_task.short_ids()
short_ids_fetch_time = time.time()
short_ids_count = len(short_ids)
tx_service.update_removed_transactions(
cleanup_task.total_content_removed(), short_ids)
remove_from_tx_service_time = time.time()
# TODO : clean the short ids/transactions from the alarm queue after refactoring the transaction service
block_hash = block_msg.block_hash()
tx_service.on_block_cleaned_up(block_hash)
tx_hash_to_contents_len_after_cleanup = transaction_service.get_tx_hash_to_contents_len(
)
end_datetime = datetime.utcnow()
end_time = time.time()
logger.statistics({
"type":
"BlockTransactionsCleanup",
"block_hash":
repr(block_hash),
"unknown_tx_hashes_count":
unknown_tx_hashes_count,
"short_ids_count":
short_ids_count,
"block_transactions_count":
cleanup_task.txn_count(),
"start_datetime":
start_datetime,
"end_datetime":
end_datetime,
"task_init_time":
init_time - start_time,
"task_run_time":
task_run_time - init_time,
"tx_property_fetch_time":
tx_property_fetch_time - task_run_time,
"short_ids_fetch_time":
short_ids_fetch_time - tx_property_fetch_time,
"remove_from_tx_service_time":
remove_from_tx_service_time - short_ids_fetch_time,
"duration":
end_time - start_time,
"tx_hash_to_contents_len_before_cleanup":
tx_hash_to_contents_len_before_cleanup,
"tx_hash_to_contents_len_after_cleanup":
tx_hash_to_contents_len_after_cleanup,
})
self.block_cleanup_tasks.return_task(cleanup_task)
self._block_hash_marked_for_cleanup.discard(block_hash)
self.node.post_block_cleanup_tasks(
block_hash=block_hash,
short_ids=short_ids,
unknown_tx_hashes=(
Sha256Hash(convert.hex_to_bytes(tx_hash.hex_string()))
for tx_hash in cleanup_task.unknown_tx_hashes()))
def block_to_bx_block(self, block_msg: BlockOntMessage, tx_service: TransactionService) -> \
Tuple[memoryview, BlockInfo]:
"""
Compresses a Ontology block's transactions and packs it into a bloXroute block.
"""
compress_start_datetime = datetime.utcnow()
compress_start_timestamp = time.time()
size = 0
buf = deque()
short_ids = []
header = block_msg.txn_header()
size += len(header)
buf.append(header)
for tx in block_msg.txns():
tx_hash, _ = ont_messages_util.get_txid(tx)
short_id = tx_service.get_short_id(tx_hash)
if short_id == constants.NULL_TX_SID:
buf.append(tx)
size += len(tx)
else:
short_ids.append(short_id)
buf.append(ont_constants.ONT_SHORT_ID_INDICATOR_AS_BYTEARRAY)
size += 1
serialized_short_ids = compact_block_short_ids_serializer.serialize_short_ids_into_bytes(
short_ids)
buf.append(serialized_short_ids)
size += constants.UL_ULL_SIZE_IN_BYTES
merkle_root = block_msg.merkle_root()
buf.appendleft(merkle_root)
size += ont_constants.ONT_HASH_LEN
is_consensus_msg_buf = struct.pack("?", False)
buf.appendleft(is_consensus_msg_buf)
size += 1
offset_buf = struct.pack("<Q", size)
buf.appendleft(offset_buf)
size += len(serialized_short_ids)
block = bytearray(size)
off = 0
for blob in buf:
next_off = off + len(blob)
block[off:next_off] = blob
off = next_off
prev_block_hash = convert.bytes_to_hex(
block_msg.prev_block_hash().binary)
bx_block_hash = convert.bytes_to_hex(crypto.double_sha256(block))
original_size = len(block_msg.rawbytes())
block_info = BlockInfo(block_msg.block_hash(), short_ids,
compress_start_datetime, datetime.utcnow(),
(time.time() - compress_start_timestamp) * 1000,
block_msg.txn_count(), bx_block_hash,
prev_block_hash, original_size, size,
100 - float(size) / original_size * 100)
return memoryview(block), block_info
