def deserialize_child(parent, rlpdata):
"""
deserialization w/ replaying transactions
"""
header_args, transaction_list, uncles = rlp.decode(rlpdata)
assert len(header_args) == len(blocks.block_structure)
kargs = dict(transaction_list=transaction_list, uncles=uncles)
# Deserialize all properties
for i, (name, typ, default) in enumerate(blocks.block_structure):
kargs[name] = utils.decoders[typ](header_args[i])
block = blocks.Block.init_from_parent(parent,
kargs['coinbase'],
extra_data=kargs['extra_data'],
timestamp=kargs['timestamp'])
block.finalize() # this is the first potential state change
# replay transactions
for tx_lst_serialized, _state_root, _gas_used_encoded in transaction_list:
tx = transactions.Transaction.create(tx_lst_serialized)
logger.debug("data %r", tx.data)
logger.debug('applying %r', tx)
logger.debug('applying %r', tx.to_dict())
logger.debug('block.gas_used before: %r', block.gas_used)
success, output = processblock.apply_transaction(block, tx)
logger.debug('block.gas_used after: %r', block.gas_used)
logger.debug('success: %r', success)
diff = utils.decode_int(_gas_used_encoded) - block.gas_used
logger.debug("GAS_USED DIFF %r", diff)
assert utils.decode_int(_gas_used_encoded) == block.gas_used
assert _state_root.encode('hex') == block.state.root_hash.encode('hex')
# checks
assert block.prevhash == parent.hash
assert block.tx_list_root == kargs['tx_list_root']
assert block.gas_used == kargs['gas_used']
assert block.gas_limit == kargs['gas_limit']
assert block.timestamp == kargs['timestamp']
assert block.difficulty == kargs['difficulty']
assert block.number == kargs['number']
assert block.extra_data == kargs['extra_data']
assert utils.sha3(rlp.encode(block.uncles)) == kargs['uncles_hash']
assert block.state.root_hash.encode('hex') == kargs['state_root'].encode(
'hex')
block.uncles_hash = kargs['uncles_hash']
block.nonce = kargs['nonce']
block.min_gas_price = kargs['min_gas_price']
return block
def deserialize_child(parent, rlpdata):
"""
deserialization w/ replaying transactions
"""
header_args, transaction_list, uncles = rlp.decode(rlpdata)
assert len(header_args) == len(blocks.block_structure)
kargs = dict(transaction_list=transaction_list, uncles=uncles)
# Deserialize all properties
for i, (name, typ, default) in enumerate(blocks.block_structure):
kargs[name] = utils.decoders[typ](header_args[i])
block = blocks.Block.init_from_parent(parent, kargs['coinbase'],
extra_data=kargs['extra_data'],
timestamp=kargs['timestamp'])
block.finalize() # this is the first potential state change
# replay transactions
for tx_lst_serialized, _state_root, _gas_used_encoded in transaction_list:
tx = transactions.Transaction.create(tx_lst_serialized)
logger.debug("data %r", tx.data)
logger.debug('applying %r', tx)
logger.debug('applying %r', tx.to_dict())
logger.debug('block.gas_used before: %r', block.gas_used)
success, output = processblock.apply_transaction(block, tx)
logger.debug('block.gas_used after: %r', block.gas_used)
logger.debug('success: %r', success)
diff = utils.decode_int(_gas_used_encoded) - block.gas_used
logger.debug("GAS_USED DIFF %r", diff)
assert utils.decode_int(_gas_used_encoded) == block.gas_used
assert _state_root.encode('hex') == block.state.root_hash.encode('hex')
# checks
assert block.prevhash == parent.hash
assert block.tx_list_root == kargs['tx_list_root']
assert block.gas_used == kargs['gas_used']
assert block.gas_limit == kargs['gas_limit']
assert block.timestamp == kargs['timestamp']
assert block.difficulty == kargs['difficulty']
assert block.number == kargs['number']
assert block.extra_data == kargs['extra_data']
assert utils.sha3(rlp.encode(block.uncles)) == kargs['uncles_hash']
assert block.state.root_hash.encode(
'hex') == kargs['state_root'].encode('hex')
block.uncles_hash = kargs['uncles_hash']
block.nonce = kargs['nonce']
block.min_gas_price = kargs['min_gas_price']
return block
def decode_int_from_hex(x):
r = utils.decode_int(x.decode('hex').lstrip("\x00"))
return r
def decode_int_from_hex(x):
r = utils.decode_int(x.decode('hex').lstrip("\x00"))
return r
def sha3(x):
return utils.decode_int(utils.zunpad(utils.sha3(x)))