def create_block(
parent_hash=default_config["GENESIS_PREVHASH"],
height=0,
timestamp=None,
difficulty=TEST_DIFFICULTY,
transactions=[],
gas_limit=3000000000,
referee_hashes=[],
author=default_config["GENESIS_COINBASE"],
deferred_state_root=default_config["GENESIS_STATE_ROOT"],
deferred_receipts_root=default_config["GENESIS_RECEIPTS_ROOT"],
adaptive=0):
if timestamp is None:
timestamp = int(time.time())
tx_root = utils.sha3(rlp.encode(Transactions(transactions)))
nonce = 0
while True:
header = BlockHeader(parent_hash=parent_hash,
height=height,
difficulty=difficulty,
timestamp=timestamp,
author=author,
transactions_root=tx_root,
gas_limit=gas_limit,
referee_hashes=referee_hashes,
nonce=nonce,
deferred_state_root=deferred_state_root,
deferred_receipts_root=deferred_receipts_root,
adaptive=adaptive)
if header.pow_decimal() * difficulty < HASH_MAX:
break
nonce += 1
block = Block(block_header=header, transactions=transactions)
return block
def create_block(
parent_hash=default_config["GENESIS_PREVHASH"],
height=0,
timestamp=None,
difficulty=TEST_DIFFICULTY,
gas_limit=default_config["GENESIS_GAS_LIMIT"],
referee_hashes=[],
author=default_config["GENESIS_COINBASE"],
deferred_state_root=default_config["GENESIS_STATE_ROOT"],
deferred_receipts_root=trie.
EMPTY_EPOCH_RECEIPT_ROOT_BY_NUMBER_OF_BLOCKS[0],
deferred_logs_bloom_hash=default_config["GENESIS_LOGS_BLOOM_HASH"],
adaptive=0,
transaction_root=None,
transactions=None,
pos_reference=[default_config["POS_GENESIS_BLOCK"]]):
if timestamp is None:
timestamp = int(time.time())
if transaction_root is None:
# So far we can not compute the transaction root in python,
# therefore we don't support filling in transactions without providing transaction root.
assert transactions is None
transaction_root = trie.NULL_ROOT
transactions = []
nonce = 0
while True:
header = BlockHeader(parent_hash=parent_hash,
height=height,
difficulty=difficulty,
timestamp=timestamp,
author=author,
transactions_root=transaction_root,
gas_limit=gas_limit,
referee_hashes=referee_hashes,
nonce=nonce,
deferred_state_root=deferred_state_root,
deferred_receipts_root=deferred_receipts_root,
deferred_logs_bloom_hash=deferred_logs_bloom_hash,
adaptive=adaptive,
pos_reference=pos_reference)
if header.pow_decimal() * difficulty < HASH_MAX:
break
nonce += 1
block = Block(block_header=header, transactions=transactions)
return block
