def _create_block(self):
return BlockWrapper.wrap(
Block(header_signature='some_block_id',
batches=[],
header=BlockHeader(block_num=0,
previous_block_id=NULL_BLOCK_IDENTIFIER).
SerializeToString()))
def _transaction_index_keys(block):
blkw = BlockWrapper.wrap(block)
keys = []
for batch in blkw.batches:
for txn in batch.transactions:
keys.append(txn.header_signature.encode())
return keys
def _transaction_index_keys(block):
blkw = BlockWrapper.wrap(block)
keys = []
for batch in blkw.batches:
for txn in batch.transactions:
keys.append(txn.header_signature.encode())
return keys
def _create_block(self):
return BlockWrapper.wrap(
Block(
header_signature='some_block_id',
batches=[],
header=BlockHeader(
block_num=0, previous_block_id=NULL_BLOCK_IDENTIFIER)
.SerializeToString()))
def __init__(self,
block_store,
block_manager,
transaction_executor,
state_view_factory,
block_sender,
batch_sender,
identity_signer,
data_dir,
config_dir,
permission_verifier,
batch_observers,
batch_injector_factory=None):
"""
Initialize the BlockPublisher object
Args:
block_store (:obj: `BlockStore`): A BlockStore instance
block_manager (:obj:`BlockManager`): A BlockManager instance
transaction_executor (:obj:`TransactionExecutor`): A
TransactionExecutor instance.
state_view_factory (:obj:`NativeStateViewFactory`):
NativeStateViewFactory for read-only state views.
block_sender (:obj:`BlockSender`): The BlockSender instance.
batch_sender (:obj:`BatchSender`): The BatchSender instance.
chain_head_lock (:obj:`RLock`): The chain head lock.
identity_signer (:obj:`Signer`): Cryptographic signer for signing
blocks
data_dir (str): path to location where persistent data for the
consensus module can be stored.
config_dir (str): path to location where configuration can be
found.
batch_injector_factory (:obj:`BatchInjectorFatctory`): A factory
for creating BatchInjectors.
"""
super(BlockPublisher, self).__init__('block_publisher_drop')
if block_store.chain_head is not None:
chain_head = BlockWrapper.wrap(block_store.chain_head)
chain_head_block = chain_head.block
else:
chain_head_block = None
self._to_exception(
PY_LIBRARY.call('block_publisher_new', block_store.pointer,
block_manager.pointer,
ctypes.py_object(transaction_executor),
state_view_factory.pointer,
ctypes.py_object(block_sender),
ctypes.py_object(batch_sender),
ctypes.py_object(chain_head_block),
ctypes.py_object(identity_signer),
ctypes.py_object(data_dir),
ctypes.py_object(config_dir),
ctypes.py_object(permission_verifier),
ctypes.py_object(batch_observers),
ctypes.py_object(batch_injector_factory),
ctypes.byref(self.pointer)))
def chain_update(self, block, receipts):
"""Removes batches from the pending cache if found in the block store,
and notifies any observers.
"""
block = BlockWrapper.wrap(block)
with self._lock:
for batch_id in block.header.batch_ids:
if batch_id in self._pending:
self._pending.remove(batch_id)
self._update_observers(batch_id,
ClientBatchStatus.COMMITTED)
def update_chain(self, new_chain, old_chain=None):
"""
Set the current chain head, does not validate that the block
store is in a valid state, ie that all the head block and all
predecessors are in the store.
:param new_chain: The list of blocks of the new chain.
:param old_chain: The list of blocks of the existing chain to
remove from the block store.
store.
:return:
None
"""
new_chain = [BlockWrapper.wrap(b) for b in new_chain]
if old_chain:
old_chain = [BlockWrapper.wrap(b) for b in old_chain]
add_pairs = [(blkw.identifier, blkw) for blkw in new_chain]
if old_chain:
del_keys = [blkw.identifier for blkw in old_chain]
else:
del_keys = []
self._block_store.update(add_pairs, del_keys)
def _get_block(self, key):
value = self._block_store.get(key)
if value is None:
raise KeyError('Block "{}" not found in store'.format(key))
return BlockWrapper.wrap(value)
def _block_num_index_keys(block):
blkw = BlockWrapper.wrap(block)
# Format the number to a 64bit hex value, for natural ordering
return [BlockStore.block_num_to_hex(blkw.block_num).encode()]
def _batch_index_keys(block):
blkw = BlockWrapper.wrap(block)
return [batch.header_signature.encode() for batch in blkw.batches]
def wrap_block(blk):
return BlockWrapper.wrap(blk)
def _get_block(self, key):
value = self._block_store.get(key)
if value is None:
raise KeyError('Block "{}" not found in store'.format(key))
return BlockWrapper.wrap(value)
def _block_num_index_keys(block):
blkw = BlockWrapper.wrap(block)
# Format the number to a 64bit hex value, for natural ordering
return [BlockStore.block_num_to_hex(blkw.block_num).encode()]
def _batch_index_keys(block):
blkw = BlockWrapper.wrap(block)
return [batch.header_signature.encode()
for batch in blkw.batches]
def __init__(self,
block_manager,
transaction_executor,
batch_committed,
transaction_committed,
state_view_factory,
block_sender,
batch_sender,
chain_head,
identity_signer,
data_dir,
config_dir,
permission_verifier,
batch_observers,
batch_injector_factory=None):
"""
Initialize the BlockPublisher object
Args:
block_manager (:obj:`BlockManager`): A BlockManager instance
transaction_executor (:obj:`TransactionExecutor`): A
TransactionExecutor instance.
batch_committed (fn(batch_id) -> bool): A function for checking if
a batch is committed.
transaction_committed (fn(transaction_id) -> bool): A function for
checking if a transaction is committed.
state_view_factory (:obj:`NativeStateViewFactory`):
NativeStateViewFactory for read-only state views.
block_sender (:obj:`BlockSender`): The BlockSender instance.
batch_sender (:obj:`BatchSender`): The BatchSender instance.
chain_head (:obj:`BlockWrapper`): The initial chain head.
chain_head_lock (:obj:`RLock`): The chain head lock.
identity_signer (:obj:`Signer`): Cryptographic signer for signing
blocks
data_dir (str): path to location where persistent data for the
consensus module can be stored.
config_dir (str): path to location where configuration can be
found.
batch_injector_factory (:obj:`BatchInjectorFatctory`): A factory
for creating BatchInjectors.
"""
super(BlockPublisher, self).__init__('block_publisher_drop')
if chain_head is not None:
chain_head = BlockWrapper.wrap(chain_head)
chain_head_block = chain_head.block
else:
chain_head_block = None
self._to_exception(PY_LIBRARY.call(
'block_publisher_new',
block_manager.pointer,
ctypes.py_object(transaction_executor),
ctypes.py_object(batch_committed),
ctypes.py_object(transaction_committed),
state_view_factory.pointer,
ctypes.py_object(block_sender),
ctypes.py_object(batch_sender),
ctypes.py_object(chain_head_block),
ctypes.py_object(identity_signer),
ctypes.py_object(data_dir),
ctypes.py_object(config_dir),
ctypes.py_object(permission_verifier),
ctypes.py_object(batch_observers),
ctypes.py_object(batch_injector_factory),
ctypes.byref(self.pointer)))
