def __init__(self, chain, private_key_bin, transport, discovery, config):
if not isinstance(private_key_bin, bytes) or len(private_key_bin) != 32:
raise ValueError('invalid private_key')
if config['settle_timeout'] < NETTINGCHANNEL_SETTLE_TIMEOUT_MIN:
raise ValueError('settle_timeout must be larger-or-equal to {}'.format(
NETTINGCHANNEL_SETTLE_TIMEOUT_MIN
))
# create lock file only if SQLite backend is file, to prevent two instances
# from accesing a single db
if config['database_path'] != ':memory:':
self.db_lock = filelock.FileLock(path.dirname(config['database_path']) + "/.lock")
self.db_lock.acquire(timeout=0)
assert self.db_lock.is_locked
else:
self.db_lock = None
private_key = PrivateKey(private_key_bin)
pubkey = private_key.public_key.format(compressed=False)
protocol = RaidenProtocol(
transport,
discovery,
self,
config['protocol']['retry_interval'],
config['protocol']['retries_before_backoff'],
config['protocol']['nat_keepalive_retries'],
config['protocol']['nat_keepalive_timeout'],
config['protocol']['nat_invitation_timeout'],
)
transport.protocol = protocol
self.token_to_channelgraph = dict()
self.manager_to_token = dict()
self.swapkey_to_tokenswap = dict()
self.swapkey_to_greenlettask = dict()
self.identifier_to_statemanagers = defaultdict(list)
self.identifier_to_results = defaultdict(list)
# This is a map from a hashlock to a list of channels, the same
# hashlock can be used in more than one token (for tokenswaps), a
# channel should be removed from this list only when the lock is
# released/withdrawn but not when the secret is registered.
self.token_to_hashlock_to_channels = defaultdict(lambda: defaultdict(list))
self.chain = chain
self.config = config
self.privkey = private_key_bin
self.pubkey = pubkey
self.private_key = private_key
self.address = privatekey_to_address(private_key_bin)
self.protocol = protocol
message_handler = RaidenMessageHandler(self)
state_machine_event_handler = StateMachineEventHandler(self)
pyethapp_blockchain_events = PyethappBlockchainEvents()
greenlet_task_dispatcher = GreenletTasksDispatcher()
alarm = AlarmTask(chain)
# prime the block number cache and set the callbacks
self._blocknumber = alarm.last_block_number
alarm.register_callback(self.poll_blockchain_events)
alarm.register_callback(self.set_block_number)
self.transaction_log = StateChangeLog(
storage_instance=StateChangeLogSQLiteBackend(
database_path=config['database_path']
)
)
registry_event = gevent.spawn(
discovery.register,
self.address,
config['external_ip'],
config['external_port'],
)
self.alarm = alarm
self.message_handler = message_handler
self.state_machine_event_handler = state_machine_event_handler
self.pyethapp_blockchain_events = pyethapp_blockchain_events
self.greenlet_task_dispatcher = greenlet_task_dispatcher
self.on_message = message_handler.on_message
self.tokens_to_connectionmanagers = dict()
self.serialization_file = None
self.protocol.start()
alarm.start()
if config['database_path'] != ':memory:':
snapshot_dir = os.path.join(
path.dirname(self.config['database_path']),
'snapshots'
)
if not os.path.exists(snapshot_dir):
os.makedirs(
snapshot_dir
)
self.serialization_file = path.join(
snapshot_dir,
'data.pickle',
)
self.register_registry(self.chain.default_registry.address)
self.restore_from_snapshots()
registry_event.join()
def __init__(self, chain, default_registry, private_key_bin, transport,
discovery, config):
if not isinstance(private_key_bin,
bytes) or len(private_key_bin) != 32:
raise ValueError('invalid private_key')
invalid_timeout = (
config['settle_timeout'] < NETTINGCHANNEL_SETTLE_TIMEOUT_MIN
or config['settle_timeout'] > NETTINGCHANNEL_SETTLE_TIMEOUT_MAX)
if invalid_timeout:
raise ValueError('settle_timeout must be in range [{}, {}]'.format(
NETTINGCHANNEL_SETTLE_TIMEOUT_MIN,
NETTINGCHANNEL_SETTLE_TIMEOUT_MAX))
self.token_to_channelgraph = dict()
self.tokens_to_connectionmanagers = dict()
self.manager_to_token = dict()
self.swapkey_to_tokenswap = dict()
self.swapkey_to_greenlettask = dict()
self.identifier_to_statemanagers = defaultdict(list)
self.identifier_to_results = defaultdict(list)
# This is a map from a hashlock to a list of channels, the same
# hashlock can be used in more than one token (for tokenswaps), a
# channel should be removed from this list only when the lock is
# released/withdrawn but not when the secret is registered.
self.token_to_hashlock_to_channels = defaultdict(
lambda: defaultdict(list))
self.chain = chain
self.default_registry = default_registry
self.config = config
self.privkey = private_key_bin
self.address = privatekey_to_address(private_key_bin)
endpoint_registration_event = gevent.spawn(
discovery.register,
self.address,
config['external_ip'],
config['external_port'],
)
endpoint_registration_event.link_exception(
endpoint_registry_exception_handler)
self.private_key = PrivateKey(private_key_bin)
self.pubkey = self.private_key.public_key.format(compressed=False)
self.protocol = RaidenProtocol(
transport,
discovery,
self,
config['protocol']['retry_interval'],
config['protocol']['retries_before_backoff'],
config['protocol']['nat_keepalive_retries'],
config['protocol']['nat_keepalive_timeout'],
config['protocol']['nat_invitation_timeout'],
)
# TODO: remove this cyclic dependency
transport.protocol = self.protocol
self.message_handler = RaidenMessageHandler(self)
self.state_machine_event_handler = StateMachineEventHandler(self)
self.blockchain_events = BlockchainEvents()
self.greenlet_task_dispatcher = GreenletTasksDispatcher()
self.on_message = self.message_handler.on_message
self.alarm = AlarmTask(chain)
self.shutdown_timeout = config['shutdown_timeout']
self._block_number = None
self.stop_event = Event()
self.start_event = Event()
self.chain.client.inject_stop_event(self.stop_event)
self.transaction_log = StateChangeLog(
storage_instance=StateChangeLogSQLiteBackend(
database_path=config['database_path']))
self.wal = None
self.database_path = config['database_path']
if self.database_path != ':memory:':
self.database_dir = os.path.dirname(self.database_path)
self.lock_file = os.path.join(self.database_dir, '.lock')
self.snapshot_dir = os.path.join(self.database_dir, 'snapshots')
self.serialization_file = os.path.join(self.snapshot_dir,
'data.pickle')
if not os.path.exists(self.snapshot_dir):
os.makedirs(self.snapshot_dir)
# Prevent concurrent acces to the same db
self.db_lock = filelock.FileLock(self.lock_file)
else:
self.database_dir = None
self.lock_file = None
self.snapshot_dir = None
self.serialization_file = None
self.db_lock = None
# If the endpoint registration fails the node will quit, this must
# finish before starting the protocol
endpoint_registration_event.join()
self.start()
def __init__(self, chain, private_key_bin, transport, discovery, config):
if not isinstance(private_key_bin, bytes) or len(private_key_bin) != 32:
raise ValueError('invalid private_key')
if config['settle_timeout'] < NETTINGCHANNEL_SETTLE_TIMEOUT_MIN:
raise ValueError('settle_timeout must be larger-or-equal to {}'.format(
NETTINGCHANNEL_SETTLE_TIMEOUT_MIN
))
private_key = PrivateKey(private_key_bin)
pubkey = private_key.public_key.format(compressed=False)
protocol = RaidenProtocol(
transport,
discovery,
self,
config['protocol']['retry_interval'],
config['protocol']['retries_before_backoff'],
config['protocol']['nat_keepalive_retries'],
config['protocol']['nat_keepalive_timeout'],
config['protocol']['nat_invitation_timeout'],
)
transport.protocol = protocol
self.channelgraphs = dict()
self.manager_token = dict()
self.swapkeys_tokenswaps = dict()
self.swapkeys_greenlettasks = dict()
self.identifier_to_statemanagers = defaultdict(list)
self.identifier_to_results = defaultdict(list)
# This is a map from a hashlock to a list of channels, the same
# hashlock can be used in more than one token (for tokenswaps), a
# channel should be removed from this list only when the lock is
# released/withdrawn but not when the secret is registered.
self.tokens_hashlocks_channels = defaultdict(lambda: defaultdict(list))
self.chain = chain
self.config = config
self.privkey = private_key_bin
self.pubkey = pubkey
self.private_key = private_key
self.address = privatekey_to_address(private_key_bin)
self.protocol = protocol
message_handler = RaidenMessageHandler(self)
state_machine_event_handler = StateMachineEventHandler(self)
pyethapp_blockchain_events = PyethappBlockchainEvents()
greenlet_task_dispatcher = GreenletTasksDispatcher()
alarm = AlarmTask(chain)
# prime the block number cache and set the callbacks
self._blocknumber = alarm.last_block_number
alarm.register_callback(lambda _: self.poll_blockchain_events())
alarm.register_callback(self.set_block_number)
alarm.start()
self.transaction_log = StateChangeLog(
storage_instance=StateChangeLogSQLiteBackend(
database_path=config['database_path']
)
)
self.channels_serialization_path = None
self.channels_queue_path = None
if config['database_path'] != ':memory:':
self.channels_serialization_path = path.join(
path.dirname(self.config['database_path']),
'channels.pickle',
)
self.channels_queue_path = path.join(
path.dirname(self.config['database_path']),
'queues.pickle',
)
if path.exists(self.channels_serialization_path):
serialized_channels = list()
with open(self.channels_serialization_path, 'r') as handler:
try:
while True:
serialized_channels.append(pickle.load(handler))
except EOFError:
pass
for channel in serialized_channels:
self.restore_channel(channel)
if path.exists(self.channels_queue_path):
with open(self.channels_queue_path, 'r') as handler:
channel_state = pickle.load(handler)
for restored_queue in channel_state['channel_queues']:
self.restore_queue(restored_queue)
self.protocol.receivedhashes_acks = channel_state['receivedhashes_acks']
self.protocol.nodeaddresses_nonces = channel_state['nodeaddresses_nonces']
self.alarm = alarm
self.message_handler = message_handler
self.state_machine_event_handler = state_machine_event_handler
self.pyethapp_blockchain_events = pyethapp_blockchain_events
self.greenlet_task_dispatcher = greenlet_task_dispatcher
self.on_message = message_handler.on_message
self.tokens_connectionmanagers = dict() # token_address: ConnectionManager