def __init__(self, raiden, token_network_identifier):
chain_state = views.state_from_raiden(raiden)
token_network_state = views.get_token_network_by_identifier(
chain_state,
token_network_identifier,
)
token_network_registry = views.get_token_network_registry_by_token_network_identifier(
chain_state,
token_network_identifier,
)
# TODO:
# - Add timeout for transaction polling, used to overwrite the RaidenAPI
# defaults
# - Add a proper selection strategy (#576)
self.funds = 0
self.initial_channel_target = 0
self.joinable_funds_target = 0
self.raiden = raiden
self.registry_address = token_network_registry.address
self.token_network_identifier = token_network_identifier
self.token_address = token_network_state.token_address
self.lock = Semaphore() #: protects self.funds and self.initial_channel_target
self.api = RaidenAPI(raiden)
def __init__(self, raiden, token_network_identifier):
chain_state = views.state_from_raiden(raiden)
token_network_state = views.get_token_network_by_identifier(
chain_state,
token_network_identifier,
)
token_network_registry = views.get_token_network_registry_by_token_network_identifier(
chain_state,
token_network_identifier,
)
# TODO:
# - Add timeout for transaction polling, used to overwrite the RaidenAPI
# defaults
# - Add a proper selection strategy (#576)
self.funds = 0
self.initial_channel_target = 0
self.joinable_funds_target = 0
self.raiden = raiden
self.registry_address = token_network_registry.address
self.token_network_identifier = token_network_identifier
self.token_address = token_network_state.token_address
self.lock = Semaphore() #: protects self.funds and self.initial_channel_target
self.api = RaidenAPI(raiden)
def handle_token_network_action(
chain_state: ChainState,
state_change: StateChange,
) -> TransitionResult:
token_network_state = views.get_token_network_by_identifier(
chain_state,
state_change.token_network_identifier,
)
payment_network_state = views.get_token_network_registry_by_token_network_identifier(
chain_state,
state_change.token_network_identifier,
)
assert payment_network_state, 'We should always get a payment_network_state'
payment_network_id = payment_network_state.address
events = list()
if token_network_state:
pseudo_random_generator = chain_state.pseudo_random_generator
iteration = token_network.state_transition(
payment_network_id,
token_network_state,
state_change,
pseudo_random_generator,
chain_state.block_number,
)
assert iteration.new_state, 'No token network state transition leads to None'
events = iteration.events
return TransitionResult(chain_state, events)
def handle_token_network_action(
chain_state: ChainState,
state_change: StateChange,
) -> TransitionResult:
token_network_state = views.get_token_network_by_identifier(
chain_state,
state_change.token_network_identifier,
)
payment_network_state = views.get_token_network_registry_by_token_network_identifier(
chain_state,
state_change.token_network_identifier,
)
assert payment_network_state, 'We should always get a payment_network_state'
payment_network_id = payment_network_state.address
events = list()
if token_network_state:
pseudo_random_generator = chain_state.pseudo_random_generator
iteration = token_network.state_transition(
payment_network_id,
token_network_state,
state_change,
pseudo_random_generator,
chain_state.block_number,
)
assert iteration.new_state, 'No token network state transition leads to None'
events = iteration.events
return TransitionResult(chain_state, events)
def handle_channel_batch_unlock(
chain_state: ChainState,
state_change: ContractReceiveChannelBatchUnlock,
) -> TransitionResult:
token_network_identifier = state_change.token_network_identifier
token_network_state = views.get_token_network_by_identifier(
chain_state,
token_network_identifier,
)
events = []
if token_network_state:
payment_network_state = views.get_token_network_registry_by_token_network_identifier(
chain_state,
token_network_state.address,
)
pseudo_random_generator = chain_state.pseudo_random_generator
participant1 = state_change.participant
participant2 = state_change.partner
for channel_state in token_network_state.channelidentifiers_to_channels.values():
are_addresses_valid1 = (
channel_state.our_state.address == participant1 and
channel_state.partner_state.address == participant2
)
are_addresses_valid2 = (
channel_state.our_state.address == participant2 and
channel_state.partner_state.address == participant1
)
is_valid_locksroot = True
is_valid_channel = (
(are_addresses_valid1 or are_addresses_valid2) and
is_valid_locksroot
)
if is_valid_channel:
sub_iteration = channel.state_transition(
channel_state,
state_change,
pseudo_random_generator,
chain_state.block_number,
)
events.extend(sub_iteration.events)
if sub_iteration.new_state is None:
del payment_network_state.tokenaddresses_to_tokennetworks[
token_network_state.token_address
]
del payment_network_state.tokenidentifiers_to_tokennetworks[
token_network_identifier
]
return TransitionResult(chain_state, events)
