def handle_block(
channel_state: NettingChannelState,
state_change: Block,
block_number: typing.BlockNumber,
) -> TransitionResult:
assert state_change.block_number == block_number
events = list()
if get_status(channel_state) == CHANNEL_STATE_CLOSED:
closed_block_number = channel_state.close_transaction.finished_block_number
settlement_end = closed_block_number + channel_state.settle_timeout
if state_change.block_number > settlement_end:
channel_state.settle_transaction = TransactionExecutionStatus(
state_change.block_number,
None,
None,
)
event = ContractSendChannelSettle(channel_state.identifier)
events.append(event)
while is_deposit_confirmed(channel_state, block_number):
order_deposit_transaction = heapq.heappop(
channel_state.deposit_transaction_queue)
apply_channel_newbalance(
channel_state,
order_deposit_transaction.transaction,
)
return TransitionResult(channel_state, events)
def set_settled(
channel_state: NettingChannelState,
block_number: typing.BlockNumber,
) -> None:
if not channel_state.settle_transaction:
channel_state.settle_transaction = TransactionExecutionStatus(
None,
block_number,
TransactionExecutionStatus.SUCCESS,
)
elif not channel_state.settle_transaction.finished_block_number:
channel_state.settle_transaction.finished_block_number = block_number
channel_state.settle_transaction.result = TransactionExecutionStatus.SUCCESS