def block_received(self, source, block: Block):
self.pow.last_pb_time = ntp.getTime()
logger.info('>>> Received Block #%d %s', block.block_number,
bin2hstr(block.headerhash))
if source != self._target_channel:
if self._target_channel is None:
logger.warning('Received block and target channel is None')
else:
logger.warning('Received block from unexpected peer')
logger.warning('Expected peer: %s', self._target_channel.peer)
logger.warning('Found peer: %s', source.peer)
return
if block.block_number != self._last_requested_block_number:
logger.warning('Did not match %s',
self._last_requested_block_number)
self._xrd_node.peer_manager.ban_channel(source)
return
target_start_blocknumber = self._target_node_header_hash.block_number
expected_headerhash = self._target_node_header_hash.headerhashes[
block.block_number - target_start_blocknumber]
if block.headerhash != expected_headerhash:
logger.warning('Did not match headerhash')
logger.warning('Expected headerhash %s', expected_headerhash)
logger.warning('Found headerhash %s', block.headerhash)
self._xrd_node.peer_manager.ban_channel(source)
return
if not block.validate(self._chain_manager, self.pow.future_blocks):
logger.warning('Syncing Failed: Block Validation Failed')
self._xrd_node.peer_manager.ban_channel(source)
return
if self._chain_manager.add_block(block, check_stale=False):
if self._chain_manager.last_block.headerhash == block.headerhash:
self.pow.suspend_mining_timestamp = ntp.getTime(
) + config.dev.sync_delay_mining
else:
logger.warning('Failed to Add Block')
self._xrd_node.peer_manager.ban_channel(source)
return
try:
reactor.download_monitor.cancel()
except Exception as e:
logger.warning("PB: %s", e)
if self.is_syncing_finished():
return
self._last_requested_block_number += 1
self.peer_fetch_block()
def pre_block_logic(self, block: Block):
logger.debug('LOCK - TRY - pre_block_logic')
with self.miner.lock:
logger.debug('LOCK - LOCKED - pre_block_logic')
if not block.validate(self.chain_manager, self.future_blocks):
logger.warning('Block Validation failed for #%s %s',
block.block_number, bin2hstr(block.headerhash))
return False
dev_config = self.chain_manager.get_config_by_block_number(
block.block_number)
if block.is_future_block(dev_config):
delay = abs(block.timestamp - ntp.getTime()) + 1
reactor.callLater(delay, self.process_future_blocks)
self.add_future_block(block)
return True
logger.debug('Inside add_block')
result = self.chain_manager.add_block(block)
logger.debug('trigger_miner %s', self.chain_manager.trigger_miner)
if self.chain_manager.trigger_miner:
logger.debug('try last block')
last_block = self.chain_manager.last_block
logger.debug('got last block')
self._mine_next(last_block)
if not result:
logger.debug('Block Rejected %s %s', block.block_number,
bin2hstr(block.headerhash))
return False
reactor.callLater(0, self.broadcast_block, block)
logger.debug('LOCK - RELEASE - pre_block_logic')
return result