DONATION_SCRIPT = '4104ffd03de44a6e11b9917f3a29f9443283d9871c9d743ef30d5eddcd37094b64d1b3d8090496b53256786bf5c82932ec23c3b74d9f05a6f95a8b5529352656664bac'.decode('hex')
class Share(object):
+ VERSION = 7
+ SUCCESSOR = None
+
small_block_header_type = pack.ComposedType([
('version', pack.VarIntType()), # XXX must be constrained to 32 bits
('previous_block', pack.PossiblyNoneType(0, pack.IntType(256))),
return self.as_share1b()
def check(self, tracker):
+ from p2pool import p2p
if self.share_data['previous_share_hash'] is not None:
previous_share = tracker.items[self.share_data['previous_share_hash']]
- if isinstance(previous_share, NewShare):
- from p2pool import p2p
- raise p2p.PeerMisbehavingError('''Share can't follow NewShare''')
+ if type(self) is type(previous_share):
+ pass
+ elif type(self) is type(previous_share).SUCCESSOR:
+ if tracker.get_height(previous_share.hash) < self.net.CHAIN_LENGTH:
+ from p2pool import p2p
+ raise p2p.PeerMisbehavingError('switch without enough history')
+
+ # switch only valid if 85% of hashes in [self.net.CHAIN_LENGTH*9//10, self.net.CHAIN_LENGTH] for new version
+ counts = get_desired_version_counts(tracker,
+ tracker.get_nth_parent_hash(previous_share.hash, self.net.CHAIN_LENGTH*9//10), self.net.CHAIN_LENGTH//10)
+ if counts.get(self.VERSION, 0) < sum(counts.itervalues())*85//100:
+ raise p2p.PeerMisbehavingError('switch without enough hash power upgraded')
+ else:
+ raise p2p.PeerMisbehavingError('''%s can't follow %s''' % (type(self).__name__, type(previous_share).__name__))
+
share_info, gentx, other_transaction_hashes, get_share = self.generate_transaction(tracker, self.share_info['share_data'], self.header['bits'].target, self.share_info['timestamp'], self.share_info['bits'].target, self.common['ref_merkle_link'], [], self.net) # ok because desired_other_transaction_hashes is only used in get_share
if share_info != self.share_info:
raise ValueError('share_info invalid')
class NewShare(object):
VERSION = 8
+ SUCCESSOR = None
other_txs = None
return dict(type=self.VERSION, contents=self.share_type.pack(self.contents))
def check(self, tracker):
+ from p2pool import p2p
if self.share_data['previous_share_hash'] is not None:
previous_share = tracker.items[self.share_data['previous_share_hash']]
- if isinstance(previous_share, Share):
+ if type(self) is type(previous_share):
+ pass
+ elif type(self) is type(previous_share).SUCCESSOR:
if tracker.get_height(previous_share.hash) < self.net.CHAIN_LENGTH:
from p2pool import p2p
- raise p2p.PeerMisbehavingError('NewShare without enough history')
- else:
- # Share -> NewShare only valid if 85% of hashes in [self.net.CHAIN_LENGTH*9//10, self.net.CHAIN_LENGTH] for new version
- counts = get_desired_version_counts(tracker,
- tracker.get_nth_parent_hash(previous_share.hash, self.net.CHAIN_LENGTH*9//10), self.net.CHAIN_LENGTH//10)
- if counts.get(self.VERSION, 0) < sum(counts.itervalues())*85//100:
- from p2pool import p2p
- raise p2p.PeerMisbehavingError('NewShare without enough hash power upgraded')
+ raise p2p.PeerMisbehavingError('switch without enough history')
+
+ # switch only valid if 85% of hashes in [self.net.CHAIN_LENGTH*9//10, self.net.CHAIN_LENGTH] for new version
+ counts = get_desired_version_counts(tracker,
+ tracker.get_nth_parent_hash(previous_share.hash, self.net.CHAIN_LENGTH*9//10), self.net.CHAIN_LENGTH//10)
+ if counts.get(self.VERSION, 0) < sum(counts.itervalues())*85//100:
+ raise p2p.PeerMisbehavingError('switch without enough hash power upgraded')
+ else:
+ raise p2p.PeerMisbehavingError('''%s can't follow %s''' % (type(self).__name__, type(previous_share).__name__))
other_tx_hashes = [tracker.items[tracker.get_nth_parent_hash(self.hash, x['share_count'])].share_info['new_transaction_hashes'][x['tx_count']] for x in self.share_info['transaction_hash_refs']]
tx_hashes = [bitcoin_data.hash256(bitcoin_data.tx_type.pack(tx)) for tx in self.current_work.value['transactions']]
tx_map = dict(zip(tx_hashes, self.current_work.value['transactions']))
- share_type = p2pool_data.NewShare
- if self.node.best_share_var.value is not None:
+ if self.node.best_share_var.value is None:
+ share_type = p2pool_data.Share
+ else:
previous_share = self.node.tracker.items[self.node.best_share_var.value]
- if isinstance(previous_share, p2pool_data.Share):
+ previous_share_type = type(previous_share)
+
+ if previous_share_type.SUCCESSOR is None or self.node.tracker.get_height(previous_share.hash) < self.node.net.CHAIN_LENGTH:
+ share_type = previous_share_type
+ else:
+ successor_type = previous_share_type.SUCCESSOR
+
+ counts = p2pool_data.get_desired_version_counts(self.node.tracker,
+ self.node.tracker.get_nth_parent_hash(previous_share.hash, self.node.net.CHAIN_LENGTH*9//10), self.node.net.CHAIN_LENGTH//10)
# Share -> NewShare only valid if 85% of hashes in [net.CHAIN_LENGTH*9//10, net.CHAIN_LENGTH] for new version
- if self.node.tracker.get_height(previous_share.hash) < self.node.net.CHAIN_LENGTH:
- share_type = p2pool_data.Share
- elif time.time() < 1351383661 and self.node.net.NAME == 'bitcoin':
- share_type = p2pool_data.Share
+ if counts.get(successor_type.VERSION, 0) > sum(counts.itervalues())*95//100:
+ share_type = successor_type
else:
- counts = p2pool_data.get_desired_version_counts(self.node.tracker,
- self.node.tracker.get_nth_parent_hash(previous_share.hash, self.node.net.CHAIN_LENGTH*9//10), self.node.net.CHAIN_LENGTH//10)
- if counts.get(p2pool_data.NewShare.VERSION, 0) < sum(counts.itervalues())*95//100:
- share_type = p2pool_data.Share
+ share_type = previous_share_type
if True:
share_info, gentx, other_transaction_hashes, get_share = share_type.generate_transaction(
'doa' if doas > doas_recorded_in_chain else
None
)(*self.get_stale_counts()),
- desired_version=7,
+ desired_version=share_type.SUCCESSOR.VERSION if share_type.SUCCESSOR is not None else share_type.VERSION,
),
block_target=self.current_work.value['bits'].target,
desired_timestamp=int(time.time() + 0.5),