import base64
import random
+import re
import sys
import time
import p2pool, p2pool.data as p2pool_data
class WorkerBridge(worker_interface.WorkerBridge):
- COINBASE_NONCE_LENGTH = 4
+ COINBASE_NONCE_LENGTH = 8
def __init__(self, node, my_pubkey_hash, donation_percentage, merged_urls, worker_fee):
worker_interface.WorkerBridge.__init__(self)
self.donation_percentage = donation_percentage
self.worker_fee = worker_fee
+ self.net = self.node.net.PARENT
self.running = True
self.pseudoshare_received = variable.Event()
self.share_received = variable.Event()
self.local_rate_monitor = math.RateMonitor(10*60)
+ self.local_addr_rate_monitor = math.RateMonitor(10*60)
self.removed_unstales_var = variable.Variable((0, 0, 0))
self.removed_doa_unstales_var = variable.Variable(0)
merged_proxy = jsonrpc.HTTPProxy(merged_url, dict(Authorization='Basic ' + base64.b64encode(merged_userpass)))
while self.running:
auxblock = yield deferral.retry('Error while calling merged getauxblock:', 30)(merged_proxy.rpc_getauxblock)()
- self.merged_work.set(dict(self.merged_work.value, **{auxblock['chainid']: dict(
+ self.merged_work.set(math.merge_dicts(self.merged_work.value, {auxblock['chainid']: dict(
hash=int(auxblock['hash'], 16),
target='p2pool' if auxblock['target'] == 'p2pool' else pack.IntType(256).unpack(auxblock['target'].decode('hex')),
merged_proxy=merged_proxy,
return (my_shares_not_in_chain - my_doa_shares_not_in_chain, my_doa_shares_not_in_chain), my_shares, (orphans_recorded_in_chain, doas_recorded_in_chain)
- def get_user_details(self, user):
- desired_pseudoshare_target = None
- if '+' in user:
- user, desired_pseudoshare_difficulty_str = user.rsplit('+', 1)
- try:
- desired_pseudoshare_target = bitcoin_data.difficulty_to_target(float(desired_pseudoshare_difficulty_str))
- except:
- pass
+ def get_user_details(self, username):
+ contents = re.split('([+/])', username)
+ assert len(contents) % 2 == 1
- desired_share_target = 2**256 - 1
- if '/' in user:
- user, min_diff_str = user.rsplit('/', 1)
- try:
- desired_share_target = bitcoin_data.difficulty_to_target(float(min_diff_str))
- except:
- pass
+ user, contents2 = contents[0], contents[1:]
+
+ desired_pseudoshare_target = None
+ desired_share_target = None
+ for symbol, parameter in zip(contents2[::2], contents2[1::2]):
+ if symbol == '+':
+ try:
+ desired_pseudoshare_target = bitcoin_data.difficulty_to_target(float(parameter))
+ except:
+ if p2pool.DEBUG:
+ log.err()
+ elif symbol == '/':
+ try:
+ desired_share_target = bitcoin_data.difficulty_to_target(float(parameter))
+ except:
+ if p2pool.DEBUG:
+ log.err()
if random.uniform(0, 100) < self.worker_fee:
pubkey_hash = self.my_pubkey_hash
return user, pubkey_hash, desired_share_target, desired_pseudoshare_target
def preprocess_request(self, user):
+ if (self.node.p2p_node is None or len(self.node.p2p_node.peers) == 0) and self.node.net.PERSIST:
+ raise jsonrpc.Error_for_code(-12345)(u'p2pool is not connected to any peers')
+ if time.time() > self.current_work.value['last_update'] + 60:
+ raise jsonrpc.Error_for_code(-12345)(u'lost contact with bitcoind')
user, pubkey_hash, desired_share_target, desired_pseudoshare_target = self.get_user_details(user)
return pubkey_hash, desired_share_target, desired_pseudoshare_target
+ def _estimate_local_hash_rate(self):
+ if len(self.recent_shares_ts_work) == 50:
+ hash_rate = sum(work for ts, work in self.recent_shares_ts_work[1:])//(self.recent_shares_ts_work[-1][0] - self.recent_shares_ts_work[0][0])
+ if hash_rate:
+ return hash_rate
+ return None
+
+ def get_local_rates(self):
+ miner_hash_rates = {}
+ miner_dead_hash_rates = {}
+ datums, dt = self.local_rate_monitor.get_datums_in_last()
+ for datum in datums:
+ miner_hash_rates[datum['user']] = miner_hash_rates.get(datum['user'], 0) + datum['work']/dt
+ if datum['dead']:
+ miner_dead_hash_rates[datum['user']] = miner_dead_hash_rates.get(datum['user'], 0) + datum['work']/dt
+ return miner_hash_rates, miner_dead_hash_rates
+
+ def get_local_addr_rates(self):
+ addr_hash_rates = {}
+ datums, dt = self.local_addr_rate_monitor.get_datums_in_last()
+ for datum in datums:
+ addr_hash_rates[datum['pubkey_hash']] = addr_hash_rates.get(datum['pubkey_hash'], 0) + datum['work']/dt
+ return addr_hash_rates
+
def get_work(self, pubkey_hash, desired_share_target, desired_pseudoshare_target):
- if (self.node.p2p_node is None or len(self.node.p2p_node.peers) == 0) and self.node.net.PERSIST:
- raise jsonrpc.Error_for_code(-12345)(u'p2pool is not connected to any peers')
if self.node.best_share_var.value is None and self.node.net.PERSIST:
raise jsonrpc.Error_for_code(-12345)(u'p2pool is downloading shares')
- if time.time() > self.current_work.value['last_update'] + 60:
- raise jsonrpc.Error_for_code(-12345)(u'lost contact with bitcoind')
if self.merged_work.value:
tree, size = bitcoin_data.make_auxpow_tree(self.merged_work.value)
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']))
- if self.node.best_share_var.value is None:
+ previous_share = self.node.tracker.items[self.node.best_share_var.value] if self.node.best_share_var.value is not None else None
+ if previous_share is None:
share_type = p2pool_data.Share
else:
- previous_share = self.node.tracker.items[self.node.best_share_var.value]
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:
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
+ upgraded = counts.get(successor_type.VERSION, 0)/sum(counts.itervalues())
+ if upgraded > .65:
+ print 'Switchover imminent. Upgraded: %.3f%% Threshold: %.3f%%' % (upgraded*100, 95)
+ print
+ # Share -> NewShare only valid if 95% of hashes in [net.CHAIN_LENGTH*9//10, net.CHAIN_LENGTH] for new version
if counts.get(successor_type.VERSION, 0) > sum(counts.itervalues())*95//100:
share_type = successor_type
else:
share_type = previous_share_type
+ if desired_share_target is None:
+ desired_share_target = 2**256-1
+ local_hash_rate = self._estimate_local_hash_rate()
+ if local_hash_rate is not None:
+ desired_share_target = min(desired_share_target,
+ bitcoin_data.average_attempts_to_target(local_hash_rate * self.node.net.SHARE_PERIOD / 0.05)) # limit to 5% of pool shares by modulating share difficulty
+
+ local_addr_rates = self.get_local_addr_rates()
+ lookbehind = 3600//self.node.net.SHARE_PERIOD
+ block_subsidy = self.node.bitcoind_work.value['subsidy']
+ if previous_share is not None and self.node.tracker.get_height(previous_share.hash) > lookbehind:
+ expected_payout_per_block = local_addr_rates.get(pubkey_hash, 0)/p2pool_data.get_pool_attempts_per_second(self.node.tracker, self.node.best_share_var.value, lookbehind) \
+ * block_subsidy*(1-self.donation_percentage/100) # XXX doesn't use global stale rate to compute pool hash
+ if expected_payout_per_block < self.node.net.PARENT.DUST_THRESHOLD:
+ desired_share_target = min(desired_share_target,
+ bitcoin_data.average_attempts_to_target((bitcoin_data.target_to_average_attempts(self.node.bitcoind_work.value['bits'].target)*self.node.net.SPREAD)*self.node.net.PARENT.DUST_THRESHOLD/block_subsidy)
+ )
+
if True:
share_info, gentx, other_transaction_hashes, get_share = share_type.generate_transaction(
tracker=self.node.tracker,
'doa' if doas > doas_recorded_in_chain else
None
)(*self.get_stale_counts()),
- desired_version=11,
+ desired_version=(share_type.SUCCESSOR if share_type.SUCCESSOR is not None else share_type).VOTING_VERSION,
),
block_target=self.current_work.value['bits'].target,
desired_timestamp=int(time.time() + 0.5),
if desired_pseudoshare_target is None:
target = 2**256-1
- if len(self.recent_shares_ts_work) == 50:
- hash_rate = sum(work for ts, work in self.recent_shares_ts_work[1:])//(self.recent_shares_ts_work[-1][0] - self.recent_shares_ts_work[0][0])
- if hash_rate:
- target = min(target, int(2**256/hash_rate))
+ local_hash_rate = self._estimate_local_hash_rate()
+ if local_hash_rate is not None:
+ target = min(target,
+ bitcoin_data.average_attempts_to_target(local_hash_rate * 1)) # limit to 1 share response every second by modulating pseudoshare difficulty
else:
target = desired_pseudoshare_target
target = max(target, share_info['bits'].target)
version=min(self.current_work.value['version'], 2),
previous_block=self.current_work.value['previous_block'],
merkle_link=merkle_link,
- coinb1=packed_gentx[:-4-4],
+ coinb1=packed_gentx[:-self.COINBASE_NONCE_LENGTH-4],
coinb2=packed_gentx[-4:],
timestamp=self.current_work.value['time'],
bits=self.current_work.value['bits'],
received_header_hashes = set()
def got_response(header, user, coinbase_nonce):
- assert len(coinbase_nonce) == self.COINBASE_NONCE_LENGTH == 4
- new_packed_gentx = packed_gentx[:-4-4] + coinbase_nonce + packed_gentx[-4:] if coinbase_nonce != '\0'*self.COINBASE_NONCE_LENGTH else packed_gentx
+ assert len(coinbase_nonce) == self.COINBASE_NONCE_LENGTH
+ new_packed_gentx = packed_gentx[:-self.COINBASE_NONCE_LENGTH-4] + coinbase_nonce + packed_gentx[-4:] if coinbase_nonce != '\0'*self.COINBASE_NONCE_LENGTH else packed_gentx
new_gentx = bitcoin_data.tx_type.unpack(new_packed_gentx) if coinbase_nonce != '\0'*self.COINBASE_NONCE_LENGTH else gentx
header_hash = bitcoin_data.hash256(bitcoin_data.block_header_type.pack(header))
log.err(None, 'Error while processing merged mining POW:')
if pow_hash <= share_info['bits'].target and header_hash not in received_header_hashes:
- share = get_share(header, pack.IntType(32).unpack(coinbase_nonce))
+ last_txout_nonce = pack.IntType(8*self.COINBASE_NONCE_LENGTH).unpack(coinbase_nonce)
+ share = get_share(header, last_txout_nonce)
print 'GOT SHARE! %s %s prev %s age %.2fs%s' % (
user,
except:
log.err(None, 'Error forwarding block solution:')
- self.share_received.happened(bitcoin_data.target_to_average_attempts(share.target), not on_time)
+ self.share_received.happened(bitcoin_data.target_to_average_attempts(share.target), not on_time, share.hash)
if pow_hash > target:
print 'Worker %s submitted share with hash > target:' % (user,)
self.recent_shares_ts_work.append((time.time(), bitcoin_data.target_to_average_attempts(target)))
while len(self.recent_shares_ts_work) > 50:
self.recent_shares_ts_work.pop(0)
- self.local_rate_monitor.add_datum(dict(work=bitcoin_data.target_to_average_attempts(target), dead=not on_time, user=user))
+ self.local_rate_monitor.add_datum(dict(work=bitcoin_data.target_to_average_attempts(target), dead=not on_time, user=user, share_target=share_info['bits'].target))
+ self.local_addr_rate_monitor.add_datum(dict(work=bitcoin_data.target_to_average_attempts(target), pubkey_hash=pubkey_hash))
return on_time
git://git.novaco.in / p2pool.git / blobdiff