def status_thread():
last_str = None
last_time = 0
while True:
yield deferral.sleep(3)
try:
height = node.tracker.get_height(node.best_share_var.value)
this_str = 'P2Pool: %i shares in chain (%i verified/%i total) Peers: %i (%i incoming)' % (
height,
len(node.tracker.verified.items),
len(node.tracker.items),
len(node.p2p_node.peers),
sum(1 for peer in node.p2p_node.peers.itervalues() if peer.incoming),
) + (' FDs: %i R/%i W' % (len(reactor.getReaders()), len(reactor.getWriters())) if p2pool.DEBUG else '')
datums, dt = wb.local_rate_monitor.get_datums_in_last()
my_att_s = sum(datum['work']/dt for datum in datums)
my_shares_per_s = sum(datum['work']/dt/bitcoin_data.target_to_average_attempts(datum['share_target']) for datum in datums)
this_str += '\n Local: %sH/s in last %s Local dead on arrival: %s Expected time to share: %s' % (
math.format(int(my_att_s)),
math.format_dt(dt),
math.format_binomial_conf(sum(1 for datum in datums if datum['dead']), len(datums), 0.95),
math.format_dt(1/my_shares_per_s) if my_shares_per_s else '???',
)
if height > 2:
(stale_orphan_shares, stale_doa_shares), shares, _ = wb.get_stale_counts()
stale_prop = p2pool_data.get_average_stale_prop(node.tracker, node.best_share_var.value, min(60*60//net.SHARE_PERIOD, height))
real_att_s = p2pool_data.get_pool_attempts_per_second(node.tracker, node.best_share_var.value, min(height - 1, 60*60//net.SHARE_PERIOD)) / (1 - stale_prop)
this_str += '\n Shares: %i (%i orphan, %i dead) Stale rate: %s Efficiency: %s Current payout: %.4f %s' % (
shares, stale_orphan_shares, stale_doa_shares,
math.format_binomial_conf(stale_orphan_shares + stale_doa_shares, shares, 0.95),
math.format_binomial_conf(stale_orphan_shares + stale_doa_shares, shares, 0.95, lambda x: (1 - x)/(1 - stale_prop)),
node.get_current_txouts().get(bitcoin_data.pubkey_hash_to_script2(my_pubkey_hash), 0)*1e-8, net.PARENT.SYMBOL,
)
print(node.bitcoind_work.value['bits'])
print(real_att_s)
this_str += '\n Pool: %sH/s Stale rate: %.1f%% Expected time to block: %s' % (
math.format(int(real_att_s)),
100*stale_prop,
math.format_dt(2**256 / node.bitcoind_work.value['bits'].target / real_att_s),
)
for warning in p2pool_data.get_warnings(node.tracker, node.best_share_var.value, net, bitcoind_getinfo_var.value, node.bitcoind_work.value):
print >>sys.stderr, '#'*40
print >>sys.stderr, '>>> Warning: ' + warning
print >>sys.stderr, '#'*40
if gc.garbage:
print '%i pieces of uncollectable cyclic garbage! Types: %r' % (len(gc.garbage), map(type, gc.garbage))
if this_str != last_str or time.time() > last_time + 15:
print this_str
last_str = this_str
last_time = time.time()
except:
log.err()
def status_thread():
last_str = None
last_time = 0
while True:
yield deferral.sleep(3)
try:
height = node.tracker.get_height(node.best_share_var.value)
this_str = 'P2Pool: %i shares in chain (%i verified/%i total) Peers: %i (%i incoming)' % (
height,
len(node.tracker.verified.items),
len(node.tracker.items),
len(node.p2p_node.peers),
sum(1 for peer in node.p2p_node.peers.itervalues() if peer.incoming),
) + (' FDs: %i R/%i W' % (len(reactor.getReaders()), len(reactor.getWriters())) if p2pool.DEBUG else '')
datums, dt = wb.local_rate_monitor.get_datums_in_last()
my_att_s = sum(datum['work']/dt for datum in datums)
my_shares_per_s = sum(datum['work']/dt/bitcoin_data.target_to_average_attempts(datum['share_target']) for datum in datums)
this_str += '\n Local: %sH/s in last %s Local dead on arrival: %s Expected time to share: %s' % (
math.format(int(my_att_s)),
math.format_dt(dt),
math.format_binomial_conf(sum(1 for datum in datums if datum['dead']), len(datums), 0.95),
math.format_dt(1/my_shares_per_s) if my_shares_per_s else '???',
)
if height > 2:
(stale_orphan_shares, stale_doa_shares), shares, _ = wb.get_stale_counts()
stale_prop = p2pool_data.get_average_stale_prop(node.tracker, node.best_share_var.value, min(60*60//net.SHARE_PERIOD, height))
real_att_s = p2pool_data.get_pool_attempts_per_second(node.tracker, node.best_share_var.value, min(height - 1, 60*60//net.SHARE_PERIOD)) / (1 - stale_prop)
this_str += '\n Shares: %i (%i orphan, %i dead) Stale rate: %s Efficiency: %s Current payout: %.4f %s' % (
shares, stale_orphan_shares, stale_doa_shares,
math.format_binomial_conf(stale_orphan_shares + stale_doa_shares, shares, 0.95),
math.format_binomial_conf(stale_orphan_shares + stale_doa_shares, shares, 0.95, lambda x: (1 - x)/(1 - stale_prop)),
### CJWinty: dimecoin has only 5 digits
node.get_current_txouts().get(bitcoin_data.pubkey_hash_to_script2(my_pubkey_hash), 0)*1e-5, net.PARENT.SYMBOL,
)
this_str += '\n Pool: %sH/s Stale rate: %.1f%% Expected time to block: %s' % (
math.format(int(real_att_s)),
100*stale_prop,
math.format_dt(2**256 / node.dimecoind_work.value['bits'].target / real_att_s),
)
for warning in p2pool_data.get_warnings(node.tracker, node.best_share_var.value, net, dimecoind_warning_var.value, node.dimecoind_work.value):
print >>sys.stderr, '#'*40
print >>sys.stderr, '>>> Warning: ' + warning
print >>sys.stderr, '#'*40
if gc.garbage:
print '%i pieces of uncollectable cyclic garbage! Types: %r' % (len(gc.garbage), map(type, gc.garbage))
if this_str != last_str or time.time() > last_time + 15:
print this_str
last_str = this_str
last_time = time.time()
except:
log.err()
def get_user_details(self, username):
contents = re.split('([+/])', username)
assert len(contents) % 2 == 1
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()
set_adaptive_target = (self.diff_policy == 'F') or ((self.diff_policy == 'A') and (desired_share_target is None))
set_adaptive_pseudo = (self.diff_policy == 'F') or ((self.diff_policy == 'A') and (desired_pseudoshare_target is None))
user_rate = None
pool_rate = None
if set_adaptive_target: # calculate pool hashrate
height = self.node.tracker.get_height(self.node.best_share_var.value)
if height > 5: # we want at least 6 shares in chain
stale_prop = p2pool_data.get_average_stale_prop(self.node.tracker, self.node.best_share_var.value, min(60*60//self.node.net.SHARE_PERIOD, height))
pool_rate = p2pool_data.get_pool_attempts_per_second(self.node.tracker, self.node.best_share_var.value, min(height - 1, 60*60//self.node.net.SHARE_PERIOD)) / (1 - stale_prop)
if set_adaptive_pseudo or set_adaptive_target: # calculate user's hashrate
datums, dt = self.local_rate_monitor.get_datums_in_last()
npoints = sum(datum['user'] == user for datum in datums)
if npoints > 5: # at least 6 hashrate datums for the user
user_rate = 0
for datum in datums:
if datum['user'] == user:
user_rate += datum['work']/dt
if set_adaptive_target:
desired_share_target = None
if user_rate is not None and pool_rate is not None:
if user_rate and pool_rate:
# min 20 shares per block AND min 20 shares per chain
desired_share_target = 20 * (max(self.node.bitcoind_work.value['bits'].target * pool_rate, 2**256 // (self.node.net.CHAIN_LENGTH * self.node.net.SHARE_PERIOD)) // user_rate)
if set_adaptive_pseudo:
desired_pseudoshare_target = None
if user_rate is not None:
if user_rate:
# min 20 pseudoshares per 10 minutes
desired_pseudoshare_target = 20 * (2**256 // user_rate // (10*60))
if random.uniform(0, 100) < self.worker_fee:
pubkey_hash = self.my_pubkey_hash
else:
try:
pubkey_hash = bitcoin_data.address_to_pubkey_hash(user, self.node.net.PARENT)
except: # XXX blah
pubkey_hash = self.my_pubkey_hash
return user, pubkey_hash, desired_share_target, desired_pseudoshare_target
def get_user_details(self, username):
contents = re.split('([+/])', username)
assert len(contents) % 2 == 1
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()
set_adaptive_target = (self.diff_policy
== 'F') or ((self.diff_policy == 'A') and
(desired_share_target is None))
set_adaptive_pseudo = (self.diff_policy == 'F') or (
(self.diff_policy == 'A') and (desired_pseudoshare_target is None))
user_rate = None
pool_rate = None
if set_adaptive_target: # calculate pool hashrate
height = self.node.tracker.get_height(
self.node.best_share_var.value)
if height > 5: # we want at least 6 shares in chain
stale_prop = p2pool_data.get_average_stale_prop(
self.node.tracker, self.node.best_share_var.value,
min(60 * 60 // self.node.net.SHARE_PERIOD, height))
pool_rate = p2pool_data.get_pool_attempts_per_second(
self.node.tracker, self.node.best_share_var.value,
min(height - 1, 60 * 60 //
self.node.net.SHARE_PERIOD)) / (1 - stale_prop)
if set_adaptive_pseudo or set_adaptive_target: # calculate user's hashrate
datums, dt = self.local_rate_monitor.get_datums_in_last()
npoints = sum(datum['user'] == user for datum in datums)
if npoints > 5: # at least 6 hashrate datums for the user
user_rate = 0
for datum in datums:
if datum['user'] == user:
user_rate += datum['work'] / dt
if set_adaptive_target:
desired_share_target = None
if user_rate is not None and pool_rate is not None:
if user_rate and pool_rate:
# min 20 shares per block AND min 20 shares per chain
desired_share_target = 20 * (max(
self.node.bitcoind_work.value['bits'].target *
pool_rate, 2**256 //
(self.node.net.CHAIN_LENGTH *
self.node.net.SHARE_PERIOD)) // user_rate)
if set_adaptive_pseudo:
desired_pseudoshare_target = None
if user_rate is not None:
if user_rate:
# min 20 pseudoshares per 10 minutes
desired_pseudoshare_target = 20 * (2**256 // user_rate //
(10 * 60))
if random.uniform(0, 100) < self.worker_fee:
pubkey_hash = self.my_pubkey_hash
else:
try:
pubkey_hash = bitcoin_data.address_to_pubkey_hash(
user, self.node.net.PARENT)
except: # XXX blah
pubkey_hash = self.my_pubkey_hash
return user, pubkey_hash, desired_share_target, desired_pseudoshare_target
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
desired_share_target = None
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
set_adaptive_target = (self.diff_policy
== 'F') or ((self.diff_policy == 'D') and
(desired_share_target is None))
set_adaptive_pseudo = (self.diff_policy == 'F') or (
(self.diff_policy == 'D') and (desired_pseudoshare_target is None))
user_rate = None
pool_rate = None
if set_adaptive_target: # calculate pool hashrate
height = self.node.tracker.get_height(
self.node.best_share_var.value)
if height > 5: # we want at least 6 shares in chain
stale_prop = p2pool_data.get_average_stale_prop(
self.node.tracker, self.node.best_share_var.value,
min(60 * 60 // self.node.net.SHARE_PERIOD, height))
pool_rate = p2pool_data.get_pool_attempts_per_second(
self.node.tracker, self.node.best_share_var.value,
min(height - 1, 60 * 60 //
self.node.net.SHARE_PERIOD)) / (1 - stale_prop)
if set_adaptive_pseudo or set_adaptive_target: # calculate user's hashrate
datums, dt = self.local_rate_monitor.get_datums_in_last()
npoints = sum(datum['user'] == user for datum in datums)
if npoints > 5: # at least 6 hashrate datums for the user
user_rate = 0
for datum in datums:
if datum['user'] == user:
user_rate += datum['work'] / dt
if set_adaptive_target:
desired_share_target = None
if user_rate is not None and pool_rate is not None:
if user_rate and pool_rate:
desired_share_target = 20 * (
max(
self.node.bitcoind_work.value['bits'].target *
pool_rate, 2**256 //
(self.node.net.CHAIN_LENGTH *
self.node.net.SHARE_PERIOD)) // user_rate
) # min 20 shares per block AND min 20 shares per chain
if set_adaptive_pseudo:
desired_pseudoshare_target = None
if user_rate is not None:
if user_rate:
desired_pseudoshare_target = 20 * (
2**256 // user_rate //
(10 * 60)) # min 20 pseudoshares per 10 minutes
if desired_share_target is None:
desired_share_target = 2**265 - 1
if random.uniform(0, 100) < self.worker_fee:
pubkey_hash = self.my_pubkey_hash
else:
try:
pubkey_hash = bitcoin_data.address_to_pubkey_hash(
user, self.node.net.PARENT)
except: # XXX blah
pubkey_hash = self.my_pubkey_hash
return user, pubkey_hash, desired_share_target, desired_pseudoshare_target
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
desired_share_target = None
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
set_adaptive_target = (self.diff_policy == "F") or (
(self.diff_policy == "D") and (desired_share_target is None)
)
set_adaptive_pseudo = (self.diff_policy == "F") or (
(self.diff_policy == "D") and (desired_pseudoshare_target is None)
)
user_rate = None
pool_rate = None
if set_adaptive_target: # calculate pool hashrate
height = self.node.tracker.get_height(self.node.best_share_var.value)
if height > 5: # we want at least 6 shares in chain
stale_prop = p2pool_data.get_average_stale_prop(
self.node.tracker,
self.node.best_share_var.value,
min(60 * 60 // self.node.net.SHARE_PERIOD, height),
)
pool_rate = p2pool_data.get_pool_attempts_per_second(
self.node.tracker,
self.node.best_share_var.value,
min(height - 1, 60 * 60 // self.node.net.SHARE_PERIOD),
) / (1 - stale_prop)
if set_adaptive_pseudo or set_adaptive_target: # calculate user's hashrate
datums, dt = self.local_rate_monitor.get_datums_in_last()
npoints = sum(datum["user"] == user for datum in datums)
if npoints > 5: # at least 6 hashrate datums for the user
user_rate = 0
for datum in datums:
if datum["user"] == user:
user_rate += datum["work"] / dt
if set_adaptive_target:
desired_share_target = None
if user_rate is not None and pool_rate is not None:
if user_rate and pool_rate:
desired_share_target = 20 * (
max(
self.node.bitcoind_work.value["bits"].target * pool_rate,
2 ** 256 // (self.node.net.CHAIN_LENGTH * self.node.net.SHARE_PERIOD),
)
// user_rate
) # min 20 shares per block AND min 20 shares per chain
if set_adaptive_pseudo:
desired_pseudoshare_target = None
if user_rate is not None:
if user_rate:
desired_pseudoshare_target = 20 * (
2 ** 256 // user_rate // (10 * 60)
) # min 20 pseudoshares per 10 minutes
if desired_share_target is None:
desired_share_target = 2 ** 265 - 1
if random.uniform(0, 100) < self.worker_fee:
pubkey_hash = self.my_pubkey_hash
else:
try:
pubkey_hash = bitcoin_data.address_to_pubkey_hash(user, self.node.net.PARENT)
except: # XXX blah
pubkey_hash = self.my_pubkey_hash
return user, pubkey_hash, desired_share_target, desired_pseudoshare_target
def get_work(self, user, pubkey_hash, desired_share_target, desired_pseudoshare_target):
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 self.merged_work.value:
tree, size = bitcoin_data.make_auxpow_tree(self.merged_work.value)
mm_hashes = [self.merged_work.value.get(tree.get(i), dict(hash=0))['hash'] for i in xrange(size)]
mm_data = '\xfa\xbemm' + bitcoin_data.aux_pow_coinbase_type.pack(dict(
merkle_root=bitcoin_data.merkle_hash(mm_hashes),
size=size,
nonce=0,
))
mm_later = [(aux_work, mm_hashes.index(aux_work['hash']), mm_hashes) for chain_id, aux_work in self.merged_work.value.iteritems()]
else:
mm_data = ''
mm_later = []
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']))
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_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)
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
local_addr_rates = self.get_local_addr_rates()
pool_rate = None
if desired_share_target is None:
height = self.node.tracker.get_height(self.node.best_share_var.value)
stale_prop = p2pool_data.get_average_stale_prop(self.node.tracker, self.node.best_share_var.value, min(60*60//self.node.net.SHARE_PERIOD, height))
pool_rate = p2pool_data.get_pool_attempts_per_second(self.node.tracker, self.node.best_share_var.value, min(height - 1, 60*60//self.node.net.SHARE_PERIOD)) / (1 - stale_prop)
desired_share_target = 2**256-1
local_hash_rate = local_addr_rates.get(pubkey_hash, 0)
if self.share_rate is not None:
if self.share_rate_type == 'address': # per-address
if local_addr_rates is not None:
local_rate = local_addr_rates.get(pubkey_hash, 0)
else:
local_rate = self.get_local_addr_rate(pubkey_hash)
else: # per-miner
local_rate = self.get_miner_rate(user)
if local_rate > 0.0:
# desired_share_target = 20 * (max(self.node.bitcoind_work.value['bits'].target * pool_rate, 2**256 // (self.node.net.CHAIN_LENGTH * self.node.net.SHARE_PERIOD)) // local_rate) # min 20 shares per block AND min 20 shares per chain
desired_share_target = min(desired_share_target,
bitcoin_data.average_attempts_to_target(local_rate * self.node.net.SHARE_PERIOD / 0.0167)) # limit to 1.67% of pool shares by modulating share difficulty
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,
share_data=dict(
previous_share_hash=self.node.best_share_var.value,
coinbase=(script.create_push_script([
self.current_work.value['height'],
] + ([mm_data] if mm_data else []) + [
]) + self.current_work.value['coinbaseflags'])[:100],
nonce=random.randrange(2**32),
pubkey_hash=pubkey_hash,
subsidy=self.current_work.value['subsidy'],
donation=math.perfect_round(65535*self.donation_percentage/100),
stale_info=(lambda (orphans, doas), total, (orphans_recorded_in_chain, doas_recorded_in_chain):
'orphan' if orphans > orphans_recorded_in_chain else
'doa' if doas > doas_recorded_in_chain else
None
)(*self.get_stale_counts()),
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),
desired_target=desired_share_target,
ref_merkle_link=dict(branch=[], index=0),
desired_other_transaction_hashes_and_fees=zip(tx_hashes, self.current_work.value['transaction_fees']),
net=self.node.net,
known_txs=tx_map,
base_subsidy=self.node.net.PARENT.SUBSIDY_FUNC(self.current_work.value['height']),
)
packed_gentx = bitcoin_data.tx_type.pack(gentx)
other_transactions = [tx_map[tx_hash] for tx_hash in other_transaction_hashes]
mm_later = [(dict(aux_work, target=aux_work['target'] if aux_work['target'] != 'p2pool' else share_info['bits'].target), index, hashes) for aux_work, index, hashes in mm_later]
if desired_pseudoshare_target is None:
target = bitcoin_data.difficulty_to_target(self.min_difficulty)
if self.share_rate is not None:
if self.share_rate_type == 'address': # per-address
if local_addr_rates is not None:
local_rate = local_addr_rates.get(pubkey_hash, 0)
else:
local_rate = self.get_local_addr_rate(pubkey_hash)
else: # per-miner
local_rate = self.get_miner_rate(user)
if local_rate > 0:
# target = min(target, 20 * (2**256 // local_rate // (10*60))) # min 20 pseudoshares per 10 minutes
target = min(target, bitcoin_data.average_attempts_to_target(local_rate * 60 / self.share_rate))
else: # per-node
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
difficulty = bitcoin_data.target_to_difficulty(target)
rounded_difficulty = 1
if difficulty >= 1:
while (rounded_difficulty + rounded_difficulty * 2) / 2 < difficulty:
rounded_difficulty = rounded_difficulty * 2
else:
while (rounded_difficulty + rounded_difficulty / 2) / 2 >= difficulty:
rounded_difficulty = rounded_difficulty / 2
target = bitcoin_data.difficulty_to_target(rounded_difficulty)
else:
target = desired_pseudoshare_target
target = max(target, share_info['bits'].target)
for aux_work, index, hashes in mm_later:
target = max(target, aux_work['target'])
target = math.clip(target, self.node.net.PARENT.SANE_TARGET_RANGE)
getwork_time = time.time()
lp_count = self.new_work_event.times
merkle_link = bitcoin_data.calculate_merkle_link([None] + other_transaction_hashes, 0)
print 'New work for worker! Difficulty: %.06f Share difficulty: %.06f Total block value: %.6f %s including %i transactions' % (
bitcoin_data.target_to_difficulty(target),
bitcoin_data.target_to_difficulty(share_info['bits'].target),
self.current_work.value['subsidy']*1e-8, self.node.net.PARENT.SYMBOL,
len(self.current_work.value['transactions']),
)
#need this for stats
self.last_work_shares.value[bitcoin_data.pubkey_hash_to_address(pubkey_hash, self.node.net.PARENT)]=share_info['bits']
ba = dict(
version=min(self.current_work.value['version'], 2),
previous_block=self.current_work.value['previous_block'],
merkle_link=merkle_link,
coinb1=packed_gentx[:-self.COINBASE_NONCE_LENGTH-4],
coinb2=packed_gentx[-4:],
timestamp=self.current_work.value['time'],
bits=self.current_work.value['bits'],
share_target=target,
)
received_header_hashes = set()
def got_response(header, user, coinbase_nonce):
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))
pow_hash = self.node.net.PARENT.POW_FUNC(bitcoin_data.block_header_type.pack(header))
try:
if pow_hash <= header['bits'].target or p2pool.DEBUG:
helper.submit_block(dict(header=header, txs=[new_gentx] + other_transactions), False, self.node.factory, self.node.bitcoind, self.node.bitcoind_work, self.node.net)
if pow_hash <= header['bits'].target:
print
print 'GOT BLOCK FROM MINER! Passing to bitcoind! %s%064x' % (self.node.net.PARENT.BLOCK_EXPLORER_URL_PREFIX, header_hash)
print
except:
log.err(None, 'Error while processing potential block:')
user, _, _, _ = self.get_user_details(user)
assert header['previous_block'] == ba['previous_block']
assert header['merkle_root'] == bitcoin_data.check_merkle_link(bitcoin_data.hash256(new_packed_gentx), merkle_link)
assert header['bits'] == ba['bits']
on_time = True
for aux_work, index, hashes in mm_later:
try:
if pow_hash <= aux_work['target'] or p2pool.DEBUG:
df = deferral.retry('Error submitting merged block: (will retry)', 10, 10)(aux_work['merged_proxy'].rpc_getauxblock)(
pack.IntType(256, 'big').pack(aux_work['hash']).encode('hex'),
bitcoin_data.aux_pow_type.pack(dict(
merkle_tx=dict(
tx=new_gentx,
block_hash=header_hash,
merkle_link=merkle_link,
),
merkle_link=bitcoin_data.calculate_merkle_link(hashes, index),
parent_block_header=header,
)).encode('hex'),
)
@df.addCallback
def _(result, aux_work=aux_work):
if result != (pow_hash <= aux_work['target']):
print >>sys.stderr, 'Merged block submittal result: %s Expected: %s' % (result, pow_hash <= aux_work['target'])
else:
print 'Merged block submittal result: %s' % (result,)
@df.addErrback
def _(err):
log.err(err, 'Error submitting merged block:')
except:
log.err(None, 'Error while processing merged mining POW:')
if pow_hash <= share_info['bits'].target and header_hash not in received_header_hashes:
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,
p2pool_data.format_hash(share.hash),
p2pool_data.format_hash(share.previous_hash),
time.time() - getwork_time,
' DEAD ON ARRIVAL' if not (self.new_work_event.times == lp_count) else '',
)
self.my_share_hashes.add(share.hash)
if not on_time:
self.my_doa_share_hashes.add(share.hash)
self.node.tracker.add(share)
self.node.set_best_share()
try:
if (pow_hash <= header['bits'].target or p2pool.DEBUG) and self.node.p2p_node is not None:
self.node.p2p_node.broadcast_share(share.hash)
except:
log.err(None, 'Error forwarding block solution:')
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,)
print ' Hash: %56x' % (pow_hash,)
print ' Target: %56x' % (target,)
elif header_hash in received_header_hashes:
print >>sys.stderr, 'Worker %s submitted share more than once!' % (user,)
else:
received_header_hashes.add(header_hash)
self.pseudoshare_received.happened(bitcoin_data.target_to_average_attempts(target), not on_time, 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, 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
return ba, got_response
