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 = dash_data.difficulty_to_target(float(parameter))
except:
if p2pool.DEBUG:
log.err()
elif symbol == '/':
try:
desired_share_target = dash_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
else:
try:
pubkey_hash = dash_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 = dash_data.difficulty_to_target(
float(parameter))
except:
if p2pool.DEBUG:
log.err()
elif symbol == '/':
try:
desired_share_target = dash_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
else:
try:
pubkey_hash = dash_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].strip(), 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 = dash_data.difficulty_to_target(float(parameter))
except:
if p2pool.DEBUG:
log.err()
elif symbol == '/':
try:
desired_share_target = dash_data.difficulty_to_target(float(parameter))
except:
if p2pool.DEBUG:
log.err()
if self.args.address == 'dynamic':
i = self.pubkeys.weighted()
pubkey_hash = self.pubkeys.keys[i]
c = time.time()
if (c - self.pubkeys.stamp) > self.args.timeaddresses:
self.freshen_addresses(c)
if random.uniform(0, 100) < self.worker_fee:
pubkey_hash = self.my_pubkey_hash
else:
try:
pubkey_hash = dash_data.address_to_pubkey_hash(user, self.node.net.PARENT)
except: # XXX blah
if self.args.address != 'dynamic':
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):
global print_throttle
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 self.merged_work.value:
tree, size = dash_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' + dash_data.aux_pow_coinbase_type.pack(
dict(
merkle_root=dash_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 = [
dash_data.hash256(dash_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)
# 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()
local_addr_rates = self.get_local_addr_rates()
if desired_share_target is None:
desired_share_target = 2**256 - 1
local_hash_rate = local_addr_rates.get(pubkey_hash, 0)
if local_hash_rate > 0.0:
desired_share_target = min(
desired_share_target,
dash_data.average_attempts_to_target(
local_hash_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.dashd_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,
dash_data.average_attempts_to_target(
(dash_data.target_to_average_attempts(
self.node.dashd_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'] +
self.node.net.COINBASEEXT)[:100],
coinbase_payload=self.current_work.
value['coinbase_payload'],
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,
payment_amount=self.current_work.value['payment_amount'],
packed_payments=self.current_work.value['packed_payments'],
),
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.current_work.value['subsidy'],
)
packed_gentx = dash_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 = dash_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,
dash_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,
dash_data.average_attempts_to_target(local_hash_rate *
1)
) # limit to 1 share response every second by modulating pseudoshare difficulty
difficulty = dash_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 = dash_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 = dash_data.calculate_merkle_link(
[None] + other_transaction_hashes, 0)
if print_throttle is 0.0:
print_throttle = time.time()
else:
current_time = time.time()
if (current_time - print_throttle) > 5.0:
print 'New work for worker %s! Difficulty: %.06f Share difficulty: %.06f (speed %.06f) Total block value: %.6f %s including %i transactions' % (
dash_data.pubkey_hash_to_address(pubkey_hash,
self.node.net.PARENT),
dash_data.target_to_difficulty(target),
dash_data.target_to_difficulty(share_info['bits'].target),
local_addr_rates.get(pubkey_hash, 0),
self.current_work.value['subsidy'] * 1e-8,
self.node.net.PARENT.SYMBOL,
len(self.current_work.value['transactions']),
)
print_throttle = time.time()
#need this for stats
self.last_work_shares.value[dash_data.pubkey_hash_to_address(
pubkey_hash, self.node.net.PARENT)] = share_info['bits']
coinbase_payload_data_size = 0
if gentx['version'] == 3 and gentx['type'] == 5:
coinbase_payload_data_size = len(pack.VarStrType().pack(
gentx['extra_payload']))
ba = dict(
version=self.current_work.value['version'],
previous_block=self.current_work.value['previous_block'],
merkle_link=merkle_link,
coinb1=packed_gentx[:-coinbase_payload_data_size -
self.COINBASE_NONCE_LENGTH - 4],
coinb2=packed_gentx[-coinbase_payload_data_size - 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[:-coinbase_payload_data_size -
self.COINBASE_NONCE_LENGTH -
4] + coinbase_nonce + packed_gentx[
-coinbase_payload_data_size -
4:] if coinbase_nonce != '\0' * self.COINBASE_NONCE_LENGTH else packed_gentx
new_gentx = dash_data.tx_type.unpack(
new_packed_gentx
) if coinbase_nonce != '\0' * self.COINBASE_NONCE_LENGTH else gentx
header_hash = self.node.net.PARENT.BLOCKHASH_FUNC(
dash_data.block_header_type.pack(header))
pow_hash = self.node.net.PARENT.POW_FUNC(
dash_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.dashd,
self.node.dashd_work, self.node.net)
if pow_hash <= header['bits'].target:
print
print 'GOT BLOCK FROM MINER! Passing to dashd! %s%064x' % (
self.node.net.PARENT.BLOCK_EXPLORER_URL_PREFIX,
header_hash)
print
# New block found
self.node.factory.new_block.happened(header_hash)
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'] == dash_data.check_merkle_link(
dash_data.hash256(new_packed_gentx), merkle_link)
assert header['bits'] == ba['bits']
on_time = self.new_work_event.times == lp_count
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'),
dash_data.aux_pow_type.pack(
dict(
merkle_tx=dict(
tx=new_gentx,
block_hash=header_hash,
merkle_link=merkle_link,
),
merkle_link=dash_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 on_time 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(
dash_data.target_to_average_attempts(share.target),
not on_time, share.hash)
self.total_hashes += 1
if pow_hash > target:
print 'Worker %s submitted share with hash > target:' % (
user, )
print ' Hash: %56x' % (pow_hash, )
print ' Target: %56x' % (target, )
self.invalid_hashes += 1
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(
dash_data.target_to_average_attempts(target), not on_time,
user)
self.recent_shares_ts_work.append(
(time.time(),
dash_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=dash_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=dash_data.target_to_average_attempts(target),
pubkey_hash=pubkey_hash))
return on_time
return ba, got_response