def compute_work():
t = self.node.bitcoind_work.value
bb = self.node.best_block_header.value
if bb is not None and bb['previous_block'] == t['previous_block'] and self.node.net.PARENT.POW_FUNC(bitcoin_data.block_header_type.pack(bb)) <= t['bits'].target:
print 'Skipping from block %x to block %x!' % (bb['previous_block'],
bitcoin_data.scrypt_jane(bitcoin_data.block_header_type.pack(bb)))
t = dict(
version=bb['version'],
previous_block=bitcoin_data.scrypt_jane(bitcoin_data.block_header_type.pack(bb)),
bits=bb['bits'], # not always true
coinbaseflags='',
height=t['height'] + 1,
time=bb['timestamp'] + 600, # better way?
transactions=[],
transaction_fees=[],
merkle_link=bitcoin_data.calculate_merkle_link([None], 0),
subsidy=self.node.net.PARENT.SUBSIDY_FUNC(self.node.bitcoind_work.value['height']),
last_update=self.node.bitcoind_work.value['last_update'],
)
self.current_work.set(t)
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
new_gentx = bitcoin_data.tx_type.unpack(new_packed_gentx) if coinbase_nonce != '\0'*self.COINBASE_NONCE_LENGTH else gentx
header_hash = bitcoin_data.scrypt_jane(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 = 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'),
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:
share = get_share(header, pack.IntType(32).unpack(coinbase_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(bitcoin_data.target_to_average_attempts(share.target), not on_time)
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))
return on_time
