def compute(request):
state = current_work.value
user = worker_interface.get_username(request)
payout_script = get_payout_script_from_username(user)
if payout_script is None or random.uniform(0, 100) < args.worker_fee:
payout_script = my_script
if len(p2p_node.peers) == 0 and net.PERSIST:
raise jsonrpc.Error(-12345, u'p2pool is not connected to any peers')
if state['best_share_hash'] is None and net.PERSIST:
raise jsonrpc.Error(-12345, u'p2pool is downloading shares')
if time.time() > current_work2.value['last_update'] + 60:
raise jsonrpc.Error(-12345, u'lost contact with bitcoind')
previous_share = None if state['best_share_hash'] is None else tracker.shares[state['best_share_hash']]
subsidy = current_work2.value['subsidy']
share_info, generate_tx = p2pool_data.generate_transaction(
tracker=tracker,
share_data=dict(
previous_share_hash=state['best_share_hash'],
coinbase='' if state['aux_work'] is None else '\xfa\xbemm' + bitcoin_data.HashType().pack(state['aux_work']['hash'])[::-1] + struct.pack('<ii', 1, 0),
nonce=run_identifier + struct.pack('<Q', random.randrange(2**64)),
new_script=payout_script,
subsidy=subsidy,
donation=math.perfect_round(65535*args.donation_percentage/100),
stale_frac=(lambda shares, stales:
255 if shares == 0 else math.perfect_round(254*stales/shares)
)(*get_share_counts()),
),
block_target=state['target'],
desired_timestamp=int(time.time() - current_work2.value['clock_offset']),
net=net,
)
print 'New work for worker %s! Difficulty: %.06f Payout if block: %.6f %s Total block value: %.6f %s including %i transactions' % (
user,
bitcoin_data.target_to_difficulty(share_info['target']),
(sum(t['value'] for t in generate_tx['tx_outs'] if t['script'] == payout_script) - subsidy//200)*1e-8, net.BITCOIN_SYMBOL,
subsidy*1e-8, net.BITCOIN_SYMBOL,
len(current_work2.value['transactions']),
)
transactions = [generate_tx] + list(current_work2.value['transactions'])
merkle_root = bitcoin_data.merkle_hash(transactions)
merkle_root_to_transactions[merkle_root] = share_info, transactions, time.time()
return bitcoin_getwork.BlockAttempt(state['version'], state['previous_block'], merkle_root, current_work2.value['time'], state['target'], share_info['target']), state['best_share_hash']
def compute(state, payout_script):
if payout_script is None:
payout_script = my_script
if state['best_share_hash'] is None and args.net.PERSIST:
raise jsonrpc.Error(-12345, u'p2pool is downloading shares')
pre_extra_txs = [tx for tx in tx_pool.itervalues() if tx.is_good()]
pre_extra_txs = pre_extra_txs[:2**16 - 1] # merkle_branch limit
extra_txs = []
size = 0
for tx in pre_extra_txs:
this_size = len(bitcoin.data.tx_type.pack(tx.tx))
if size + this_size > 500000:
break
extra_txs.append(tx)
size += this_size
# XXX check sigops!
# XXX assuming generate_tx is smallish here..
generate_tx = p2pool.generate_transaction(
tracker=tracker,
previous_share_hash=state['best_share_hash'],
new_script=payout_script,
subsidy=(50*100000000 >> (state['height'] + 1)//210000) + sum(tx.value_in - tx.value_out for tx in extra_txs),
nonce=run_identifier + struct.pack('<Q', random.randrange(2**64)),
block_target=state['target'],
net=args.net,
)
print 'Generating! Difficulty: %.06f Payout if block: %.6f BTC' % (0xffff*2**208/p2pool.coinbase_type.unpack(generate_tx['tx_ins'][0]['script'])['share_data']['target'], generate_tx['tx_outs'][-1]['value']*1e-8)
#print 'Target: %x' % (p2pool.coinbase_type.unpack(generate_tx['tx_ins'][0]['script'])['share_data']['target'],)
#, have', shares.count(my_script) - 2, 'share(s) in the current chain. Fee:', sum(tx.value_in - tx.value_out for tx in extra_txs)/100000000
transactions = [generate_tx] + [tx.tx for tx in extra_txs]
merkle_root = bitcoin.data.merkle_hash(transactions)
merkle_root_to_transactions[merkle_root] = transactions # will stay for 1000 seconds
timestamp = int(time.time() - current_work2.value['clock_offset'])
if state['best_share_hash'] is not None:
timestamp2 = math.median((s.timestamp for s in itertools.islice(tracker.get_chain_to_root(state['best_share_hash']), 11)), use_float=False) + 1
if timestamp2 > timestamp:
print 'Toff', timestamp2 - timestamp
timestamp = timestamp2
target2 = p2pool.coinbase_type.unpack(generate_tx['tx_ins'][0]['script'])['share_data']['target']
times[p2pool.coinbase_type.unpack(generate_tx['tx_ins'][0]['script'])['share_data']['nonce']] = time.time()
#print 'SENT', 2**256//p2pool.coinbase_type.unpack(generate_tx['tx_ins'][0]['script'])['share_data']['target']
return bitcoin.getwork.BlockAttempt(state['version'], state['previous_block'], merkle_root, timestamp, state['target'], target2)
def compute(request):
state = current_work.value
user = worker_interface.get_username(request)
payout_script = get_payout_script_from_username(user)
if payout_script is None or random.uniform(0,
100) < args.worker_fee:
payout_script = my_script
if len(p2p_node.peers) == 0 and net.PERSIST:
raise jsonrpc.Error(-12345,
u'p2pool is not connected to any peers')
if state['best_share_hash'] is None and net.PERSIST:
raise jsonrpc.Error(-12345, u'p2pool is downloading shares')
if time.time() > current_work2.value['last_update'] + 60:
raise jsonrpc.Error(-12345, u'lost contact with bitcoind')
previous_share = None if state[
'best_share_hash'] is None else tracker.shares[
state['best_share_hash']]
subsidy = current_work2.value['subsidy']
share_info, generate_tx = p2pool_data.generate_transaction(
tracker=tracker,
share_data=dict(
previous_share_hash=state['best_share_hash'],
coinbase='' if state['aux_work'] is None else
'\xfa\xbemm' + bitcoin_data.HashType().pack(
state['aux_work']['hash'])[::-1] +
struct.pack('<ii', 1, 0),
nonce=run_identifier +
struct.pack('<Q', random.randrange(2**64)),
new_script=payout_script,
subsidy=subsidy,
donation=math.perfect_round(
65535 * args.donation_percentage / 100),
stale_frac=(lambda shares, stales: 255 if shares == 0 else
math.perfect_round(254 * stales / shares))(
*get_share_counts()),
),
block_target=state['target'],
desired_timestamp=int(time.time() -
current_work2.value['clock_offset']),
net=net,
)
print 'New work for worker %s! Difficulty: %.06f Payout if block: %.6f %s Total block value: %.6f %s including %i transactions' % (
user,
bitcoin_data.target_to_difficulty(share_info['target']),
(sum(t['value'] for t in generate_tx['tx_outs']
if t['script'] == payout_script) - subsidy // 200) * 1e-8,
net.BITCOIN_SYMBOL,
subsidy * 1e-8,
net.BITCOIN_SYMBOL,
len(current_work2.value['transactions']),
)
transactions = [generate_tx] + list(
current_work2.value['transactions'])
merkle_root = bitcoin_data.merkle_hash(transactions)
merkle_root_to_transactions[
merkle_root] = share_info, transactions, time.time()
return bitcoin_getwork.BlockAttempt(
state['version'], state['previous_block'], merkle_root,
current_work2.value['time'], state['target'],
share_info['target']), state['best_share_hash']
