def __init__(self, version, prev_block_hash, merkle_root_hash, time, bits,
nonce):
if not isinstance(prev_block_hash, Hash):
raise TypeError('prev_block_hash must be a Hash object')
if not isinstance(merkle_root_hash, Hash):
raise TypeError('merkle_root hash must be a Hash object')
self.version = version
self.prev_block_hash = prev_block_hash
self.merkle_root_hash = merkle_root_hash
self.time = time
self.bits = bits
self.nonce = nonce
self.target = bits_to_target(bits)
def __init__(self, version, prev_block_hash, merkle_root_hash,
time, bits, nonce):
if not isinstance(prev_block_hash, Hash):
raise TypeError('prev_block_hash must be a Hash object')
if not isinstance(merkle_root_hash, Hash):
raise TypeError('merkle_root hash must be a Hash object')
self.version = version
self.prev_block_hash = prev_block_hash
self.merkle_root_hash = merkle_root_hash
self.time = time
self.bits = bits
self.nonce = nonce
self.target = bits_to_target(bits)
def mine_work(work_msg, enonce1, enonce2_size):
""" Mine the work using a CPU to find a valid solution.
Loop until the CPU finds a valid solution of the given work.
Todo:
Slow down the click echo when on a 21BC.
Args:
work_msg (WorkNotification): the work given by the pool API
enonce1 (bytes): extra nonce required to make the coinbase transaction
enonce2_size (int): size of the extra nonce 2 in bytes
"""
pool_target = utils.bits_to_target(work_msg.bits_pool)
for enonce2_num in range(0, 2**(enonce2_size * 8)):
enonce2 = enonce2_num.to_bytes(enonce2_size, byteorder="big")
cb_txn, _ = Transaction.from_bytes(work_msg.coinb1 + enonce1 +
enonce2 + work_msg.coinb2)
cb = CompactBlock(
work_msg.height,
work_msg.version,
Hash(work_msg.prev_block_hash),
work_msg.ntime,
work_msg.nbits, # lower difficulty work for testing
work_msg.merkle_edge,
cb_txn)
row_counter = 0
for nonce in range(0xffffffff):
if nonce % 6e3 == 0:
logger.info(click.style(u'█', fg='green'), nl=False)
row_counter += 1
if row_counter > 40:
row_counter = 0
logger.info("")
cb.block_header.nonce = nonce
h = cb.block_header.hash.to_int('little')
if h < pool_target:
share = Share(enonce2=enonce2,
nonce=nonce,
work_id=work_msg.work_id,
otime=int(time.time()))
# adds a new line at the end of progress bar
logger.info("")
return share
logger.info("Exhausted enonce1 space. Changing enonce2")
def mine_work(work_msg, enonce1, enonce2_size):
""" Mine the work using a CPU to find a valid solution.
Loop until the CPU finds a valid solution of the given work.
Todo:
Slow down the click echo when on a 21BC.
Args:
work_msg (WorkNotification): the work given by the pool API
enonce1 (bytes): extra nonce required to make the coinbase transaction
enonce2_size (int): size of the extra nonce 2 in bytes
"""
pool_target = utils.bits_to_target(work_msg.bits_pool)
for enonce2_num in range(0, 2 ** (enonce2_size * 8)):
enonce2 = enonce2_num.to_bytes(enonce2_size, byteorder="big")
cb_txn, _ = Transaction.from_bytes(
work_msg.coinb1 + enonce1 + enonce2 + work_msg.coinb2)
cb = CompactBlock(work_msg.height,
work_msg.version,
Hash(work_msg.prev_block_hash),
work_msg.ntime,
work_msg.nbits, # lower difficulty work for testing
work_msg.merkle_edge,
cb_txn)
row_counter = 0
for nonce in range(0xffffffff):
if nonce % 6e3 == 0:
logger.info(click.style(u'█', fg='green'), nl=False)
row_counter += 1
if row_counter > 40:
row_counter = 0
logger.info("")
cb.block_header.nonce = nonce
h = cb.block_header.hash.to_int('little')
if h < pool_target:
share = Share(
enonce2=enonce2,
nonce=nonce,
work_id=work_msg.work_id,
otime=int(time.time()))
# adds a new line at the end of progress bar
logger.info("")
return share
logger.info("Exhausted enonce1 space. Changing enonce2")
