def check_network_info(block_num, boundary, timeout):
if not utils.Zilliqa.is_pow_window():
logging.warning(f"The network is not in pow window")
return False
network_ds_block = utils.Zilliqa.cur_ds_block
if block_num < network_ds_block:
logging.warning(f"Got wrong block number: {block_num} < {network_ds_block}")
return False
if block_num > network_ds_block + 1:
logging.warning(f"Got wrong block number: {block_num} > {network_ds_block} + 1")
return False
difficulty = ethash.boundary_to_difficulty(boundary)
network_difficulty = [
utils.Zilliqa.shard_difficulty,
utils.Zilliqa.ds_difficulty
]
if difficulty not in network_difficulty:
logging.warning(f"Got wrong difficulty {difficulty}")
return False
if timeout > config["zilliqa"]["POW_WINDOW_IN_SECONDS"]:
logging.warning(f"Got wrong timeout {timeout}")
return False
return True
def current_work():
latest_work = pow.PowWork.get_latest_work()
block_num = 0
difficulty = 0
start_time = None
if latest_work:
block_num = latest_work.block_num
start_time = latest_work.start_time
difficulty = ethash.boundary_to_difficulty(
crypto.hex_str_to_bytes(latest_work.boundary))
now = datetime.utcnow()
secs_next_pow = pow.PowWork.calc_seconds_to_next_pow()
next_pow_time = now + timedelta(seconds=secs_next_pow)
return {
"block_num": block_num,
"difficulty": difficulty,
"utc_time": utils.iso_format(now),
"start_time": utils.iso_format(start_time),
"next_pow_time": utils.iso_format(next_pow_time),
"avg_hashrate": miner.HashRate.epoch_hashrate(block_num),
"avg_pow_fee": pow.PowWork.avg_pow_fee(block_num),
}
def check_network_info(block_num, boundary, timeout):
if not blockchain.Zilliqa.is_pow_window():
logging.warning(f"The network is not in pow window")
return False
network_ds_block = blockchain.Zilliqa.cur_ds_block
if block_num < network_ds_block:
logging.warning(
f"Got wrong block number: {block_num} < {network_ds_block}")
return False
if block_num > network_ds_block + 1:
logging.warning(
f"Got wrong block number: {block_num} > {network_ds_block} + 1"
)
return False
network_difficulty = [blockchain.Zilliqa.shard_difficulty]
if config.site_settings.allow_ds_pow:
network_difficulty.append(blockchain.Zilliqa.ds_difficulty)
# try divided difficulty
difficulty = ethash.boundary_to_difficulty_divided(
boundary,
n_divided=config["zilliqa"]["POW_BOUNDARY_N_DIVIDED"],
n_divided_start=config["zilliqa"]["POW_BOUNDARY_N_DIVIDED_START"])
if difficulty not in network_difficulty:
# try original difficulty
old_difficulty = ethash.boundary_to_difficulty(boundary)
if old_difficulty not in network_difficulty:
logging.warning(f"Got wrong difficulty {difficulty}")
return False
if timeout > config["zilliqa"]["POW_WINDOW_IN_SECONDS"]:
logging.warning(f"Got wrong timeout {timeout}")
return False
return True
def test_tools(self):
for i in range(256):
assert ethash.boundary_to_difficulty(ethash.difficulty_to_boundary(i)) == i