def difficulty_test():
from block import Block, genesis
from db import clear_db
clear_db()
BLOCKCHAIN = []
first = True
wallet = Wallet()
wallet.gen_keypair()
set_mining_addr(wallet.address)
while True:
if (first == False):
log.info("creating new block")
pb = BLOCKCHAIN[-1]
diff = 1
if (len(BLOCKCHAIN) > 1):
diff = compute_difficulty(pb)
new_block = Block(height=pb.height + 1,
hash='',
diff_bits=diff,
timestamp=millis(),
transactions=[],
nonce=0,
version=100,
prev_hash=pb.hash)
log.info("Created block, mining. diff={}".format(
new_block.diff_bits))
new_block.mine(diff)
log.info("Mined block. hash={} time={} (sec) difficulty={}".format(
new_block.hash, (millis() - new_block.timestamp) / 1000,
new_block.diff_bits))
BLOCKCHAIN.append(new_block)
else:
log.info("creating genesis block")
diff = 1
new_block = genesis()
log.info("Created genesis block, mining")
new_block.mine(1)
log.info("Mined genesis block. hash={} time={}(sec) difficulty={}".
format(new_block.hash,
(millis() - new_block.timestamp) / 1000,
new_block.diff_bits))
BLOCKCHAIN.append(new_block)
first = False
new_block.save()
sleep(1.5) # to prevent diff adjust issues
def __init__(self):
self.chain = [genesis()]
'''
(c) 2020 Coinfection Project
This code is licensed under the GNU General Public License v3.0 (see LICENSE.txt for details)
'''
from db import set, get
from block import Block, genesis
TOP_BLOCK = None
read_block_height = get('height', 'coofchainstatus')
if read_block_height == None:
# save the genesis block
genesis = genesis()
print("No blocks found, saving geneis block to db")
genesis.save()
set('height', '0', 'coofchainstatus')
TOP_BLOCK = genesis
def get_block_height():
return TOP_BLOCK.height
def set_top_block(new):
TOP_BLOCK = new
set('height', str(new.height), 'coofchainstatus')
return True
def top_block():
return TOP_BLOCK
