def add_block(self, transactions, fee=0): # change add "fee" 6.19
last_block = self.get_last_block()
prev_hash = last_block.get_header_hash()
height = last_block.block_header.height + 1
block_header = BlockHeader('', height, prev_hash)
# reward to wallets[0]
wallets = Wallets()
keys = list(wallets.wallets.keys())
w = wallets[keys[0]]
coin_base_tx = self.coin_base_tx(w.address, fee) # change 6.19
transactions.insert(0, coin_base_tx)
utxo_set = UTXOSet()
# txs = transactions # change 6.21
txs = utxo_set.clear_transactions(
transactions) # change clear transactions(add sort)
block = Block(block_header, txs)
block.mine(self)
block.set_header_hash()
self.db.create(block.block_header.hash, block.serialize())
last_hash = block.block_header.hash
self.set_last_hash(last_hash)
utxo_set.update(block)
def add_block(self, transactions=[], fee=0):
last_block = None
while not last_block:
last_block = self.get_last_block()
time.sleep(5)
prev_hash = last_block.get_header_hash()
height = last_block.block_header.height + 1
block_header = BlockHeader('', height, prev_hash)
f = open('wallet.dat', 'rb')
wallets = pickle.load(f)
keys = list(wallets.keys())
w = wallets[keys[0]]
coin_base_tx = self.coin_base_tx(w.address, fee)
if transactions:
transactions.insert(0, coin_base_tx)
else:
transactions = [coin_base_tx]
utxo_set = UTXOSet()
txs = utxo_set.clear_transactions(transactions)
block = Block(block_header, txs)
block.mine(self)
blo = None
while not blo:
blo = self.get_last_block()
time.sleep(5)
txs1 = blo._transactions
# if len(transactions) > 1:
# if txs1:
# if len(txs1) > 1:
# if txs1[1].txid == txs[1].txid:
# return
block.set_header_hash()
self.db.create(block.block_header.hash, block.serialize())
last_hash = block.block_header.hash
self.set_last_hash(last_hash)
utxo_set.update(block)
def main():
parser = new_parser()
args = parser.parse_args()
s = ServerProxy("http://localhost:9999")
if hasattr(args, 'height'):
block_data = s.print_chain(args.height)
print(block_data)
if hasattr(args, 'address'):
balance = s.get_balance(args.address)
print("%s balance is %d" % (args.address, balance))
if hasattr(args, 'createwallet'):
address = s.create_wallet()
print('Wallet address is %s' % address)
if hasattr(args, 'start'):
start()
if hasattr(args, 'printwallet'):
wallets = s.print_all_wallet()
print('Wallet are:')
for wallet in wallets:
print("\t%s" % wallet)
if hasattr(args, 'genesis_block'):
address = s.create_genesis_block()
print('Genesis Wallet is: %s' % address)
if hasattr(args, 'send_from') \
and hasattr(args, 'send_to') \
and hasattr(args, 'send_amount'):
s.send(args.send_from, args.send_to, args.send_amount) # change
if hasattr(args, 'start_mining'): # change
print("start mining...") # change
s.start_find() # change
print("after start_find") # 7.10
if hasattr(args, 'print_txpool'): # change
txs = s.print_txpool() # change
print(type(txs[0])) # dict
i = 0
for tx in txs: # change
i += 1
print("transaction: ", tx) # change
print("")
print(i)
if hasattr(args, 'sort_txpool'):
txs6, no = s.sort_txpool()
# for i in range(len(txs6)):
# txs6[i] = Transaction.deserialize(txs6[i])
# print("transaction: ", type(txs6[i]))
utxo_set = UTXOSet()
txs6 = utxo_set.clear_transactions(txs6)
print(txs6)
if hasattr(args, 'alive'):
chain_doc = []
bc1 = BlockChain()
last_blo = bc1.get_last_block()
last_height = last_blo.block_header.height
j = 0
m_total_payoff = -11
u_total_payoff = 11.33
users = {}
for i in range(0, last_height + 1):
j += 1
blo = bc1.get_block_by_height(i)
if blo:
txs = blo._transactions
for tx in txs:
if tx.ip:
u_total_payoff -= tx.amount
m_total_payoff += tx.amount
if tx.ip in users.keys():
users[tx.ip] += (1.33 - tx.amount - 0.05 * j)
else:
users[tx.ip] = (1.33 - tx.amount - 0.05 * j)
print(blo.serialize())
print("")
else:
print("problems in the docs")
break
print(j)
print("m_total_payoff ", m_total_payoff)
print("u_total_payoff ", u_total_payoff)
for key in users:
print("the user ", key, "'s pay off is ", users[key])