def start_node(node_name='Node', port=2231):
n = node.Node(port)
queue = multiprocessing.Queue(1)
queue.put(0)
lock = multiprocessing.Lock()
n.sync_with_other_nodes()
while True:
print_break()
print("get request type")
re_type, re_pkt = n.get_request_type(user_port)
(hexdump(re_pkt))
if 'read' == re_type:
#print("sr1 pkt from port")
re_pkt = n.sr1_pkt_from_storage_to_user(re_pkt, storage_port)
#print("send pkt to port")
n.send_new_header_hash_to_user(port, user_port)
elif 'write' == re_type:
broad_pkt = n.change_request_type(re_pkt, b"write", b"broadcast")
n.broadcast_to_all_nodes(broad_pkt.load)
#print("start child process in write mode")
p1 = multiprocessing.Process(target = listen_from_other_nodes, \
args = (n, port, queue, lock))
p1.start()
p2 = multiprocessing.Process(target = do_proof_work_job, \
args = (re_pkt.load[9:].decode(), n, port, queue, lock))
p2.start()
p1.join()
p2.join()
#print("pre header hash:", re_pkt.load[5:])
#re_pkt = n.gen_pkt_with_pre_header_hash(port, storage_port, re_pkt.load[5:].decode())
#time.sleep(1)
#n.send_new_header_hash_to_user(port, user_port)
#print(hexdump(re_pkt))
#n.send_pkt_to_storage(re_pkt, storage_port)
elif 'broadcast' == re_type:
#print("start child process in broadcast mode")
p1 = multiprocessing.Process(target = listen_from_other_nodes, \
args = (n, port, queue, lock))
p1.start()
p2 = multiprocessing.Process(target = do_proof_work_job, \
args = (re_pkt.load[9:].decode(), n, port, queue, lock))
p2.start()
p1.join()
p2.join()
elif 'sync' == re_type:
target_node_port = re_pkt.sport
#print("recv sync request, target port:", target_node_port)
n.sr1_pkt_from_storage_to_node(re_pkt, storage_port,
target_node_port)
elif 'exit' == re_type:
n.broadcast_to_all_nodes(re_pkt.load)
n.send_pkt_to_storage(re_pkt, storage_port)
break
print("You have start a user: {}[port:{}]".format(node_name, port))
def _onduty_mail(node_public_key, gte_height_2: int, height: int):
mail_text = "<tr><td width=" + str(20) + ">序号</td><td width=" + str(
100) + ">nodepublickey</td><td width=" + str(
100) + ">连续没有轮值区块高度范围</td></tr>"
mail_text = mail_text + "<tr><td>" + str(
0) + "</td><td>" + node_public_key + "</td><td>" + str(
gte_height_2) + "-" + str(height) + "</td></tr>"
return mail_text
if __name__ == '__main__':
arbiter_num = 36
n = node.Node()
node_public_key = n.node_public_key
''' connect to the database to get the latest height and total data '''
obj = db_onduty_info.OndutyMongoDBCont(n.mongo_host, n.mongo_port,
n.mongo_db)
onduty = obj.findOne_onduty_info()
# print('onduty : ', onduty)
height = onduty.get(interface.height)
onduty_count = obj.findOne_onduty_count()
# print('onduty_count : ', onduty_count)
''' 连续两次当值仲裁人不出块逻辑, 判断数据库数据是否大于24个 '''
if onduty_count >= arbiter_num * 2:
gte_height_1 = height - arbiter_num + 1