Python add_node Examples

Example #1

def set_network(ip_list, isPrivate=True):
    if isPrivate:
        node.remove_all_node()
        # 프라이빗 블록체인에서는 등록된 ip만 브로드캐스팅 할 수 있게함
        for ip in ip_list:
            node.add_node(Node(ip))
            #print(ip)
    else:
        start_public()

Example #2

def set_my_node():
    print("Set my node")

    my_node = Node(util.get_ip_address('en0'))
    pri_key, pub_key = key.get_key()

    if (pri_key == ''):
        print("Invalid Key Info...")
        return

    node.add_node(my_node)

Example #3

    def find_node_thread():
        # UDP 소켓 생성
        sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM,
                             socket.IPPROTO_UDP)

        # 소켓에 브로드캐스트 옵션 설정
        sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)

        # 포트 번호와 로컬 주소에 바인딩
        sock.bind(('', PING_PORT_NUMBER))

        # zmq라이브러리를 이용해 UDP 소켓을 폴링
        poller = zmq.Poller()
        poller.register(sock, zmq.POLLIN)

        # 실행 시 ping 전송
        ping_at = time.time()

        while is_running:
            # 타이머 설정
            timeout = ping_at - time.time()

            if timeout < 0:
                timeout = 0
            try:
                events = dict(poller.poll(1000 * timeout))
            except KeyboardInterrupt:
                print("interrupted")
                break

            # ping 으로부터 응답이 오는 경우 노드 추가
            if sock.fileno() in events:
                msg, addrinfo = sock.recvfrom(PING_MSG_SIZE)
                ip = addrinfo[0]

                print("ping received from " + ip)

                # 노드 리스트에 추가
                # 자기 자신은 제외시켜야 함 (추후)
                n = node.Node(ip)
                node.add_node(n)

            # 일정 주기 마다 브로드캐스트로 ping
            if time.time() >= ping_at:
                sock.sendto(b'!', 0, ("255.255.255.255", PING_PORT_NUMBER))
                ping_at = time.time() + PING_INTERVAL

Example #4

File: __init__.py Project: chumjikim/Fintech_mychain

    def find_node_thread():
        sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM,
                             socket.IPPROTO_UDP)
        sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
        sock.bind(('', PING_PORT_NUMBER))

        t = threading.Thread(target=find_node_thread)
        poller = zmq.Poller()
        poller.register(sock, zmq.POLLIN)

        ping_at = time.time()

        # is_running
        while True:
            timeout = ping_at - time.time()
            if timeout < 0:
                timeout = 0
            try:
                events = dict(poller.poll(1000 * timeout))
            except KeyboardInterrupt:
                print("interrupted")
                break

        if sock.fileno() in events:
            msg, addrinfo = sock.recvfrom(PING_MSG_SIZE)
            ip = addrinfo[0]
            n = node.Node(ip)
            if node.add_node(n):
                # print('Find ' + ip)
                log.write('Find ' + ip)

        if time.time() >= ping_at:
            print('Finding a node...')
            sock.sendto(b'!', 0, ("255.255.255.255", PING_PORT_NUMBER))
            ping_at = time.time() + PING_INTERVAL

        t.start()

Example #5

File: __init__.py Project: Souliticer/MyChainForKISA

def set_my_node():
	my_node = Node(util.get_ip_address('en0'))
	key.generate_key()
	log.write("Set my node")
	node.add_node(my_node)

Example #6

    if ch == '':
        menu_actions['main_menu']()
    else:
        try:
            menu_actions[ch]()
        except:
            print("Invalid selection")
            menu_actions['main_menu']()


menu_actions = {
    'main_menu': main_menu,
    '1': send_tx,
    '2': show_node_list,
    '3': show_transaction_list,
    '4': show_block_list,
    '0': exit,
}

import threading
from app.communicator import receiver

storage.init()
node.add_node(node.Node("192.168.40.18"))
node.add_node(node.Node("192.168.40.17"))
node.add_node(node.Node("192.168.40.6"))
# transaction.add_transaction(transaction.create_tx("","","aaa"))
listen_thread = threading.Thread(target=receiver.start, args=("LT", "192.168.40.18", 3399))
listen_thread.start()
main_menu()

Example #7

def set_my_node(set_my_node=True):
    if set_my_node:
        my_node = Node(my_ip_address.get_ip_address('en0'))
        node.add_node(my_node)
    log.write("Set my node")