def connect_callback(self, future):
if not future.done():
return
if future.exception() is None:
self.stream = future.result()
self.is_connected = True
logger.debug('client connected by callback')
try:
self.stream.read_until(b"\n", callback=self.parse_response)
except Exception as ex:
logger.debug(ex.message)
self.ioloop.add_periodic(self.send_all)
self.ioloop.add_periodic(self.callback)
self.ioloop.add_periodic(self.subscribe)
if self.connect_future._callbacks is None:
self.connect_future._callbacks = []
self.connect_future.set_result(True)
else:
print future.exception()
if self.connect_retry_time > 0:
self.connect_retry_time -= 1
self.ioloop.add_future(TCPClient().connect(self.ip, self.port),
self.connect_callback)
self.set_timout(timeout=3)
else:
self.connect_future.set_result(False)
def connect_callback(future):
if not self.client.is_connected:
logger.debug('connect failed and retry')
self.client = None
self.start_client()
else:
self.client.add_message(
Version([
Parameter().ELECTRUM_VERSION,
Parameter().PROTOCOL_VERSION
]))
def get_server(self):
ip, port, _ = self.deserialize_server(self.pick_random_server())
port = int(port)
logger.debug('begin to connect to %s %d' % (ip, port))
try:
l = socket.getaddrinfo(ip, port, socket.AF_UNSPEC,
socket.SOCK_STREAM)
ip, port = l[0][-1]
except socket.gaierror:
logger.debug('cannot resolve hostname')
return ip, port
def run(self):
logger.debug('ioloop starting')
def add_features():
if not self._futures:
pass
else:
need_add = self._futures[:]
self._futures = []
for each in need_add:
self.ioloop.add_future(each[0], each[1])
PeriodicCallback(add_features, self.loop_interval, self.ioloop).start()
self.ioloop.start()
def connect(self):
try:
self.stream = yield TCPClient().connect(self.ip, self.port)
self.is_connected = True
self.stream.read_until(b"\n", callback=self.parse_response)
logger.debug('client connected')
self.ioloop.add_periodic(self.send_all)
self.ioloop.add_periodic(self.callback)
self.ioloop.add_periodic(self.subscribe)
except StreamClosedError as ex:
self.is_connected = False
except Exception as ex:
print ex
self.is_connected = False