def __init__(self, port, type, params={}):
super(QkConnect, self).__init__(type, params)
self._hostname = "localhost"
self._port = port
self._json_parser = JsonParser()
self._json_parser.set_callback("parsed", self._handle_json)
self._client = None
self._thread_listener = None
self._alive = False
self._event = threading.Event()
self._process = None
self._process_thread = None
self._event.clear()
class QkConnect(Conn):
_nextID = 0
_next_port = 1238
def __init__(self, port, type, params={}):
super(QkConnect, self).__init__(type, params)
self._hostname = "localhost"
self._port = port
self._json_parser = JsonParser()
self._json_parser.set_callback("parsed", self._handle_json)
self._client = None
self._thread_listener = None
self._alive = False
self._event = threading.Event()
self._process = None
self._process_thread = None
self._event.clear()
def __del__(self):
print "Deleting QkConnect %d" % self._id
def __repr__(self):
id_hex = hex(self._id)[2:0].zfill(4)
return "%s %s %s" % (id_hex, self._type, self._params)
def run(self):
self._event.clear()
qkconnect_exe = path.normpath(QKCONNECT_EXE)
cmd = [qkconnect_exe, self._hostname, "%d" % self._port, self._type, "--verbose"]
self.log.debug("%s CMD: %s" % (self.__class__.__name__, cmd))
self._process = subprocess.Popen(
cmd,
stdin=_DEVNULL,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
bufsize=1
)
self._process_thread = threading.Thread(target=self._process_listener, args=[self._process.stdout])
self._process_thread.setDaemon(True)
self._process_thread.start()
if self._event.wait(3.0) is False:
self._error("Failed to create QkConnect")
return False
QkConnect._nextID += 1
self._connect()
self._set_state(Conn.StateRunning)
return True
def _connect(self):
self._client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self._client.connect((self._hostname, self._port))
self._thread_listener = threading.Thread(target=self._listener)
self._thread_listener.setDaemon(True)
self._alive = True
self._thread_listener.start()
def stop(self):
self._alive = False
self._client.close()
self._thread_listener.join()
self._process.terminate()
self._set_state(Conn.StateStopped)
def _handle_json(self, json_str):
json_data = json.loads(json_str)
json_keys = json_data.keys()
#TODO add timestamps to packets
if "pkt" in json_keys:
json_data.update({
"conn": {
"id": self._id
}
})
if self._callbacks["packet_received"] is not None:
self._callbacks["packet_received"](json_data)
else:
self._error("Unknown JSON format: %s" % json_str)
def _process_listener(self, stdout):
while self._process.poll() is None:
for line in iter(stdout.readline, b""):
nline = line.rstrip("\r\n")
if "ready" in nline:
self.log.debug("QkConnect is READY")
self._event.set()
self.log.debug("STDOUT %s %s: %s" % (self, self._port, nline))
def _listener(self):
while self._alive:
input,output,err = select.select([self._client], [], [])
for rd in input:
if self._alive is True:
data = rd.recv(256)
self._json_parser.parse_data(data)
def send_packet(self, pkt):
pkt_json_str = json.dumps(pkt)
self._client.send(pkt_json_str)
