1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
#!/usr/bin/env python
import logging
from tornado.ioloop import IOLoop
from tornado import gen
from tornado.iostream import StreamClosedError
from tornado.tcpserver import TCPServer
from tornado.options import options, define
define("port", default=9888, help="TCP port to listen on")
logger = logging.getLogger(__name__)
class EchoServer(TCPServer):
@gen.coroutine
def handle_stream(self, stream, address):
while True:
try:
data = yield stream.read_until(b"\n")
logger.info("Received bytes: %s", data)
if not data.endswith(b"\n"):
data = data + b"\n"
yield stream.write(data)
except StreamClosedError:
logger.warning("Lost client at host %s", address[0])
break
except Exception as e:
print(e)
if __name__ == "__main__":
options.parse_command_line()
server = EchoServer()
server.listen(options.port)
logger.info("Listening on TCP port %d", options.port)
IOLoop.current().start()
|
