[英]Automatically reconnect a Python Tornado Websocket Client Connection
[英]How to automatically close connection serverside after a certain time in Tornado Websocket
我有一个Tornado Websocket服务器,该服务器具有打开连接字典:
class WebSocketHandler(tornado.websocket.WebSocketHandler):
def open(self, *args):
self.id = self.generate_id()
self.stream.set_nodelay(True)
# ... DO STUFF ...
clients[self.id] = {"id": self.id, "time":datetime.now(), "object": self}
self.write_message("Connection SUCCESSFUL! Thanks for connecting! Your connection ID is: %d :)" % self.id)
print datetime.now()
print "New connection. ID: %d" % self.id
print "Total number of open connections: %d" % len(clients)
def on_close(self):
print datetime.now()
print "Closing connection %d." % self.id
if self.id in clients:
del clients[self.id]
print "Number of open connections: %d" % len(clients)
我想自动关闭所有超过一个小时的连接。 所以像这样:
for client in clients.values():
if (datetime.now() - client["time"])>timedelta(minutes=60):
client["object"].close()
但是我不知道应该把检查和关闭旧连接放在哪里。
请参考此答案以进一步说明
import tornado
import datetime
class WebSocketHandler(tornado.websocket.WebSocketHandler):
def open(self, *args):
self.id = self.generate_id()
self.stream.set_nodelay(True)
self.timeout = tornado.ioloop.IOLoop.current().add_timeout(
datetime.timedelta(minutes=60), self.explicit_close)
# ... DO STUFF ...
clients[self.id] = {"id": self.id, "time":datetime.now(), "object": self}
self.write_message("Connection SUCCESSFUL! Thanks for connecting! Your connection ID is: %d :)" % self.id)
print datetime.now()
print "New connection. ID: %d" % self.id
print "Total number of open connections: %d" % len(clients)
def on_close(self):
print datetime.now()
print "Closing connection %d." % self.id
if self.id in clients:
del clients[self.id]
print "Number of open connections: %d" % len(clients)
def explicit_close(self):
self.close() # you wont even have to iterate over the clients.
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