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import SocketServer
from operationscore.Input import *
"""
A rough sketch about how a TCP socket server receives data from the phone (or other stuff).
Some corrections are probably needed from Russell.
Looks good to me -- not really the way I envisioned it, but since the server
we're using has a built in loop. When we call the reponse method to pass the
data up the pipe, we should use the sensingLoop so that everything stays
thread-safe.
"""
class TCPInput(Input.Input):
class InputTCPHandler(SocketServer.BaseRequestHandler):
def handle(self):
# get data from the TCP socket connected to the client
self.data = self.request.recv(1024).strip()
pydict = json.loads(self.data) # decode and add to queue
self.responseQueue.append(pydict)
"""
do something to the dict
"""
self.request.send("yes") # send back confirmation.
def inputInit(self):
# initialize
self.host = "localhost"
self.port = 9999
self.responseQueue = []
# start server
self.server = SocketServer.TCPServer((self.host, self.port), InputTCPHandler)
self.server.responseQueue = self.responseQueue
self.server.serve_forever() # server keeps running till Ctrl+C or self.server.shutdown() is called.
def sensingLoop(self):
# loop action handled through TCPHandler?
# if check says to shut down the server, shut it.
if self.doShutDown():
self.server.shutdown()
else:
for event in self.responseQueue:
self.respond(event)
self.responseQueue = []
def doShutDown(self):
# do some checks to see if server should be shut down
return False;
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