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chatnetworking.py
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chatnetworking.py
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# -*- coding: utf-8 -*-
import socket
import threading
import rendezvous
defaulthost = '192.168.0.13'
port = 50000
encoding = 'utf-8'
class ChatConnect(threading.Thread):
def __init__(self, host, connected, display, lost):
threading.Thread.__init__(self)
self.host = host
self.connected = connected
self.display = display
self.lost = lost
self.msgLock = threading.Lock()
self.numMsg = 0
self.msg = []
def run(self):
self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.socket.settimeout(1)
try:
self.socket.connect((self.host, port))
except:
self.lost("Unable to connect to %s. Check the server." % self.host)
return
self.connected()
while True:
self.__send()
try:
data = self.socket.recv(4096)
except socket.timeout:
continue
except: # server was stopped or had some error
self.lost("Network Connection closed by the server...")
break
if len(data):
self.display(data)
else:
# no data when peer does a socket.close()
self.lost("Network Connection closed...")
break
# End loop of network send / recv data
self.socket.close()
def __send(self):
self.msgLock.acquire()
if self.numMsg > 0:
chunk = self.msg.pop(0)
chunk = chunk.encode(encoding)
self.socket.send(chunk)
self.numMsg -= 1
self.msgLock.release()
def send(self, msg):
self.msgLock.acquire()
self.msg.append(msg)
self.numMsg += 1
self.msgLock.release()