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BroadCast.py
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BroadCast.py
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#!/usr/bin/python
#-*- coding: utf-8 -*-
#raw BoardCast class
from MTCP import MTCP
from PIPE import PIPE
import threading
class BroadCast():
def __init__(self):
self.output_pipe = PIPE()
self.signal_pipe = PIPE()
self.mtcp = MTCP(self.output_pipe, self.signal_pipe)
self.socks = {} #key=addr, value=socket
self.input_pipes = {} #key=addr, value=input_pipes
self.sending_lock = threading.Lock()
def add_addr(self, addr, sock):
if addr in self.socks:
#print addr, "already in the socket list"
return None# error
self.socks[addr] = sock
input_pipe = PIPE()
self.input_pipes[addr] = input_pipe
if (sock == None):
return None
self.mtcp.new_connect(sock, addr, input_pipe)
def remove_addr(self, addr):
#This will send the socket.close()
if addr not in self.socks:
#print addr, "not in the socket list"
return False
sock = self.socks[addr]
input_pipe = self.input_pipes[addr]
sock.close()
input_pipe.close()
self.mtcp.close(addr)
self.socks[addr] = None
self.input_pipes[addr] = None
del self.socks[addr]
del self.input_pipes[addr]
return True
def get_addrs(self):
return self.socks.keys()
def get_sock(self, addr):
if addr not in self.socks:
return None
return self.socks[addr]
def get_pipe(self, addr):
if addr not in self.input_pipes:
return None
return self.input_pipes[addr]
def read(self):
return self.output_pipe.read()
def send(self, addr, message): #return the input_pipe
self.sending_lock.acquire()
if self.socks[addr] == None:
self.output_pipe.write(message)
self.sending_lock.release()
return self.output_pipe
if addr not in self.input_pipes:
#print addr, "not in input_pipe"
self.sending_lock.release()
return None
input_pipe = self.input_pipes[addr]
input_pipe.write(message)
self.sending_lock.release()
return input_pipe
def sendall(self,message):
return self.broadcast(message)
def broadcast(self, message): #return how many message has been sent
self.sending_lock.acquire()
#print 'start to broadcast'
for addr in self.input_pipes.keys():
#print 'pipe selection'
pipe = self.input_pipes[addr]
#print 'end of pipe selection'
if (self.socks[addr] == None):
#print 'write to locol'
self.output_pipe.write(message)
#print 'write locol succ'
else:
try:
#print 'pipe write'
pipe.write(message)
#print 'pipe write succ'
except:
self.sending_lock.release()
self.remove_addr(addr)
self.sending_lock.release()
#print 'end of broadcast'
return len(self.input_pipes)
def get_signal_message(self):
return self.signal_pipe.read()
if __name__ == "__main__":
import socket
import sys
from threading import Thread
import time
import random
class Ticker(Thread):
def __init__(self, b):
Thread.__init__(self)
self.b = b
def run(self):
count = 0
while True:
self.b.broadcast("GBCAST" + str(count))
count += 1
time.sleep(1)
class func_thread(Thread):
def __init__(self, func):
Thread.__init__(self)
self.func = func
def run(self):
while True:
print self.func()
class func_thread2(Thread):
def __init__(self, func, argv1, argv2):
Thread.__init__(self)
self.func = func
self.argv1 = argv1
self.argv2 = argv2
def run(self):
print self.func(self.argv1, self.argv2)
local_test_addr = ("localhost", 12222)
if sys.argv[1] == "server":
def delay_remove(bcast, addr):
time.sleep(10)
print 'remove addr', addr
print bcast.remove_addr(addr)
print bcast.get_addrs()
bcast = BroadCast()
f_t_signal = func_thread(bcast.get_signal_message)
f_t_read = func_thread(bcast.read)
f_t_signal.setDaemon(True)
f_t_read.setDaemon(True)
f_t_signal.start()
f_t_read.start()
ticker = Ticker(bcast)
ticker.setDaemon(True)
ticker.start()
s = socket.socket()
s.bind(local_test_addr)
s.listen(10)
test_flag = True
while True:
sock, addr = s.accept()
bcast.add_addr(addr, sock)
if test_flag == True:
f_t_delay = func_thread2(delay_remove, bcast, addr)
f_t_delay.setDaemon(True)
f_t_delay.start()
#test_flag = False
print bcast.get_addrs()
if sys.argv[1] == "client":
bcast = BroadCast()
s = socket.socket()
s.connect(local_test_addr)
bcast.add_addr(("1.2.3.4", 1234), s)
while True:
print bcast.read()
if sys.argv[1] == "client2":
s = socket.socket()
s.connect(local_test_addr)
for i in range(10):
print s.recv(1500)
s.close()
if sys.argv[1] == "client3":
s = socket.socket()
s.connect(local_test_addr)
bcast = BroadCast()
fake_addr = ("1.2.3.4", 1234)
bcast.add_addr(fake_addr, s)
for i in range(10):
bcast.send(fake_addr,str(i))
time.sleep(1)