import socket
import time
from eventhandler import EventHandler, event_loop
class UDPServer(EventHandler):
def __init__(self, address):
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.sock.bind(address)
def fileno(self):
return self.sock.fileno()
def wants_to_receive(self):
return True
class UDPTimeServer(UDPServer):
def handle_receive(self):
msg, addr = self.sock.recvfrom(1)
self.sock.sendto(time.ctime().encode('ascii'), addr)
class UDPEchoServer(UDPServer):
def handle_receive(self):
msg, addr = self.sock.recvfrom(8192)
self.sock.sendto(msg, addr)
if __name__ == '__main__':
handlers = [ UDPTimeServer(('',14000)), UDPEchoServer(('',15000)) ]
event_loop(handlers)
else:
return fib(n - 1) + fib(n - 2)
class UDPServer(EventHandler):
def __init__(self, address):
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.sock.bind(address)
def fileno(self):
return self.sock.fileno()
def wants_to_receive(self):
return True
class UDPFibServer(UDPServer):
def handle_receive(self):
msg, addr = self.sock.recvfrom(128)
n = int(msg)
pool.run(fib, (n,), callback=lambda r: self.respond(r, addr))
def respond(self, result, addr):
self.sock.sendto(str(result).encode('ascii'), addr)
if __name__ == '__main__':
pool = ThreadPoolHandler(16)
handlers = [pool, UDPFibServer(('', 16000))]
event_loop(handlers)