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import sys, os
LOCALDIR = __file__
LOCALDIR = os.path.abspath(os.path.dirname(LOCALDIR))
sys.path.insert(0, os.path.dirname(LOCALDIR))
from common.msgstruct import *
from socket import error
MMSG_INFO = 'I'
MMSG_START = '+'
MMSG_STOP = '-'
MMSG_LIST = 'L'
MMSG_ROUTE = 'R'
MMSG_TRACEBACK= 'T'
MMSG_UDP_ADDR = 'U'
RMSG_WAKEUP = 'w'
RMSG_PING = 'p'
RMSG_PONG = 'o'
RMSG_SYNC = 'y'
RMSG_CONNECT = 'c'
RMSG_LIST = 'l'
RMSG_UDP_ADDR = 'u'
RMSG_UDP_CONN = 'd'
RMSG_NO_HOST = '?'
def encodedict(dict):
data = []
for key, value in dict.items():
data.append(message('#', key, value))
return ''.join(data)
def encodelist(list):
return message('[', *list)
def decodedict(buffer):
result = {}
while 1:
msg, buffer = decodemessage(buffer)
if msg is None or len(msg) < 3 or msg[0] != '#':
break
result[msg[1]] = msg[2]
return result
def decodelist(buffer):
msg, buffer = decodemessage(buffer)
assert msg[0] == '['
return list(msg[1:])
class MessageSocket:
def __init__(self, s):
self.s = s
self.buffer = ""
def receive(self):
try:
data = self.s.recv(2048)
except error:
data = ''
if not data:
self.disconnect()
return
self.buffer += data
while 1:
msg, self.buffer = decodemessage(self.buffer)
if msg is None:
break
if msg[0] not in self.MESSAGES:
print >> sys.stderr, 'unknown message %r' % (msg[0],)
else:
fn = self.MESSAGES[msg[0]]
fn(self, *msg[1:])
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