import asyncore
class AdvancedDispatcher(asyncore.dispatcher):
_buf_len = 131072
def __init__(self, sock):
asyncore.dispatcher.__init__(self, sock)
self.read_buf = ""
self.write_buf = ""
self.state = "init"
def slice_read_buf(self, length=0):
self.read_buf = self.read_buf[length:]
def slice_write_buf(self, length=0):
self.write_buf = self.read_buf[length:]
def read_buf_sufficient(self, length=0):
if len(self.read_buf) < length:
return False
else:
return True
def process(self):
if len(self.read_buf) == 0:
return
while True:
try:
if getattr(self, "state_" + str(self.state))() is False:
break
except AttributeError:
# missing state
raise
def set_state(self, state, length):
self.slice_read_buf(length)
self.state = state
def writable(self):
return len(self.write_buf) > 0
def readable(self):
return len(self.read_buf) < AdvancedDispatcher._buf_len
def handle_read(self):
self.read_buf += self.recv(AdvancedDispatcher._buf_len)
self.process()
def handle_write(self):
written = self.send(self.write_buf)
self.slice_write_buf(written)
# self.process()
