twampy.py 文件源码

def connectionSetup(self):
        log.info("CTRL.RX <<Server Greeting>>")
        data = self.receive()
        self.smode = struct.unpack('!I', data[12:16])[0]
        log.info("TWAMP modes supported: %d", self.smode)
        if self.smode & 1 == 0:
            log.critical('*** TWAMPY only supports unauthenticated mode(1)')

        log.info("CTRL.TX <<Setup Response>>")
        self.send(struct.pack('!I', 1) + zeros(160))

        log.info("CTRL.RX <<Server Start>>")
        data = self.receive()

        rval = ord(data[15])
        if rval != 0:
            # TWAMP setup request not accepted by server
            log.critical("*** ERROR CODE %d in <<Server Start>>", rval)

        self.nbrSessions = 0