Method pg_start

test/framework.py:167–194

Enable the PG, wait till it is done, then clean up

(cls, trace=True, traceFilter=False)

    @classmethod
    def pg_start(cls, trace=True, traceFilter=False):
        """Enable the PG, wait till it is done, then clean up"""
        for intf, worker in cls._old_pcaps:
            intf.remove_old_pcap_file(intf.get_in_path(worker))
        cls._old_pcaps = []
        if trace:
            cls.vapi.cli("clear trace")
            cls.vapi.cli("trace add pg-input 1000" + (" filter" if traceFilter else ""))
        cls.vapi.cli("packet-generator enable")
        # PG, when starts, runs to completion -
        # so let's avoid a race condition,
        # and wait a little till it's done.
        # Then clean it up  - and then be gone.
        deadline = time.time() + 300
        while True:
            try:
                if cls.vapi.cli("show packet-generator").find("Yes") == -1:
                    break
            except vpp_papi.VPPIOError:
                cls.logger.debug("VPP API timeout during pg_start, retrying")
            cls.sleep(0.01)  # yield
            if time.time() > deadline:
                cls.logger.error("Timeout waiting for pg to stop")
                break
        for intf, worker in cls._pcaps:
            cls.vapi.cli("packet-generator delete %s" % intf.get_cap_name(worker))
        cls._old_pcaps = cls._pcaps
        cls._pcaps = []

    @classmethod
    def create_pg_interfaces_internal(