How to use _check_paired_results_exist method in autotest

Best Python code snippet using autotest_python

agent_task.py

Source:agent_task.py

...262        Return the name of the pidfile this BaseAgentTask's process uses.  To be263        overridden if necessary.264        """265        return drone_manager.AUTOSERV_PID_FILE266    def _check_paired_results_exist(self):267        if not self._paired_with_monitor().has_process():268            metadata = {269                    '_type': 'scheduler_error',270                    'error': 'No paired results in task',271                    'task': str(self),272                    'pidfile_id': str(self._paired_with_monitor().pidfile_id)}273            autotest_stats.Counter('no_paired_results_in_task',274                                   metadata=metadata).increment()275            self.finished(False)276            return False277        return True278    def _create_monitor(self):279        assert not self.monitor280        self.monitor = pidfile_monitor.PidfileRunMonitor()281    def run(self):282        if not self._check_paired_results_exist():283            return284        self._create_monitor()285        self.monitor.run(286                self._command_line(), self._working_directory(),287                num_processes=self.num_processes,288                nice_level=AUTOSERV_NICE_LEVEL, log_file=self._log_file(),289                pidfile_name=self._pidfile_name(),290                paired_with_pidfile=self._paired_with_monitor().pidfile_id,291                username=self.owner_username,292                drone_hostnames_allowed=self.get_drone_hostnames_allowed())293    def get_drone_hostnames_allowed(294            self, restricted_subnets=utils.RESTRICTED_SUBNETS,295            enable_drone_in_subnet=ENABLE_DRONE_IN_RESTRICTED_SUBNET):296        filtered_drones = None297        has_unrestricted_host = False298        if (self.hostnames and restricted_subnets and enable_drone_in_subnet):299            for hostname in self.hostnames.values():300                subnet = utils.get_restricted_subnet(hostname,301                                                     restricted_subnets)302                # Return an empty set if the list of hosts exists both in303                # restricted and unrestricted subnet. No drone can work in such304                # case.305                if ((not subnet and filtered_drones is not None) or306                    (subnet and has_unrestricted_host)):307                    logging.error('The test has some DUT in restricted subnet, '308                                  'but some in unrestricted subnet. Therefore, '309                                  'no drone is available to run the test.')310                    return set()311                if not subnet:312                    has_unrestricted_host = True313                    continue314                server_ip_map=system_utils.DroneCache.get_drone_ip_map()315                filtered_drones_for_host = set(316                        utils.get_servers_in_same_subnet(317                                subnet[0], subnet[1],318                                server_ip_map=server_ip_map))319                logging.info('DUT %s is in restricted subnet, drone can only '320                             'be chosen from %s', hostname,321                             filtered_drones_for_host)322                if filtered_drones is None:323                    filtered_drones = filtered_drones_for_host324                else:325                    filtered_drones = set.intersection(326                            filtered_drones, filtered_drones_for_host)327                # If filtered_drones is an empty set, that means no drone is328                # allowed to run the task. This is different fron None, which329                # means all drones are allowed.330                if filtered_drones == set():331                    logging.error('DUT(s) is in restricted subnet, but no '332                                  'drone is available to run the test.')333                    return filtered_drones334        # If host is not in restricted subnet, use the unrestricted drones only.335        if (filtered_drones is None and restricted_subnets and336            enable_drone_in_subnet):337            filtered_drones = set(338                    system_utils.DroneCache.get_unrestricted_drones(339                            restricted_subnets=restricted_subnets))340        if not models.DroneSet.drone_sets_enabled():341            return filtered_drones342        hqes = models.HostQueueEntry.objects.filter(id__in=self.queue_entry_ids)343        if not hqes:344            # Only special tasks could be missing host queue entries345            assert isinstance(self, SpecialAgentTask)346            return self._user_or_global_default_drone_set(347                    self.task, self.task.requested_by)348        job_ids = hqes.values_list('job', flat=True).distinct()349        assert job_ids.count() == 1, ("BaseAgentTask's queue entries "350                                      "span multiple jobs")351        job = models.Job.objects.get(id=job_ids[0])352        drone_set = job.drone_set353        if not drone_set:354            return self._user_or_global_default_drone_set(job, job.user())355        if filtered_drones:356            return set.intersection(filtered_drones,357                                    drone_set.get_drone_hostnames())358        else:359            return drone_set.get_drone_hostnames()360    def _user_or_global_default_drone_set(self, obj_with_owner, user):361        """362        Returns the user's default drone set, if present.363        Otherwise, returns the global default drone set.364        """365        default_hostnames = models.DroneSet.get_default().get_drone_hostnames()366        if not user:367            logging.warning('%s had no owner; using default drone set',368                         obj_with_owner)369            return default_hostnames370        if not user.drone_set:371            logging.warning('User %s has no default drone set, using global '372                         'default', user.login)373            return default_hostnames374        return user.drone_set.get_drone_hostnames()375    def register_necessary_pidfiles(self):376        pidfile_id = self._drone_manager.get_pidfile_id_from(377                self._working_directory(), self._pidfile_name())378        self._drone_manager.register_pidfile(pidfile_id)379        paired_pidfile_id = self._paired_with_monitor().pidfile_id380        if paired_pidfile_id:381            self._drone_manager.register_pidfile(paired_pidfile_id)382    def recover(self):383        if not self._check_paired_results_exist():384            return385        self._create_monitor()386        self.monitor.attach_to_existing_process(387                self._working_directory(), pidfile_name=self._pidfile_name(),388                num_processes=self.num_processes)389        if not self.monitor.has_process():390            # no process to recover; wait to be started normally391            self.monitor = None392            return393        self.started = True394        logging.info('Recovering process %s for %s at %s',395                     self.monitor.get_process(), type(self).__name__,396                     self._working_directory())397    def _check_queue_entry_statuses(self, queue_entries, allowed_hqe_statuses,...

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