KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use _get_pidfile_timeout_secs method in autotest

Best Python code snippet using autotest_python

pidfile_monitor.py

Source:pidfile_monitor.py

...13try:14    from chromite.lib import metrics15except ImportError:16    metrics = utils.metrics_mock17def _get_pidfile_timeout_secs():18    """@returns How long to wait for autoserv to write pidfile."""19    pidfile_timeout_mins = global_config.global_config.get_config_value(20            scheduler_config.CONFIG_SECTION, 'pidfile_timeout_mins', type=int)21    return pidfile_timeout_mins * 6022class PidfileRunMonitor(object):23    """24    Client must call either run() to start a new process or25    attach_to_existing_process().26    """27    class _PidfileException(Exception):28        """29        Raised when there's some unexpected behavior with the pid file, but only30        used internally (never allowed to escape this class).31        """32    def __init__(self):33        self._drone_manager = drone_manager.instance()34        self.lost_process = False35        self._start_time = None36        self.pidfile_id = None37        self._killed = False38        self._state = drone_manager.PidfileContents()39    def _add_nice_command(self, command, nice_level):40        if not nice_level:41            return command42        return ['nice', '-n', str(nice_level)] + command43    def _set_start_time(self):44        self._start_time = time.time()45    def run(self, command, working_directory, num_processes, nice_level=None,46            log_file=None, pidfile_name=None, paired_with_pidfile=None,47            username=None, drone_hostnames_allowed=None):48        assert command is not None49        if nice_level is not None:50            command = ['nice', '-n', str(nice_level)] + command51        self._set_start_time()52        self.pidfile_id = self._drone_manager.execute_command(53            command, working_directory, pidfile_name=pidfile_name,54            num_processes=num_processes, log_file=log_file,55            paired_with_pidfile=paired_with_pidfile, username=username,56            drone_hostnames_allowed=drone_hostnames_allowed)57    def attach_to_existing_process(self, execution_path,58                                   pidfile_name=drone_manager.AUTOSERV_PID_FILE,59                                   num_processes=None):60        self._set_start_time()61        self.pidfile_id = self._drone_manager.get_pidfile_id_from(62            execution_path, pidfile_name=pidfile_name)63        if num_processes is not None:64            self._drone_manager.declare_process_count(self.pidfile_id, num_processes)65    def kill(self):66        if self.has_process():67            self._drone_manager.kill_process(self.get_process())68            self._killed = True69    def has_process(self):70        self._get_pidfile_info()71        return self._state.process is not None72    def get_process(self):73        self._get_pidfile_info()74        assert self._state.process is not None75        return self._state.process76    def _read_pidfile(self, use_second_read=False):77        assert self.pidfile_id is not None, (78            'You must call run() or attach_to_existing_process()')79        contents = self._drone_manager.get_pidfile_contents(80            self.pidfile_id, use_second_read=use_second_read)81        if contents.is_invalid():82            self._state = drone_manager.PidfileContents()83            raise self._PidfileException(contents)84        self._state = contents85    def _handle_pidfile_error(self, error, message=''):86        self.on_lost_process(self._state.process)87    def _get_pidfile_info_helper(self):88        if self.lost_process:89            return90        self._read_pidfile()91        if self._state.process is None:92            self._handle_no_process()93            return94        if self._state.exit_status is None:95            # double check whether or not autoserv is running96            if self._drone_manager.is_process_running(self._state.process):97                return98            # pid but no running process - maybe process *just* exited99            self._read_pidfile(use_second_read=True)100            if self._state.exit_status is None:101                # autoserv exited without writing an exit code102                # to the pidfile103                self._handle_pidfile_error(104                    'autoserv died without writing exit code')105    def _get_pidfile_info(self):106        """\107        After completion, self._state will contain:108         pid=None, exit_status=None if autoserv has not yet run109         pid!=None, exit_status=None if autoserv is running110         pid!=None, exit_status!=None if autoserv has completed111        """112        try:113            self._get_pidfile_info_helper()114        except self._PidfileException, exc:115            self._handle_pidfile_error('Pidfile error', traceback.format_exc())116    def _handle_no_process(self):117        """\118        Called when no pidfile is found or no pid is in the pidfile.119        """120        if time.time() - self._start_time > _get_pidfile_timeout_secs():121            # If we aborted the process, and we find that it has exited without122            # writing a pidfile, then it's because we killed it, and thus this123            # isn't a surprising situation.124            if not self._killed:125                metrics.Counter('chromeos/autotest/errors/scheduler/no_pidfile'126                                ).increment()127            else:128                logging.warning("%s didn't exit after SIGTERM", self.pidfile_id)129            self.on_lost_process()130    def on_lost_process(self, process=None):131        """\132        Called when autoserv has exited without writing an exit status,133        or we've timed out waiting for autoserv to write a pid to the134        pidfile.  In either case, we just return failure and the caller...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.