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

How to use IOC method in fMBT

Best Python code snippet using fMBT_python

ioc_control.py

Source:ioc_control.py

1# This file is part of the ISIS IBEX application.2# Copyright (C) 2012-2016 Science & Technology Facilities Council.3# All rights reserved.4#5# This program is distributed in the hope that it will be useful.6# This program and the accompanying materials are made available under the7# terms of the Eclipse Public License v1.0 which accompanies this distribution.8# EXCEPT AS EXPRESSLY SET FORTH IN THE ECLIPSE PUBLIC LICENSE V1.0, THE PROGRAM9# AND ACCOMPANYING MATERIALS ARE PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES10# OR CONDITIONS OF ANY KIND.  See the Eclipse Public License v1.0 for more details.11#12# You should have received a copy of the Eclipse Public License v1.013# along with this program; if not, you can obtain a copy from14# https://www.eclipse.org/org/documents/epl-v10.php or15# http://opensource.org/licenses/eclipse-1.0.php16from time import sleep, time17from typing import List18from BlockServer.epics.procserv_utils import ProcServWrapper19from BlockServer.alarm.load_alarm_config import AlarmConfigLoader20from server_common.utilities import print_and_log21from server_common.constants import IOCS_NOT_TO_STOP22class IocControl:23    """A class for starting, stopping and restarting IOCs"""24    def __init__(self, prefix):25        """Constructor.26        Args:27            prefix (string): The PV prefix for the instrument28        """29        self._proc = ProcServWrapper(prefix)30    def start_ioc(self, ioc: str, restart_alarm_server: bool = True):31        """Start an IOC.32        Args:33            ioc (string): The name of the IOC34            restart_alarm_server (bool): whether to also restart the alarm server35        """36        try:37            self._proc.start_ioc(ioc)38            if ioc != "ALARM" and restart_alarm_server:39                AlarmConfigLoader.restart_alarm_server(self)40        except Exception as err:41            print_and_log(f"Could not start IOC {ioc}: {err}", "MAJOR")42    def restart_ioc(self, ioc: str, force: bool = False, restart_alarm_server: bool = True):43        """Restart an IOC.44        Note: restarting an IOC automatically sets the IOC to auto-restart, so it is neccessary to reapply the45        previous auto-restart setting46        Args:47            ioc (string): The name of the IOC48            force (bool): Force it to restart even if it is an IOC not to stop49            restart_alarm_server (bool): whether to also restart the alarm server50        """51        # Check it is okay to stop it52        if not force and ioc.startswith(IOCS_NOT_TO_STOP):53            return54        try:55            self._proc.restart_ioc(ioc)56            if ioc != "ALARM" and restart_alarm_server:57                AlarmConfigLoader.restart_alarm_server(self)58        except Exception as err:59            print_and_log(f"Could not restart IOC {ioc}: {err}", "MAJOR")60    def stop_ioc(self, ioc: str, force: bool = False):61        """Stop an IOC.62        Args:63            ioc (string): The name of the IOC64            force (bool): Force it to stop even if it is an IOC not to stop65        """66        # Check it is okay to stop it67        if not force and ioc.startswith(IOCS_NOT_TO_STOP):68            return69        try:70            self._proc.stop_ioc(ioc)71            if ioc != "ALARM":72                AlarmConfigLoader.restart_alarm_server(self)73        except Exception as err:74            print_and_log(f"Could not stop IOC {ioc}: {err}", "MAJOR")75    def get_ioc_status(self, ioc: str):76        """Get the running status of an IOC.77        Args:78            ioc (string): The name of the IOC79        Returns:80            string : The status of the IOC (RUNNING or SHUTDOWN)81        """82        return self._proc.get_ioc_status(ioc)83    def ioc_restart_pending(self, ioc: str):84        """Tests if the IOC has a pending restart85        Args:86            ioc (string): The name of the IOC87        Returns:88            bool : Whether a restart is pending89        """90        return self._proc.ioc_restart_pending(ioc)91    def start_iocs(self, iocs: List[str]):92        """ Start a number of IOCs.93        Args:94            iocs (list): The IOCs to start95        """96        for ioc in iocs:97            self.start_ioc(ioc)98    def restart_iocs(self, iocs: List[str], reapply_auto: bool = False):99        """ Restart a number of IOCs.100        Args:101            iocs (list): The IOCs to restart102            reapply_auto (bool): Whether to reapply auto restart settings automatically103        """104        auto = dict()105        for ioc in iocs:106            auto[ioc] = self.get_autorestart(ioc)107            self.restart_ioc(ioc)108        # Reapply auto-restart settings109        if reapply_auto:110            for ioc in iocs:111                self.waitfor_running(ioc)112                self.set_autorestart(ioc, auto[ioc])113    def stop_iocs(self, iocs: List[str]):114        """ Stop a number of IOCs.115        Args:116            iocs (list): The IOCs to stop117        """118        for ioc in iocs:119            self.stop_ioc(ioc)120    def ioc_exists(self, ioc: str) -> bool:121        """Checks an IOC exists.122        Args:123            ioc (string): The name of the IOC124        Returns:125            bool : Whether the IOC exists126        """127        try:128            self.get_ioc_status(ioc)129            return True130        except:131            return False132    def set_autorestart(self, ioc: str, enable: bool):133        """Used to set the auto-restart property.134        Args:135            ioc (string): The name of the IOC136            enable (bool): Whether to enable auto-restart137        """138        try:139            if self.get_ioc_status(ioc) == "RUNNING":140                # Get current auto-restart status141                curr = self._proc.get_autorestart(ioc)142                if curr != enable:143                    # If different to requested then change it144                    self._proc.toggle_autorestart(ioc)145                    return146                print_and_log(f"Auto-restart for IOC {ioc} unchanged as value has not changed")147            else:148                print_and_log(f"Auto-restart for IOC {ioc} unchanged as IOC is not running")149        except Exception as err:150            print_and_log(f"Could not set auto-restart IOC {ioc}: {err}", "MAJOR")151    def get_autorestart(self, ioc: str) -> bool:152        """Gets the current auto-restart setting of the specified IOC.153        Args:154            ioc (string): The name of the IOC155        Returns:156            bool : Whether auto-restart is enabled157        """158        try:159            return self._proc.get_autorestart(ioc)160        except Exception as err:161            print_and_log(f"Could not get auto-restart setting for IOC {ioc}: {err}", "MAJOR")162    def waitfor_running(self, ioc: str, timeout: int = 5):163        """Waits for the IOC to start running.164        Args:165            ioc (string): The name of the IOC166            timeout(int, optional): Maximum time to wait before returning167        """168        if self.ioc_exists(ioc):169            start = time()170            while self.ioc_restart_pending(ioc) or self.get_ioc_status(ioc) != "RUNNING":171                sleep(0.5)172                if time() - start >= timeout:173                    print_and_log(f"Gave up waiting for IOC {ioc} to be running", "MAJOR")...

ioctl.py

Source:ioctl.py

...71# direction bits72_IOC_NONE = 073_IOC_WRITE = 174_IOC_READ = 275def _IOC(dir, type, nr, FMT):76    return int((((dir) << _IOC_DIRSHIFT) | \77                ((type) << _IOC_TYPESHIFT) | \78                ((nr) << _IOC_NRSHIFT) | \79                ((FMT) << _IOC_SIZESHIFT)) & 0xffffffff)80# used to create numbers81# type is the assigned type from the kernel developers82# nr is the base ioctl number (defined by driver writer)83# FMT is a struct module format string.84def _IO(type, nr): return _IOC(_IOC_NONE, (type), (nr), 0)85def _IOR(type, nr, FMT): return _IOC(_IOC_READ, (type), (nr), sizeof(FMT))86def _IOW(type, nr, FMT): return _IOC(_IOC_WRITE, (type), (nr), sizeof(FMT))87def _IOWR(type, nr, FMT): return _IOC(_IOC_READ | _IOC_WRITE, (type), (nr), sizeof(FMT))88# used to decode ioctl numbers89def _IOC_DIR(nr): return (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)90def _IOC_TYPE(nr): return (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)91def _IOC_NR(nr): return (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)...

asm_generic_ioctl.py

Source:asm_generic_ioctl.py

...33# Direction bits34_IOC_NONE = 035_IOC_WRITE = 136_IOC_READ = 237def _IOC(dir, type, nr, size):38    return (dir  << _IOC_DIRSHIFT) | \39           (type << _IOC_TYPESHIFT) | \40           (nr   << _IOC_NRSHIFT) | \41           (size << _IOC_SIZESHIFT)42def _IOC_TYPECHECK(t):43    return ctypes.sizeof(t)44# used to create ioctl numbers45def _IO(type, nr):46    return _IOC(_IOC_NONE, type, nr, 0)47def _IOR(type, nr, size):48    return _IOC(_IOC_READ, type, nr, _IOC_TYPECHECK(size))49def _IOW(type, nr, size):50    return _IOC(_IOC_WRITE, type, nr, _IOC_TYPECHECK(size))51def _IOWR(type,nr,size):52    return _IOC(_IOC_READ|_IOC_WRITE, type, nr, _IOC_TYPECHECK(size))53def _IOR_BAD(type,nr,size):54    return _IOC(_IOC_READ, type, nr, sizeof(size))55def _IOW_BAD(type,nr,size):56    return _IOC(_IOC_WRITE,type,nr, sizeof(size))57def _IOWR_BAD(type,nr,size):58    return _IOC(_IOC_READ|_IOC_WRITE, type, nr, sizeof(size))59# ...and for the drivers/sound files...60IOC_IN = _IOC_WRITE << _IOC_DIRSHIFT61IOC_OUT = _IOC_READ << _IOC_DIRSHIFT62IOC_INOUT = (_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT63IOCSIZE_MASK = _IOC_SIZEMASK << _IOC_SIZESHIFT...

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.