# osmo_ms_driver: Starter for processes # Help to start processes over time. # # Copyright (C) 2018 by Holger Hans Peter Freyther # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as # published by the Free Software Foundation, either version 3 of the # License, or (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . from osmo_gsm_tester import log from .starter import OsmoVirtPhy, OsmoMobile from datetime import timedelta import time def imsi_ki_gen(): """ Generate IMSIs and KIs to be used by test. """ n = 1010000000000 while True: yield ("%.15d" % n, "00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00") n += 1 class Results(log.Origin): def __init__(self, name): super().__init__(log.C_RUN, name) self._time_of_registration = None self._time_of_launch = None self._time_of_lu = None def set_start_time(self, time): assert self._time_of_registration is None self._time_of_registration = time def set_launch_time(self, time): assert self._time_of_launch is None self._time_of_launch = time def set_lu_time(self, time): assert self._time_of_lu is None self._time_of_lu = time def start_time(self): return self._time_of_registration or 0 def launch_time(self): return self._time_of_launch or 0 def lu_time(self): return self._time_of_lu or 0 def lu_delay(self): return self.lu_time() - self.start_time() class MassUpdateLocationTest(log.Origin): """ A test to launch a configurable amount of MS and make them execute a Location Updating Procedure. Configure the number of MS to be tested and a function that decides how quickly to start them and a timeout. """ TEMPLATE_LUA = "osmo-mobile-lu.lua" TEMPLATE_CFG = "osmo-mobile.cfg" TEST_TIME = timedelta(seconds=120) def __init__(self, name, number_of_ms, cdf_function, event_server, tmp_dir): super().__init__(log.C_RUN, name) self._number_of_ms = number_of_ms self._cdf = cdf_function self._cdf.set_target(number_of_ms) self._unstarted = [] self._phys = [] self._results = {} imsi_gen = imsi_ki_gen() for i in range(0, number_of_ms): ms_name = "%.5d" % i phy = OsmoVirtPhy(ms_name, tmp_dir) self._phys.append(phy) launcher = OsmoMobile(ms_name, tmp_dir, self.TEMPLATE_LUA, self.TEMPLATE_CFG, imsi_gen, phy.phy_filename(), event_server.server_path()) self._results[ms_name] = Results(ms_name) self._unstarted.append(launcher) self._event_server = event_server self._event_server.register(self.handle_msg) def pre_launch(self, loop): """ We need the virtphy's be ready when the lua script in the mobile comes and kicks-off the test. In lua we don't seem to be able to just stat/check if a file/socket exists so we need to do this from here. """ self.log("Pre-launching all virtphy's") for phy in self._phys: phy.start(loop) self.log("Checking if sockets are in the filesystem") for phy in self._phys: phy.verify_ready() def launch(self, loop): self.log("Starting testcase") self.pre_launch(loop) self._start_time = time.clock_gettime(time.CLOCK_MONOTONIC) self._end_time = self._start_time + \ self._cdf.duration().total_seconds() + \ timedelta(seconds=120).total_seconds() current_time = self._start_time step_size = self._cdf.step_size().total_seconds() self._started = [] too_slow = 0 # Start self._cdf.step_once() while len(self._unstarted) > 0: # Check for timeout # start pending MS while len(self._started) < self._cdf.current_scaled_value() and len(self._unstarted) > 0: ms = self._unstarted.pop(0) ms.start(loop) launch_time = time.clock_gettime(time.CLOCK_MONOTONIC) self._results[ms.name_number()].set_launch_time(launch_time) self._started.append(ms) # Progress and sleep self._cdf.step_once() now_time = time.clock_gettime(time.CLOCK_MONOTONIC) sleep_time = (current_time + step_size) - now_time if sleep_time <= 0: self.log("Starting too slowly. Moving on", target=(current_time + step_size), now=now_time, sleep=sleep_time) too_slow += 1 else: loop.schedule_timeout(sleep_time) loop.select() current_time += step_size end_time = time.clock_gettime(time.CLOCK_MONOTONIC) self.log("All started...", too_slow=too_slow, duration=end_time - self._start_time) def stop_all(self): for launcher in self._started: launcher.kill() def handle_msg(self, _data, addr, time): import json data = json.loads(_data.decode()) if data['type'] == 'register': ms = self._results[data['ms']] ms.set_start_time(time) launch_delay = ms.start_time() - ms.launch_time() self.log("MS start registered ", ms=ms, at=time, delay=launch_delay) elif data['type'] == 'event': if data['data']['lu_done'] == 1: ms = self._results[data['ms']] ms.set_lu_time(time) self.log("MS performed LU ", ms=ms, at=time, lu_delay=ms.lu_delay()) else: print(time, data) raise Exception("Unknown event type..:" + _data.decode()) def wait_for_result(self, loop): to_complete_time = self._start_time + self.TEST_TIME.total_seconds() while True: now_time = time.clock_gettime(time.CLOCK_MONOTONIC) sleep_time = to_complete_time - now_time if sleep_time < 0: break loop.schedule_timeout(sleep_time) loop.select() def print_stats(self): from functools import reduce all_completed = reduce(lambda b, ms: b and ms.lu_time() is not None, self._results.values(), True) min_value = min(self._results.values(), key=lambda x: x.lu_delay()) max_value = max(self._results.values(), key=lambda x: x.lu_delay()) self.log("Tests done", all_completed=all_completed, min=min_value.lu_delay(), max=max_value.lu_delay())