| # osmo_ms_driver: Locationg Update Test |
| # Create MS's and wait for the Location Update to succeed. |
| # |
| # 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 <http://www.gnu.org/licenses/>. |
| |
| from copy import copy |
| from osmo_gsm_tester import log |
| from .starter import OsmoVirtPhy, OsmoMobile |
| from .test_support import imsi_ki_gen, Results |
| |
| from datetime import timedelta |
| |
| import time |
| |
| class LUResult(Results): |
| |
| def __init__(self, name): |
| super().__init__(name) |
| self._time_of_lu = None |
| |
| def set_lu_time(self, time): |
| assert self._time_of_lu is None |
| self._time_of_lu = time |
| |
| def has_lu_time(self): |
| return self._time_of_lu is not None |
| |
| 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" |
| |
| 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._mobiles = [] |
| self._phys = [] |
| self._results = {} |
| imsi_gen = imsi_ki_gen() |
| |
| self._outstanding = number_of_ms |
| 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] = LUResult(ms_name) |
| self._mobiles.append(launcher) |
| self._event_server = event_server |
| self._event_server.register(self.handle_msg) |
| self._unstarted = copy(self._mobiles) |
| |
| def mobiles(self): |
| return self._mobiles |
| |
| 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 prepare(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() |
| |
| self._started = [] |
| self._too_slow = 0 |
| |
| def step_once(self, loop, current_time): |
| if len(self._unstarted) <= 0: |
| return current_time, None |
| |
| step_size = self._cdf.step_size().total_seconds() |
| |
| # Start |
| self._cdf.step_once() |
| |
| # 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) |
| |
| 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) |
| self._too_slow += 1 |
| sleep_time = 0 |
| |
| if len(self._unstarted) == 0: |
| end_time = time.clock_gettime(time.CLOCK_MONOTONIC) |
| self.log("All started...", too_slow=self._too_slow, duration=end_time - self._start_time) |
| return current_time, None |
| |
| return current_time + step_size, sleep_time |
| |
| def run_test(self, loop, test_duration): |
| self.prepare(loop) |
| |
| to_complete_time = self._start_time + test_duration.total_seconds() |
| tick_time = self._start_time |
| |
| while not self.all_completed(): |
| tick_time, sleep_time = self.step_once(loop, tick_time) |
| now_time = time.clock_gettime(time.CLOCK_MONOTONIC) |
| if sleep_time is None: |
| sleep_time = to_complete_time - now_time |
| if sleep_time < 0: |
| break |
| loop.schedule_timeout(sleep_time) |
| loop.select() |
| |
| 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']] |
| if not ms.has_lu_time(): |
| self._outstanding = self._outstanding - 1 |
| 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 all_completed(self): |
| return self._outstanding == 0 |
| |
| def results_min_max(self, results): |
| min_value = max_value = None |
| for result in results: |
| if min_value is None or result.lu_delay() < min_value: |
| min_value = result.lu_delay() |
| if max_value is None or result.lu_delay() > max_value: |
| max_value = result.lu_delay() |
| return min_value, max_value |
| |
| def print_stats(self): |
| all_completed = self.all_completed() |
| min_value, max_value = self.results_min_max(filter(lambda x: x.has_lu_time(), self._results.values())) |
| |
| self.log("Tests done", all_completed=all_completed, |
| min=min_value, max=max_value) |