| # osmo_gsm_tester: Event loop |
| # |
| # Copyright (C) 2016-2017 by sysmocom - s.f.m.c. GmbH |
| # |
| # Author: Pau Espin Pedrol <pespin@sysmocom.de> |
| # |
| # 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/>. |
| |
| # These will be initialized before each test run. |
| # A test script can thus establish its context by doing: |
| # from osmo_gsm_tester.test import * |
| import time |
| from . import log |
| |
| poll_funcs = [] |
| |
| def register_poll_func(func): |
| global poll_funcs |
| poll_funcs.append(func) |
| |
| def unregister_poll_func(func): |
| global poll_funcs |
| poll_funcs.remove(func) |
| |
| def poll(): |
| global poll_funcs |
| for func in poll_funcs: |
| func() |
| |
| def wait_no_raise(log_obj, condition, condition_args, condition_kwargs, timeout, timestep): |
| if not timeout or timeout < 0: |
| self = log_obj |
| raise log.Error('wait() *must* time out at some point.', timeout=timeout) |
| if timestep < 0.1: |
| timestep = 0.1 |
| |
| started = time.time() |
| while True: |
| poll() |
| if condition(*condition_args, **condition_kwargs): |
| return True |
| waited = time.time() - started |
| if waited > timeout: |
| return False |
| time.sleep(timestep) |
| |
| def wait(log_obj, condition, *condition_args, timeout=300, timestep=1, **condition_kwargs): |
| if not wait_no_raise(log_obj, condition, condition_args, condition_kwargs, timeout, timestep): |
| log.ctx(log_obj) |
| raise log.Error('Wait timeout') |
| |
| def sleep(log_obj, seconds): |
| assert seconds > 0. |
| wait_no_raise(log_obj, lambda: False, [], {}, timeout=seconds, timestep=min(seconds, 1)) |
| |
| |
| # vim: expandtab tabstop=4 shiftwidth=4 |