From 8e2f7e87f4d854e697c40545326a16e50614dd5c Mon Sep 17 00:00:00 2001 From: Neels Hofmeyr Date: Thu, 22 Sep 2016 03:58:13 +0200 Subject: add osmo_gettimeofday as a shim around gettimeofday This allows feeding a custom time for unit tests by overriding osmo_gettimeofday. Change-Id: Ic7a81a6eb51f27fe452962b91f2eae2070d87089 --- src/timer_gettimeofday.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 src/timer_gettimeofday.c (limited to 'src/timer_gettimeofday.c') diff --git a/src/timer_gettimeofday.c b/src/timer_gettimeofday.c new file mode 100644 index 00000000..81a1598d --- /dev/null +++ b/src/timer_gettimeofday.c @@ -0,0 +1,58 @@ +/* + * (C) 2016 by sysmocom s.f.m.c. GmbH + * All Rights Reserved + * + * Authors: Neels Hofmeyr + * + * 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 2 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, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +/*! \addtogroup timer + * @{ + */ + +/*! \file timer_gettimeofday.c + */ + +#include +#include + +bool osmo_gettimeofday_override = false; +struct timeval osmo_gettimeofday_override_time = { 23, 424242 }; + +/*! \brief shim around gettimeofday to be able to set the time manually. + * To override, set osmo_gettimeofday_override == true and set the desired + * current time in osmo_gettimeofday_override_time. */ +int osmo_gettimeofday(struct timeval *tv, struct timezone *tz) +{ + if (osmo_gettimeofday_override) { + *tv = osmo_gettimeofday_override_time; + return 0; + } + + return gettimeofday(tv, tz); +} + +/*! \brief convenience function to advance the fake time. + * Add the given values to osmo_gettimeofday_override_time. */ +void osmo_gettimeofday_override_add(time_t secs, suseconds_t usecs) +{ + struct timeval val = { secs, usecs }; + timeradd(&osmo_gettimeofday_override_time, &val, + &osmo_gettimeofday_override_time); +} + +/*! @} */ -- cgit v1.2.3