| /* |
| * (C) 2011 Sylvain Munaut <tnt@246tNt.com> |
| * All Rights Reserved |
| * |
| * 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. |
| * |
| */ |
| |
| /*! \defgroup timer Osmocom timers |
| * @{ |
| */ |
| |
| /*! \file timer_compat.h |
| * \brief Compatibility header with some helpers |
| */ |
| |
| #pragma once |
| |
| |
| /* Convenience macros for operations on timevals. |
| NOTE: `timercmp' does not work for >= or <=. */ |
| |
| #ifndef timerisset |
| # define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) |
| #endif |
| |
| #ifndef timerclear |
| # define timerclear(tvp) ((tvp)->tv_sec = (tvp)->tv_usec = 0) |
| #endif |
| |
| #ifndef timercmp |
| # define timercmp(a, b, CMP) \ |
| (((a)->tv_sec == (b)->tv_sec) ? \ |
| ((a)->tv_usec CMP (b)->tv_usec) : \ |
| ((a)->tv_sec CMP (b)->tv_sec)) |
| #endif |
| |
| #ifndef timeradd |
| # define timeradd(a, b, result) \ |
| do { \ |
| (result)->tv_sec = (a)->tv_sec + (b)->tv_sec; \ |
| (result)->tv_usec = (a)->tv_usec + (b)->tv_usec; \ |
| if ((result)->tv_usec >= 1000000) \ |
| { \ |
| ++(result)->tv_sec; \ |
| (result)->tv_usec -= 1000000; \ |
| } \ |
| } while (0) |
| #endif |
| |
| #ifndef timersub |
| # define timersub(a, b, result) \ |
| do { \ |
| (result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \ |
| (result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \ |
| if ((result)->tv_usec < 0) { \ |
| --(result)->tv_sec; \ |
| (result)->tv_usec += 1000000; \ |
| } \ |
| } while (0) |
| #endif |
| |
| |
| /*! @} */ |