Lionel Gauthier
059a0a3fdc
This is done for better merging branch/LG_PRE_RELEASE_0.3 into trunk (same process is applied on this branch) git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7073 818b1a75-f10b-46b9-bf7c-635c3b92a50f
101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenAirInterface is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@eurecom.fr
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Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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*******************************************************************************/
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/*! \file rt_wrapper.h
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* \brief provides a wrapper for the timing function for real-time opeartions depending on weather RTAI is used or not
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* \author F. Kaltenberger
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* \date 2013
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* \version 0.1
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* \company Eurecom
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* \email: florian.kaltenberger@eurecom.fr
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* \note
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* \warning
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*/
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#include "rt_wrapper.h"
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#ifndef RTAI
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struct timespec interval, next, now, res;
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clockid_t clock_id = CLOCK_MONOTONIC; //other options are CLOCK_MONOTONIC, CLOCK_REALTIME, CLOCK_PROCESS_CPUTIME_ID, CLOCK_THREAD_CPUTIME_ID
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RTIME rt_get_time_ns (void)
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{
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clock_gettime(clock_id, &now);
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return(now.tv_sec*1e9+now.tv_nsec);
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}
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int rt_sleep_ns (RTIME x)
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{
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int ret;
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clock_gettime(clock_id, &now);
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interval.tv_sec = x/((RTIME)1000000000);
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interval.tv_nsec = x%((RTIME)1000000000);
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//rt_printk("sleeping for %d sec and %d ns\n",interval.tv_sec,interval.tv_nsec);
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next = now;
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next.tv_sec += interval.tv_sec;
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next.tv_nsec += interval.tv_nsec;
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if (next.tv_nsec>=1000000000) {
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next.tv_nsec -= 1000000000;
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next.tv_sec++;
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}
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ret = clock_nanosleep(clock_id, TIMER_ABSTIME, &next, NULL);
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/*
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if (ret==EFAULT)
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rt_printk("rt_sleep_ns returned EFAULT (%d), reqested %d sec and %d ns\n",ret,next.tv_sec,next.tv_nsec);
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if (ret==EINVAL)
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rt_printk("rt_sleep_ns returned EINVAL (%d), reqested %d sec and %d ns\n",ret,next.tv_sec,next.tv_nsec);
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if (ret==EINTR)
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rt_printk("rt_sleep_ns returned EINTR (%d), reqested %d sec and %d ns\n",ret,next.tv_sec,next.tv_nsec);
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*/
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return(ret);
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}
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void check_clock(void)
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{
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if (clock_getres(clock_id, &res)) {
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printf("clock_getres failed");
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} else {
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printf("reported resolution = %llu ns\n", (long long int) ((int) 1e9 * res.tv_sec) + (long long int) res.tv_nsec);
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}
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}
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#else
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int rt_sleep_ns(RTIME x)
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{
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rt_sleep(nano2count(x));
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return(0);
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}
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#endif
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