103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/*
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* Copyright (c) 2005, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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/**
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* \file
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* Clock implementation for Unix.
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#include "sys/clock.h"
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#include <time.h>
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#include <sys/time.h>
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/*---------------------------------------------------------------------------*/
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typedef struct clock_timespec_s {
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time_t tv_sec;
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long tv_nsec;
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} clock_timespec_t;
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/*---------------------------------------------------------------------------*/
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static void
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get_time(clock_timespec_t *spec)
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{
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#if defined(__linux__) || (defined(__MACH__) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200)
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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spec->tv_sec = ts.tv_sec;
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spec->tv_nsec = ts.tv_nsec;
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#else
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struct timeval tv;
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gettimeofday(&tv, NULL);
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spec->tv_sec = tv.tv_sec;
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spec->tv_nsec = tv.tv_usec * 1000;
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#endif
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}
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/*---------------------------------------------------------------------------*/
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clock_time_t
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clock_time(void)
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{
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clock_timespec_t ts;
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get_time(&ts);
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return ts.tv_sec * CLOCK_SECOND + ts.tv_nsec / (1000000000 / CLOCK_SECOND);
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}
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/*---------------------------------------------------------------------------*/
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unsigned long
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clock_seconds(void)
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{
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clock_timespec_t ts;
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get_time(&ts);
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return ts.tv_sec;
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_delay(unsigned int d)
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{
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/* Does not do anything. */
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}
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/*---------------------------------------------------------------------------*/
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void
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clock_init(void)
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{
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/* Provide this function, required by main() */
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return;
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}
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/*---------------------------------------------------------------------------*/
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