Steve Karg
70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2009 Steve Karg <skarg@users.sourceforge.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*********************************************************************/
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <time.h>
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#include <limits.h>
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#include "bacport.h"
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#include "bacnet/basic/sys/mstimer.h"
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/** @file linux/mstimer.c Provides Linux-specific time and timer functions. */
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/* start time for the clock */
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static struct timespec start;
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/** @brief The timeGetTime function retrieves the system time, in milliseconds.
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* The system time is the time elapsed since Windows was started.
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*/
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static unsigned long timeGetTime(void)
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{
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struct timespec now;
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unsigned long ticks;
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clock_gettime(CLOCK_MONOTONIC, &now);
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ticks = (now.tv_sec - start.tv_sec) * 1000 +
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(now.tv_nsec - start.tv_nsec) / 1000000;
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return ticks;
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}
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/**
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* @brief returns the current millisecond count
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* @return millisecond counter
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*/
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unsigned long mstimer_now(void)
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{
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return timeGetTime();
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}
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/**
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* @brief Initialization for timer
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*/
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void mstimer_init(void)
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{
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clock_gettime(CLOCK_MONOTONIC, &start);
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}
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