Kari Argillander
cb243c36a8
* Change MIT license texts to SPDX-License-Identifier SPDX-License-Identifier is much easier to understand and grep than license text so use that instead. * Change GPL exception license texts to SPDX-License-Identifier SPDX-License-Identifier is much easier to understand and grep than license text so use that instead. * Change misc license texts to SPDX-License-Identifier There are some external code in repo which are not licenses as most of the stuff in this repo. We still want every file to have SPDX identifier to easily grep licenses. * Add currently used license files Even though Bacnet-Stack is using SPDX identifiers we still need to give those license files with source. For this reason add all license files to license/ folder. SPDX has also files which would make same thing but this is style which example Linux kernel is using and it is quite clear so I choose that one for now. I choosed not yet bring CC-PDDC as that is not right license for those files. --------- Co-authored-by: Kari Argillander <kari.argillander@fidelix.com>
72 lines
1.8 KiB
C
72 lines
1.8 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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* SPDX-License-Identifier: MIT
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*
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*********************************************************************/
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#include <limits.h>
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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 "bacnet/basic/sys/mstimer.h"
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#ifdef __MACH__
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#include <mach/clock.h>
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#include <mach/mach.h>
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#endif
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/** @file bsd/timer.c Provides BSD-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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/* The timeGetTime function retrieves the system time, in milliseconds.
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The system time is the time elapsed since the OS was started. */
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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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#ifdef __MACH__
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clock_serv_t cclock;
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mach_timespec_t mts;
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host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
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clock_get_time(cclock, &mts);
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mach_port_deallocate(mach_task_self(), cclock);
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now.tv_sec = mts.tv_sec;
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now.tv_nsec = mts.tv_nsec;
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#else
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clock_gettime(CLOCK_MONOTONIC, &now);
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#endif
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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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#ifdef __MACH__
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clock_serv_t cclock;
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mach_timespec_t mts;
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host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
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clock_get_time(cclock, &mts);
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mach_port_deallocate(mach_task_self(), cclock);
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start.tv_sec = mts.tv_sec;
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start.tv_nsec = mts.tv_nsec;
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#else
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clock_gettime(CLOCK_MONOTONIC, &start);
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#endif
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}
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