2019-08-22 15:34:50 +08:00
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/*
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2021-03-08 18:19:04 +08:00
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* Copyright (c) 2006-2021, RT-Thread Development Team
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2019-08-22 15:34:50 +08:00
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2019-08-21 zhangjun copy from minilibc
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2020-09-08 10:26:03 +08:00
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* 2020-09-07 Meco Man combine gcc armcc iccarm
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2021-02-05 13:13:22 +08:00
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* 2021-02-05 Meco Man add timegm()
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2021-02-08 10:33:12 +08:00
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* 2021-02-07 Meco Man fixed gettimeofday()
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2021-02-08 00:56:31 +08:00
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* 2021-02-08 Meco Man add settimeofday() stime()
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2021-02-11 02:32:47 +08:00
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* 2021-02-10 Meco Man add ctime_r() and re-implement ctime()
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2021-02-11 02:33:45 +08:00
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* 2021-02-11 Meco Man fix bug #3183 - align days[] and months[] to 4 bytes
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2021-02-11 20:48:30 +08:00
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* 2021-02-12 Meco Man add errno
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2021-02-12 01:30:41 +08:00
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* 2012-12-08 Bernard <clock_time.c> fix the issue of _timevalue.tv_usec initialization,
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* which found by Rob <rdent@iinet.net.au>
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* 2021-02-12 Meco Man move all of the functions located in <clock_time.c> to this file
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2021-04-28 13:03:43 +08:00
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* 2021-03-15 Meco Man fixed a bug of leaking memory in asctime()
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2021-05-01 14:18:46 +08:00
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* 2021-05-01 Meco Man support fixed timezone
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2021-07-18 14:34:35 +08:00
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* 2021-07-21 Meco Man implement that change/set timezone APIs
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2019-08-22 15:34:50 +08:00
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*/
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2021-05-02 09:29:46 +08:00
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#include "sys/time.h"
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2021-05-22 02:50:35 +08:00
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#include <sys/errno.h>
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2019-08-22 15:34:50 +08:00
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#include <rtthread.h>
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2021-03-28 10:32:20 +08:00
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2021-02-05 13:13:22 +08:00
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#ifdef RT_USING_DEVICE
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#include <rtdevice.h>
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#endif
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2021-03-28 10:32:20 +08:00
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#define DBG_TAG "TIME"
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#define DBG_LVL DBG_INFO
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#include <rtdbg.h>
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2021-02-05 13:13:22 +08:00
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/* seconds per day */
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#define SPD 24*60*60
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2019-08-22 15:34:50 +08:00
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/* days per month -- nonleap! */
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2021-02-12 01:30:41 +08:00
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static const short __spm[13] =
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2019-08-22 15:34:50 +08:00
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{
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0,
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(31),
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(31 + 28),
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(31 + 28 + 31),
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(31 + 28 + 31 + 30),
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(31 + 28 + 31 + 30 + 31),
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(31 + 28 + 31 + 30 + 31 + 30),
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(31 + 28 + 31 + 30 + 31 + 30 + 31),
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(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31),
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(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30),
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(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31),
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(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30),
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(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31),
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};
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2021-02-11 02:33:45 +08:00
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ALIGN(4) static const char days[] = "Sun Mon Tue Wed Thu Fri Sat ";
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ALIGN(4) static const char months[] = "Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ";
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2019-08-22 15:34:50 +08:00
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2021-02-05 13:13:22 +08:00
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static int __isleap(int year)
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2019-08-22 15:34:50 +08:00
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{
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/* every fourth year is a leap year except for century years that are
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* not divisible by 400. */
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/* return (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)); */
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return (!(year % 4) && ((year % 100) || !(year % 400)));
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}
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2021-02-05 13:13:22 +08:00
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static void num2str(char *c, int i)
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{
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c[0] = i / 10 + '0';
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c[1] = i % 10 + '0';
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}
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2021-04-15 14:01:55 +08:00
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/**
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2021-05-01 14:18:46 +08:00
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* Get time from RTC device (without timezone, UTC+0)
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2021-04-15 14:01:55 +08:00
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* @param tv: struct timeval
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2021-05-01 14:18:46 +08:00
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* @return the operation status, RT_EOK on successful
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2021-04-15 14:01:55 +08:00
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*/
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2021-05-01 14:18:46 +08:00
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static rt_err_t get_timeval(struct timeval *tv)
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2021-04-15 14:01:55 +08:00
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{
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#ifdef RT_USING_RTC
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static rt_device_t device = RT_NULL;
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rt_err_t rst = -RT_ERROR;
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if (tv == RT_NULL)
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2021-05-01 14:18:46 +08:00
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return -RT_EINVAL;
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2021-04-15 14:01:55 +08:00
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/* default is 0 */
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tv->tv_sec = 0;
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tv->tv_usec = 0;
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/* optimization: find rtc device only first */
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if (device == RT_NULL)
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{
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device = rt_device_find("rtc");
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}
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/* read timestamp from RTC device */
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if (device != RT_NULL)
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{
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if (rt_device_open(device, 0) == RT_EOK)
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{
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rst = rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &tv->tv_sec);
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rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME_US, &tv->tv_usec);
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rt_device_close(device);
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}
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}
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else
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{
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2021-04-28 13:03:43 +08:00
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/* LOG_W will cause a recursive printing if ulog timestamp function is enabled */
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2021-04-15 14:01:55 +08:00
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rt_kprintf("Cannot find a RTC device to provide time!\r\n");
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2021-05-01 14:18:46 +08:00
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return -RT_ENOSYS;
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2021-04-15 14:01:55 +08:00
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}
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2021-05-01 14:18:46 +08:00
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return rst;
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2021-04-15 14:01:55 +08:00
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#else
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2021-04-28 13:03:43 +08:00
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/* LOG_W will cause a recursive printing if ulog timestamp function is enabled */
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2021-04-15 14:01:55 +08:00
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rt_kprintf("Cannot find a RTC device to provide time!\r\n");
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2021-05-01 14:18:46 +08:00
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return -RT_ENOSYS;
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2021-04-15 14:01:55 +08:00
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#endif /* RT_USING_RTC */
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}
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/**
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* Set time to RTC device (without timezone)
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* @param tv: struct timeval
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2021-05-01 14:18:46 +08:00
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* @return the operation status, RT_EOK on successful
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2021-04-15 14:01:55 +08:00
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*/
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static int set_timeval(struct timeval *tv)
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{
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#ifdef RT_USING_RTC
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static rt_device_t device = RT_NULL;
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2021-04-15 16:34:09 +08:00
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rt_err_t rst = -RT_ERROR;
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2021-04-15 14:01:55 +08:00
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if (tv == RT_NULL)
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2021-05-01 14:18:46 +08:00
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return -RT_EINVAL;
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2021-04-15 14:01:55 +08:00
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/* optimization: find rtc device only first */
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if (device == RT_NULL)
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{
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device = rt_device_find("rtc");
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}
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/* read timestamp from RTC device */
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if (device != RT_NULL)
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{
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if (rt_device_open(device, 0) == RT_EOK)
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{
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rst = rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &tv->tv_sec);
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rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME_US, &tv->tv_usec);
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rt_device_close(device);
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}
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}
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else
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{
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LOG_W("Cannot find a RTC device to provide time!");
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2021-05-01 14:18:46 +08:00
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return -RT_ENOSYS;
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2021-04-15 14:01:55 +08:00
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}
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2021-05-01 14:18:46 +08:00
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return rst;
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2021-04-15 14:01:55 +08:00
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#else
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LOG_W("Cannot find a RTC device to provide time!");
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2021-05-01 14:18:46 +08:00
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return -RT_ENOSYS;
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2021-04-15 14:01:55 +08:00
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#endif /* RT_USING_RTC */
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}
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2019-08-22 15:34:50 +08:00
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struct tm *gmtime_r(const time_t *timep, struct tm *r)
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{
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time_t i;
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register time_t work = *timep % (SPD);
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r->tm_sec = work % 60;
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work /= 60;
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r->tm_min = work % 60;
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r->tm_hour = work / 60;
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work = *timep / (SPD);
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r->tm_wday = (4 + work) % 7;
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for (i = 1970;; ++i)
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{
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register time_t k = __isleap(i) ? 366 : 365;
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if (work >= k)
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work -= k;
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else
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break;
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}
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r->tm_year = i - 1900;
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r->tm_yday = work;
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r->tm_mday = 1;
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if (__isleap(i) && (work > 58))
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{
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if (work == 59)
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r->tm_mday = 2; /* 29.2. */
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work -= 1;
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}
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for (i = 11; i && (__spm[i] > work); --i)
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;
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r->tm_mon = i;
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r->tm_mday += work - __spm[i];
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2021-02-11 02:31:53 +08:00
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2021-07-18 14:34:35 +08:00
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r->tm_isdst = rt_tz_is_dst();
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2019-08-22 15:34:50 +08:00
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return r;
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}
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2021-02-12 01:46:16 +08:00
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RTM_EXPORT(gmtime_r);
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2019-08-22 15:34:50 +08:00
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struct tm* gmtime(const time_t* t)
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{
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static struct tm tmp;
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return gmtime_r(t, &tmp);
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}
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2021-02-12 01:46:16 +08:00
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RTM_EXPORT(gmtime);
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2019-08-22 15:34:50 +08:00
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struct tm* localtime_r(const time_t* t, struct tm* r)
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{
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2021-02-05 13:13:22 +08:00
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time_t local_tz;
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2021-07-18 14:34:35 +08:00
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local_tz = *t + rt_tz_get() * 3600;
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2021-02-05 13:13:22 +08:00
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return gmtime_r(&local_tz, r);
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2019-08-22 15:34:50 +08:00
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}
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2021-02-12 01:46:16 +08:00
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RTM_EXPORT(localtime_r);
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2019-08-22 15:34:50 +08:00
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struct tm* localtime(const time_t* t)
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{
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static struct tm tmp;
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return localtime_r(t, &tmp);
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}
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2021-02-12 01:46:16 +08:00
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RTM_EXPORT(localtime);
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2019-08-22 15:34:50 +08:00
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time_t mktime(struct tm * const t)
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{
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2021-04-15 14:31:23 +08:00
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time_t timestamp;
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timestamp = timegm(t);
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2021-07-18 14:34:35 +08:00
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timestamp = timestamp - 3600 * rt_tz_get();
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2021-04-15 14:31:23 +08:00
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return timestamp;
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2019-08-22 15:34:50 +08:00
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}
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2021-02-12 01:46:16 +08:00
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RTM_EXPORT(mktime);
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2019-08-22 15:34:50 +08:00
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char* asctime_r(const struct tm *t, char *buf)
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{
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/* "Wed Jun 30 21:49:08 1993\n" */
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*(int*) buf = *(int*) (days + (t->tm_wday << 2));
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*(int*) (buf + 4) = *(int*) (months + (t->tm_mon << 2));
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num2str(buf + 8, t->tm_mday);
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if (buf[8] == '0')
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buf[8] = ' ';
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buf[10] = ' ';
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num2str(buf + 11, t->tm_hour);
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buf[13] = ':';
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num2str(buf + 14, t->tm_min);
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buf[16] = ':';
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num2str(buf + 17, t->tm_sec);
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buf[19] = ' ';
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num2str(buf + 20, (t->tm_year + 1900) / 100);
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num2str(buf + 22, (t->tm_year + 1900) % 100);
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buf[24] = '\n';
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2021-03-15 11:29:42 +08:00
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buf[25] = '\0';
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2019-08-22 15:34:50 +08:00
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return buf;
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}
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2021-02-12 01:46:16 +08:00
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RTM_EXPORT(asctime_r);
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2019-08-22 15:34:50 +08:00
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char* asctime(const struct tm *timeptr)
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{
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2021-03-15 11:29:42 +08:00
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static char buf[26];
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2019-08-22 15:34:50 +08:00
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return asctime_r(timeptr, buf);
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}
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2021-02-12 01:46:16 +08:00
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RTM_EXPORT(asctime);
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2019-08-22 15:34:50 +08:00
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2021-04-29 00:21:10 +08:00
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char *ctime_r(const time_t * tim_p, char * result)
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2019-08-22 15:34:50 +08:00
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{
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2021-02-11 02:46:23 +08:00
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struct tm tm;
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2021-04-28 13:03:43 +08:00
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return asctime_r(localtime_r(tim_p, &tm), result);
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2021-02-11 02:32:47 +08:00
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}
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2021-02-12 01:46:16 +08:00
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RTM_EXPORT(ctime_r);
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2021-02-11 02:32:47 +08:00
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char* ctime(const time_t *tim_p)
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{
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2021-04-28 13:03:43 +08:00
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return asctime(localtime(tim_p));
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2019-08-22 15:34:50 +08:00
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}
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2021-02-12 01:46:16 +08:00
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RTM_EXPORT(ctime);
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2019-08-22 15:34:50 +08:00
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2021-04-14 20:10:47 +08:00
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/**
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* Returns the current time.
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*
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* @param time_t * t the timestamp pointer, if not used, keep NULL.
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*
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* @return The value ((time_t)-1) is returned if the calendar time is not available.
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* If timer is not a NULL pointer, the return value is also stored in timer.
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*
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*/
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RT_WEAK time_t time(time_t *t)
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{
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struct timeval now;
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2021-05-01 14:18:46 +08:00
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|
|
if(get_timeval(&now) == RT_EOK)
|
2021-04-14 20:10:47 +08:00
|
|
|
{
|
2021-04-15 00:57:01 +08:00
|
|
|
if (t)
|
|
|
|
{
|
|
|
|
*t = now.tv_sec;
|
|
|
|
}
|
|
|
|
return now.tv_sec;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2021-05-01 14:18:46 +08:00
|
|
|
rt_set_errno(EFAULT);
|
2021-04-15 16:34:09 +08:00
|
|
|
return ((time_t)-1);
|
2021-04-14 20:10:47 +08:00
|
|
|
}
|
2019-08-22 15:34:50 +08:00
|
|
|
}
|
2021-02-12 01:46:16 +08:00
|
|
|
RTM_EXPORT(time);
|
2019-08-22 15:34:50 +08:00
|
|
|
|
|
|
|
RT_WEAK clock_t clock(void)
|
|
|
|
{
|
|
|
|
return rt_tick_get();
|
|
|
|
}
|
2021-02-12 01:46:16 +08:00
|
|
|
RTM_EXPORT(clock);
|
2021-02-05 13:13:22 +08:00
|
|
|
|
2021-02-08 00:56:31 +08:00
|
|
|
int stime(const time_t *t)
|
2021-02-05 13:13:22 +08:00
|
|
|
{
|
2021-04-15 14:01:55 +08:00
|
|
|
struct timeval tv;
|
|
|
|
|
|
|
|
if (!t)
|
|
|
|
{
|
2021-05-01 14:18:46 +08:00
|
|
|
rt_set_errno(EFAULT);
|
2021-04-15 14:01:55 +08:00
|
|
|
return -1;
|
|
|
|
}
|
2021-02-08 00:56:31 +08:00
|
|
|
|
2021-04-15 14:01:55 +08:00
|
|
|
tv.tv_sec = *t;
|
2021-05-01 14:18:46 +08:00
|
|
|
if (set_timeval(&tv) == RT_EOK)
|
2021-02-08 00:56:31 +08:00
|
|
|
{
|
2021-04-15 14:01:55 +08:00
|
|
|
return 0;
|
2021-02-08 00:56:31 +08:00
|
|
|
}
|
|
|
|
else
|
2021-02-05 13:13:22 +08:00
|
|
|
{
|
2021-05-01 14:18:46 +08:00
|
|
|
rt_set_errno(EFAULT);
|
2021-02-08 00:56:31 +08:00
|
|
|
return -1;
|
2021-02-05 13:13:22 +08:00
|
|
|
}
|
|
|
|
}
|
2021-02-12 01:46:16 +08:00
|
|
|
RTM_EXPORT(stime);
|
2021-02-05 13:13:22 +08:00
|
|
|
|
|
|
|
time_t timegm(struct tm * const t)
|
|
|
|
{
|
|
|
|
register time_t day;
|
|
|
|
register time_t i;
|
|
|
|
register time_t years = t->tm_year - 70;
|
|
|
|
|
|
|
|
if (t->tm_sec > 60)
|
|
|
|
{
|
|
|
|
t->tm_min += t->tm_sec / 60;
|
|
|
|
t->tm_sec %= 60;
|
|
|
|
}
|
|
|
|
if (t->tm_min > 60)
|
|
|
|
{
|
|
|
|
t->tm_hour += t->tm_min / 60;
|
|
|
|
t->tm_min %= 60;
|
|
|
|
}
|
|
|
|
if (t->tm_hour > 24)
|
|
|
|
{
|
|
|
|
t->tm_mday += t->tm_hour / 24;
|
|
|
|
t->tm_hour %= 24;
|
|
|
|
}
|
|
|
|
if (t->tm_mon > 12)
|
|
|
|
{
|
|
|
|
t->tm_year += t->tm_mon / 12;
|
|
|
|
t->tm_mon %= 12;
|
|
|
|
}
|
|
|
|
while (t->tm_mday > __spm[1 + t->tm_mon])
|
|
|
|
{
|
|
|
|
if (t->tm_mon == 1 && __isleap(t->tm_year + 1900))
|
|
|
|
{
|
|
|
|
--t->tm_mday;
|
|
|
|
}
|
|
|
|
t->tm_mday -= __spm[t->tm_mon];
|
|
|
|
++t->tm_mon;
|
|
|
|
if (t->tm_mon > 11)
|
|
|
|
{
|
|
|
|
t->tm_mon = 0;
|
|
|
|
++t->tm_year;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (t->tm_year < 70)
|
|
|
|
return (time_t) - 1;
|
|
|
|
|
|
|
|
/* Days since 1970 is 365 * number of years + number of leap years since 1970 */
|
|
|
|
day = years * 365 + (years + 1) / 4;
|
|
|
|
|
|
|
|
/* After 2100 we have to substract 3 leap years for every 400 years
|
|
|
|
This is not intuitive. Most mktime implementations do not support
|
|
|
|
dates after 2059, anyway, so we might leave this out for it's
|
|
|
|
bloat. */
|
|
|
|
if (years >= 131)
|
|
|
|
{
|
|
|
|
years -= 131;
|
|
|
|
years /= 100;
|
|
|
|
day -= (years >> 2) * 3 + 1;
|
|
|
|
if ((years &= 3) == 3)
|
|
|
|
years--;
|
|
|
|
day -= years;
|
|
|
|
}
|
|
|
|
|
|
|
|
day += t->tm_yday = __spm[t->tm_mon] + t->tm_mday - 1 +
|
|
|
|
(__isleap(t->tm_year + 1900) & (t->tm_mon > 1));
|
|
|
|
|
|
|
|
/* day is now the number of days since 'Jan 1 1970' */
|
|
|
|
i = 7;
|
|
|
|
t->tm_wday = (day + 4) % i; /* Sunday=0, Monday=1, ..., Saturday=6 */
|
|
|
|
|
|
|
|
i = 24;
|
|
|
|
day *= i;
|
|
|
|
i = 60;
|
|
|
|
return ((day + t->tm_hour) * i + t->tm_min) * i + t->tm_sec;
|
|
|
|
}
|
2021-02-12 01:46:16 +08:00
|
|
|
RTM_EXPORT(timegm);
|
2021-02-08 00:56:31 +08:00
|
|
|
|
|
|
|
int gettimeofday(struct timeval *tv, struct timezone *tz)
|
|
|
|
{
|
2021-05-01 16:21:52 +08:00
|
|
|
/* The use of the timezone structure is obsolete;
|
|
|
|
* the tz argument should normally be specified as NULL.
|
|
|
|
* The tz_dsttime field has never been used under Linux.
|
|
|
|
* Thus, the following is purely of historic interest.
|
|
|
|
*/
|
2021-05-01 14:18:46 +08:00
|
|
|
if(tz != RT_NULL)
|
|
|
|
{
|
2021-05-02 09:24:41 +08:00
|
|
|
tz->tz_dsttime = DST_NONE;
|
2021-07-18 14:34:35 +08:00
|
|
|
tz->tz_minuteswest = -(rt_tz_get() * 60);
|
2021-05-01 14:18:46 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
if (tv != RT_NULL && get_timeval(tv) == RT_EOK)
|
2021-02-08 00:56:31 +08:00
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2021-05-01 14:18:46 +08:00
|
|
|
rt_set_errno(EFAULT);
|
2021-02-08 00:56:31 +08:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
2021-02-12 01:46:16 +08:00
|
|
|
RTM_EXPORT(gettimeofday);
|
2021-02-08 00:56:31 +08:00
|
|
|
|
|
|
|
int settimeofday(const struct timeval *tv, const struct timezone *tz)
|
|
|
|
{
|
2021-05-01 16:21:52 +08:00
|
|
|
/* The use of the timezone structure is obsolete;
|
|
|
|
* the tz argument should normally be specified as NULL.
|
|
|
|
* The tz_dsttime field has never been used under Linux.
|
|
|
|
* Thus, the following is purely of historic interest.
|
|
|
|
*/
|
|
|
|
if (tv != RT_NULL
|
|
|
|
&& tv->tv_sec >= 0
|
|
|
|
&& tv->tv_usec >= 0
|
2021-05-03 09:17:46 +08:00
|
|
|
&& set_timeval((struct timeval *)tv) == RT_EOK)
|
2021-02-08 00:56:31 +08:00
|
|
|
{
|
2021-05-01 16:21:52 +08:00
|
|
|
return 0;
|
2021-02-08 00:56:31 +08:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2021-05-01 16:21:52 +08:00
|
|
|
rt_set_errno(EINVAL);
|
2021-02-08 00:56:31 +08:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
2021-02-12 01:46:16 +08:00
|
|
|
RTM_EXPORT(settimeofday);
|
2021-02-12 01:30:41 +08:00
|
|
|
|
2021-03-05 23:13:57 +08:00
|
|
|
/* inherent in the toolchain */
|
2021-03-08 18:19:04 +08:00
|
|
|
RTM_EXPORT(difftime);
|
2021-03-05 23:13:57 +08:00
|
|
|
RTM_EXPORT(strftime);
|
2021-03-05 23:09:00 +08:00
|
|
|
|
2021-02-12 12:08:14 +08:00
|
|
|
#ifdef RT_USING_POSIX
|
2021-02-12 01:30:41 +08:00
|
|
|
static struct timeval _timevalue;
|
|
|
|
static int clock_time_system_init()
|
|
|
|
{
|
|
|
|
time_t time;
|
|
|
|
rt_tick_t tick;
|
|
|
|
rt_device_t device;
|
|
|
|
|
|
|
|
time = 0;
|
2021-07-05 11:34:11 +08:00
|
|
|
|
|
|
|
#ifdef RT_USING_RTC
|
2021-02-12 01:30:41 +08:00
|
|
|
device = rt_device_find("rtc");
|
|
|
|
if (device != RT_NULL)
|
|
|
|
{
|
|
|
|
/* get realtime seconds */
|
|
|
|
rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time);
|
|
|
|
}
|
2021-07-05 11:34:11 +08:00
|
|
|
#else
|
|
|
|
LOG_W("Cannot find a RTC device to provide time!");
|
|
|
|
#endif
|
2021-02-12 01:30:41 +08:00
|
|
|
|
|
|
|
/* get tick */
|
|
|
|
tick = rt_tick_get();
|
|
|
|
|
|
|
|
_timevalue.tv_usec = (tick%RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK;
|
|
|
|
_timevalue.tv_sec = time - tick/RT_TICK_PER_SECOND - 1;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
INIT_COMPONENT_EXPORT(clock_time_system_init);
|
|
|
|
|
|
|
|
int clock_getres(clockid_t clockid, struct timespec *res)
|
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
if (res == RT_NULL)
|
|
|
|
{
|
|
|
|
rt_set_errno(EINVAL);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (clockid)
|
|
|
|
{
|
|
|
|
case CLOCK_REALTIME:
|
|
|
|
res->tv_sec = 0;
|
|
|
|
res->tv_nsec = NANOSECOND_PER_SECOND/RT_TICK_PER_SECOND;
|
|
|
|
break;
|
|
|
|
|
|
|
|
#ifdef RT_USING_CPUTIME
|
|
|
|
case CLOCK_CPUTIME_ID:
|
|
|
|
res->tv_sec = 0;
|
|
|
|
res->tv_nsec = clock_cpu_getres();
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
default:
|
|
|
|
ret = -1;
|
|
|
|
rt_set_errno(EINVAL);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
RTM_EXPORT(clock_getres);
|
|
|
|
|
|
|
|
int clock_gettime(clockid_t clockid, struct timespec *tp)
|
|
|
|
{
|
|
|
|
int ret = 0;
|
|
|
|
|
|
|
|
if (tp == RT_NULL)
|
|
|
|
{
|
|
|
|
rt_set_errno(EINVAL);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (clockid)
|
|
|
|
{
|
|
|
|
case CLOCK_REALTIME:
|
|
|
|
{
|
|
|
|
/* get tick */
|
|
|
|
int tick = rt_tick_get();
|
|
|
|
|
|
|
|
tp->tv_sec = _timevalue.tv_sec + tick / RT_TICK_PER_SECOND;
|
|
|
|
tp->tv_nsec = (_timevalue.tv_usec + (tick % RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK) * 1000;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
#ifdef RT_USING_CPUTIME
|
|
|
|
case CLOCK_CPUTIME_ID:
|
|
|
|
{
|
|
|
|
float unit = 0;
|
|
|
|
long long cpu_tick;
|
|
|
|
|
|
|
|
unit = clock_cpu_getres();
|
|
|
|
cpu_tick = clock_cpu_gettime();
|
|
|
|
|
|
|
|
tp->tv_sec = ((int)(cpu_tick * unit)) / NANOSECOND_PER_SECOND;
|
|
|
|
tp->tv_nsec = ((int)(cpu_tick * unit)) % NANOSECOND_PER_SECOND;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
default:
|
|
|
|
rt_set_errno(EINVAL);
|
|
|
|
ret = -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
RTM_EXPORT(clock_gettime);
|
|
|
|
|
|
|
|
int clock_settime(clockid_t clockid, const struct timespec *tp)
|
|
|
|
{
|
|
|
|
int second;
|
|
|
|
rt_tick_t tick;
|
|
|
|
rt_device_t device;
|
|
|
|
|
|
|
|
if ((clockid != CLOCK_REALTIME) || (tp == RT_NULL))
|
|
|
|
{
|
|
|
|
rt_set_errno(EINVAL);
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* get second */
|
|
|
|
second = tp->tv_sec;
|
|
|
|
/* get tick */
|
|
|
|
tick = rt_tick_get();
|
|
|
|
|
|
|
|
/* update timevalue */
|
|
|
|
_timevalue.tv_usec = MICROSECOND_PER_SECOND - (tick % RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK;
|
|
|
|
_timevalue.tv_sec = second - tick/RT_TICK_PER_SECOND - 1;
|
|
|
|
|
2021-07-05 11:34:11 +08:00
|
|
|
#ifdef RT_USING_RTC
|
2021-02-12 01:30:41 +08:00
|
|
|
/* update for RTC device */
|
|
|
|
device = rt_device_find("rtc");
|
|
|
|
if (device != RT_NULL)
|
|
|
|
{
|
|
|
|
/* set realtime seconds */
|
|
|
|
rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &second);
|
|
|
|
}
|
|
|
|
else
|
2021-07-05 11:34:11 +08:00
|
|
|
#else
|
|
|
|
LOG_W("Cannot find a RTC device to save time!");
|
|
|
|
#endif
|
2021-02-12 01:30:41 +08:00
|
|
|
return -1;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
RTM_EXPORT(clock_settime);
|
2021-02-12 20:36:17 +08:00
|
|
|
|
|
|
|
int clock_time_to_tick(const struct timespec *time)
|
|
|
|
{
|
|
|
|
int tick;
|
|
|
|
int nsecond, second;
|
|
|
|
struct timespec tp;
|
|
|
|
|
|
|
|
RT_ASSERT(time != RT_NULL);
|
|
|
|
|
|
|
|
tick = RT_WAITING_FOREVER;
|
|
|
|
if (time != NULL)
|
|
|
|
{
|
|
|
|
/* get current tp */
|
|
|
|
clock_gettime(CLOCK_REALTIME, &tp);
|
|
|
|
|
|
|
|
if ((time->tv_nsec - tp.tv_nsec) < 0)
|
|
|
|
{
|
|
|
|
nsecond = NANOSECOND_PER_SECOND - (tp.tv_nsec - time->tv_nsec);
|
|
|
|
second = time->tv_sec - tp.tv_sec - 1;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
nsecond = time->tv_nsec - tp.tv_nsec;
|
|
|
|
second = time->tv_sec - tp.tv_sec;
|
|
|
|
}
|
|
|
|
|
|
|
|
tick = second * RT_TICK_PER_SECOND + nsecond * RT_TICK_PER_SECOND / NANOSECOND_PER_SECOND;
|
|
|
|
if (tick < 0) tick = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return tick;
|
|
|
|
}
|
|
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RTM_EXPORT(clock_time_to_tick);
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2021-02-12 12:08:14 +08:00
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#endif /* RT_USING_POSIX */
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2021-07-18 14:34:35 +08:00
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/* timezone APIs (Not standard LIBC APIs) */
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#ifndef RT_LIBC_DEFAULT_TIMEZONE
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#define RT_LIBC_DEFAULT_TIMEZONE 8
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#endif
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#include <rthw.h>
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volatile static rt_int8_t rt_current_timezone = RT_LIBC_DEFAULT_TIMEZONE;
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void rt_tz_set(rt_int8_t tz)
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{
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register rt_base_t level;
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level = rt_hw_interrupt_disable();
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rt_current_timezone = tz;
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rt_hw_interrupt_enable(level);
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}
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rt_int8_t rt_tz_get(void)
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{
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return rt_current_timezone;
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}
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rt_int8_t rt_tz_is_dst(void)
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{
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return 0;
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}
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