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revert time()

This commit is contained in:
Meco Man 2021-02-08 10:33:12 +08:00
parent 6c7dd30532
commit d0c2631b12
1 changed files with 15 additions and 6 deletions
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15
components/libc/compilers/common/time.c
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@ -8,7 +8,7 @@
* 2019-08-21 zhangjun copy from minilibc * 2019-08-21 zhangjun copy from minilibc
* 2020-09-07 Meco Man combine gcc armcc iccarm * 2020-09-07 Meco Man combine gcc armcc iccarm
* 2021-02-05 Meco Man add timegm() * 2021-02-05 Meco Man add timegm()
* 2021-02-07 Meco Man fixed gettimeofday() time() * 2021-02-07 Meco Man fixed gettimeofday()
* 2021-02-08 Meco Man add settimeofday() stime() * 2021-02-08 Meco Man add settimeofday() stime()
*/ */
@ -177,16 +177,25 @@ time_t time(time_t *t)
#endif #endif
{ {
time_t time_now = 0; time_t time_now = 0;
#ifdef RT_USING_RTC #ifdef RT_USING_RTC
rt_device_t device; static rt_device_t device = RT_NULL;
/* optimization: find rtc device only first. */
if (device == RT_NULL)
{
device = rt_device_find("rtc");
}
/* read timestamp from RTC device. */ /* read timestamp from RTC device. */
device = rt_device_find("rtc"); if (device != RT_NULL)
{
if (rt_device_open(device, 0) == RT_EOK) if (rt_device_open(device, 0) == RT_EOK)
{ {
rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time_now); rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time_now);
rt_device_close(device); rt_device_close(device);
} }
}
#endif /* RT_USING_RTC */ #endif /* RT_USING_RTC */
/* if t is not NULL, write timestamp to *t */ /* if t is not NULL, write timestamp to *t */