diff options
Diffstat (limited to 'components/libc/compilers/common/time.c')
| -rw-r--r-- | components/libc/compilers/common/time.c | 51 |
1 files changed, 43 insertions, 8 deletions
diff --git a/components/libc/compilers/common/time.c b/components/libc/compilers/common/time.c index 9996212444..8f4856a330 100644 --- a/components/libc/compilers/common/time.c +++ b/components/libc/compilers/common/time.c @@ -18,9 +18,11 @@ * 2021-02-12 Meco Man move all of the functions located in <clock_time.c> to this file * 2021-03-15 Meco Man fixed a bug of leaking memory in asctime() * 2021-05-01 Meco Man support fixed timezone + * 2021-07-21 Meco Man implement that change/set timezone APIs */ #include "sys/time.h" +#include <sys/errno.h> #include <rtthread.h> #ifdef RT_USING_DEVICE @@ -31,10 +33,6 @@ #define DBG_LVL DBG_INFO #include <rtdbg.h> -#ifndef RT_LIBC_FIXED_TIMEZONE -#define RT_LIBC_FIXED_TIMEZONE 8 /* UTC+8 */ -#endif - /* seconds per day */ #define SPD 24*60*60 @@ -201,7 +199,7 @@ struct tm *gmtime_r(const time_t *timep, struct tm *r) r->tm_mon = i; r->tm_mday += work - __spm[i]; - r->tm_isdst = 0; + r->tm_isdst = rt_tz_is_dst(); return r; } RTM_EXPORT(gmtime_r); @@ -217,7 +215,7 @@ struct tm* localtime_r(const time_t* t, struct tm* r) { time_t local_tz; - local_tz = *t + RT_LIBC_FIXED_TIMEZONE * 3600; + local_tz = *t + rt_tz_get() * 3600; return gmtime_r(&local_tz, r); } RTM_EXPORT(localtime_r); @@ -234,7 +232,7 @@ time_t mktime(struct tm * const t) time_t timestamp; timestamp = timegm(t); - timestamp = timestamp - 3600 * RT_LIBC_FIXED_TIMEZONE; + timestamp = timestamp - 3600 * rt_tz_get(); return timestamp; } RTM_EXPORT(mktime); @@ -425,7 +423,7 @@ int gettimeofday(struct timeval *tv, struct timezone *tz) if(tz != RT_NULL) { tz->tz_dsttime = DST_NONE; - tz->tz_minuteswest = -(RT_LIBC_FIXED_TIMEZONE * 60); + tz->tz_minuteswest = -(rt_tz_get() * 60); } if (tv != RT_NULL && get_timeval(tv) == RT_EOK) @@ -475,12 +473,17 @@ static int clock_time_system_init() rt_device_t device; time = 0; + +#ifdef RT_USING_RTC device = rt_device_find("rtc"); if (device != RT_NULL) { /* get realtime seconds */ rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time); } +#else + LOG_W("Cannot find a RTC device to provide time!"); +#endif /* get tick */ tick = rt_tick_get(); @@ -593,6 +596,7 @@ int clock_settime(clockid_t clockid, const struct timespec *tp) _timevalue.tv_usec = MICROSECOND_PER_SECOND - (tick % RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK; _timevalue.tv_sec = second - tick/RT_TICK_PER_SECOND - 1; +#ifdef RT_USING_RTC /* update for RTC device */ device = rt_device_find("rtc"); if (device != RT_NULL) @@ -601,6 +605,9 @@ int clock_settime(clockid_t clockid, const struct timespec *tp) rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &second); } else +#else + LOG_W("Cannot find a RTC device to save time!"); +#endif return -1; return 0; @@ -641,3 +648,31 @@ int clock_time_to_tick(const struct timespec *time) RTM_EXPORT(clock_time_to_tick); #endif /* RT_USING_POSIX */ + + +/* timezone APIs (Not standard LIBC APIs) */ +#ifndef RT_LIBC_DEFAULT_TIMEZONE +#define RT_LIBC_DEFAULT_TIMEZONE 8 +#endif + +#include <rthw.h> + +volatile static rt_int8_t rt_current_timezone = RT_LIBC_DEFAULT_TIMEZONE; + +void rt_tz_set(rt_int8_t tz) +{ + register rt_base_t level; + level = rt_hw_interrupt_disable(); + rt_current_timezone = tz; + rt_hw_interrupt_enable(level); +} + +rt_int8_t rt_tz_get(void) +{ + return rt_current_timezone; +} + +rt_int8_t rt_tz_is_dst(void) +{ + return 0; +} |