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Merge pull request #4880 from mysterywolf/tz 

[libc][time] 修复若干问题
This commit is contained in:
Bernard Xiong 2021-07-31 08:29:22 +08:00 committed by GitHub
parent 7de647c726 2589d24532
commit c3dab99463
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 81 additions and 62 deletions
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42
components/libc/compilers/common/sys/time.h
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@ -19,6 +19,7 @@
extern "C" {
#endif
/* timezone */
#define DST_NONE 0 /* not on dst */
#define DST_USA 1 /* USA style dst */
#define DST_AUST 2 /* Australian style dst */
@ -31,12 +32,21 @@ extern "C" {
#define DST_TUR 9 /* Turkey */
#define DST_AUSTALT 10 /* Australian style with shift in 1986 */
#ifndef _TIMEVAL_DEFINED
#define _TIMEVAL_DEFINED
struct timezone {
int tz_minuteswest; /* minutes west of Greenwich */
int tz_dsttime; /* type of dst correction */
};
void rt_tz_set(rt_int8_t tz);
rt_int8_t rt_tz_get(void);
rt_int8_t rt_tz_is_dst(void);
/*
* Structure returned by gettimeofday(2) system call,
* and used in other calls.
*/
#ifndef _TIMEVAL_DEFINED
#define _TIMEVAL_DEFINED
#if !(defined(_WIN32))
struct timeval {
long tv_sec; /* seconds */
@ -45,18 +55,6 @@ struct timeval {
#endif
#endif /* _TIMEVAL_DEFINED */
#if !(defined(__GNUC__) && !defined(__ARMCC_VERSION)/*GCC*/) && !(defined(__ICCARM__) && (__VER__ >= 8010001)) && !defined(_WIN32)
struct timespec {
time_t tv_sec; /* seconds */
long tv_nsec; /* and nanoseconds */
};
#endif
struct timezone {
int tz_minuteswest; /* minutes west of Greenwich */
int tz_dsttime; /* type of dst correction */
};
int stime(const time_t *t);
time_t timegm(struct tm * const t);
int gettimeofday(struct timeval *tv, struct timezone *tz);
@ -67,6 +65,14 @@ struct tm *gmtime_r(const time_t *timep, struct tm *r);
#ifdef RT_USING_POSIX
#include <sys/types.h>
#if !(defined(__GNUC__) && !defined(__ARMCC_VERSION)/*GCC*/) && !(defined(__ICCARM__) && (__VER__ >= 8010001)) && !defined(_WIN32)
struct timespec {
time_t tv_sec; /* seconds */
long tv_nsec; /* and nanoseconds */
};
#endif
/* posix clock and timer */
#define MILLISECOND_PER_SECOND 1000UL
#define MICROSECOND_PER_SECOND 1000000UL
@ -96,15 +102,9 @@ struct tm *gmtime_r(const time_t *timep, struct tm *r);
int clock_getres (clockid_t clockid, struct timespec *res);
int clock_gettime (clockid_t clockid, struct timespec *tp);
int clock_settime (clockid_t clockid, const struct timespec *tp);
int clock_time_to_tick(const struct timespec *time);
int rt_timespec_to_tick(const struct timespec *time);
#endif /* RT_USING_POSIX */
/* timezone APIs (Not standard LIBC APIs) */
void rt_tz_set(rt_int8_t tz);
rt_int8_t rt_tz_get(void);
rt_int8_t rt_tz_is_dst(void);
#ifdef __cplusplus
}
#endif

95
components/libc/compilers/common/time.c
View File

@ -24,7 +24,7 @@
#include "sys/time.h"
#include <sys/errno.h>
#include <rtthread.h>
#include <rthw.h>
#ifdef RT_USING_DEVICE
#include <rtdevice.h>
#endif
@ -465,38 +465,47 @@ RTM_EXPORT(difftime);
RTM_EXPORT(strftime);
#ifdef RT_USING_POSIX
static struct timeval _timevalue;
static int clock_time_system_init()
#ifdef RT_USING_RTC
static volatile struct timeval _timevalue;
static int _rt_clock_time_system_init()
{
time_t time;
register rt_base_t level;
time_t time = 0;
rt_tick_t tick;
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();
if(rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time) == RT_EOK)
{
level = rt_hw_interrupt_disable();
tick = rt_tick_get(); /* get tick */
_timevalue.tv_usec = (tick%RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK;
_timevalue.tv_sec = time - tick/RT_TICK_PER_SECOND - 1;
rt_hw_interrupt_enable(level);
return 0;
}
}
level = rt_hw_interrupt_disable();
_timevalue.tv_usec = 0;
_timevalue.tv_sec = 0;
rt_hw_interrupt_enable(level);
return -1;
}
INIT_COMPONENT_EXPORT(clock_time_system_init);
INIT_COMPONENT_EXPORT(_rt_clock_time_system_init);
#endif /* RT_USING_RTC */
int clock_getres(clockid_t clockid, struct timespec *res)
{
#ifndef RT_USING_RTC
LOG_W("Cannot find a RTC device to save time!");
return -1;
#else
int ret = 0;
if (res == RT_NULL)
@ -526,11 +535,16 @@ int clock_getres(clockid_t clockid, struct timespec *res)
}
return ret;
#endif /* RT_USING_RTC */
}
RTM_EXPORT(clock_getres);
int clock_gettime(clockid_t clockid, struct timespec *tp)
{
#ifndef RT_USING_RTC
LOG_W("Cannot find a RTC device to save time!");
return -1;
#else
int ret = 0;
if (tp == RT_NULL)
@ -543,11 +557,14 @@ int clock_gettime(clockid_t clockid, struct timespec *tp)
{
case CLOCK_REALTIME:
{
/* get tick */
int tick = rt_tick_get();
int tick;
register rt_base_t level;
level = rt_hw_interrupt_disable();
tick = rt_tick_get(); /* get tick */
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;
rt_hw_interrupt_enable(level);
}
break;
@ -571,11 +588,17 @@ int clock_gettime(clockid_t clockid, struct timespec *tp)
}
return ret;
#endif /* RT_USING_RTC */
}
RTM_EXPORT(clock_gettime);
int clock_settime(clockid_t clockid, const struct timespec *tp)
{
#ifndef RT_USING_RTC
LOG_W("Cannot find a RTC device to save time!");
return -1;
#else
register rt_base_t level;
int second;
rt_tick_t tick;
rt_device_t device;
@ -583,38 +606,36 @@ int clock_settime(clockid_t clockid, const struct timespec *tp)
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();
level = rt_hw_interrupt_disable();
tick = rt_tick_get(); /* get tick */
/* 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;
rt_hw_interrupt_enable(level);
#ifdef RT_USING_RTC
/* 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
#else
LOG_W("Cannot find a RTC device to save time!");
#endif
return -1;
if(rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &second) == RT_EOK)
{
return 0;
}
}
return -1;
#endif /* RT_USING_RTC */
}
RTM_EXPORT(clock_settime);
int clock_time_to_tick(const struct timespec *time)
int rt_timespec_to_tick(const struct timespec *time)
{
int tick;
int nsecond, second;
@ -645,19 +666,17 @@ int clock_time_to_tick(const struct timespec *time)
return tick;
}
RTM_EXPORT(clock_time_to_tick);
RTM_EXPORT(rt_timespec_to_tick);
#endif /* RT_USING_POSIX */
/* timezone APIs (Not standard LIBC APIs) */
/* timezone */
#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;
static volatile rt_int8_t rt_current_timezone = RT_LIBC_DEFAULT_TIMEZONE;
void rt_tz_set(rt_int8_t tz)
{

2
components/libc/pthreads/mqueue.c
View File

@ -244,7 +244,7 @@ ssize_t mq_timedreceive(mqd_t mqdes,
return -1;
}
tick = clock_time_to_tick(abs_timeout);
tick = rt_timespec_to_tick(abs_timeout);
result = rt_mq_recv(mqdes->mq, msg_ptr, msg_len, tick);
if (result == RT_EOK)

2
components/libc/pthreads/pthread_cond.c
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@ -222,7 +222,7 @@ int pthread_cond_timedwait(pthread_cond_t *cond,
int timeout;
rt_err_t result;
timeout = clock_time_to_tick(abstime);
timeout = rt_timespec_to_tick(abstime);
result = _pthread_cond_timedwait(cond, mutex, timeout);
if (result == RT_EOK)
return 0;

2
components/libc/pthreads/semaphore.c
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@ -319,7 +319,7 @@ int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout)
return EINVAL;
/* calculate os tick */
tick = clock_time_to_tick(abs_timeout);
tick = rt_timespec_to_tick(abs_timeout);
result = rt_sem_take(sem->sem, tick);
if (result == -RT_ETIMEOUT)

2
components/libc/signal/posix_signal.c
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@ -83,7 +83,7 @@ int sigtimedwait(const sigset_t *set, siginfo_t *info,
if (timeout)
{
tick = clock_time_to_tick(timeout);
tick = rt_timespec_to_tick(timeout);
}
ret = rt_signal_wait(set, info, tick);