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add errno

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This commit is contained in:
Meco Man 2021-02-11 20:48:30 +08:00
parent dd147925e5
commit ce4fabe158
1 changed files with 14 additions and 2 deletions
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16
components/libc/compilers/common/time.c
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@ -13,6 +13,7 @@
* 2021-02-10 Meco Man add ctime_r() and re-implement ctime() * 2021-02-10 Meco Man add ctime_r() and re-implement ctime()
* 2021-02-11 Meco Man fix bug #3183 - align days[] and months[] to 4 bytes * 2021-02-11 Meco Man fix bug #3183 - align days[] and months[] to 4 bytes
* add difftime() * add difftime()
* 2021-02-12 Meco Man add errno
*/ */
#include <sys/time.h> #include <sys/time.h>
@ -208,6 +209,11 @@ RT_WEAK time_t time(time_t *t)
*t = time_now; *t = time_now;
} }
if(time_now == (time_t)-1)
{
errno = ENOSYS;
}
return time_now; return time_now;
} }
@ -230,11 +236,13 @@ int stime(const time_t *t)
} }
else else
{ {
errno = ENOSYS;
return -1; return -1;
} }
return 0; return 0;
#else #else
errno = ENOSYS;
return -1; return -1;
#endif /* RT_USING_RTC */ #endif /* RT_USING_RTC */
} }
@ -316,14 +324,17 @@ time_t timegm(struct tm * const t)
/* TODO: timezone */ /* TODO: timezone */
int gettimeofday(struct timeval *tv, struct timezone *tz) int gettimeofday(struct timeval *tv, struct timezone *tz)
{ {
if (tv != RT_NULL) time_t t = time(RT_NULL);
if (tv != RT_NULL && t != (time_t)-1)
{ {
tv->tv_sec = time(RT_NULL); tv->tv_sec = t;
tv->tv_usec = 0; tv->tv_usec = 0;
return 0; return 0;
} }
else else
{ {
errno = ENOSYS;
return -1; return -1;
} }
} }
@ -337,6 +348,7 @@ int settimeofday(const struct timeval *tv, const struct timezone *tz)
} }
else else
{ {
errno = ENOSYS;
return -1; return -1;
} }
} }