diff --git a/components/libc/compilers/armlibc/sys/time.h b/components/libc/compilers/armlibc/sys/time.h index e5751cfa3d6a039f291987bc7ecc0d04fe383c82..bac122e183f2922c3f3c029fb5f81644743345a6 100644 --- a/components/libc/compilers/armlibc/sys/time.h +++ b/components/libc/compilers/armlibc/sys/time.h @@ -45,6 +45,7 @@ struct timezone { }; int gettimeofday(struct timeval *tp, void *ignore); +struct tm *gmtime_r(const time_t *timep, struct tm *r); #ifdef __cplusplus } diff --git a/components/libc/compilers/common/SConscript b/components/libc/compilers/common/SConscript new file mode 100644 index 0000000000000000000000000000000000000000..02bf49941d9643ea2680c837cd5a3e470efb9722 --- /dev/null +++ b/components/libc/compilers/common/SConscript @@ -0,0 +1,12 @@ +from building import * + +Import('rtconfig') + +src = Glob('*.c') +cwd = GetCurrentDir() +group = [] +CPPPATH = [cwd] + +group = DefineGroup('libc', src, depend = ['RT_USING_LIBC'], CPPPATH = CPPPATH) + +Return('group') diff --git a/components/libc/compilers/common/gmtime_r.c b/components/libc/compilers/common/gmtime_r.c new file mode 100644 index 0000000000000000000000000000000000000000..dff251ab6cafe9939c3098dd5de84370d6f1a65e --- /dev/null +++ b/components/libc/compilers/common/gmtime_r.c @@ -0,0 +1,88 @@ +/* + * Copyright (c) 2006-2018, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2018-10-26 zylx first version + */ + +#if defined(__CC_ARM) || defined(__CLANG_ARM) || defined (__IAR_SYSTEMS_ICC__) +#include + +/* seconds per day */ +#define SPD 24*60*60 + +/* days per month -- nonleap! */ +const short __spm[13] = +{ + 0, + (31), + (31 + 28), + (31 + 28 + 31), + (31 + 28 + 31 + 30), + (31 + 28 + 31 + 30 + 31), + (31 + 28 + 31 + 30 + 31 + 30), + (31 + 28 + 31 + 30 + 31 + 30 + 31), + (31 + 28 + 31 + 30 + 31 + 30 + 31 + 31), + (31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30), + (31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31), + (31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30), + (31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31), +}; + +int __isleap(int year) +{ + /* every fourth year is a leap year except for century years that are + * not divisible by 400. */ + /* return (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)); */ + return (!(year % 4) && ((year % 100) || !(year % 400))); +} + +/** + * This function will convert Time (Restartable) + * + * @param timep the timestamp + * @param the structure to stores information + * + * @return the structure to stores information + * + */ +struct tm *gmtime_r(const time_t *timep, struct tm *r) +{ + time_t i; + register time_t work = *timep % (SPD); + r->tm_sec = work % 60; + work /= 60; + r->tm_min = work % 60; + r->tm_hour = work / 60; + work = *timep / (SPD); + r->tm_wday = (4 + work) % 7; + for (i = 1970;; ++i) + { + register time_t k = __isleap(i) ? 366 : 365; + if (work >= k) + work -= k; + else + break; + } + r->tm_year = i - 1900; + r->tm_yday = work; + + r->tm_mday = 1; + if (__isleap(i) && (work > 58)) + { + if (work == 59) + r->tm_mday = 2; /* 29.2. */ + work -= 1; + } + + for (i = 11; i && (__spm[i] > work); --i) + ; + r->tm_mon = i; + r->tm_mday += work - __spm[i]; + return r; +} +#endif /* end of __CC_ARM or __CLANG_ARM or __IAR_SYSTEMS_ICC__ */ + diff --git a/components/libc/compilers/dlib/sys/time.h b/components/libc/compilers/dlib/sys/time.h index 766d219fafe32c4343a9a044c7d4dc7cff124c9e..baf566936b0ec55f4c06fb68b8109ea8c01c9d70 100644 --- a/components/libc/compilers/dlib/sys/time.h +++ b/components/libc/compilers/dlib/sys/time.h @@ -52,6 +52,7 @@ struct timezone { }; int gettimeofday(struct timeval *tp, void *ignore); +struct tm *gmtime_r(const time_t *timep, struct tm *r); #ifdef __cplusplus }