diff --git a/stmhal/modtime.c b/stmhal/modtime.c index f6bde274ff01177736e9ca6246977dfe30c76465..bbcb2a5fd61b861a8ef9e9024d020556c95cdcf9 100644 --- a/stmhal/modtime.c +++ b/stmhal/modtime.c @@ -36,21 +36,6 @@ #include "portmodules.h" #include "rtc.h" -#define DAYS_PER_400Y (365*400 + 97) -#define DAYS_PER_100Y (365*100 + 24) -#define DAYS_PER_4Y (365*4 + 1) - -typedef struct { - uint16_t tm_year; // i.e. 2014 - uint8_t tm_mon; // 1..12 - uint8_t tm_mday; // 1..31 - uint8_t tm_hour; // 0..23 - uint8_t tm_min; // 0..59 - uint8_t tm_sec; // 0..59 - uint8_t tm_wday; // 0..6 0 = Monday - uint16_t tm_yday; // 1..366 -} mod_struct_time; - /// \module time - time related functions /// /// The `time` module provides functions for getting the current time and date, @@ -63,7 +48,7 @@ STATIC bool is_leap_year(mp_uint_t year) { } // Month is one based -STATIC mp_uint_t days_in_month(mp_uint_t year, mp_uint_t month) { +STATIC mp_uint_t mod_time_days_in_month(mp_uint_t year, mp_uint_t month) { mp_uint_t mdays = days_since_jan1[month] - days_since_jan1[month - 1]; if (month == 2 && is_leap_year(year)) { mdays++; @@ -73,7 +58,7 @@ STATIC mp_uint_t days_in_month(mp_uint_t year, mp_uint_t month) { // compute the day of the year, between 1 and 366 // month should be between 1 and 12, date should start at 1 -mp_uint_t mod_time_year_day(mp_uint_t year, mp_uint_t month, mp_uint_t date) { +STATIC mp_uint_t mod_time_year_day(mp_uint_t year, mp_uint_t month, mp_uint_t date) { mp_uint_t yday = days_since_jan1[month - 1] + date; if (month >= 3 && is_leap_year(year)) { yday += 1; @@ -102,11 +87,24 @@ mp_uint_t mod_time_seconds_since_2000(mp_uint_t year, mp_uint_t month, mp_uint_t #define LEAPOCH ((31 + 29) * 86400) -void mod_time_seconds_since_2000_to_struct_time(mp_uint_t t, mod_struct_time *tm) { - memset(tm, 0, sizeof(*tm)); +#define DAYS_PER_400Y (365*400 + 97) +#define DAYS_PER_100Y (365*100 + 24) +#define DAYS_PER_4Y (365*4 + 1) + +typedef struct { + uint16_t tm_year; // i.e. 2014 + uint8_t tm_mon; // 1..12 + uint8_t tm_mday; // 1..31 + uint8_t tm_hour; // 0..23 + uint8_t tm_min; // 0..59 + uint8_t tm_sec; // 0..59 + uint8_t tm_wday; // 0..6 0 = Monday + uint16_t tm_yday; // 1..366 +} mod_struct_time; +STATIC void mod_time_seconds_since_2000_to_struct_time(mp_uint_t t, mod_struct_time *tm) { // The following algorithm was adapted from musl's __secs_to_tm and adapted - // for differences in MicroPython's timebase. + // for differences in Micro Python's timebase. mp_int_t seconds = t - LEAPOCH; @@ -146,6 +144,7 @@ void mod_time_seconds_since_2000_to_struct_time(mp_uint_t t, mod_struct_time *tm } days -= (years * 365); + /* We will compute tm_yday at the very end mp_int_t leap = !years && (q_cycles || !c_cycles); tm->tm_yday = days + 31 + 28 + leap; @@ -153,10 +152,13 @@ void mod_time_seconds_since_2000_to_struct_time(mp_uint_t t, mod_struct_time *tm tm->tm_yday -= 365 + leap; } + tm->tm_yday++; // Make one based + */ + tm->tm_year = 2000 + years + 4 * q_cycles + 100 * c_cycles + 400 * qc_cycles; // Note: days_in_month[0] corresponds to March - static const int8_t days_in_month[] = {31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 31, 29}; + STATIC const int8_t days_in_month[] = {31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 31, 29}; mp_int_t month; for (month = 0; days_in_month[month] <= days; month++) { @@ -170,9 +172,9 @@ void mod_time_seconds_since_2000_to_struct_time(mp_uint_t t, mod_struct_time *tm } tm->tm_mday = days + 1; // Make one based tm->tm_mon++; // Make one based - tm->tm_yday++; // Make one based -} + tm->tm_yday = mod_time_year_day(tm->tm_year, tm->tm_mon, tm->tm_mday); +} /// \function localtime([secs]) /// Convert a time expressed in seconds since Jan 1, 2000 into an 8-tuple which @@ -205,22 +207,22 @@ STATIC mp_obj_t time_localtime(uint n_args, const mp_obj_t *args) { mp_obj_new_int(mod_time_year_day(2000 + date.Year, date.Month, date.Date)), }; return mp_obj_new_tuple(8, tuple); + } else { + mp_int_t seconds = mp_obj_get_int(args[0]); + mod_struct_time tm; + mod_time_seconds_since_2000_to_struct_time(seconds, &tm); + mp_obj_t tuple[8] = { + tuple[0] = mp_obj_new_int(tm.tm_year), + tuple[1] = mp_obj_new_int(tm.tm_mon), + tuple[2] = mp_obj_new_int(tm.tm_mday), + tuple[3] = mp_obj_new_int(tm.tm_hour), + tuple[4] = mp_obj_new_int(tm.tm_min), + tuple[5] = mp_obj_new_int(tm.tm_sec), + tuple[6] = mp_obj_new_int(tm.tm_wday), + tuple[7] = mp_obj_new_int(tm.tm_yday), + }; + return mp_obj_new_tuple(8, tuple); } - - mp_int_t seconds = mp_obj_get_int(args[0]); - mod_struct_time tm; - mod_time_seconds_since_2000_to_struct_time(seconds, &tm); - mp_obj_t tuple[8] = { - mp_obj_new_int(tm.tm_year), - mp_obj_new_int(tm.tm_mon), - mp_obj_new_int(tm.tm_mday), - mp_obj_new_int(tm.tm_hour), - mp_obj_new_int(tm.tm_min), - mp_obj_new_int(tm.tm_sec), - mp_obj_new_int(tm.tm_wday), - mp_obj_new_int(tm.tm_yday), - }; - return mp_obj_new_tuple(8, tuple); } MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(time_localtime_obj, 0, 1, time_localtime); @@ -248,12 +250,12 @@ STATIC mp_obj_t time_mktime(mp_obj_t tuple) { mp_int_t minutes = mp_obj_get_int(elem[4]); mp_int_t seconds = mp_obj_get_int(elem[5]); - // Normalize the tuple. This allows things like: + // Normalise the tuple. This allows things like: // // tm_tomorrow = list(time.localtime()) // tm_tomorrow[2] += 1 # Adds 1 to mday // tomorrow = time.mktime(tm_tommorrow) - // + // // And not have to worry about all the weird overflows. // // You can subtract dates/times this way as well. @@ -289,10 +291,10 @@ STATIC mp_obj_t time_mktime(mp_obj_t tuple) { month = 12; year--; } - mday += days_in_month(year, month); + mday += mod_time_days_in_month(year, month); } - while (mday > days_in_month(year, month)) { - mday -= days_in_month(year, month); + while (mday > mod_time_days_in_month(year, month)) { + mday -= mod_time_days_in_month(year, month); if (++month == 13) { month = 1; year++; diff --git a/stmhal/portmodules.h b/stmhal/portmodules.h index d8a3d8f879ca1cd92f4260c20a2508fcaeda4e11..491df6bc49cd8fdcc2f17ec42fa0b4ba48cca086 100644 --- a/stmhal/portmodules.h +++ b/stmhal/portmodules.h @@ -31,5 +31,4 @@ extern const mp_obj_module_t time_module; // additional helper functions exported by the modules -mp_uint_t mod_time_year_day(mp_uint_t year, mp_uint_t month, mp_uint_t date); mp_uint_t mod_time_seconds_since_2000(mp_uint_t year, mp_uint_t month, mp_uint_t date, mp_uint_t hour, mp_uint_t minute, mp_uint_t second); diff --git a/tests/pyb/modtime.py b/tests/pyb/modtime.py new file mode 100644 index 0000000000000000000000000000000000000000..de6f8fbc6b2169c9a57b2d2352f6574d3d620721 --- /dev/null +++ b/tests/pyb/modtime.py @@ -0,0 +1,38 @@ +import time + +DAYS_PER_MONTH = [0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] + +def is_leap(year): + return (year % 4) == 0 + +def test(): + seconds = 0 + wday = 5 # Jan 1, 2000 was a Saturday + for year in range(2000, 2034): + print("Testing %d" % year) + yday = 1 + for month in range(1, 13): + if month == 2 and is_leap(year): + DAYS_PER_MONTH[2] = 29 + else: + DAYS_PER_MONTH[2] = 28 + for day in range(1, DAYS_PER_MONTH[month] + 1): + secs = time.mktime((year, month, day, 0, 0, 0, 0, 0)) + if secs != seconds: + print("mktime failed for %d-%02d-%02d got %d expected %d" % (year, month, day, secs, seconds)) + tuple = time.localtime(seconds) + secs = time.mktime(tuple) + if secs != seconds: + print("localtime failed for %d-%02d-%02d got %d expected %d" % (year, month, day, secs, seconds)) + return + seconds += 86400 + if yday != tuple[7]: + print("locatime for %d-%02d-%02d got yday %d, expecting %d" % (year, month, day, tuple[7], yday)) + return + if wday != tuple[6]: + print("locatime for %d-%02d-%02d got wday %d, expecting %d" % (year, month, day, tuple[6], wday)) + return + yday += 1 + wday = (wday + 1) % 7 + +test() diff --git a/tests/pyb/modtime.py.exp b/tests/pyb/modtime.py.exp new file mode 100644 index 0000000000000000000000000000000000000000..0bf7c43f9812d28664e1f55806cc09aefeb6b893 --- /dev/null +++ b/tests/pyb/modtime.py.exp @@ -0,0 +1,34 @@ +Testing 2000 +Testing 2001 +Testing 2002 +Testing 2003 +Testing 2004 +Testing 2005 +Testing 2006 +Testing 2007 +Testing 2008 +Testing 2009 +Testing 2010 +Testing 2011 +Testing 2012 +Testing 2013 +Testing 2014 +Testing 2015 +Testing 2016 +Testing 2017 +Testing 2018 +Testing 2019 +Testing 2020 +Testing 2021 +Testing 2022 +Testing 2023 +Testing 2024 +Testing 2025 +Testing 2026 +Testing 2027 +Testing 2028 +Testing 2029 +Testing 2030 +Testing 2031 +Testing 2032 +Testing 2033