nrf: utime: Add localtime and mktime calls
Currently the nrf port doesn't implement a proper RTC (it exposes raw RTCounters instead) but it is still useful to implement localtime() and mktime() (although the argument to localtime becomes mandatory).pull/1/head
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@ -30,6 +30,7 @@
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#include "py/nlr.h"
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#include "py/smallint.h"
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#include "py/obj.h"
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#include "lib/timeutils/timeutils.h"
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#include "extmod/utime_mphal.h"
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/// \module time - time related functions
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@ -37,9 +38,63 @@
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/// The `time` module provides functions for getting the current time and date,
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/// and for sleeping.
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/// \function localtime(secs)
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/// Convert a time expressed in seconds since Jan 1, 2000 into an 8-tuple which
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/// contains: (year, month, mday, hour, minute, second, weekday, yearday)
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/// year includes the century (for example 2014)
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/// month is 1-12
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/// mday is 1-31
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/// hour is 0-23
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/// minute is 0-59
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/// second is 0-59
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/// weekday is 0-6 for Mon-Sun.
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/// yearday is 1-366
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STATIC mp_obj_t mp_utime_localtime(mp_obj_t secs) {
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mp_int_t seconds = mp_obj_get_int(secs);
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timeutils_struct_time_t tm;
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timeutils_seconds_since_2000_to_struct_time(seconds, &tm);
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mp_obj_t tuple[8] = {
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tuple[0] = mp_obj_new_int(tm.tm_year),
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tuple[1] = mp_obj_new_int(tm.tm_mon),
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tuple[2] = mp_obj_new_int(tm.tm_mday),
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tuple[3] = mp_obj_new_int(tm.tm_hour),
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tuple[4] = mp_obj_new_int(tm.tm_min),
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tuple[5] = mp_obj_new_int(tm.tm_sec),
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tuple[6] = mp_obj_new_int(tm.tm_wday),
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tuple[7] = mp_obj_new_int(tm.tm_yday),
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};
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return mp_obj_new_tuple(8, tuple);
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}
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MP_DEFINE_CONST_FUN_OBJ_1(mp_utime_localtime_obj, mp_utime_localtime);
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/// \function mktime()
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/// This is inverse function of localtime. It's argument is a full 8-tuple
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/// which expresses a time as per localtime. It returns an integer which is
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/// the number of seconds since Jan 1, 2000.
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STATIC mp_obj_t mp_utime_mktime(mp_obj_t tuple) {
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size_t len;
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mp_obj_t *elem;
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mp_obj_get_array(tuple, &len, &elem);
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// localtime generates a tuple of len 8. CPython uses 9, so we accept both.
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if (len < 8 || len > 9) {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "mktime needs a tuple of length 8 or 9 (%d given)", len));
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}
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return mp_obj_new_int_from_uint(timeutils_mktime(mp_obj_get_int(elem[0]),
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mp_obj_get_int(elem[1]), mp_obj_get_int(elem[2]), mp_obj_get_int(elem[3]),
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mp_obj_get_int(elem[4]), mp_obj_get_int(elem[5])));
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}
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MP_DEFINE_CONST_FUN_OBJ_1(mp_utime_mktime_obj, mp_utime_mktime);
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STATIC const mp_rom_map_elem_t time_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_utime) },
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{ MP_ROM_QSTR(MP_QSTR_localtime), MP_ROM_PTR(&mp_utime_localtime_obj) },
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{ MP_ROM_QSTR(MP_QSTR_mktime), MP_ROM_PTR(&mp_utime_mktime_obj) },
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{ MP_ROM_QSTR(MP_QSTR_sleep), MP_ROM_PTR(&mp_utime_sleep_obj) },
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{ MP_ROM_QSTR(MP_QSTR_sleep_ms), MP_ROM_PTR(&mp_utime_sleep_ms_obj) },
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{ MP_ROM_QSTR(MP_QSTR_sleep_us), MP_ROM_PTR(&mp_utime_sleep_us_obj) },
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