kopia lustrzana https://github.com/micropython/micropython
237 wiersze
8.9 KiB
C
237 wiersze
8.9 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013-2023 Damien P. George
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* Copyright (c) 2016 Paul Sokolovsky
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/mphal.h"
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#include "py/runtime.h"
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#include "py/smallint.h"
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#include "extmod/modtime.h"
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#if MICROPY_PY_TIME
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#ifdef MICROPY_PY_TIME_INCLUDEFILE
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#include MICROPY_PY_TIME_INCLUDEFILE
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#endif
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#if MICROPY_PY_TIME_GMTIME_LOCALTIME_MKTIME
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#include "shared/timeutils/timeutils.h"
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// localtime([secs])
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// Convert a time expressed in seconds since the Epoch into an 8-tuple which
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// contains: (year, month, mday, hour, minute, second, weekday, yearday)
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// If secs is not provided or None, then the current time is used.
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// - year is the full year, eg 2000
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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 time_localtime(size_t n_args, const mp_obj_t *args) {
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if (n_args == 0 || args[0] == mp_const_none) {
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// Get current date and time.
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return mp_time_localtime_get();
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} else {
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// Convert given seconds to tuple.
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mp_int_t seconds = mp_obj_get_int(args[0]);
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timeutils_struct_time_t tm;
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timeutils_seconds_since_epoch_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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}
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MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_time_localtime_obj, 0, 1, time_localtime);
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// mktime()
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// This is the inverse function of localtime. Its 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 the Epoch (eg 1st Jan 1970, or 1st Jan 2000).
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static mp_obj_t time_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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mp_raise_TypeError(MP_ERROR_TEXT("mktime needs a tuple of length 8 or 9"));
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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_time_mktime_obj, time_mktime);
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#endif // MICROPY_PY_TIME_GMTIME_LOCALTIME_MKTIME
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#if MICROPY_PY_TIME_TIME_TIME_NS
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// time()
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// Return the number of seconds since the Epoch.
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static mp_obj_t time_time(void) {
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return mp_time_time_get();
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}
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static MP_DEFINE_CONST_FUN_OBJ_0(mp_time_time_obj, time_time);
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// time_ns()
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// Returns the number of nanoseconds since the Epoch, as an integer.
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static mp_obj_t time_time_ns(void) {
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return mp_obj_new_int_from_ull(mp_hal_time_ns());
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}
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MP_DEFINE_CONST_FUN_OBJ_0(mp_time_time_ns_obj, time_time_ns);
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#endif // MICROPY_PY_TIME_TIME_TIME_NS
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static mp_obj_t time_sleep(mp_obj_t seconds_o) {
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#ifdef MICROPY_PY_TIME_CUSTOM_SLEEP
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mp_time_sleep(seconds_o);
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#else
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#if MICROPY_PY_BUILTINS_FLOAT
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mp_hal_delay_ms((mp_uint_t)(1000 * mp_obj_get_float(seconds_o)));
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#else
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mp_hal_delay_ms(1000 * mp_obj_get_int(seconds_o));
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#endif
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#endif
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_1(mp_time_sleep_obj, time_sleep);
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static mp_obj_t time_sleep_ms(mp_obj_t arg) {
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mp_int_t ms = mp_obj_get_int(arg);
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if (ms >= 0) {
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mp_hal_delay_ms(ms);
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}
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_1(mp_time_sleep_ms_obj, time_sleep_ms);
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static mp_obj_t time_sleep_us(mp_obj_t arg) {
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mp_int_t us = mp_obj_get_int(arg);
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if (us > 0) {
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mp_hal_delay_us(us);
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}
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_1(mp_time_sleep_us_obj, time_sleep_us);
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static mp_obj_t time_ticks_ms(void) {
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return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_ms() & (MICROPY_PY_TIME_TICKS_PERIOD - 1));
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}
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MP_DEFINE_CONST_FUN_OBJ_0(mp_time_ticks_ms_obj, time_ticks_ms);
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static mp_obj_t time_ticks_us(void) {
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return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_us() & (MICROPY_PY_TIME_TICKS_PERIOD - 1));
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}
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MP_DEFINE_CONST_FUN_OBJ_0(mp_time_ticks_us_obj, time_ticks_us);
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static mp_obj_t time_ticks_cpu(void) {
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return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_cpu() & (MICROPY_PY_TIME_TICKS_PERIOD - 1));
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}
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MP_DEFINE_CONST_FUN_OBJ_0(mp_time_ticks_cpu_obj, time_ticks_cpu);
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static mp_obj_t time_ticks_diff(mp_obj_t end_in, mp_obj_t start_in) {
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// we assume that the arguments come from ticks_xx so are small ints
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mp_uint_t start = MP_OBJ_SMALL_INT_VALUE(start_in);
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mp_uint_t end = MP_OBJ_SMALL_INT_VALUE(end_in);
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// Optimized formula avoiding if conditions. We adjust difference "forward",
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// wrap it around and adjust back.
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mp_int_t diff = ((end - start + MICROPY_PY_TIME_TICKS_PERIOD / 2) & (MICROPY_PY_TIME_TICKS_PERIOD - 1))
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- MICROPY_PY_TIME_TICKS_PERIOD / 2;
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return MP_OBJ_NEW_SMALL_INT(diff);
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}
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MP_DEFINE_CONST_FUN_OBJ_2(mp_time_ticks_diff_obj, time_ticks_diff);
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static mp_obj_t time_ticks_add(mp_obj_t ticks_in, mp_obj_t delta_in) {
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// we assume that first argument come from ticks_xx so is small int
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mp_uint_t ticks = MP_OBJ_SMALL_INT_VALUE(ticks_in);
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mp_uint_t delta = mp_obj_get_int(delta_in);
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// Check that delta does not overflow the range that ticks_diff can handle.
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// This ensures the following:
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// - ticks_diff(ticks_add(T, delta), T) == delta
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// - ticks_diff(T, ticks_add(T, delta)) == -delta
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// The latter requires excluding delta=-TICKS_PERIOD/2.
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//
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// This unsigned comparison is equivalent to a signed comparison of:
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// delta <= -TICKS_PERIOD/2 || delta >= TICKS_PERIOD/2
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if (delta + MICROPY_PY_TIME_TICKS_PERIOD / 2 - 1 >= MICROPY_PY_TIME_TICKS_PERIOD - 1) {
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mp_raise_msg(&mp_type_OverflowError, MP_ERROR_TEXT("ticks interval overflow"));
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}
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return MP_OBJ_NEW_SMALL_INT((ticks + delta) & (MICROPY_PY_TIME_TICKS_PERIOD - 1));
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}
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MP_DEFINE_CONST_FUN_OBJ_2(mp_time_ticks_add_obj, time_ticks_add);
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static const mp_rom_map_elem_t mp_module_time_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_time) },
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#if MICROPY_PY_TIME_GMTIME_LOCALTIME_MKTIME
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{ MP_ROM_QSTR(MP_QSTR_gmtime), MP_ROM_PTR(&mp_time_localtime_obj) },
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{ MP_ROM_QSTR(MP_QSTR_localtime), MP_ROM_PTR(&mp_time_localtime_obj) },
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{ MP_ROM_QSTR(MP_QSTR_mktime), MP_ROM_PTR(&mp_time_mktime_obj) },
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#endif
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#if MICROPY_PY_TIME_TIME_TIME_NS
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{ MP_ROM_QSTR(MP_QSTR_time), MP_ROM_PTR(&mp_time_time_obj) },
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{ MP_ROM_QSTR(MP_QSTR_time_ns), MP_ROM_PTR(&mp_time_time_ns_obj) },
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#endif
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{ MP_ROM_QSTR(MP_QSTR_sleep), MP_ROM_PTR(&mp_time_sleep_obj) },
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{ MP_ROM_QSTR(MP_QSTR_sleep_ms), MP_ROM_PTR(&mp_time_sleep_ms_obj) },
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{ MP_ROM_QSTR(MP_QSTR_sleep_us), MP_ROM_PTR(&mp_time_sleep_us_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ticks_ms), MP_ROM_PTR(&mp_time_ticks_ms_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ticks_us), MP_ROM_PTR(&mp_time_ticks_us_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ticks_cpu), MP_ROM_PTR(&mp_time_ticks_cpu_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ticks_add), MP_ROM_PTR(&mp_time_ticks_add_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ticks_diff), MP_ROM_PTR(&mp_time_ticks_diff_obj) },
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#ifdef MICROPY_PY_TIME_EXTRA_GLOBALS
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MICROPY_PY_TIME_EXTRA_GLOBALS
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#endif
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};
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static MP_DEFINE_CONST_DICT(mp_module_time_globals, mp_module_time_globals_table);
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const mp_obj_module_t mp_module_time = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t *)&mp_module_time_globals,
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};
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MP_REGISTER_EXTENSIBLE_MODULE(MP_QSTR_time, mp_module_time);
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#endif // MICROPY_PY_TIME
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