kopia lustrzana https://github.com/micropython/micropython
236 wiersze
8.3 KiB
C
236 wiersze
8.3 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) 2014-2017 Paul Sokolovsky
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* Copyright (c) 2014-2017 Damien P. George
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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/mpconfig.h"
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#if MICROPY_PY_UTIME
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <time.h>
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#include <sys/time.h>
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#include <math.h>
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#include "py/runtime.h"
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#include "py/smallint.h"
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#include "py/mphal.h"
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#include "extmod/utime_mphal.h"
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#ifdef _WIN32
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static inline int msec_sleep_tv(struct timeval *tv) {
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msec_sleep(tv->tv_sec * 1000.0 + tv->tv_usec / 1000.0);
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return 0;
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}
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#define sleep_select(a,b,c,d,e) msec_sleep_tv((e))
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#else
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#define sleep_select select
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#endif
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// mingw32 defines CLOCKS_PER_SEC as ((clock_t)<somevalue>) but preprocessor does not handle casts
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#if defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR)
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#define MP_REMOVE_BRACKETSA(x)
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#define MP_REMOVE_BRACKETSB(x) MP_REMOVE_BRACKETSA x
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#define MP_REMOVE_BRACKETSC(x) MP_REMOVE_BRACKETSB x
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#define MP_CLOCKS_PER_SEC MP_REMOVE_BRACKETSC(CLOCKS_PER_SEC)
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#else
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#define MP_CLOCKS_PER_SEC CLOCKS_PER_SEC
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#endif
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#if defined(MP_CLOCKS_PER_SEC)
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#define CLOCK_DIV (MP_CLOCKS_PER_SEC / MICROPY_FLOAT_CONST(1000.0))
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#else
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#error Unsupported clock() implementation
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#endif
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STATIC mp_obj_t mod_time_time(void) {
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#if MICROPY_PY_BUILTINS_FLOAT
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struct timeval tv;
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gettimeofday(&tv, NULL);
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mp_float_t val = tv.tv_sec + (mp_float_t)tv.tv_usec / 1000000;
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return mp_obj_new_float(val);
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#else
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return mp_obj_new_int((mp_int_t)time(NULL));
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#endif
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_time_time_obj, mod_time_time);
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// Note: this is deprecated since CPy3.3, but pystone still uses it.
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STATIC mp_obj_t mod_time_clock(void) {
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#if MICROPY_PY_BUILTINS_FLOAT
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// float cannot represent full range of int32 precisely, so we pre-divide
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// int to reduce resolution, and then actually do float division hoping
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// to preserve integer part resolution.
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return mp_obj_new_float((clock() / 1000) / CLOCK_DIV);
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#else
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return mp_obj_new_int((mp_int_t)clock());
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#endif
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_time_clock_obj, mod_time_clock);
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STATIC mp_obj_t mod_time_sleep(mp_obj_t arg) {
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#if MICROPY_PY_BUILTINS_FLOAT
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struct timeval tv;
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mp_float_t val = mp_obj_get_float(arg);
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mp_float_t ipart;
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tv.tv_usec = (time_t)MICROPY_FLOAT_C_FUN(round)(MICROPY_FLOAT_C_FUN(modf)(val, &ipart) * MICROPY_FLOAT_CONST(1000000.));
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tv.tv_sec = (suseconds_t)ipart;
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int res;
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while (1) {
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MP_THREAD_GIL_EXIT();
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res = sleep_select(0, NULL, NULL, NULL, &tv);
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MP_THREAD_GIL_ENTER();
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#if MICROPY_SELECT_REMAINING_TIME
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// TODO: This assumes Linux behavior of modifying tv to the remaining
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// time.
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if (res != -1 || errno != EINTR) {
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break;
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}
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mp_handle_pending(true);
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// printf("select: EINTR: %ld:%ld\n", tv.tv_sec, tv.tv_usec);
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#else
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break;
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#endif
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}
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RAISE_ERRNO(res, errno);
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#else
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int seconds = mp_obj_get_int(arg);
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for (;;) {
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MP_THREAD_GIL_EXIT();
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seconds = sleep(seconds);
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MP_THREAD_GIL_ENTER();
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if (seconds == 0) {
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break;
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}
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mp_handle_pending(true);
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}
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#endif
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_time_sleep_obj, mod_time_sleep);
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STATIC mp_obj_t mod_time_gm_local_time(size_t n_args, const mp_obj_t *args, struct tm *(*time_func)(const time_t *timep)) {
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time_t t;
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if (n_args == 0) {
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t = time(NULL);
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} else {
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#if MICROPY_PY_BUILTINS_FLOAT
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mp_float_t val = mp_obj_get_float(args[0]);
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t = (time_t)MICROPY_FLOAT_C_FUN(trunc)(val);
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#else
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t = mp_obj_get_int(args[0]);
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#endif
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}
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struct tm *tm = time_func(&t);
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mp_obj_t ret = mp_obj_new_tuple(9, NULL);
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mp_obj_tuple_t *tuple = MP_OBJ_TO_PTR(ret);
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tuple->items[0] = MP_OBJ_NEW_SMALL_INT(tm->tm_year + 1900);
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tuple->items[1] = MP_OBJ_NEW_SMALL_INT(tm->tm_mon + 1);
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tuple->items[2] = MP_OBJ_NEW_SMALL_INT(tm->tm_mday);
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tuple->items[3] = MP_OBJ_NEW_SMALL_INT(tm->tm_hour);
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tuple->items[4] = MP_OBJ_NEW_SMALL_INT(tm->tm_min);
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tuple->items[5] = MP_OBJ_NEW_SMALL_INT(tm->tm_sec);
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int wday = tm->tm_wday - 1;
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if (wday < 0) {
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wday = 6;
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}
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tuple->items[6] = MP_OBJ_NEW_SMALL_INT(wday);
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tuple->items[7] = MP_OBJ_NEW_SMALL_INT(tm->tm_yday + 1);
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tuple->items[8] = MP_OBJ_NEW_SMALL_INT(tm->tm_isdst);
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return ret;
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}
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STATIC mp_obj_t mod_time_gmtime(size_t n_args, const mp_obj_t *args) {
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return mod_time_gm_local_time(n_args, args, gmtime);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_time_gmtime_obj, 0, 1, mod_time_gmtime);
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STATIC mp_obj_t mod_time_localtime(size_t n_args, const mp_obj_t *args) {
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return mod_time_gm_local_time(n_args, args, localtime);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_time_localtime_obj, 0, 1, mod_time_localtime);
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STATIC mp_obj_t mod_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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struct tm time = {
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.tm_year = mp_obj_get_int(elem[0]) - 1900,
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.tm_mon = mp_obj_get_int(elem[1]) - 1,
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.tm_mday = mp_obj_get_int(elem[2]),
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.tm_hour = mp_obj_get_int(elem[3]),
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.tm_min = mp_obj_get_int(elem[4]),
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.tm_sec = mp_obj_get_int(elem[5]),
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};
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if (len == 9) {
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time.tm_isdst = mp_obj_get_int(elem[8]);
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} else {
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time.tm_isdst = -1; // auto-detect
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}
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time_t ret = mktime(&time);
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if (ret == -1) {
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mp_raise_msg(&mp_type_OverflowError, MP_ERROR_TEXT("invalid mktime usage"));
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}
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return mp_obj_new_int(ret);
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}
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MP_DEFINE_CONST_FUN_OBJ_1(mod_time_mktime_obj, mod_time_mktime);
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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_utime) },
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{ MP_ROM_QSTR(MP_QSTR_clock), MP_ROM_PTR(&mod_time_clock_obj) },
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{ MP_ROM_QSTR(MP_QSTR_sleep), MP_ROM_PTR(&mod_time_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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{ MP_ROM_QSTR(MP_QSTR_time), MP_ROM_PTR(&mod_time_time_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ticks_ms), MP_ROM_PTR(&mp_utime_ticks_ms_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ticks_us), MP_ROM_PTR(&mp_utime_ticks_us_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ticks_cpu), MP_ROM_PTR(&mp_utime_ticks_cpu_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ticks_add), MP_ROM_PTR(&mp_utime_ticks_add_obj) },
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{ MP_ROM_QSTR(MP_QSTR_ticks_diff), MP_ROM_PTR(&mp_utime_ticks_diff_obj) },
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{ MP_ROM_QSTR(MP_QSTR_time_ns), MP_ROM_PTR(&mp_utime_time_ns_obj) },
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{ MP_ROM_QSTR(MP_QSTR_gmtime), MP_ROM_PTR(&mod_time_gmtime_obj) },
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{ MP_ROM_QSTR(MP_QSTR_localtime), MP_ROM_PTR(&mod_time_localtime_obj) },
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{ MP_ROM_QSTR(MP_QSTR_mktime), MP_ROM_PTR(&mod_time_mktime_obj) },
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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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#endif // MICROPY_PY_UTIME
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