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/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "py/mpconfig.h"
#if MICROPY_PY_UTIME
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <time.h>
#include <sys/time.h>
#include <math.h>
#include "py/runtime.h"
#include "py/smallint.h"
#include "py/mphal.h"
#ifdef _WIN32
static inline int msec_sleep_tv(struct timeval *tv) {
msec_sleep(tv->tv_sec * 1000.0 + tv->tv_usec / 1000.0);
return 0;
}
#define sleep_select(a,b,c,d,e) msec_sleep_tv((e))
#else
#define sleep_select select
#endif
// mingw32 defines CLOCKS_PER_SEC as ((clock_t)<somevalue>) but preprocessor does not handle casts
#if defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR)
#define MP_REMOVE_BRACKETSA(x)
#define MP_REMOVE_BRACKETSB(x) MP_REMOVE_BRACKETSA x
#define MP_REMOVE_BRACKETSC(x) MP_REMOVE_BRACKETSB x
#define MP_CLOCKS_PER_SEC MP_REMOVE_BRACKETSC(CLOCKS_PER_SEC)
#else
#define MP_CLOCKS_PER_SEC CLOCKS_PER_SEC
#endif
#if defined(MP_CLOCKS_PER_SEC)
#define CLOCK_DIV (MP_CLOCKS_PER_SEC / 1000.0F)
#else
#error Unsupported clock() implementation
#endif
STATIC mp_obj_t mod_time_time(void) {
#if MICROPY_PY_BUILTINS_FLOAT
struct timeval tv;
gettimeofday(&tv, NULL);
mp_float_t val = tv.tv_sec + (mp_float_t)tv.tv_usec / 1000000;
return mp_obj_new_float(val);
#else
return mp_obj_new_int((mp_int_t)time(NULL));
#endif
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_time_time_obj, mod_time_time);
STATIC mp_obj_t mod_time_ticks_us(void) {
struct timeval tv;
gettimeofday(&tv, NULL);
mp_uint_t us = tv.tv_sec * 1000000 + tv.tv_usec;
return MP_OBJ_NEW_SMALL_INT(us & MP_SMALL_INT_POSITIVE_MASK);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_time_ticks_us_obj, mod_time_ticks_us);
STATIC mp_obj_t mod_time_ticks_ms(void) {
struct timeval tv;
gettimeofday(&tv, NULL);
mp_uint_t ms = tv.tv_sec * 1000 + tv.tv_usec / 1000;
return MP_OBJ_NEW_SMALL_INT(ms & MP_SMALL_INT_POSITIVE_MASK);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_time_ticks_ms_obj, mod_time_ticks_ms);
STATIC mp_obj_t mod_time_ticks_diff(mp_obj_t oldval, mp_obj_t newval) {
mp_uint_t old = MP_OBJ_SMALL_INT_VALUE(oldval);
mp_uint_t new = MP_OBJ_SMALL_INT_VALUE(newval);
return MP_OBJ_NEW_SMALL_INT((new - old) & MP_SMALL_INT_POSITIVE_MASK);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_2(mod_time_ticks_diff_obj, mod_time_ticks_diff);
// Note: this is deprecated since CPy3.3, but pystone still uses it.
STATIC mp_obj_t mod_time_clock(void) {
#if MICROPY_PY_BUILTINS_FLOAT
// float cannot represent full range of int32 precisely, so we pre-divide
// int to reduce resolution, and then actually do float division hoping
// to preserve integer part resolution.
return mp_obj_new_float((float)(clock() / 1000) / CLOCK_DIV);
#else
return mp_obj_new_int((mp_int_t)clock());
#endif
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(mod_time_clock_obj, mod_time_clock);
STATIC mp_obj_t mod_time_sleep(mp_obj_t arg) {
#if MICROPY_PY_BUILTINS_FLOAT
struct timeval tv;
mp_float_t val = mp_obj_get_float(arg);
double ipart;
tv.tv_usec = round(modf(val, &ipart) * 1000000);
tv.tv_sec = ipart;
int res;
while (1) {
MP_THREAD_GIL_EXIT();
res = sleep_select(0, NULL, NULL, NULL, &tv);
MP_THREAD_GIL_ENTER();
#if MICROPY_SELECT_REMAINING_TIME
// TODO: This assumes Linux behavior of modifying tv to the remaining
// time.
if (res != -1 || errno != EINTR) {
break;
}
if (MP_STATE_VM(mp_pending_exception) != MP_OBJ_NULL) {
return mp_const_none;
}
//printf("select: EINTR: %ld:%ld\n", tv.tv_sec, tv.tv_usec);
#else
break;
#endif
}
RAISE_ERRNO(res, errno);
#else
// TODO: Handle EINTR
MP_THREAD_GIL_EXIT();
sleep(mp_obj_get_int(arg));
MP_THREAD_GIL_ENTER();
#endif
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_time_sleep_obj, mod_time_sleep);
STATIC mp_obj_t mod_time_sleep_ms(mp_obj_t arg) {
MP_THREAD_GIL_EXIT();
usleep(mp_obj_get_int(arg) * 1000);
MP_THREAD_GIL_ENTER();
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_time_sleep_ms_obj, mod_time_sleep_ms);
STATIC mp_obj_t mod_time_sleep_us(mp_obj_t arg) {
MP_THREAD_GIL_EXIT();
usleep(mp_obj_get_int(arg));
MP_THREAD_GIL_ENTER();
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mod_time_sleep_us_obj, mod_time_sleep_us);
STATIC mp_obj_t mod_time_strftime(size_t n_args, const mp_obj_t *args) {
time_t t;
if (n_args == 1) {
t = time(NULL);
} else {
// CPython requires passing struct tm, but we allow to pass time_t
// (and don't support struct tm so far).
t = mp_obj_get_int(args[1]);
}
struct tm *tm = localtime(&t);
char buf[32];
size_t sz = strftime(buf, sizeof(buf), mp_obj_str_get_str(args[0]), tm);
return mp_obj_new_str(buf, sz, false);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_time_strftime_obj, 1, 2, mod_time_strftime);
STATIC const mp_rom_map_elem_t mp_module_time_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_utime) },
{ MP_ROM_QSTR(MP_QSTR_clock), MP_ROM_PTR(&mod_time_clock_obj) },
{ MP_ROM_QSTR(MP_QSTR_sleep), MP_ROM_PTR(&mod_time_sleep_obj) },
{ MP_ROM_QSTR(MP_QSTR_sleep_ms), MP_ROM_PTR(&mod_time_sleep_ms_obj) },
{ MP_ROM_QSTR(MP_QSTR_sleep_us), MP_ROM_PTR(&mod_time_sleep_us_obj) },
{ MP_ROM_QSTR(MP_QSTR_time), MP_ROM_PTR(&mod_time_time_obj) },
{ MP_ROM_QSTR(MP_QSTR_ticks_ms), MP_ROM_PTR(&mod_time_ticks_ms_obj) },
{ MP_ROM_QSTR(MP_QSTR_ticks_us), MP_ROM_PTR(&mod_time_ticks_us_obj) },
{ MP_ROM_QSTR(MP_QSTR_ticks_diff), MP_ROM_PTR(&mod_time_ticks_diff_obj) },
{ MP_ROM_QSTR(MP_QSTR_strftime), MP_ROM_PTR(&mod_time_strftime_obj) },
};
STATIC MP_DEFINE_CONST_DICT(mp_module_time_globals, mp_module_time_globals_table);
const mp_obj_module_t mp_module_time = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t*)&mp_module_time_globals,
};
#endif // MICROPY_PY_UTIME