modtime.c

/*
 * 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"
#include "extmod/utime_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;