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timelib_private.h
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timelib_private.h
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/*
* The MIT License (MIT)
*
* Copyright (c) 2015-2019 Derick Rethans
*
* 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.
*/
#ifndef __TIMELIB_PRIVATE_H__
#define __TIMELIB_PRIVATE_H__
#ifdef HAVE_TIMELIB_CONFIG_H
# include "timelib_config.h"
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef _WIN32
# ifdef HAVE_WINSOCK2_H
# include <winsock2.h>
# endif
#endif
#include <string.h>
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <stdint.h>
#if defined(HAVE_UNISTD_H)
# include <unistd.h>
#endif
#if defined(HAVE_IO_H)
# include <io.h>
#endif
#if defined(HAVE_DIRENT_H)
# include <dirent.h>
#endif
#include <stdio.h>
#include <limits.h>
#define TIMELIB_SECOND 1
#define TIMELIB_MINUTE 2
#define TIMELIB_HOUR 3
#define TIMELIB_DAY 4
#define TIMELIB_MONTH 5
#define TIMELIB_YEAR 6
#define TIMELIB_WEEKDAY 7
#define TIMELIB_SPECIAL 8
#define TIMELIB_MICROSEC 9
#define TIMELIB_SPECIAL_WEEKDAY 0x01
#define TIMELIB_SPECIAL_DAY_OF_WEEK_IN_MONTH 0x02
#define TIMELIB_SPECIAL_LAST_DAY_OF_WEEK_IN_MONTH 0x03
#define TIMELIB_SPECIAL_FIRST_DAY_OF_MONTH 0x01
#define TIMELIB_SPECIAL_LAST_DAY_OF_MONTH 0x02
#define TIMELIB_TIME_PART_DONT_KEEP 0x00
#define TIMELIB_TIME_PART_KEEP 0x01
#define MINS_PER_HOUR 60
#define SECS_PER_ERA TIMELIB_LL_CONST(12622780800)
#define SECS_PER_DAY 86400
#define SECS_PER_HOUR 3600
#define USECS_PER_HOUR TIMELIB_LL_CONST(3600000000)
#define DAYS_PER_WEEK 7
#define DAYS_PER_YEAR 365
#define DAYS_PER_LYEAR 366
#define MONTHS_PER_YEAR 12
/* 400*365 days + 97 leap days */
#define DAYS_PER_ERA 146097
#define YEARS_PER_ERA 400
#define HINNANT_EPOCH_SHIFT 719468 /* 0000-03-01 instead of 1970-01-01 */
#define TIMELIB_TZINFO_PHP 0x01
#define TIMELIB_TZINFO_ZONEINFO 0x02
#define timelib_is_leap(y) ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0))
#define TIMELIB_DEBUG(s) if (0) { s }
#define TIMELIB_TIME_FREE(m) \
if (m) { \
timelib_free(m); \
m = NULL; \
}
#if defined (__GNUC__)
# define TIMELIB_GNUC_CHECK_VERSION(major, minor) \
((__GNUC__ > (major)) || \
((__GNUC__ == (major)) && (__GNUC_MINOR__ >= (minor))))
#else
# define TIMELIB_GNUC_CHECK_VERSION(major, minor) 0
#endif
#if TIMELIB_GNUC_CHECK_VERSION(7, 0)
# define TIMELIB_BREAK_INTENTIONALLY_MISSING __attribute__ ((fallthrough));
#else
# define TIMELIB_BREAK_INTENTIONALLY_MISSING
#endif
#if defined(__has_builtin)
# if __has_builtin(__builtin_saddll_overflow)
# define TIMELIB_HAVE_BUILTIN_SADDLL_OVERFLOW 1
# endif
#endif
#ifndef TIMELIB_HAVE_BUILTIN_SADDLL_OVERFLOW
# define TIMELIB_HAVE_BUILTIN_SADDLL_OVERFLOW 0
#endif
struct _ttinfo
{
int32_t offset;
int isdst;
unsigned int abbr_idx;
unsigned int isstdcnt;
unsigned int isgmtcnt;
};
struct _tlinfo
{
int64_t trans;
int32_t offset;
};
#ifndef LONG_MAX
#define LONG_MAX 2147483647L
#endif
#ifndef LONG_MIN
#define LONG_MIN (- LONG_MAX - 1)
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* From unixtime2tm.c */
int timelib_apply_localtime(timelib_time *t, unsigned int localtime);
/* From parse_posix.c */
timelib_sll timelib_ts_at_start_of_year(timelib_sll year);
ttinfo* timelib_fetch_posix_timezone_offset(timelib_tzinfo *tz, timelib_sll ts, timelib_sll *transition_time);
/* From parse_tz.c */
void timelib_time_tz_abbr_update(timelib_time* tm, const char* tz_abbr);
ttinfo* timelib_fetch_timezone_offset(timelib_tzinfo *tz, timelib_sll ts, timelib_sll *transition_time);
/* From timelib.c */
int timelib_strcasecmp(const char *s1, const char *s2);
int timelib_strncasecmp(const char *s1, const char *s2, size_t n);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif