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81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
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// SPDX-FileCopyrightText: 1996 Arthur David Olson
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// SPDX-License-Identifier: BSD-2-Clause
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#pragma once
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#include <cstdint>
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#include <limits>
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#include <span>
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#include <array>
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#include <time.h>
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namespace Tz {
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using u8 = uint8_t;
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using s8 = int8_t;
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using u16 = uint16_t;
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using s16 = int16_t;
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using u32 = uint32_t;
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using s32 = int32_t;
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using u64 = uint64_t;
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using s64 = int64_t;
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constexpr size_t TZ_MAX_TIMES = 1000;
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constexpr size_t TZ_MAX_TYPES = 128;
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constexpr size_t TZ_MAX_CHARS = 50;
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constexpr size_t MY_TZNAME_MAX = 255;
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constexpr size_t TZNAME_MAXIMUM = 255;
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constexpr size_t TZ_MAX_LEAPS = 50;
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constexpr s64 TIME_T_MAX = std::numeric_limits<s64>::max();
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constexpr s64 TIME_T_MIN = std::numeric_limits<s64>::min();
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constexpr size_t CHARS_EXTRA = 3;
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constexpr size_t MAX_ZONE_CHARS = std::max(TZ_MAX_CHARS + CHARS_EXTRA, sizeof("UTC"));
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constexpr size_t MAX_TZNAME_CHARS = 2 * (MY_TZNAME_MAX + 1);
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struct ttinfo {
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s32 tt_utoff;
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bool tt_isdst;
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s32 tt_desigidx;
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bool tt_ttisstd;
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bool tt_ttisut;
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};
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static_assert(sizeof(ttinfo) == 0x10, "ttinfo has the wrong size!");
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struct Rule {
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s32 timecnt;
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s32 typecnt;
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s32 charcnt;
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bool goback;
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bool goahead;
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std::array <u8, 0x2> padding0;
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std::array<s64, TZ_MAX_TIMES> ats;
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std::array<u8, TZ_MAX_TIMES> types;
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std::array<ttinfo, TZ_MAX_TYPES> ttis;
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std::array<char, std::max(MAX_ZONE_CHARS, MAX_TZNAME_CHARS)> chars;
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s32 defaulttype;
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std::array <u8, 0x12C4> padding1;
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};
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static_assert(sizeof(Rule) == 0x4000, "Rule has the wrong size!");
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struct CalendarTimeInternal {
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s32 tm_sec;
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s32 tm_min;
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s32 tm_hour;
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s32 tm_mday;
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s32 tm_mon;
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s32 tm_year;
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s32 tm_wday;
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s32 tm_yday;
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s32 tm_isdst;
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std::array<char, 16> tm_zone;
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s32 tm_utoff;
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s32 time_index;
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};
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static_assert(sizeof(CalendarTimeInternal) == 0x3C, "CalendarTimeInternal has the wrong size!");
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s32 ParseTimeZoneBinary(Rule& out_rule, std::span<const u8> binary);
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bool localtime_rz(CalendarTimeInternal* tmp, Rule const* sp, time_t* timep);
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u32 mktime_tzname(time_t* out_time, Rule const* sp, CalendarTimeInternal* tmp);
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} // namespace Tz
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