diff options
Diffstat (limited to 'src/core/hle/service/time/time_zone_manager.cpp')
| -rw-r--r-- | src/core/hle/service/time/time_zone_manager.cpp | 150 |
1 files changed, 143 insertions, 7 deletions
diff --git a/src/core/hle/service/time/time_zone_manager.cpp b/src/core/hle/service/time/time_zone_manager.cpp index 973f7837a..e1728c06d 100644 --- a/src/core/hle/service/time/time_zone_manager.cpp +++ b/src/core/hle/service/time/time_zone_manager.cpp @@ -2,6 +2,7 @@ // SPDX-License-Identifier: GPL-2.0-or-later #include <climits> +#include <limits> #include "common/assert.h" #include "common/logging/log.h" @@ -9,6 +10,7 @@ #include "core/file_sys/nca_metadata.h" #include "core/file_sys/registered_cache.h" #include "core/hle/service/time/time_zone_manager.h" +#include "core/hle/service/time/time_zone_types.h" namespace Service::Time::TimeZone { @@ -128,10 +130,10 @@ static constexpr int GetQZName(const char* name, int offset, char delimiter) { } static constexpr int GetTZName(const char* name, int offset) { - for (char value{name[offset]}; - value != '\0' && !IsDigit(value) && value != ',' && value != '-' && value != '+'; - offset++) { - value = name[offset]; + char c; + + while ((c = name[offset]) != '\0' && !IsDigit(c) && c != ',' && c != '-' && c != '+') { + ++offset; } return offset; } @@ -147,6 +149,7 @@ static constexpr bool GetInteger(const char* name, int& offset, int& value, int if (value > max) { return {}; } + offset++; temp = name[offset]; } while (IsDigit(temp)); @@ -471,6 +474,13 @@ static bool ParsePosixName(const char* name, TimeZoneRule& rule) { their_std_offset = their_offset; } } + + if (rule.time_count > 0) { + UNIMPLEMENTED(); + // TODO (lat9nq): Implement eggert/tz/localtime.c:tzparse:1329 + // Seems to be unused in yuzu for now: I never hit the UNIMPLEMENTED in testing + } + rule.ttis[0].gmt_offset = -std_offset; rule.ttis[0].is_dst = false; rule.ttis[0].abbreviation_list_index = 0; @@ -514,6 +524,7 @@ static bool ParseTimeZoneBinary(TimeZoneRule& time_zone_rule, FileSys::VirtualFi constexpr s32 time_zone_max_leaps{50}; constexpr s32 time_zone_max_chars{50}; + constexpr s32 time_zone_max_times{1000}; if (!(0 <= header.leap_count && header.leap_count < time_zone_max_leaps && 0 < header.type_count && header.type_count < s32(time_zone_rule.ttis.size()) && 0 <= header.time_count && header.time_count < s32(time_zone_rule.ats.size()) && @@ -546,7 +557,7 @@ static bool ParseTimeZoneBinary(TimeZoneRule& time_zone_rule, FileSys::VirtualFi for (int index{}; index < time_zone_rule.time_count; ++index) { const u8 type{*vfs_file->ReadByte(read_offset)}; read_offset += sizeof(u8); - if (time_zone_rule.time_count <= type) { + if (time_zone_rule.type_count <= type) { return {}; } if (time_zone_rule.types[index] != 0) { @@ -624,16 +635,109 @@ static bool ParseTimeZoneBinary(TimeZoneRule& time_zone_rule, FileSys::VirtualFi std::array<char, time_zone_name_max> name{}; std::memcpy(name.data(), temp_name.data() + 1, std::size_t(bytes_read - 1)); + // Fill in computed transition times with temp rule TimeZoneRule temp_rule; if (ParsePosixName(name.data(), temp_rule)) { - UNIMPLEMENTED(); + int have_abbreviation = 0; + int char_count = time_zone_rule.char_count; + + for (int i = 0; i < temp_rule.type_count; i++) { + char* temp_abbreviation = + temp_rule.chars.data() + temp_rule.ttis[i].abbreviation_list_index; + int j; + for (j = 0; j < char_count; j++) { + if (std::strcmp(time_zone_rule.chars.data() + j, temp_abbreviation) == 0) { + temp_rule.ttis[i].abbreviation_list_index = j; + have_abbreviation++; + break; + } + } + if (j >= char_count) { + int temp_abbreviation_length = static_cast<int>(std::strlen(temp_abbreviation)); + if (j + temp_abbreviation_length < time_zone_max_chars) { + std::strcpy(time_zone_rule.chars.data() + j, temp_abbreviation); + char_count = j + temp_abbreviation_length + 1; + temp_rule.ttis[i].abbreviation_list_index = j; + have_abbreviation++; + } + } + } + + if (have_abbreviation == temp_rule.type_count) { + time_zone_rule.char_count = char_count; + + // Original comment: + /* Ignore any trailing, no-op transitions generated + by zic as they don't help here and can run afoul + of bugs in zic 2016j or earlier. */ + // This is possibly unnecessary for yuzu, since Nintendo doesn't run zic + while (1 < time_zone_rule.time_count && + (time_zone_rule.types[time_zone_rule.time_count - 1] == + time_zone_rule.types[time_zone_rule.time_count - 2])) { + time_zone_rule.time_count--; + } + + for (int i = 0; + i < temp_rule.time_count && time_zone_rule.time_count < time_zone_max_times; + i++) { + const s64 transition_time = temp_rule.ats[i]; + if (0 < time_zone_rule.time_count && + transition_time <= time_zone_rule.ats[time_zone_rule.time_count - 1]) { + continue; + } + + time_zone_rule.ats[time_zone_rule.time_count] = transition_time; + time_zone_rule.types[time_zone_rule.time_count] = + static_cast<s8>(time_zone_rule.type_count + temp_rule.types[i]); + time_zone_rule.time_count++; + } + for (int i = 0; i < temp_rule.type_count; i++) { + time_zone_rule.ttis[time_zone_rule.type_count++] = temp_rule.ttis[i]; + } + } } } + + const auto typesequiv = [](TimeZoneRule& rule, int a, int b) -> bool { + if (a < 0 || a >= rule.type_count || b < 0 || b >= rule.type_count) { + return {}; + } + + const struct TimeTypeInfo* ap = &rule.ttis[a]; + const struct TimeTypeInfo* bp = &rule.ttis[b]; + + return (ap->gmt_offset == bp->gmt_offset && ap->is_dst == bp->is_dst && + (std::strcmp(&rule.chars[ap->abbreviation_list_index], + &rule.chars[bp->abbreviation_list_index]) == 0)); + }; + if (time_zone_rule.type_count == 0) { return {}; } if (time_zone_rule.time_count > 1) { - UNIMPLEMENTED(); + if (time_zone_rule.ats[0] <= std::numeric_limits<s64>::max() - seconds_per_repeat) { + s64 repeatat = time_zone_rule.ats[0] + seconds_per_repeat; + int repeatattype = time_zone_rule.types[0]; + for (int i = 1; i < time_zone_rule.time_count; ++i) { + if (time_zone_rule.ats[i] == repeatat && + typesequiv(time_zone_rule, time_zone_rule.types[i], repeatattype)) { + time_zone_rule.go_back = true; + break; + } + } + } + if (std::numeric_limits<s64>::min() + seconds_per_repeat <= + time_zone_rule.ats[time_zone_rule.time_count - 1]) { + s64 repeatat = time_zone_rule.ats[time_zone_rule.time_count - 1] - seconds_per_repeat; + int repeatattype = time_zone_rule.types[time_zone_rule.time_count - 1]; + for (int i = time_zone_rule.time_count; i >= 0; --i) { + if (time_zone_rule.ats[i] == repeatat && + typesequiv(time_zone_rule, time_zone_rule.types[i], repeatattype)) { + time_zone_rule.go_ahead = true; + break; + } + } + } } s32 default_type{}; @@ -1038,4 +1142,36 @@ Result TimeZoneManager::GetDeviceLocationName(LocationName& value) const { return ResultSuccess; } +Result TimeZoneManager::GetTotalLocationNameCount(s32& count) const { + if (!is_initialized) { + return ERROR_UNINITIALIZED_CLOCK; + } + count = static_cast<u32>(total_location_name_count); + + return ResultSuccess; +} + +Result TimeZoneManager::GetTimeZoneRuleVersion(u128& version) const { + if (!is_initialized) { + return ERROR_UNINITIALIZED_CLOCK; + } + version = time_zone_rule_version; + + return ResultSuccess; +} + +Result TimeZoneManager::LoadLocationNameList(std::vector<LocationName>& values) const { + if (!is_initialized) { + return ERROR_UNINITIALIZED_CLOCK; + } + + for (const auto& name : total_location_names) { + LocationName entry{}; + std::memcpy(entry.data(), name.c_str(), name.size()); + values.push_back(entry); + } + + return ResultSuccess; +} + } // namespace Service::Time::TimeZone |