1 files changed, 91 insertions, 0 deletions

diff --git a/src/core/hle/service/time/clock_types.h b/src/core/hle/service/time/clock_types.h
new file mode 100644
index 000000000..f2ef3ec53
--- /dev/null
+++ b/src/core/hle/service/time/clock_types.h
@@ -0,0 +1,91 @@
+// Copyright 2019 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/uuid.h"
+#include "core/hle/service/time/errors.h"
+#include "core/hle/service/time/time_zone_types.h"
+
+namespace Service::Time::Clock {
+
+/// https://switchbrew.org/wiki/Glue_services#SteadyClockTimePoint
+struct SteadyClockTimePoint {
+    s64 time_point;
+    Common::UUID clock_source_id;
+
+    static SteadyClockTimePoint GetRandom() {
+        return {0, Common::UUID::Generate()};
+    }
+};
+static_assert(sizeof(SteadyClockTimePoint) == 0x18, "SteadyClockTimePoint is incorrect size");
+static_assert(std::is_trivially_copyable_v<SteadyClockTimePoint>,
+              "SteadyClockTimePoint must be trivially copyable");
+
+struct SteadyClockContext {
+    u64 internal_offset;
+    Common::UUID steady_time_point;
+};
+static_assert(sizeof(SteadyClockContext) == 0x18, "SteadyClockContext is incorrect size");
+static_assert(std::is_trivially_copyable_v<SteadyClockContext>,
+              "SteadyClockContext must be trivially copyable");
+
+struct SystemClockContext {
+    s64 offset;
+    SteadyClockTimePoint steady_time_point;
+};
+static_assert(sizeof(SystemClockContext) == 0x20, "SystemClockContext is incorrect size");
+static_assert(std::is_trivially_copyable_v<SystemClockContext>,
+              "SystemClockContext must be trivially copyable");
+
+/// https://switchbrew.org/wiki/Glue_services#TimeSpanType
+struct TimeSpanType {
+    s64 nanoseconds{};
+    static constexpr s64 ns_per_second{1000000000ULL};
+
+    s64 ToSeconds() const {
+        return nanoseconds / ns_per_second;
+    }
+
+    static TimeSpanType FromSeconds(s64 seconds) {
+        return {seconds * ns_per_second};
+    }
+
+    static TimeSpanType FromTicks(u64 ticks, u64 frequency) {
+        return FromSeconds(static_cast<s64>(ticks) / static_cast<s64>(frequency));
+    }
+};
+static_assert(sizeof(TimeSpanType) == 8, "TimeSpanType is incorrect size");
+
+struct ClockSnapshot {
+    SystemClockContext user_context{};
+    SystemClockContext network_context{};
+    s64 user_time{};
+    s64 network_time{};
+    TimeZone::CalendarTime user_calendar_time{};
+    TimeZone::CalendarTime network_calendar_time{};
+    TimeZone::CalendarAdditionalInfo user_calendar_additional_time{};
+    TimeZone::CalendarAdditionalInfo network_calendar_additional_time{};
+    SteadyClockTimePoint steady_clock_time_point{};
+    TimeZone::LocationName location_name{};
+    u8 is_automatic_correction_enabled{};
+    u8 type{};
+    INSERT_PADDING_BYTES(0x2);
+
+    static ResultCode GetCurrentTime(s64& current_time,
+                                     const SteadyClockTimePoint& steady_clock_time_point,
+                                     const SystemClockContext& context) {
+        if (steady_clock_time_point.clock_source_id != context.steady_time_point.clock_source_id) {
+            current_time = 0;
+            return ERROR_TIME_MISMATCH;
+        }
+        current_time = steady_clock_time_point.time_point + context.offset;
+        return RESULT_SUCCESS;
+    }
+};
+static_assert(sizeof(ClockSnapshot) == 0xD0, "ClockSnapshot is incorrect size");
+
+} // namespace Service::Time::Clock