Move solution and projects to src

16 files changed, 769 insertions, 0 deletions

diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/EphemeralNetworkSystemClockContextWriter.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/EphemeralNetworkSystemClockContextWriter.cs
new file mode 100644
index 00000000..14d3cb24
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/EphemeralNetworkSystemClockContextWriter.cs
@@ -0,0 +1,10 @@
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    class EphemeralNetworkSystemClockContextWriter : SystemClockContextUpdateCallback
+    {
+        protected override ResultCode Update()
+        {
+            return ResultCode.Success;
+        }
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/EphemeralNetworkSystemClockCore.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/EphemeralNetworkSystemClockCore.cs
new file mode 100644
index 00000000..003863e4
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/EphemeralNetworkSystemClockCore.cs
@@ -0,0 +1,7 @@
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    class EphemeralNetworkSystemClockCore : SystemClockCore
+    {
+        public EphemeralNetworkSystemClockCore(SteadyClockCore steadyClockCore) : base(steadyClockCore) { }
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/LocalSystemClockContextWriter.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/LocalSystemClockContextWriter.cs
new file mode 100644
index 00000000..fb7ebdc5
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/LocalSystemClockContextWriter.cs
@@ -0,0 +1,19 @@
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    class LocalSystemClockContextWriter : SystemClockContextUpdateCallback
+    {
+        private TimeSharedMemory _sharedMemory;
+
+        public LocalSystemClockContextWriter(TimeSharedMemory sharedMemory)
+        {
+            _sharedMemory = sharedMemory;
+        }
+
+        protected override ResultCode Update()
+        {
+            _sharedMemory.UpdateLocalSystemClockContext(_context);
+
+            return ResultCode.Success;
+        }
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/NetworkSystemClockContextWriter.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/NetworkSystemClockContextWriter.cs
new file mode 100644
index 00000000..36468ec1
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/NetworkSystemClockContextWriter.cs
@@ -0,0 +1,19 @@
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    class NetworkSystemClockContextWriter : SystemClockContextUpdateCallback
+    {
+        private TimeSharedMemory _sharedMemory;
+
+        public NetworkSystemClockContextWriter(TimeSharedMemory sharedMemory)
+        {
+            _sharedMemory = sharedMemory;
+        }
+
+        protected override ResultCode Update()
+        {
+            _sharedMemory.UpdateNetworkSystemClockContext(_context);
+
+            return ResultCode.Success;
+        }
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardLocalSystemClockCore.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardLocalSystemClockCore.cs
new file mode 100644
index 00000000..20c334e8
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardLocalSystemClockCore.cs
@@ -0,0 +1,7 @@
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    class StandardLocalSystemClockCore : SystemClockCore
+    {
+        public StandardLocalSystemClockCore(StandardSteadyClockCore steadyClockCore) : base(steadyClockCore) {}
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardNetworkSystemClockCore.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardNetworkSystemClockCore.cs
new file mode 100644
index 00000000..aec03485
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardNetworkSystemClockCore.cs
@@ -0,0 +1,36 @@
+using Ryujinx.Cpu;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    class StandardNetworkSystemClockCore : SystemClockCore
+    {
+        private TimeSpanType _standardNetworkClockSufficientAccuracy;
+
+        public StandardNetworkSystemClockCore(StandardSteadyClockCore steadyClockCore) : base(steadyClockCore)
+        {
+            _standardNetworkClockSufficientAccuracy = new TimeSpanType(0);
+        }
+
+        public bool IsStandardNetworkSystemClockAccuracySufficient(ITickSource tickSource)
+        {
+            SteadyClockCore      steadyClockCore  = GetSteadyClockCore();
+            SteadyClockTimePoint currentTimePoint = steadyClockCore.GetCurrentTimePoint(tickSource);
+
+            bool isStandardNetworkClockSufficientAccuracy = false;
+
+            ResultCode result = GetClockContext(tickSource, out SystemClockContext context);
+
+            if (result == ResultCode.Success && context.SteadyTimePoint.GetSpanBetween(currentTimePoint, out long outSpan) == ResultCode.Success)
+            {
+                isStandardNetworkClockSufficientAccuracy = outSpan * 1000000000 < _standardNetworkClockSufficientAccuracy.NanoSeconds;
+            }
+
+            return isStandardNetworkClockSufficientAccuracy;
+        }
+
+        public void SetStandardNetworkClockSufficientAccuracy(TimeSpanType standardNetworkClockSufficientAccuracy)
+        {
+            _standardNetworkClockSufficientAccuracy = standardNetworkClockSufficientAccuracy;
+        }
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardSteadyClockCore.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardSteadyClockCore.cs
new file mode 100644
index 00000000..8392c4b5
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardSteadyClockCore.cs
@@ -0,0 +1,72 @@
+using Ryujinx.Cpu;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    class StandardSteadyClockCore : SteadyClockCore
+    {
+        private TimeSpanType _setupValue;
+        private TimeSpanType _testOffset;
+        private TimeSpanType _internalOffset;
+        private TimeSpanType _cachedRawTimePoint;
+
+        public StandardSteadyClockCore()
+        {
+            _setupValue         = TimeSpanType.Zero;
+            _testOffset         = TimeSpanType.Zero;
+            _internalOffset     = TimeSpanType.Zero;
+            _cachedRawTimePoint = TimeSpanType.Zero;
+        }
+
+        public override SteadyClockTimePoint GetTimePoint(ITickSource tickSource)
+        {
+            SteadyClockTimePoint result = new SteadyClockTimePoint
+            {
+                TimePoint     = GetCurrentRawTimePoint(tickSource).ToSeconds(),
+                ClockSourceId = GetClockSourceId()
+            };
+
+            return result;
+        }
+
+        public override TimeSpanType GetTestOffset()
+        {
+            return _testOffset;
+        }
+
+        public override void SetTestOffset(TimeSpanType testOffset)
+        {
+            _testOffset = testOffset;
+        }
+
+        public override TimeSpanType GetInternalOffset()
+        {
+            return _internalOffset;
+        }
+
+        public override void SetInternalOffset(TimeSpanType internalOffset)
+        {
+            _internalOffset = internalOffset;
+        }
+
+        public override TimeSpanType GetCurrentRawTimePoint(ITickSource tickSource)
+        {
+            TimeSpanType ticksTimeSpan = TimeSpanType.FromTicks(tickSource.Counter, tickSource.Frequency);
+
+            TimeSpanType rawTimePoint = new TimeSpanType(_setupValue.NanoSeconds + ticksTimeSpan.NanoSeconds);
+
+            if (rawTimePoint.NanoSeconds < _cachedRawTimePoint.NanoSeconds)
+            {
+                rawTimePoint.NanoSeconds = _cachedRawTimePoint.NanoSeconds;
+            }
+
+            _cachedRawTimePoint = rawTimePoint;
+
+            return rawTimePoint;
+        }
+
+        public void SetSetupValue(TimeSpanType setupValue)
+        {
+            _setupValue = setupValue;
+        }
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardUserSystemClockCore.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardUserSystemClockCore.cs
new file mode 100644
index 00000000..fa485437
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/StandardUserSystemClockCore.cs
@@ -0,0 +1,108 @@
+using Ryujinx.Cpu;
+using Ryujinx.HLE.HOS.Kernel.Threading;
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    class StandardUserSystemClockCore : SystemClockCore
+    {
+        private StandardLocalSystemClockCore   _localSystemClockCore;
+        private StandardNetworkSystemClockCore _networkSystemClockCore;
+        private bool                           _autoCorrectionEnabled;
+        private SteadyClockTimePoint           _autoCorrectionTime;
+        private KEvent                         _autoCorrectionEvent;
+
+        public StandardUserSystemClockCore(StandardLocalSystemClockCore localSystemClockCore, StandardNetworkSystemClockCore networkSystemClockCore) : base(localSystemClockCore.GetSteadyClockCore())
+        {
+            _localSystemClockCore   = localSystemClockCore;
+            _networkSystemClockCore = networkSystemClockCore;
+            _autoCorrectionEnabled  = false;
+            _autoCorrectionTime     = SteadyClockTimePoint.GetRandom();
+            _autoCorrectionEvent    = null;
+        }
+
+        protected override ResultCode Flush(SystemClockContext context)
+        {
+            // As UserSystemClock isn't a real system clock, this shouldn't happens.
+            throw new NotImplementedException();
+        }
+
+        public override ResultCode GetClockContext(ITickSource tickSource, out SystemClockContext context)
+        {
+            ResultCode result = ApplyAutomaticCorrection(tickSource, false);
+
+            context = new SystemClockContext();
+
+            if (result == ResultCode.Success)
+            {
+                return _localSystemClockCore.GetClockContext(tickSource, out context);
+            }
+
+            return result;
+        }
+
+        public override ResultCode SetClockContext(SystemClockContext context)
+        {
+            return ResultCode.NotImplemented;
+        }
+
+        private ResultCode ApplyAutomaticCorrection(ITickSource tickSource, bool autoCorrectionEnabled)
+        {
+            ResultCode result = ResultCode.Success;
+
+            if (_autoCorrectionEnabled != autoCorrectionEnabled && _networkSystemClockCore.IsClockSetup(tickSource))
+            {
+                result = _networkSystemClockCore.GetClockContext(tickSource, out SystemClockContext context);
+
+                if (result == ResultCode.Success)
+                {
+                    _localSystemClockCore.SetClockContext(context);
+                }
+            }
+
+            return result;
+        }
+
+        internal void CreateAutomaticCorrectionEvent(Horizon system)
+        {
+            _autoCorrectionEvent = new KEvent(system.KernelContext);
+        }
+
+        public ResultCode SetAutomaticCorrectionEnabled(ITickSource tickSource, bool autoCorrectionEnabled)
+        {
+            ResultCode result = ApplyAutomaticCorrection(tickSource, autoCorrectionEnabled);
+
+            if (result == ResultCode.Success)
+            {
+                _autoCorrectionEnabled = autoCorrectionEnabled;
+            }
+
+            return result;
+        }
+
+        public bool IsAutomaticCorrectionEnabled()
+        {
+            return _autoCorrectionEnabled;
+        }
+
+        public KReadableEvent GetAutomaticCorrectionReadableEvent()
+        {
+            return _autoCorrectionEvent.ReadableEvent;
+        }
+
+        public void SetAutomaticCorrectionUpdatedTime(SteadyClockTimePoint steadyClockTimePoint)
+        {
+            _autoCorrectionTime = steadyClockTimePoint;
+        }
+
+        public SteadyClockTimePoint GetAutomaticCorrectionUpdatedTime()
+        {
+            return _autoCorrectionTime;
+        }
+
+        public void SignalAutomaticCorrectionEvent()
+        {
+            _autoCorrectionEvent.WritableEvent.Signal();
+        }
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/SteadyClockCore.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/SteadyClockCore.cs
new file mode 100644
index 00000000..18da4ed3
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/SteadyClockCore.cs
@@ -0,0 +1,98 @@
+using Ryujinx.Common.Utilities;
+using Ryujinx.Cpu;
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    abstract class SteadyClockCore
+    {
+        private UInt128 _clockSourceId;
+        private bool    _isRtcResetDetected;
+        private bool    _isInitialized;
+
+        public SteadyClockCore()
+        {
+            _clockSourceId      = UInt128Utils.CreateRandom();
+            _isRtcResetDetected = false;
+            _isInitialized      = false;
+        }
+
+        public UInt128 GetClockSourceId()
+        {
+            return _clockSourceId;
+        }
+
+        public void SetClockSourceId(UInt128 clockSourceId)
+        {
+            _clockSourceId = clockSourceId;
+        }
+
+        public void SetRtcReset()
+        {
+            _isRtcResetDetected = true;
+        }
+
+        public virtual TimeSpanType GetTestOffset()
+        {
+            return new TimeSpanType(0);
+        }
+
+        public virtual void SetTestOffset(TimeSpanType testOffset) {}
+
+        public ResultCode GetRtcValue(out ulong rtcValue)
+        {
+            rtcValue = 0;
+
+            return ResultCode.NotImplemented;
+        }
+
+        public bool IsRtcResetDetected()
+        {
+            return _isRtcResetDetected;
+        }
+
+        public ResultCode GetSetupResultValue()
+        {
+            return ResultCode.Success;
+        }
+
+        public virtual TimeSpanType GetInternalOffset()
+        {
+            return new TimeSpanType(0);
+        }
+
+        public virtual void SetInternalOffset(TimeSpanType internalOffset) {}
+
+        public virtual SteadyClockTimePoint GetTimePoint(ITickSource tickSource)
+        {
+            throw new NotImplementedException();
+        }
+
+        public virtual TimeSpanType GetCurrentRawTimePoint(ITickSource tickSource)
+        {
+            SteadyClockTimePoint timePoint = GetTimePoint(tickSource);
+
+            return TimeSpanType.FromSeconds(timePoint.TimePoint);
+        }
+
+        public SteadyClockTimePoint GetCurrentTimePoint(ITickSource tickSource)
+        {
+            SteadyClockTimePoint result = GetTimePoint(tickSource);
+
+            result.TimePoint += GetTestOffset().ToSeconds();
+            result.TimePoint += GetInternalOffset().ToSeconds();
+
+            return result;
+        }
+
+        public bool IsInitialized()
+        {
+            return _isInitialized;
+        }
+
+        public void MarkInitialized()
+        {
+            _isInitialized = true;
+        }
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/SystemClockContextUpdateCallback.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/SystemClockContextUpdateCallback.cs
new file mode 100644
index 00000000..6229f5ed
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/SystemClockContextUpdateCallback.cs
@@ -0,0 +1,71 @@
+using Ryujinx.HLE.HOS.Kernel.Threading;
+using System.Collections.Generic;
+using System.Threading;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    abstract class SystemClockContextUpdateCallback
+    {
+        private   List<KWritableEvent> _operationEventList;
+        protected SystemClockContext   _context;
+        private   bool                 _hasContext;
+
+        public SystemClockContextUpdateCallback()
+        {
+            _operationEventList = new List<KWritableEvent>();
+            _context            = new SystemClockContext();
+            _hasContext         = false;
+        }
+
+        private bool NeedUpdate(SystemClockContext context)
+        {
+            if (_hasContext)
+            {
+                return _context.Offset != context.Offset || _context.SteadyTimePoint.ClockSourceId != context.SteadyTimePoint.ClockSourceId;
+            }
+
+            return true;
+        }
+
+        public void RegisterOperationEvent(KWritableEvent writableEvent)
+        {
+            Monitor.Enter(_operationEventList);
+            _operationEventList.Add(writableEvent);
+            Monitor.Exit(_operationEventList);
+        }
+
+        private void BroadcastOperationEvent()
+        {
+            Monitor.Enter(_operationEventList);
+
+            foreach (KWritableEvent e in _operationEventList)
+            {
+                e.Signal();
+            }
+
+            Monitor.Exit(_operationEventList);
+        }
+
+        protected abstract ResultCode Update();
+
+        public ResultCode Update(SystemClockContext context)
+        {
+            ResultCode result = ResultCode.Success;
+
+            if (NeedUpdate(context))
+            {
+                _context    = context;
+                _hasContext = true;
+
+                result = Update();
+
+                if (result == ResultCode.Success)
+                {
+                    BroadcastOperationEvent();
+                }
+            }
+
+            return result;
+        }
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/SystemClockCore.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/SystemClockCore.cs
new file mode 100644
index 00000000..f4bbaa60
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/SystemClockCore.cs
@@ -0,0 +1,144 @@
+using Ryujinx.Cpu;
+using Ryujinx.HLE.HOS.Kernel.Threading;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    abstract class SystemClockCore
+    {
+        private SteadyClockCore                  _steadyClockCore;
+        private SystemClockContext               _context;
+        private bool                             _isInitialized;
+        private SystemClockContextUpdateCallback _systemClockContextUpdateCallback;
+
+        public SystemClockCore(SteadyClockCore steadyClockCore)
+        {
+            _steadyClockCore = steadyClockCore;
+            _context         = new SystemClockContext();
+            _isInitialized   = false;
+
+            _context.SteadyTimePoint.ClockSourceId = steadyClockCore.GetClockSourceId();
+            _systemClockContextUpdateCallback      = null;
+        }
+
+        public virtual SteadyClockCore GetSteadyClockCore()
+        {
+            return _steadyClockCore;
+        }
+
+        public ResultCode GetCurrentTime(ITickSource tickSource, out long posixTime)
+        {
+            posixTime = 0;
+
+            SteadyClockTimePoint currentTimePoint = _steadyClockCore.GetCurrentTimePoint(tickSource);
+
+            ResultCode result = GetClockContext(tickSource, out SystemClockContext clockContext);
+
+            if (result == ResultCode.Success)
+            {
+                result = ResultCode.TimeMismatch;
+
+                if (currentTimePoint.ClockSourceId == clockContext.SteadyTimePoint.ClockSourceId)
+                {
+                    posixTime = clockContext.Offset + currentTimePoint.TimePoint;
+
+                    result = 0;
+                }
+            }
+
+            return result;
+        }
+
+        public ResultCode SetCurrentTime(ITickSource tickSource, long posixTime)
+        {
+            SteadyClockTimePoint currentTimePoint = _steadyClockCore.GetCurrentTimePoint(tickSource);
+
+            SystemClockContext clockContext = new SystemClockContext()
+            {
+                Offset          = posixTime - currentTimePoint.TimePoint,
+                SteadyTimePoint = currentTimePoint
+            };
+
+            ResultCode result = SetClockContext(clockContext);
+
+            if (result == ResultCode.Success)
+            {
+                result = Flush(clockContext);
+            }
+
+            return result;
+        }
+
+        public virtual ResultCode GetClockContext(ITickSource tickSource, out SystemClockContext context)
+        {
+            context = _context;
+
+            return ResultCode.Success;
+        }
+
+        public virtual ResultCode SetClockContext(SystemClockContext context)
+        {
+            _context = context;
+
+            return ResultCode.Success;
+        }
+
+        protected virtual ResultCode Flush(SystemClockContext context)
+        {
+            if (_systemClockContextUpdateCallback == null)
+            {
+                return ResultCode.Success;
+            }
+
+            return _systemClockContextUpdateCallback.Update(context);
+        }
+
+        public void SetUpdateCallbackInstance(SystemClockContextUpdateCallback systemClockContextUpdateCallback)
+        {
+            _systemClockContextUpdateCallback = systemClockContextUpdateCallback;
+        }
+
+        public void RegisterOperationEvent(KWritableEvent writableEvent)
+        {
+            if (_systemClockContextUpdateCallback != null)
+            {
+                _systemClockContextUpdateCallback.RegisterOperationEvent(writableEvent);
+            }
+        }
+
+        public ResultCode SetSystemClockContext(SystemClockContext context)
+        {
+            ResultCode result = SetClockContext(context);
+
+            if (result == ResultCode.Success)
+            {
+                result = Flush(context);
+            }
+
+            return result;
+        }
+
+        public bool IsInitialized()
+        {
+            return _isInitialized;
+        }
+
+        public void MarkInitialized()
+        {
+            _isInitialized = true;
+        }
+
+        public bool IsClockSetup(ITickSource tickSource)
+        {
+            ResultCode result = GetClockContext(tickSource, out SystemClockContext context);
+
+            if (result == ResultCode.Success)
+            {
+                SteadyClockTimePoint steadyClockTimePoint = _steadyClockCore.GetCurrentTimePoint(tickSource);
+
+                return steadyClockTimePoint.ClockSourceId == context.SteadyTimePoint.ClockSourceId;
+            }
+
+            return false;
+        }
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/TickBasedSteadyClockCore.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/TickBasedSteadyClockCore.cs
new file mode 100644
index 00000000..fe74da7e
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/TickBasedSteadyClockCore.cs
@@ -0,0 +1,24 @@
+using Ryujinx.Cpu;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    class TickBasedSteadyClockCore : SteadyClockCore
+    {
+        public TickBasedSteadyClockCore() {}
+
+        public override SteadyClockTimePoint GetTimePoint(ITickSource tickSource)
+        {
+            SteadyClockTimePoint result = new SteadyClockTimePoint
+            {
+                TimePoint     = 0,
+                ClockSourceId = GetClockSourceId()
+            };
+
+            TimeSpanType ticksTimeSpan = TimeSpanType.FromTicks(tickSource.Counter, tickSource.Frequency);
+
+            result.TimePoint = ticksTimeSpan.ToSeconds();
+
+            return result;
+        }
+    }
+}
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/ClockSnapshot.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/ClockSnapshot.cs
new file mode 100644
index 00000000..07c1b405
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/ClockSnapshot.cs
@@ -0,0 +1,50 @@
+using Ryujinx.HLE.HOS.Services.Time.TimeZone;
+using System;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0xD0)]
+    struct ClockSnapshot
+    {
+        public SystemClockContext     UserContext;
+        public SystemClockContext     NetworkContext;
+        public long                   UserTime;
+        public long                   NetworkTime;
+        public CalendarTime           UserCalendarTime;
+        public CalendarTime           NetworkCalendarTime;
+        public CalendarAdditionalInfo UserCalendarAdditionalTime;
+        public CalendarAdditionalInfo NetworkCalendarAdditionalTime;
+        public SteadyClockTimePoint   SteadyClockTimePoint;
+
+        private LocationNameStorageHolder _locationName;
+
+        public Span<byte> LocationName => MemoryMarshal.Cast<LocationNameStorageHolder, byte>(MemoryMarshal.CreateSpan(ref _locationName, LocationNameStorageHolder.Size));
+
+        [MarshalAs(UnmanagedType.I1)]
+        public bool   IsAutomaticCorrectionEnabled;
+        public byte   Type;
+        public ushort Unknown;
+
+
+        [StructLayout(LayoutKind.Sequential, Pack = 1, Size = Size)]
+        private struct LocationNameStorageHolder
+        {
+            public const int Size = 0x24;
+        }
+
+        public static ResultCode GetCurrentTime(out long currentTime, SteadyClockTimePoint steadyClockTimePoint, SystemClockContext context)
+        {
+            currentTime = 0;
+
+            if (steadyClockTimePoint.ClockSourceId == context.SteadyTimePoint.ClockSourceId)
+            {
+                currentTime = steadyClockTimePoint.TimePoint + context.Offset;
+
+                return ResultCode.Success;
+            }
+
+            return ResultCode.TimeMismatch;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/SteadyClockTimePoint.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/SteadyClockTimePoint.cs
new file mode 100644
index 00000000..729e11b6
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/SteadyClockTimePoint.cs
@@ -0,0 +1,43 @@
+using Ryujinx.Common.Utilities;
+using System;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    struct SteadyClockTimePoint
+    {
+        public long    TimePoint;
+        public UInt128 ClockSourceId;
+
+        public ResultCode GetSpanBetween(SteadyClockTimePoint other, out long outSpan)
+        {
+            outSpan = 0;
+
+            if (ClockSourceId == other.ClockSourceId)
+            {
+                try
+                {
+                    outSpan = checked(other.TimePoint - TimePoint);
+
+                    return ResultCode.Success;
+                }
+                catch (OverflowException)
+                {
+                    return ResultCode.Overflow;
+                }
+            }
+
+            return ResultCode.Overflow;
+        }
+
+        public static SteadyClockTimePoint GetRandom()
+        {
+            return new SteadyClockTimePoint
+            {
+                TimePoint     = 0,
+                ClockSourceId = UInt128Utils.CreateRandom()
+            };
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/SystemClockContext.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/SystemClockContext.cs
new file mode 100644
index 00000000..6b589c28
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/SystemClockContext.cs
@@ -0,0 +1,11 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    struct SystemClockContext
+    {
+        public long                 Offset;
+        public SteadyClockTimePoint SteadyTimePoint;
+    }
+}
\ No newline at end of file
diff --git a/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/TimeSpanType.cs b/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/TimeSpanType.cs
new file mode 100644
index 00000000..0070193f
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Time/Clock/Types/TimeSpanType.cs
@@ -0,0 +1,50 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    [StructLayout(LayoutKind.Sequential)]
+    struct TimeSpanType
+    {
+        private const long NanoSecondsPerSecond = 1000000000;
+
+        public static readonly TimeSpanType Zero = new TimeSpanType(0);
+
+        public long NanoSeconds;
+
+        public TimeSpanType(long nanoSeconds)
+        {
+            NanoSeconds = nanoSeconds;
+        }
+
+        public long ToSeconds()
+        {
+            return NanoSeconds / NanoSecondsPerSecond;
+        }
+
+        public TimeSpanType AddSeconds(long seconds)
+        {
+            return new TimeSpanType(NanoSeconds + (seconds * NanoSecondsPerSecond));
+        }
+
+        public bool IsDaylightSavingTime()
+        {
+            return DateTime.UnixEpoch.AddSeconds(ToSeconds()).ToLocalTime().IsDaylightSavingTime();
+        }
+
+        public static TimeSpanType FromSeconds(long seconds)
+        {
+            return new TimeSpanType(seconds * NanoSecondsPerSecond);
+        }
+
+        public static TimeSpanType FromTimeSpan(TimeSpan timeSpan)
+        {
+            return new TimeSpanType((long)(timeSpan.TotalMilliseconds * 1000000));
+        }
+
+        public static TimeSpanType FromTicks(ulong ticks, ulong frequency)
+        {
+            return FromSeconds((long)ticks / (long)frequency);
+        }
+    }
+}
\ No newline at end of file