Accurately implement steady & system clocks (#732)

* Improve SteadyClock implementation accuracy

* Rewrite system clocks to be accurate

* Implement IStaticService 100 & 101

* Add time:* permissions

* Address comments

* Realign TimePermissions definitions

* Address gdk's comments

* Fix after rebase

1 files changed, 31 insertions, 0 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Time/Clock/SystemClockCore.cs b/Ryujinx.HLE/HOS/Services/Time/Clock/SystemClockCore.cs
new file mode 100644
index 00000000..d3a056e4
--- /dev/null
+++ b/Ryujinx.HLE/HOS/Services/Time/Clock/SystemClockCore.cs
@@ -0,0 +1,31 @@
+using Ryujinx.HLE.HOS.Kernel.Threading;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    abstract class SystemClockCore
+    {
+        public abstract SteadyClockCore GetSteadyClockCore();
+
+        public abstract ResultCode GetSystemClockContext(KThread thread, out SystemClockContext context);
+
+        public abstract ResultCode SetSystemClockContext(SystemClockContext context);
+
+        public abstract ResultCode Flush(SystemClockContext context);
+
+        public bool IsClockSetup(KThread thread)
+        {
+            ResultCode result = GetSystemClockContext(thread, out SystemClockContext context);
+
+            if (result == ResultCode.Success)
+            {
+                SteadyClockCore steadyClockCore = GetSteadyClockCore();
+
+                SteadyClockTimePoint steadyClockTimePoint = steadyClockCore.GetCurrentTimePoint(thread);
+
+                return steadyClockTimePoint.ClockSourceId == context.SteadyTimePoint.ClockSourceId;
+            }
+
+            return false;
+        }
+    }
+}