Implement time:* 2.0.0 & 3.0.0 commands (#735)

* Finish ISteadyClock implementation

* Implement IsStandardNetworkSystemClockAccuracySufficient

Also use signed values for offsets and TimeSpanType

* Address comments

* Fix one missing nit and improve one comment

1 files changed, 25 insertions, 2 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Time/Clock/StandardNetworkSystemClockCore.cs b/Ryujinx.HLE/HOS/Services/Time/Clock/StandardNetworkSystemClockCore.cs
index 59bc822c..c00f460e 100644
--- a/Ryujinx.HLE/HOS/Services/Time/Clock/StandardNetworkSystemClockCore.cs
+++ b/Ryujinx.HLE/HOS/Services/Time/Clock/StandardNetworkSystemClockCore.cs
@@ -1,4 +1,5 @@
-using Ryujinx.HLE.HOS.Kernel.Threading;
+using System;
+using Ryujinx.HLE.HOS.Kernel.Threading;
 
 namespace Ryujinx.HLE.HOS.Services.Time.Clock
 {
@@ -6,6 +7,7 @@ namespace Ryujinx.HLE.HOS.Services.Time.Clock
     {
         private SteadyClockCore    _steadyClockCore;
         private SystemClockContext _context;
+        private TimeSpanType       _standardNetworkClockSufficientAccuracy;
 
         private static StandardNetworkSystemClockCore instance;
 
@@ -27,7 +29,8 @@ namespace Ryujinx.HLE.HOS.Services.Time.Clock
             _steadyClockCore = steadyClockCore;
             _context         = new SystemClockContext();
 
-            _context.SteadyTimePoint.ClockSourceId = steadyClockCore.GetClockSourceId();
+            _context.SteadyTimePoint.ClockSourceId  = steadyClockCore.GetClockSourceId();
+            _standardNetworkClockSufficientAccuracy = new TimeSpanType(0);
         }
 
         public override ResultCode Flush(SystemClockContext context)
@@ -55,5 +58,25 @@ namespace Ryujinx.HLE.HOS.Services.Time.Clock
 
             return ResultCode.Success;
         }
+
+        public bool IsStandardNetworkSystemClockAccuracySufficient(KThread thread)
+        {
+            SteadyClockCore      steadyClockCore  = GetSteadyClockCore();
+            SteadyClockTimePoint currentTimePoint = steadyClockCore.GetCurrentTimePoint(thread);
+
+            bool isStandardNetworkClockSufficientAccuracy = false;
+
+            if (_context.SteadyTimePoint.GetSpanBetween(currentTimePoint, out long outSpan) == ResultCode.Success)
+            {
+                isStandardNetworkClockSufficientAccuracy = outSpan * 1000000000 < _standardNetworkClockSufficientAccuracy.NanoSeconds;
+            }
+
+            return isStandardNetworkClockSufficientAccuracy;
+        }
+
+        public void SetStandardNetworkClockSufficientAccuracy(TimeSpanType standardNetworkClockSufficientAccuracy)
+        {
+            _standardNetworkClockSufficientAccuracy = standardNetworkClockSufficientAccuracy;
+        }
     }
 }