From 97d0c6242368f443c50395b2fa9d99a59f1df1e8 Mon Sep 17 00:00:00 2001
From: Thomas Guillemard <me@thog.eu>
Date: Sun, 14 Jul 2019 22:50:11 +0200
Subject: 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
---
 .../Time/Clock/StandardUserSystemClockCore.cs      | 96 ++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 Ryujinx.HLE/HOS/Services/Time/Clock/StandardUserSystemClockCore.cs

(limited to 'Ryujinx.HLE/HOS/Services/Time/Clock/StandardUserSystemClockCore.cs')

diff --git a/Ryujinx.HLE/HOS/Services/Time/Clock/StandardUserSystemClockCore.cs b/Ryujinx.HLE/HOS/Services/Time/Clock/StandardUserSystemClockCore.cs
new file mode 100644
index 00000000..00f296ad
--- /dev/null
+++ b/Ryujinx.HLE/HOS/Services/Time/Clock/StandardUserSystemClockCore.cs
@@ -0,0 +1,96 @@
+using Ryujinx.HLE.HOS.Kernel.Threading;
+
+namespace Ryujinx.HLE.HOS.Services.Time.Clock
+{
+    class StandardUserSystemClockCore : SystemClockCore
+    {
+        private StandardLocalSystemClockCore   _localSystemClockCore;
+        private StandardNetworkSystemClockCore _networkSystemClockCore;
+        private bool                           _autoCorrectionEnabled;
+
+        private static StandardUserSystemClockCore instance;
+
+        public static StandardUserSystemClockCore Instance
+        {
+            get
+            {
+                if (instance == null)
+                {
+                    instance = new StandardUserSystemClockCore(StandardLocalSystemClockCore.Instance, StandardNetworkSystemClockCore.Instance);
+                }
+
+                return instance;
+            }
+        }
+
+        public StandardUserSystemClockCore(StandardLocalSystemClockCore localSystemClockCore, StandardNetworkSystemClockCore networkSystemClockCore)
+        {
+            _localSystemClockCore   = localSystemClockCore;
+            _networkSystemClockCore = networkSystemClockCore;
+            _autoCorrectionEnabled  = false;
+        }
+
+        public override ResultCode Flush(SystemClockContext context)
+        {
+            return ResultCode.NotImplemented;
+        }
+
+        public override SteadyClockCore GetSteadyClockCore()
+        {
+            return _localSystemClockCore.GetSteadyClockCore();
+        }
+
+        public override ResultCode GetSystemClockContext(KThread thread, out SystemClockContext context)
+        {
+            ResultCode result = ApplyAutomaticCorrection(thread, false);
+
+            context = new SystemClockContext();
+
+            if (result == ResultCode.Success)
+            {
+                return _localSystemClockCore.GetSystemClockContext(thread, out context);
+            }
+
+            return result;
+        }
+
+        public override ResultCode SetSystemClockContext(SystemClockContext context)
+        {
+            return ResultCode.NotImplemented;
+        }
+
+        private ResultCode ApplyAutomaticCorrection(KThread thread, bool autoCorrectionEnabled)
+        {
+            ResultCode result = ResultCode.Success;
+
+            if (_autoCorrectionEnabled != autoCorrectionEnabled && _networkSystemClockCore.IsClockSetup(thread))
+            {
+                result = _networkSystemClockCore.GetSystemClockContext(thread, out SystemClockContext context);
+
+                if (result == ResultCode.Success)
+                {
+                    _localSystemClockCore.SetSystemClockContext(context);
+                }
+            }
+
+            return result;
+        }
+
+        public ResultCode SetAutomaticCorrectionEnabled(KThread thread, bool autoCorrectionEnabled)
+        {
+            ResultCode result = ApplyAutomaticCorrection(thread, autoCorrectionEnabled);
+
+            if (result == ResultCode.Success)
+            {
+                _autoCorrectionEnabled = autoCorrectionEnabled;
+            }
+
+            return result;
+        }
+
+        public bool IsAutomaticCorrectionEnabled()
+        {
+            return _autoCorrectionEnabled;
+        }
+    }
+}
-- 
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