Code style fixes and nits on the HLE project (#355)

* Some style fixes and nits on ITimeZoneService

* Remove some unneeded usings

* Remove the Ryujinx.HLE.OsHle.Handles namespace

* Remove hbmenu automatic load on process exit

* Rename Ns to Device, rename Os to System, rename SystemState to State

* Move Exceptions and Utilities out of OsHle

* Rename OsHle to HOS

* Rename OsHle folder to HOS

* IManagerDisplayService and ISystemDisplayService style fixes

* BsdError shouldn't be public

* Add a empty new line before using static

* Remove unused file

* Some style fixes on NPDM

* Exit gracefully when the application is closed

* Code style fixes on IGeneralService

* Add 0x prefix on values printed as hex

* Small improvements on finalization code

* Move ProcessId and ThreadId out of AThreadState

* Rename VFs to FileSystem

* FsAccessHeader shouldn't be public. Also fix file names casing

* More case changes on NPDM

* Remove unused files

* Move using to the correct place on NPDM

* Use properties on KernelAccessControlMmio

* Address PR feedback

1 files changed, 60 insertions, 0 deletions

diff --git a/Ryujinx.HLE/HOS/Kernel/KTlsPageManager.cs b/Ryujinx.HLE/HOS/Kernel/KTlsPageManager.cs
new file mode 100644
index 00000000..1fb2ce6a
--- /dev/null
+++ b/Ryujinx.HLE/HOS/Kernel/KTlsPageManager.cs
@@ -0,0 +1,60 @@
+using System;
+
+namespace Ryujinx.HLE.HOS.Kernel
+{
+    class KTlsPageManager
+    {
+        private const int TlsEntrySize = 0x200;
+
+        private long PagePosition;
+
+        private int UsedSlots;
+
+        private bool[] Slots;
+
+        public bool IsEmpty => UsedSlots == 0;
+        public bool IsFull  => UsedSlots == Slots.Length;
+
+        public KTlsPageManager(long PagePosition)
+        {
+            this.PagePosition = PagePosition;
+
+            Slots = new bool[KMemoryManager.PageSize / TlsEntrySize];
+        }
+
+        public bool TryGetFreeTlsAddr(out long Position)
+        {
+            Position = PagePosition;
+
+            for (int Index = 0; Index < Slots.Length; Index++)
+            {
+                if (!Slots[Index])
+                {
+                    Slots[Index] = true;
+
+                    UsedSlots++;
+
+                    return true;
+                }
+
+                Position += TlsEntrySize;
+            }
+
+            Position = 0;
+
+            return false;
+        }
+
+        public void FreeTlsSlot(int Slot)
+        {
+            if ((uint)Slot > Slots.Length)
+            {
+                throw new ArgumentOutOfRangeException(nameof(Slot));
+            }
+
+            Slots[Slot] = false;
+
+            UsedSlots--;
+        }
+    }
+}
\ No newline at end of file