Better process implementation (#491)

* Initial implementation of KProcess

* Some improvements to the memory manager, implement back guest stack trace printing

* Better GetInfo implementation, improve checking in some places with information from process capabilities

* Allow the cpu to read/write from the correct memory locations for accesses crossing a page boundary

* Change long -> ulong for address/size on memory related methods to avoid unnecessary casts

* Attempt at implementing ldr:ro with new KProcess

* Allow BSS with size 0 on ldr:ro

* Add checking for memory block slab heap usage, return errors if full, exit gracefully

* Use KMemoryBlockSize const from KMemoryManager

* Allow all methods to read from non-contiguous locations

* Fix for TransactParcelAuto

* Address PR feedback, additionally fix some small issues related to the KIP loader and implement SVCs GetProcessId, GetProcessList, GetSystemInfo, CreatePort and ManageNamedPort

* Fix wrong check for source pages count from page list on MapPhysicalMemory

* Fix some issues with UnloadNro on ldr:ro

1 files changed, 44 insertions, 7 deletions

diff --git a/Ryujinx.HLE/HOS/Kernel/HleCoreManager.cs b/Ryujinx.HLE/HOS/Kernel/HleCoreManager.cs
index 0bfa2710..6a424cf2 100644
--- a/Ryujinx.HLE/HOS/Kernel/HleCoreManager.cs
+++ b/Ryujinx.HLE/HOS/Kernel/HleCoreManager.cs
@@ -5,24 +5,61 @@ namespace Ryujinx.HLE.HOS.Kernel
 {
     class HleCoreManager
     {
-        private ConcurrentDictionary<Thread, ManualResetEvent> Threads;
+        private class PausableThread
+        {
+            public ManualResetEvent Event { get; private set; }
+
+            public bool IsExiting { get; set; }
+
+            public PausableThread()
+            {
+                Event = new ManualResetEvent(false);
+            }
+        }
+
+        private ConcurrentDictionary<Thread, PausableThread> Threads;
 
         public HleCoreManager()
         {
-            Threads = new ConcurrentDictionary<Thread, ManualResetEvent>();
+            Threads = new ConcurrentDictionary<Thread, PausableThread>();
+        }
+
+        public void Set(Thread Thread)
+        {
+            GetThread(Thread).Event.Set();
+        }
+
+        public void Reset(Thread Thread)
+        {
+            GetThread(Thread).Event.Reset();
+        }
+
+        public void Wait(Thread Thread)
+        {
+            PausableThread PausableThread = GetThread(Thread);
+
+            if (!PausableThread.IsExiting)
+            {
+                PausableThread.Event.WaitOne();
+            }
+        }
+
+        public void Exit(Thread Thread)
+        {
+            GetThread(Thread).IsExiting = true;
         }
 
-        public ManualResetEvent GetThread(Thread Thread)
+        private PausableThread GetThread(Thread Thread)
         {
-            return Threads.GetOrAdd(Thread, (Key) => new ManualResetEvent(false));
+            return Threads.GetOrAdd(Thread, (Key) => new PausableThread());
         }
 
         public void RemoveThread(Thread Thread)
         {
-            if (Threads.TryRemove(Thread, out ManualResetEvent Event))
+            if (Threads.TryRemove(Thread, out PausableThread PausableThread))
             {
-                Event.Set();
-                Event.Dispose();
+                PausableThread.Event.Set();
+                PausableThread.Event.Dispose();
             }
         }
     }