Migrate to .NET 9

src/Ryujinx.Audio/Input/AudioInputSystem.cs

@@ -48,7 +48,7 @@ public class AudioInputSystem : IDisposable
         /// <summary>
         /// The lock of the parent.
         /// </summary>
-        private readonly object _parentLock;
+        private readonly Lock _parentLock;
 
         /// <summary>
         /// The dispose state.
@@ -62,7 +62,7 @@ public class AudioInputSystem : IDisposable
         /// <param name="parentLock">The lock of the manager</param>
         /// <param name="deviceSession">The hardware device session</param>
         /// <param name="bufferEvent">The buffer release event of the audio input</param>
-        public AudioInputSystem(AudioInputManager manager, object parentLock, IHardwareDeviceSession deviceSession, IWritableEvent bufferEvent)
+        public AudioInputSystem(AudioInputManager manager, Lock parentLock, IHardwareDeviceSession deviceSession, IWritableEvent bufferEvent)
         {
             _manager = manager;
             _parentLock = parentLock;

src/Ryujinx.Audio/Output/AudioOutputSystem.cs

@@ -48,7 +48,7 @@ public class AudioOutputSystem : IDisposable
         /// <summary>
         /// THe lock of the parent.
         /// </summary>
-        private readonly object _parentLock;
+        private readonly Lock _parentLock;
 
         /// <summary>
         /// The dispose state.
@@ -62,7 +62,7 @@ public class AudioOutputSystem : IDisposable
         /// <param name="parentLock">The lock of the manager</param>
         /// <param name="deviceSession">The hardware device session</param>
         /// <param name="bufferEvent">The buffer release event of the audio output</param>
-        public AudioOutputSystem(AudioOutputManager manager, object parentLock, IHardwareDeviceSession deviceSession, IWritableEvent bufferEvent)
+        public AudioOutputSystem(AudioOutputManager manager, Lock parentLock, IHardwareDeviceSession deviceSession, IWritableEvent bufferEvent)
         {
             _manager = manager;
             _parentLock = parentLock;

src/Ryujinx.HLE/HOS/Kernel/Common/KResourceLimit.cs

@@ -15,7 +15,7 @@ class KResourceLimit : KAutoObject
         private readonly long[] _current2;
         private readonly long[] _peak;
 
-        private readonly Lock _lock = new();
+        private readonly object _lock = new();
 
         private readonly LinkedList<KThread> _waitingThreads;
 

src/Ryujinx.HLE/HOS/Kernel/Threading/KCriticalSection.cs

@@ -5,7 +5,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Threading
     class KCriticalSection
     {
         private readonly KernelContext _context;
-        private readonly Lock _lock = new();
+        private readonly object _lock = new();
         private int _recursionCount;
 
         public object Lock => _lock;

src/Ryujinx.HLE/HOS/Services/Sockets/Bsd/Impl/EventFileDescriptor.cs

@@ -10,7 +10,7 @@ class EventFileDescriptor : IFileDescriptor
         private ulong _value;
         private readonly EventFdFlags _flags;
 
-        private readonly Lock _lock = new();
+        private readonly object _lock = new();
 
         public bool Blocking { get => !_flags.HasFlag(EventFdFlags.NonBlocking); set => throw new NotSupportedException(); }