1 files changed, 87 insertions, 0 deletions
diff --git a/src/Ryujinx.HLE/HOS/Kernel/Ipc/KServerPort.cs b/src/Ryujinx.HLE/HOS/Kernel/Ipc/KServerPort.cs
new file mode 100644
index 00000000..21a3919c
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Kernel/Ipc/KServerPort.cs
@@ -0,0 +1,87 @@
+using Ryujinx.HLE.HOS.Kernel.Common;
+using System.Collections.Generic;
+
+namespace Ryujinx.HLE.HOS.Kernel.Ipc
+{
+    class KServerPort : KSynchronizationObject
+    {
+        private readonly LinkedList<KServerSession>      _incomingConnections;
+        private readonly LinkedList<KLightServerSession> _lightIncomingConnections;
+
+        private readonly KPort _parent;
+
+        public bool IsLight => _parent.IsLight;
+
+        public KServerPort(KernelContext context, KPort parent) : base(context)
+        {
+            _parent = parent;
+
+            _incomingConnections      = new LinkedList<KServerSession>();
+            _lightIncomingConnections = new LinkedList<KLightServerSession>();
+        }
+
+        public void EnqueueIncomingSession(KServerSession session)
+        {
+            AcceptIncomingConnection(_incomingConnections, session);
+        }
+
+        public void EnqueueIncomingLightSession(KLightServerSession session)
+        {
+            AcceptIncomingConnection(_lightIncomingConnections, session);
+        }
+
+        private void AcceptIncomingConnection<T>(LinkedList<T> list, T session)
+        {
+            KernelContext.CriticalSection.Enter();
+
+            list.AddLast(session);
+
+            if (list.Count == 1)
+            {
+                Signal();
+            }
+
+            KernelContext.CriticalSection.Leave();
+        }
+
+        public KServerSession AcceptIncomingConnection()
+        {
+            return AcceptIncomingConnection(_incomingConnections);
+        }
+
+        public KLightServerSession AcceptIncomingLightConnection()
+        {
+            return AcceptIncomingConnection(_lightIncomingConnections);
+        }
+
+        private T AcceptIncomingConnection<T>(LinkedList<T> list)
+        {
+            T session = default;
+
+            KernelContext.CriticalSection.Enter();
+
+            if (list.Count != 0)
+            {
+                session = list.First.Value;
+
+                list.RemoveFirst();
+            }
+
+            KernelContext.CriticalSection.Leave();
+
+            return session;
+        }
+
+        public override bool IsSignaled()
+        {
+            if (_parent.IsLight)
+            {
+                return _lightIncomingConnections.Count != 0;
+            }
+            else
+            {
+                return _incomingConnections.Count != 0;
+            }
+        }
+    }
+}
+\ No newline at end of file