hle: kernel: Unify and integrate reference tracking for KServerPort/KServerSession.

- These are not managed elsewhere, and need to be tracked and closed on emulation shutdown.

src/core/hle/kernel/hle_ipc.cpp

@@ -59,6 +59,9 @@ bool SessionRequestManager::HasSessionRequestHandler(const HLERequestContext& co
 
 void SessionRequestHandler::ClientConnected(KServerSession* session) {
     session->ClientConnected(shared_from_this());
+
+    // Ensure our server session is tracked globally.
+    kernel.RegisterServerObject(session);
 }
 
 void SessionRequestHandler::ClientDisconnected(KServerSession* session) {

src/core/hle/kernel/k_server_port.cpp

@@ -65,6 +65,9 @@ void KServerPort::Destroy() {
 
     // Release host emulation members.
     session_handler.reset();
+
+    // Ensure that the global list tracking server objects does not hold on to a reference.
+    kernel.UnregisterServerObject(this);
 }
 
 bool KServerPort::IsSignaled() const {

src/core/hle/kernel/k_server_session.cpp

@@ -49,6 +49,9 @@ void KServerSession::Destroy() {
 
     // Release host emulation members.
     manager.reset();
+
+    // Ensure that the global list tracking server objects does not hold on to a reference.
+    kernel.UnregisterServerObject(this);
 }
 
 void KServerSession::OnClientClosed() {

src/core/hle/kernel/kernel.cpp

@@ -96,15 +96,15 @@ struct KernelCore::Impl {
 
         process_list.clear();
 
-        // Close all open server ports.
-        std::unordered_set<KServerPort*> server_ports_;
+        // Close all open server sessions and ports.
+        std::unordered_set<KAutoObject*> server_objects_;
         {
-            std::scoped_lock lk{server_ports_lock};
-            server_ports_ = server_ports;
-            server_ports.clear();
+            std::scoped_lock lk(server_objects_lock);
+            server_objects_ = server_objects;
+            server_objects.clear();
         }
-        for (auto* server_port : server_ports_) {
-            server_port->Close();
+        for (auto* server_object : server_objects_) {
+            server_object->Close();
         }
 
         // Ensures all service threads gracefully shutdown.
@@ -659,13 +659,20 @@ struct KernelCore::Impl {
         }
 
         KClientPort* port = &search->second(system.ServiceManager(), system);
-        {
-            std::scoped_lock lk{server_ports_lock};
-            server_ports.insert(&port->GetParent()->GetServerPort());
-        }
+        RegisterServerObject(&port->GetParent()->GetServerPort());
         return port;
     }
 
+    void RegisterServerObject(KAutoObject* server_object) {
+        std::scoped_lock lk(server_objects_lock);
+        server_objects.insert(server_object);
+    }
+
+    void UnregisterServerObject(KAutoObject* server_object) {
+        std::scoped_lock lk(server_objects_lock);
+        server_objects.erase(server_object);
+    }
+
     std::weak_ptr<Kernel::ServiceThread> CreateServiceThread(KernelCore& kernel,
                                                              const std::string& name) {
         auto service_thread = std::make_shared<Kernel::ServiceThread>(kernel, 1, name);
@@ -693,7 +700,7 @@ struct KernelCore::Impl {
         service_threads_manager.QueueWork([this]() { service_threads.clear(); });
     }
 
-    std::mutex server_ports_lock;
+    std::mutex server_objects_lock;
     std::mutex registered_objects_lock;
     std::mutex registered_in_use_objects_lock;
 
@@ -723,7 +730,7 @@ struct KernelCore::Impl {
     /// the ConnectToPort SVC.
     std::unordered_map<std::string, ServiceInterfaceFactory> service_interface_factory;
     NamedPortTable named_ports;
-    std::unordered_set<KServerPort*> server_ports;
+    std::unordered_set<KAutoObject*> server_objects;
     std::unordered_set<KAutoObject*> registered_objects;
     std::unordered_set<KAutoObject*> registered_in_use_objects;
 
@@ -928,6 +935,14 @@ KClientPort* KernelCore::CreateNamedServicePort(std::string name) {
     return impl->CreateNamedServicePort(std::move(name));
 }
 
+void KernelCore::RegisterServerObject(KAutoObject* server_object) {
+    impl->RegisterServerObject(server_object);
+}
+
+void KernelCore::UnregisterServerObject(KAutoObject* server_object) {
+    impl->UnregisterServerObject(server_object);
+}
+
 void KernelCore::RegisterKernelObject(KAutoObject* object) {
     std::scoped_lock lk{impl->registered_objects_lock};
     impl->registered_objects.insert(object);

src/core/hle/kernel/kernel.h

@@ -195,6 +195,14 @@ public:
     /// Opens a port to a service previously registered with RegisterNamedService.
     KClientPort* CreateNamedServicePort(std::string name);
 
+    /// Registers a server session or port with the gobal emulation state, to be freed on shutdown.
+    /// This is necessary because we do not emulate processes for HLE sessions and ports.
+    void RegisterServerObject(KAutoObject* server_object);
+
+    /// Unregisters a server session or port previously registered with RegisterServerSession when
+    /// it was destroyed during the current emulation session.
+    void UnregisterServerObject(KAutoObject* server_object);
+
     /// Registers all kernel objects with the global emulation state, this is purely for tracking
     /// leaks after emulation has been shutdown.
     void RegisterKernelObject(KAutoObject* object);

src/core/hle/service/sm/sm.cpp

@@ -153,6 +153,7 @@ ResultVal<Kernel::KClientSession*> SM::GetServiceImpl(Kernel::HLERequestContext&
     auto& port = port_result.Unwrap();
     SCOPE_EXIT({ port->GetClientPort().Close(); });
 
+    kernel.RegisterServerObject(&port->GetServerPort());
 
     // Create a new session.
     Kernel::KClientSession* session{};