hle: kernel: Refactor to allocate a ServiceThread per service handler.

- Previously, we would allocate a thread per session, which adds new threads on CloneCurrentObject.
- This results in race conditions with N sessions queuing requests to the same service interface.
- Fixes Pokken Tournament DX crashes/softlocks, which were regressed by #6347.

1 files changed, 3 insertions, 14 deletions

diff --git a/src/core/hle/kernel/k_server_session.h b/src/core/hle/kernel/k_server_session.h
index 27b757ad2..0f4b51e37 100644
--- a/src/core/hle/kernel/k_server_session.h
+++ b/src/core/hle/kernel/k_server_session.h
@@ -32,6 +32,7 @@ class HLERequestContext;
 class KernelCore;
 class KSession;
 class SessionRequestHandler;
+class SessionRequestManager;
 class KThread;
 
 class KServerSession final : public KSynchronizationObject,
@@ -46,7 +47,8 @@ public:
 
     void Destroy() override;
 
-    void Initialize(KSession* parent_, std::string&& name_);
+    void Initialize(KSession* parent_, std::string&& name_,
+                    std::shared_ptr<SessionRequestManager> manager_);
 
     KSession* GetParent() {
         return parent;
@@ -104,16 +106,6 @@ public:
         return manager;
     }
 
-    /// Gets the session request manager, which forwards requests to the underlying service
-    const std::shared_ptr<SessionRequestManager>& GetSessionRequestManager() const {
-        return manager;
-    }
-
-    /// Sets the session request manager, which forwards requests to the underlying service
-    void SetSessionRequestManager(std::shared_ptr<SessionRequestManager> manager_) {
-        manager = std::move(manager_);
-    }
-
 private:
     /// Queues a sync request from the emulated application.
     ResultCode QueueSyncRequest(KThread* thread, Core::Memory::Memory& memory);
@@ -131,9 +123,6 @@ private:
     /// When set to True, converts the session to a domain at the end of the command
     bool convert_to_domain{};
 
-    /// Thread to dispatch service requests
-    std::weak_ptr<ServiceThread> service_thread;
-
     /// KSession that owns this KServerSession
     KSession* parent{};
 };