kernel: remove most SessionRequestManager handling from KServerSession

src/core/hle/ipc_helpers.h

@@ -86,13 +86,13 @@ public:
         u32 num_domain_objects{};
         const bool always_move_handles{
             (static_cast<u32>(flags) & static_cast<u32>(Flags::AlwaysMoveHandles)) != 0};
-        if (!ctx.Session()->IsDomain() || always_move_handles) {
+        if (!ctx.Session()->GetSessionRequestManager()->IsDomain() || always_move_handles) {
             num_handles_to_move = num_objects_to_move;
         } else {
             num_domain_objects = num_objects_to_move;
         }
 
-        if (ctx.Session()->IsDomain()) {
+        if (ctx.Session()->GetSessionRequestManager()->IsDomain()) {
             raw_data_size +=
                 static_cast<u32>(sizeof(DomainMessageHeader) / sizeof(u32) + num_domain_objects);
             ctx.write_size += num_domain_objects;
@@ -125,7 +125,8 @@ public:
         if (!ctx.IsTipc()) {
             AlignWithPadding();
 
-            if (ctx.Session()->IsDomain() && ctx.HasDomainMessageHeader()) {
+            if (ctx.Session()->GetSessionRequestManager()->IsDomain() &&
+                ctx.HasDomainMessageHeader()) {
                 IPC::DomainMessageHeader domain_header{};
                 domain_header.num_objects = num_domain_objects;
                 PushRaw(domain_header);
@@ -145,7 +146,7 @@ public:
 
     template <class T>
     void PushIpcInterface(std::shared_ptr<T> iface) {
-        if (context->Session()->IsDomain()) {
+        if (context->Session()->GetSessionRequestManager()->IsDomain()) {
             context->AddDomainObject(std::move(iface));
         } else {
             kernel.CurrentProcess()->GetResourceLimit()->Reserve(
@@ -386,7 +387,7 @@ public:
 
     template <class T>
     std::weak_ptr<T> PopIpcInterface() {
-        ASSERT(context->Session()->IsDomain());
+        ASSERT(context->Session()->GetSessionRequestManager()->IsDomain());
         ASSERT(context->GetDomainMessageHeader().input_object_count > 0);
         return context->GetDomainHandler<T>(Pop<u32>() - 1);
     }

src/core/hle/kernel/hle_ipc.cpp

@@ -19,6 +19,7 @@
 #include "core/hle/kernel/k_server_session.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/service_thread.h"
 #include "core/memory.h"
 
 namespace Kernel {
@@ -56,16 +57,103 @@ bool SessionRequestManager::HasSessionRequestHandler(const HLERequestContext& co
     }
 }
 
+Result SessionRequestManager::CompleteSyncRequest(KServerSession* server_session,
+                                                  HLERequestContext& context) {
+    Result result = ResultSuccess;
+
+    // If the session has been converted to a domain, handle the domain request
+    if (this->HasSessionRequestHandler(context)) {
+        if (IsDomain() && context.HasDomainMessageHeader()) {
+            result = HandleDomainSyncRequest(server_session, context);
+            // If there is no domain header, the regular session handler is used
+        } else if (this->HasSessionHandler()) {
+            // If this manager has an associated HLE handler, forward the request to it.
+            result = this->SessionHandler().HandleSyncRequest(*server_session, context);
+        }
+    } else {
+        ASSERT_MSG(false, "Session handler is invalid, stubbing response!");
+        IPC::ResponseBuilder rb(context, 2);
+        rb.Push(ResultSuccess);
+    }
+
+    if (convert_to_domain) {
+        ASSERT_MSG(!IsDomain(), "ServerSession is already a domain instance.");
+        this->ConvertToDomain();
+        convert_to_domain = false;
+    }
+
+    return result;
+}
+
+Result SessionRequestManager::HandleDomainSyncRequest(KServerSession* server_session,
+                                                      HLERequestContext& context) {
+    if (!context.HasDomainMessageHeader()) {
+        return ResultSuccess;
+    }
+
+    // Set domain handlers in HLE context, used for domain objects (IPC interfaces) as inputs
+    context.SetSessionRequestManager(server_session->GetSessionRequestManager());
+
+    // If there is a DomainMessageHeader, then this is CommandType "Request"
+    const auto& domain_message_header = context.GetDomainMessageHeader();
+    const u32 object_id{domain_message_header.object_id};
+    switch (domain_message_header.command) {
+    case IPC::DomainMessageHeader::CommandType::SendMessage:
+        if (object_id > this->DomainHandlerCount()) {
+            LOG_CRITICAL(IPC,
+                         "object_id {} is too big! This probably means a recent service call "
+                         "needed to return a new interface!",
+                         object_id);
+            ASSERT(false);
+            return ResultSuccess; // Ignore error if asserts are off
+        }
+        if (auto strong_ptr = this->DomainHandler(object_id - 1).lock()) {
+            return strong_ptr->HandleSyncRequest(*server_session, context);
+        } else {
+            ASSERT(false);
+            return ResultSuccess;
+        }
+
+    case IPC::DomainMessageHeader::CommandType::CloseVirtualHandle: {
+        LOG_DEBUG(IPC, "CloseVirtualHandle, object_id=0x{:08X}", object_id);
+
+        this->CloseDomainHandler(object_id - 1);
+
+        IPC::ResponseBuilder rb{context, 2};
+        rb.Push(ResultSuccess);
+        return ResultSuccess;
+    }
+    }
+
+    LOG_CRITICAL(IPC, "Unknown domain command={}", domain_message_header.command.Value());
+    ASSERT(false);
+    return ResultSuccess;
+}
+
+Result SessionRequestManager::QueueSyncRequest(KSession* parent,
+                                               std::shared_ptr<HLERequestContext>&& context) {
+    // Ensure we have a session request handler
+    if (this->HasSessionRequestHandler(*context)) {
+        if (auto strong_ptr = this->GetServiceThread().lock()) {
+            strong_ptr->QueueSyncRequest(*parent, std::move(context));
+        } else {
+            ASSERT_MSG(false, "strong_ptr is nullptr!");
+        }
+    } else {
+        ASSERT_MSG(false, "handler is invalid!");
+    }
+
+    return ResultSuccess;
+}
+
 void SessionRequestHandler::ClientConnected(KServerSession* session) {
-    session->ClientConnected(shared_from_this());
+    session->GetSessionRequestManager()->SetSessionHandler(shared_from_this());
 
     // Ensure our server session is tracked globally.
     kernel.RegisterServerObject(session);
 }
 
-void SessionRequestHandler::ClientDisconnected(KServerSession* session) {
-    session->ClientDisconnected();
-}
+void SessionRequestHandler::ClientDisconnected(KServerSession* session) {}
 
 HLERequestContext::HLERequestContext(KernelCore& kernel_, Core::Memory::Memory& memory_,
                                      KServerSession* server_session_, KThread* thread_)
@@ -126,7 +214,7 @@ void HLERequestContext::ParseCommandBuffer(const KHandleTable& handle_table, u32
         // Padding to align to 16 bytes
         rp.AlignWithPadding();
 
-        if (Session()->IsDomain() &&
+        if (Session()->GetSessionRequestManager()->IsDomain() &&
             ((command_header->type == IPC::CommandType::Request ||
               command_header->type == IPC::CommandType::RequestWithContext) ||
              !incoming)) {
@@ -135,7 +223,7 @@ void HLERequestContext::ParseCommandBuffer(const KHandleTable& handle_table, u32
             if (incoming || domain_message_header) {
                 domain_message_header = rp.PopRaw<IPC::DomainMessageHeader>();
             } else {
-                if (Session()->IsDomain()) {
+                if (Session()->GetSessionRequestManager()->IsDomain()) {
                     LOG_WARNING(IPC, "Domain request has no DomainMessageHeader!");
                 }
             }
@@ -228,12 +316,12 @@ Result HLERequestContext::WriteToOutgoingCommandBuffer(KThread& requesting_threa
     // Write the domain objects to the command buffer, these go after the raw untranslated data.
     // TODO(Subv): This completely ignores C buffers.
 
-    if (Session()->IsDomain()) {
+    if (server_session->GetSessionRequestManager()->IsDomain()) {
         current_offset = domain_offset - static_cast<u32>(outgoing_domain_objects.size());
-        for (const auto& object : outgoing_domain_objects) {
-            server_session->AppendDomainHandler(object);
-            cmd_buf[current_offset++] =
-                static_cast<u32_le>(server_session->NumDomainRequestHandlers());
+        for (auto& object : outgoing_domain_objects) {
+            server_session->GetSessionRequestManager()->AppendDomainHandler(std::move(object));
+            cmd_buf[current_offset++] = static_cast<u32_le>(
+                server_session->GetSessionRequestManager()->DomainHandlerCount());
         }
     }
 

src/core/hle/kernel/hle_ipc.h

@@ -121,6 +121,10 @@ public:
         is_domain = true;
     }
 
+    void ConvertToDomainOnRequestEnd() {
+        convert_to_domain = true;
+    }
+
     std::size_t DomainHandlerCount() const {
         return domain_handlers.size();
     }
@@ -164,7 +168,12 @@ public:
 
     bool HasSessionRequestHandler(const HLERequestContext& context) const;
 
+    Result HandleDomainSyncRequest(KServerSession* server_session, HLERequestContext& context);
+    Result CompleteSyncRequest(KServerSession* server_session, HLERequestContext& context);
+    Result QueueSyncRequest(KSession* parent, std::shared_ptr<HLERequestContext>&& context);
+
 private:
+    bool convert_to_domain{};
     bool is_domain{};
     SessionRequestHandlerPtr session_handler;
     std::vector<SessionRequestHandlerPtr> domain_handlers;

src/core/hle/kernel/k_server_session.cpp

@@ -22,7 +22,6 @@
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/k_thread_queue.h"
 #include "core/hle/kernel/kernel.h"
-#include "core/hle/kernel/service_thread.h"
 #include "core/memory.h"
 
 namespace Kernel {
@@ -74,101 +73,17 @@ bool KServerSession::IsSignaled() const {
     return !m_request_list.empty() && m_current_request == nullptr;
 }
 
-void KServerSession::AppendDomainHandler(SessionRequestHandlerPtr handler) {
-    manager->AppendDomainHandler(std::move(handler));
-}
-
-std::size_t KServerSession::NumDomainRequestHandlers() const {
-    return manager->DomainHandlerCount();
-}
-
-Result KServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& context) {
-    if (!context.HasDomainMessageHeader()) {
-        return ResultSuccess;
-    }
-
-    // Set domain handlers in HLE context, used for domain objects (IPC interfaces) as inputs
-    context.SetSessionRequestManager(manager);
-
-    // If there is a DomainMessageHeader, then this is CommandType "Request"
-    const auto& domain_message_header = context.GetDomainMessageHeader();
-    const u32 object_id{domain_message_header.object_id};
-    switch (domain_message_header.command) {
-    case IPC::DomainMessageHeader::CommandType::SendMessage:
-        if (object_id > manager->DomainHandlerCount()) {
-            LOG_CRITICAL(IPC,
-                         "object_id {} is too big! This probably means a recent service call "
-                         "to {} needed to return a new interface!",
-                         object_id, name);
-            ASSERT(false);
-            return ResultSuccess; // Ignore error if asserts are off
-        }
-        if (auto strong_ptr = manager->DomainHandler(object_id - 1).lock()) {
-            return strong_ptr->HandleSyncRequest(*this, context);
-        } else {
-            ASSERT(false);
-            return ResultSuccess;
-        }
-
-    case IPC::DomainMessageHeader::CommandType::CloseVirtualHandle: {
-        LOG_DEBUG(IPC, "CloseVirtualHandle, object_id=0x{:08X}", object_id);
-
-        manager->CloseDomainHandler(object_id - 1);
-
-        IPC::ResponseBuilder rb{context, 2};
-        rb.Push(ResultSuccess);
-        return ResultSuccess;
-    }
-    }
-
-    LOG_CRITICAL(IPC, "Unknown domain command={}", domain_message_header.command.Value());
-    ASSERT(false);
-    return ResultSuccess;
-}
-
 Result KServerSession::QueueSyncRequest(KThread* thread, Core::Memory::Memory& memory) {
     u32* cmd_buf{reinterpret_cast<u32*>(memory.GetPointer(thread->GetTLSAddress()))};
     auto context = std::make_shared<HLERequestContext>(kernel, memory, this, thread);
 
     context->PopulateFromIncomingCommandBuffer(kernel.CurrentProcess()->GetHandleTable(), cmd_buf);
 
-    // Ensure we have a session request handler
-    if (manager->HasSessionRequestHandler(*context)) {
-        if (auto strong_ptr = manager->GetServiceThread().lock()) {
-            strong_ptr->QueueSyncRequest(*parent, std::move(context));
-        } else {
-            ASSERT_MSG(false, "strong_ptr is nullptr!");
-        }
-    } else {
-        ASSERT_MSG(false, "handler is invalid!");
-    }
-
-    return ResultSuccess;
+    return manager->QueueSyncRequest(parent, std::move(context));
 }
 
 Result KServerSession::CompleteSyncRequest(HLERequestContext& context) {
-    Result result = ResultSuccess;
-
-    // If the session has been converted to a domain, handle the domain request
-    if (manager->HasSessionRequestHandler(context)) {
-        if (IsDomain() && context.HasDomainMessageHeader()) {
-            result = HandleDomainSyncRequest(context);
-            // If there is no domain header, the regular session handler is used
-        } else if (manager->HasSessionHandler()) {
-            // If this ServerSession has an associated HLE handler, forward the request to it.
-            result = manager->SessionHandler().HandleSyncRequest(*this, context);
-        }
-    } else {
-        ASSERT_MSG(false, "Session handler is invalid, stubbing response!");
-        IPC::ResponseBuilder rb(context, 2);
-        rb.Push(ResultSuccess);
-    }
-
-    if (convert_to_domain) {
-        ASSERT_MSG(!IsDomain(), "ServerSession is already a domain instance.");
-        manager->ConvertToDomain();
-        convert_to_domain = false;
-    }
+    Result result = manager->CompleteSyncRequest(this, context);
 
     // The calling thread is waiting for this request to complete, so wake it up.
     context.GetThread().EndWait(result);

src/core/hle/kernel/k_server_session.h

@@ -58,37 +58,8 @@ public:
     }
 
     bool IsSignaled() const override;
-
     void OnClientClosed();
 
-    void ClientConnected(SessionRequestHandlerPtr handler) {
-        if (manager) {
-            manager->SetSessionHandler(std::move(handler));
-        }
-    }
-
-    void ClientDisconnected() {
-        manager = nullptr;
-    }
-
-    /// Adds a new domain request handler to the collection of request handlers within
-    /// this ServerSession instance.
-    void AppendDomainHandler(SessionRequestHandlerPtr handler);
-
-    /// Retrieves the total number of domain request handlers that have been
-    /// appended to this ServerSession instance.
-    std::size_t NumDomainRequestHandlers() const;
-
-    /// Returns true if the session has been converted to a domain, otherwise False
-    bool IsDomain() const {
-        return manager && manager->IsDomain();
-    }
-
-    /// Converts the session to a domain at the end of the current command
-    void ConvertToDomain() {
-        convert_to_domain = true;
-    }
-
     /// Gets the session request manager, which forwards requests to the underlying service
     std::shared_ptr<SessionRequestManager>& GetSessionRequestManager() {
         return manager;
@@ -109,10 +80,6 @@ private:
     /// Completes a sync request from the emulated application.
     Result CompleteSyncRequest(HLERequestContext& context);
 
-    /// Handles a SyncRequest to a domain, forwarding the request to the proper object or closing an
-    /// object handle.
-    Result HandleDomainSyncRequest(Kernel::HLERequestContext& context);
-
     /// This session's HLE request handlers; if nullptr, this is not an HLE server
     std::shared_ptr<SessionRequestManager> manager;
 

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

@@ -15,9 +15,10 @@
 namespace Service::SM {
 
 void Controller::ConvertCurrentObjectToDomain(Kernel::HLERequestContext& ctx) {
-    ASSERT_MSG(!ctx.Session()->IsDomain(), "Session is already a domain");
+    ASSERT_MSG(!ctx.Session()->GetSessionRequestManager()->IsDomain(),
+               "Session is already a domain");
     LOG_DEBUG(Service, "called, server_session={}", ctx.Session()->GetId());
-    ctx.Session()->ConvertToDomain();
+    ctx.Session()->GetSessionRequestManager()->ConvertToDomainOnRequestEnd();
 
     IPC::ResponseBuilder rb{ctx, 3};
     rb.Push(ResultSuccess);