am: Refactor IStorage interface.

src/core/hle/service/am/am.cpp

@@ -709,8 +709,34 @@ void ICommonStateGetter::SetCpuBoostMode(Kernel::HLERequestContext& ctx) {
     apm_sys->SetCpuBoostMode(ctx);
 }
 
-IStorage::IStorage(std::vector<u8> buffer)
+IStorageImpl::~IStorageImpl() = default;
-    : ServiceFramework("IStorage"), buffer(std::move(buffer)) {
+
+class StorageDataImpl final : public IStorageImpl {
+public:
+    explicit StorageDataImpl(std::vector<u8>&& buffer) : buffer{std::move(buffer)} {}
+
+    std::vector<u8>& GetData() override {
+        return buffer;
+    }
+
+    const std::vector<u8>& GetData() const override {
+        return buffer;
+    }
+
+    std::size_t GetSize() const override {
+        return buffer.size();
+    }
+
+private:
+    std::vector<u8> buffer;
+};
+
+IStorage::IStorage(std::vector<u8>&& buffer)
+    : ServiceFramework("IStorage"), impl{std::make_shared<StorageDataImpl>(std::move(buffer))} {
+    Register();
+}
+
+void IStorage::Register() {
     // clang-format off
         static const FunctionInfo functions[] = {
             {0, &IStorage::Open, "Open"},
@@ -723,8 +749,13 @@ IStorage::IStorage(std::vector<u8> buffer)
 
 IStorage::~IStorage() = default;
 
-const std::vector<u8>& IStorage::GetData() const {
+void IStorage::Open(Kernel::HLERequestContext& ctx) {
-    return buffer;
+    LOG_DEBUG(Service_AM, "called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+
+    rb.Push(RESULT_SUCCESS);
+    rb.PushIpcInterface<IStorageAccessor>(*this);
 }
 
 void ICommonStateGetter::GetOperationMode(Kernel::HLERequestContext& ctx) {
@@ -891,15 +922,6 @@ private:
     std::shared_ptr<Applets::Applet> applet;
 };
 
-void IStorage::Open(Kernel::HLERequestContext& ctx) {
-    LOG_DEBUG(Service_AM, "called");
-
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-
-    rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface<IStorageAccessor>(*this);
-}
-
 IStorageAccessor::IStorageAccessor(IStorage& storage)
     : ServiceFramework("IStorageAccessor"), backing(storage) {
     // clang-format off
@@ -921,7 +943,7 @@ void IStorageAccessor::GetSize(Kernel::HLERequestContext& ctx) {
     IPC::ResponseBuilder rb{ctx, 4};
 
     rb.Push(RESULT_SUCCESS);
-    rb.Push(static_cast<u64>(backing.buffer.size()));
+    rb.Push(static_cast<u64>(backing.GetSize()));
 }
 
 void IStorageAccessor::Write(Kernel::HLERequestContext& ctx) {
@@ -932,17 +954,17 @@ void IStorageAccessor::Write(Kernel::HLERequestContext& ctx) {
 
     LOG_DEBUG(Service_AM, "called, offset={}, size={}", offset, data.size());
 
-    if (data.size() > backing.buffer.size() - offset) {
+    if (data.size() > backing.GetSize() - offset) {
         LOG_ERROR(Service_AM,
                   "offset is out of bounds, backing_buffer_sz={}, data_size={}, offset={}",
-                  backing.buffer.size(), data.size(), offset);
+                  backing.GetSize(), data.size(), offset);
 
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(ERR_SIZE_OUT_OF_BOUNDS);
         return;
     }
 
-    std::memcpy(backing.buffer.data() + offset, data.data(), data.size());
+    std::memcpy(backing.GetData().data() + offset, data.data(), data.size());
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
@@ -956,16 +978,16 @@ void IStorageAccessor::Read(Kernel::HLERequestContext& ctx) {
 
     LOG_DEBUG(Service_AM, "called, offset={}, size={}", offset, size);
 
-    if (size > backing.buffer.size() - offset) {
+    if (size > backing.GetSize() - offset) {
         LOG_ERROR(Service_AM, "offset is out of bounds, backing_buffer_sz={}, size={}, offset={}",
-                  backing.buffer.size(), size, offset);
+                  backing.GetSize(), size, offset);
 
         IPC::ResponseBuilder rb{ctx, 2};
         rb.Push(ERR_SIZE_OUT_OF_BOUNDS);
         return;
     }
 
-    ctx.WriteBuffer(backing.buffer.data() + offset, size);
+    ctx.WriteBuffer(backing.GetData().data() + offset, size);
 
     IPC::ResponseBuilder rb{ctx, 2};
     rb.Push(RESULT_SUCCESS);
@@ -1031,7 +1053,7 @@ void ILibraryAppletCreator::CreateTransferMemoryStorage(Kernel::HLERequestContex
     rp.SetCurrentOffset(3);
     const auto handle{rp.Pop<Kernel::Handle>()};
 
-    const auto transfer_mem =
+    auto transfer_mem =
         system.CurrentProcess()->GetHandleTable().Get<Kernel::TransferMemory>(handle);
 
     if (transfer_mem == nullptr) {
@@ -1047,7 +1069,7 @@ void ILibraryAppletCreator::CreateTransferMemoryStorage(Kernel::HLERequestContex
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
     rb.Push(RESULT_SUCCESS);
-    rb.PushIpcInterface(std::make_shared<IStorage>(std::move(memory)));
+    rb.PushIpcInterface<IStorage>(std::move(memory));
 }
 
 IApplicationFunctions::IApplicationFunctions(Core::System& system_)
@@ -1189,13 +1211,11 @@ void IApplicationFunctions::PopLaunchParameter(Kernel::HLERequestContext& ctx) {
         u64 build_id{};
         std::memcpy(&build_id, build_id_full.data(), sizeof(u64));
 
-        const auto data =
+        auto data = backend->GetLaunchParameter({system.CurrentProcess()->GetTitleID(), build_id});
-            backend->GetLaunchParameter({system.CurrentProcess()->GetTitleID(), build_id});
-
         if (data.has_value()) {
             IPC::ResponseBuilder rb{ctx, 2, 0, 1};
             rb.Push(RESULT_SUCCESS);
-            rb.PushIpcInterface<AM::IStorage>(*data);
+            rb.PushIpcInterface<IStorage>(std::move(*data));
             launch_popped_application_specific = true;
             return;
         }
@@ -1218,7 +1238,7 @@ void IApplicationFunctions::PopLaunchParameter(Kernel::HLERequestContext& ctx) {
         std::vector<u8> buffer(sizeof(LaunchParameterAccountPreselectedUser));
         std::memcpy(buffer.data(), &params, buffer.size());
 
-        rb.PushIpcInterface<AM::IStorage>(buffer);
+        rb.PushIpcInterface<IStorage>(std::move(buffer));
         launch_popped_account_preselect = true;
         return;
     }

src/core/hle/service/am/am.h

@@ -12,7 +12,8 @@
 
 namespace Kernel {
 class KernelCore;
-}
+class TransferMemory;
+} // namespace Kernel
 
 namespace Service::NVFlinger {
 class NVFlinger;
@@ -188,19 +189,36 @@ private:
     std::shared_ptr<AppletMessageQueue> msg_queue;
 };
 
+class IStorageImpl {
+public:
+    virtual ~IStorageImpl();
+    virtual std::vector<u8>& GetData() = 0;
+    virtual const std::vector<u8>& GetData() const = 0;
+    virtual std::size_t GetSize() const = 0;
+};
+
 class IStorage final : public ServiceFramework<IStorage> {
 public:
-    explicit IStorage(std::vector<u8> buffer);
+    explicit IStorage(std::vector<u8>&& buffer);
     ~IStorage() override;
 
-    const std::vector<u8>& GetData() const;
+    std::vector<u8>& GetData() {
+        return impl->GetData();
+    }
+
+    const std::vector<u8>& GetData() const {
+        return impl->GetData();
+    }
+
+    std::size_t GetSize() const {
+        return impl->GetSize();
+    }
 
 private:
+    void Register();
     void Open(Kernel::HLERequestContext& ctx);
 
-    std::vector<u8> buffer;
+    std::shared_ptr<IStorageImpl> impl;
-
-    friend class IStorageAccessor;
 };
 
 class IStorageAccessor final : public ServiceFramework<IStorageAccessor> {

src/core/hle/service/am/applets/error.cpp

@@ -186,7 +186,7 @@ void Error::Execute() {
 
 void Error::DisplayCompleted() {
     complete = true;
-    broker.PushNormalDataFromApplet(IStorage{{}});
+    broker.PushNormalDataFromApplet(IStorage{std::vector<u8>{}});
     broker.SignalStateChanged();
 }
 

src/core/hle/service/am/applets/general_backend.cpp

@@ -148,7 +148,7 @@ void Auth::AuthFinished(bool successful) {
     std::vector<u8> out(sizeof(Return));
     std::memcpy(out.data(), &return_, sizeof(Return));
 
-    broker.PushNormalDataFromApplet(IStorage{out});
+    broker.PushNormalDataFromApplet(IStorage{std::move(out)});
     broker.SignalStateChanged();
 }
 
@@ -198,7 +198,7 @@ void PhotoViewer::Execute() {
 }
 
 void PhotoViewer::ViewFinished() {
-    broker.PushNormalDataFromApplet(IStorage{{}});
+    broker.PushNormalDataFromApplet(IStorage{std::vector<u8>{}});
     broker.SignalStateChanged();
 }
 

src/core/hle/service/am/applets/profile_select.cpp

@@ -50,7 +50,7 @@ void ProfileSelect::ExecuteInteractive() {
 
 void ProfileSelect::Execute() {
     if (complete) {
-        broker.PushNormalDataFromApplet(IStorage{final_data});
+        broker.PushNormalDataFromApplet(IStorage{std::move(final_data)});
         return;
     }
 
@@ -71,7 +71,7 @@ void ProfileSelect::SelectionComplete(std::optional<Common::UUID> uuid) {
 
     final_data = std::vector<u8>(sizeof(UserSelectionOutput));
     std::memcpy(final_data.data(), &output, final_data.size());
-    broker.PushNormalDataFromApplet(IStorage{final_data});
+    broker.PushNormalDataFromApplet(IStorage{std::move(final_data)});
     broker.SignalStateChanged();
 }
 

src/core/hle/service/am/applets/software_keyboard.cpp

@@ -102,7 +102,7 @@ void SoftwareKeyboard::ExecuteInteractive() {
 
 void SoftwareKeyboard::Execute() {
     if (complete) {
-        broker.PushNormalDataFromApplet(IStorage{final_data});
+        broker.PushNormalDataFromApplet(IStorage{std::move(final_data)});
         broker.SignalStateChanged();
         return;
     }
@@ -145,15 +145,15 @@ void SoftwareKeyboard::WriteText(std::optional<std::u16string> text) {
         final_data = output_main;
 
         if (complete) {
-            broker.PushNormalDataFromApplet(IStorage{output_main});
+            broker.PushNormalDataFromApplet(IStorage{std::move(output_main)});
             broker.SignalStateChanged();
         } else {
-            broker.PushInteractiveDataFromApplet(IStorage{output_sub});
+            broker.PushInteractiveDataFromApplet(IStorage{std::move(output_sub)});
         }
     } else {
         output_main[0] = 1;
         complete = true;
-        broker.PushNormalDataFromApplet(IStorage{output_main});
+        broker.PushNormalDataFromApplet(IStorage{std::move(output_main)});
         broker.SignalStateChanged();
     }
 }

src/core/hle/service/am/applets/web_browser.cpp

@@ -284,7 +284,7 @@ void WebBrowser::Finalize() {
     std::vector<u8> data(sizeof(WebCommonReturnValue));
     std::memcpy(data.data(), &out, sizeof(WebCommonReturnValue));
 
-    broker.PushNormalDataFromApplet(IStorage{data});
+    broker.PushNormalDataFromApplet(IStorage{std::move(data)});
     broker.SignalStateChanged();
 
     if (!temporary_dir.empty() && FileUtil::IsDirectory(temporary_dir)) {