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https://github.com/Atmosphere-NX/Atmosphere.git
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sf: optimize argument parsing for const LargeData &
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5c97469348
commit
b371487525
1 changed files with 17 additions and 11 deletions
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@ -412,9 +412,13 @@ namespace ams::sf::impl {
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size_t out_object_index;
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};
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template<typename T>
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using DecayForCommandMetaArguments = typename std::conditional<sf::IsLargeData<typename std::decay<T>::type> && !std::is_base_of<impl::OutBaseTag, typename std::decay<T>::type>::value, T, typename std::decay<T>::type>::type;
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template<typename... Arguments>
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struct CommandMetaInfo {
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public:
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using ArgsTypeForInvoke = std::tuple<DecayForCommandMetaArguments<Arguments>...>;
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using ArgsType = std::tuple<typename std::decay<Arguments>::type...>;
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using InDatas = TupleFilter<InDataFilter>::FilteredType<ArgsType>;
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@ -814,7 +818,7 @@ namespace ams::sf::impl {
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}
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/* Useful defines. */
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using ArgsType = typename CommandMeta::ArgsType;
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using ArgsTypeForInvoke = typename CommandMeta::ArgsTypeForInvoke;
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using BufferArrayType = std::array<cmif::PointerAndSize, CommandMeta::NumBuffers>;
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using OutRawHolderType = OutRawHolder<CommandMeta::OutDataSize, CommandMeta::OutDataAlign>;
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using OutHandleHolderType = OutHandleHolder<CommandMeta::NumOutMoveHandles, CommandMeta::NumOutCopyHandles>;
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@ -1000,7 +1004,7 @@ namespace ams::sf::impl {
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/* Argument deserialization. */
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private:
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template<size_t Index, typename T = typename std::tuple_element<Index, ArgsType>::type>
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template<size_t Index, typename T = typename std::tuple_element<Index, ArgsTypeForInvoke>::type>
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NX_CONSTEXPR T DeserializeArgumentImpl(const cmif::ServiceDispatchContext &ctx, const cmif::PointerAndSize &in_raw_data, const OutRawHolderType &out_raw_holder, const BufferArrayType &buffers, OutHandleHolderType &out_handles_holder, InOutObjectHolderType &in_out_objects_holder) {
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constexpr auto Info = CommandMeta::ArgumentSerializationInfos[Index];
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if constexpr (Info.arg_type == ArgumentType::InData) {
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@ -1047,6 +1051,8 @@ namespace ams::sf::impl {
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constexpr auto Attributes = CommandMeta::BufferAttributes[Info.buffer_index];
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if constexpr (Attributes & SfBufferAttr_In) {
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/* TODO: AMS_ABORT_UNLESS()? N does not bother. */
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static_assert(std::is_reference<T>::value);
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static_assert(std::is_const<typename std::remove_reference<T>::type>::value);
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return *reinterpret_cast<const T *>(buffers[Info.buffer_index].GetAddress());
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} else if constexpr (Attributes & SfBufferAttr_Out) {
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return T(buffers[Info.buffer_index]);
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@ -1063,12 +1069,12 @@ namespace ams::sf::impl {
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}
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template<size_t... Is>
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NX_CONSTEXPR ArgsType DeserializeArgumentsImpl(const cmif::ServiceDispatchContext &ctx, const cmif::PointerAndSize &in_raw_data, const OutRawHolderType &out_raw_holder, const BufferArrayType &buffers, OutHandleHolderType &out_handles_holder, InOutObjectHolderType &in_out_objects_holder, std::index_sequence<Is...>) {
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return ArgsType { DeserializeArgumentImpl<Is>(ctx, in_raw_data, out_raw_holder, buffers, out_handles_holder, in_out_objects_holder)..., };
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NX_CONSTEXPR ArgsTypeForInvoke DeserializeArgumentsImpl(const cmif::ServiceDispatchContext &ctx, const cmif::PointerAndSize &in_raw_data, const OutRawHolderType &out_raw_holder, const BufferArrayType &buffers, OutHandleHolderType &out_handles_holder, InOutObjectHolderType &in_out_objects_holder, std::index_sequence<Is...>) {
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return ArgsTypeForInvoke { DeserializeArgumentImpl<Is>(ctx, in_raw_data, out_raw_holder, buffers, out_handles_holder, in_out_objects_holder)..., };
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}
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public:
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NX_CONSTEXPR ArgsType DeserializeArguments(const cmif::ServiceDispatchContext &ctx, const cmif::PointerAndSize &in_raw_data, const OutRawHolderType &out_raw_holder, const BufferArrayType &buffers, OutHandleHolderType &out_handles_holder, InOutObjectHolderType &in_out_objects_holder) {
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return DeserializeArgumentsImpl(ctx, in_raw_data, out_raw_holder, buffers, out_handles_holder, in_out_objects_holder, std::make_index_sequence<std::tuple_size<ArgsType>::value>{});
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NX_CONSTEXPR ArgsTypeForInvoke DeserializeArguments(const cmif::ServiceDispatchContext &ctx, const cmif::PointerAndSize &in_raw_data, const OutRawHolderType &out_raw_holder, const BufferArrayType &buffers, OutHandleHolderType &out_handles_holder, InOutObjectHolderType &in_out_objects_holder) {
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return DeserializeArgumentsImpl(ctx, in_raw_data, out_raw_holder, buffers, out_handles_holder, in_out_objects_holder, std::make_index_sequence<std::tuple_size<ArgsTypeForInvoke>::value>{});
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}
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};
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@ -1118,16 +1124,16 @@ namespace ams::sf::impl {
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/* Decoding/Invocation. */
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{
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typename CommandMeta::ArgsType args_tuple = ImplProcessorType::DeserializeArguments(ctx, in_raw_data, out_raw_holder, buffers, out_handles_holder, in_out_objects_holder);
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typename CommandMeta::ArgsTypeForInvoke args_tuple = ImplProcessorType::DeserializeArguments(ctx, in_raw_data, out_raw_holder, buffers, out_handles_holder, in_out_objects_holder);
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/* Handle in process ID holder if relevant. */
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if constexpr (CommandMeta::HasInProcessIdHolder) {
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/* TODO: More precise value than 32? */
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static_assert(std::tuple_size<typename CommandMeta::ArgsType>::value <= 32, "Commands must have <= 32 arguments");
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static_assert(std::tuple_size<typename CommandMeta::ArgsTypeForInvoke>::value <= 32, "Commands must have <= 32 arguments");
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os::ProcessId process_id{ctx.request.pid};
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#define _SF_IMPL_PROCESSOR_MARSHAL_PROCESS_ID(n) do { \
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using ArgsType = typename CommandMeta::ArgsType; \
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if constexpr (n < std::tuple_size<ArgsType>::value) { \
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using ArgsTypeForInvoke = typename CommandMeta::ArgsTypeForInvoke; \
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if constexpr (n < std::tuple_size<ArgsTypeForInvoke>::value) { \
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if constexpr (CommandMeta::template IsInProcessIdHolderIndex<n>) { \
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R_TRY(MarshalProcessId(std::get<n>(args_tuple), process_id)); \
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} \
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@ -1149,7 +1155,7 @@ namespace ams::sf::impl {
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sf::IServiceObject * const this_ptr = ctx.srv_obj;
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const auto command_result = [this_ptr, invoke_impl, &args_tuple]<size_t ...Ix>(std::index_sequence<Ix...>) ALWAYS_INLINE_LAMBDA {
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return invoke_impl(this_ptr, std::forward<typename std::tuple_element<Ix, TrueArgumentsTuple>::type>(std::get<Ix>(args_tuple))...);
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}(std::make_index_sequence<std::tuple_size<typename CommandMeta::ArgsType>::value>());
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}(std::make_index_sequence<std::tuple_size<typename CommandMeta::ArgsTypeForInvoke>::value>());
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if (R_FAILED(command_result)) {
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cmif::PointerAndSize out_raw_data;
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