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sf: optimize argument parsing for const LargeData &

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Michael Scire 2021-02-13 00:15:05 -08:00 committed by SciresM
parent 5c97469348
commit b371487525
1 changed files with 17 additions and 11 deletions
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28
libraries/libstratosphere/include/stratosphere/sf/impl/sf_impl_command_serialization.hpp
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@ -412,9 +412,13 @@ namespace ams::sf::impl {
size_t out_object_index;
};
template<typename T>
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;
template<typename... Arguments>
struct CommandMetaInfo {
public:
using ArgsTypeForInvoke = std::tuple<DecayForCommandMetaArguments<Arguments>...>;
using ArgsType = std::tuple<typename std::decay<Arguments>::type...>;
using InDatas = TupleFilter<InDataFilter>::FilteredType<ArgsType>;
@ -814,7 +818,7 @@ namespace ams::sf::impl {
}
/* Useful defines. */
using ArgsType = typename CommandMeta::ArgsType;
using ArgsTypeForInvoke = typename CommandMeta::ArgsTypeForInvoke;
using BufferArrayType = std::array<cmif::PointerAndSize, CommandMeta::NumBuffers>;
using OutRawHolderType = OutRawHolder<CommandMeta::OutDataSize, CommandMeta::OutDataAlign>;
using OutHandleHolderType = OutHandleHolder<CommandMeta::NumOutMoveHandles, CommandMeta::NumOutCopyHandles>;
@ -1000,7 +1004,7 @@ namespace ams::sf::impl {
/* Argument deserialization. */
private:
template<size_t Index, typename T = typename std::tuple_element<Index, ArgsType>::type>
template<size_t Index, typename T = typename std::tuple_element<Index, ArgsTypeForInvoke>::type>
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) {
constexpr auto Info = CommandMeta::ArgumentSerializationInfos[Index];
if constexpr (Info.arg_type == ArgumentType::InData) {
@ -1047,6 +1051,8 @@ namespace ams::sf::impl {
constexpr auto Attributes = CommandMeta::BufferAttributes[Info.buffer_index];
if constexpr (Attributes & SfBufferAttr_In) {
/* TODO: AMS_ABORT_UNLESS()? N does not bother. */
static_assert(std::is_reference<T>::value);
static_assert(std::is_const<typename std::remove_reference<T>::type>::value);
return *reinterpret_cast<const T *>(buffers[Info.buffer_index].GetAddress());
} else if constexpr (Attributes & SfBufferAttr_Out) {
return T(buffers[Info.buffer_index]);
@ -1063,12 +1069,12 @@ namespace ams::sf::impl {
}
template<size_t... Is>
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...>) {
return ArgsType { DeserializeArgumentImpl<Is>(ctx, in_raw_data, out_raw_holder, buffers, out_handles_holder, in_out_objects_holder)..., };
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...>) {
return ArgsTypeForInvoke { DeserializeArgumentImpl<Is>(ctx, in_raw_data, out_raw_holder, buffers, out_handles_holder, in_out_objects_holder)..., };
}
public:
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) {
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>{});
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) {
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>{});
}
};
@ -1118,16 +1124,16 @@ namespace ams::sf::impl {
/* Decoding/Invocation. */
{
typename CommandMeta::ArgsType args_tuple = ImplProcessorType::DeserializeArguments(ctx, in_raw_data, out_raw_holder, buffers, out_handles_holder, in_out_objects_holder);
typename CommandMeta::ArgsTypeForInvoke args_tuple = ImplProcessorType::DeserializeArguments(ctx, in_raw_data, out_raw_holder, buffers, out_handles_holder, in_out_objects_holder);
/* Handle in process ID holder if relevant. */
if constexpr (CommandMeta::HasInProcessIdHolder) {
/* TODO: More precise value than 32? */
static_assert(std::tuple_size<typename CommandMeta::ArgsType>::value <= 32, "Commands must have <= 32 arguments");
static_assert(std::tuple_size<typename CommandMeta::ArgsTypeForInvoke>::value <= 32, "Commands must have <= 32 arguments");
os::ProcessId process_id{ctx.request.pid};
#define _SF_IMPL_PROCESSOR_MARSHAL_PROCESS_ID(n) do { \
using ArgsType = typename CommandMeta::ArgsType; \
if constexpr (n < std::tuple_size<ArgsType>::value) { \
using ArgsTypeForInvoke = typename CommandMeta::ArgsTypeForInvoke; \
if constexpr (n < std::tuple_size<ArgsTypeForInvoke>::value) { \
if constexpr (CommandMeta::template IsInProcessIdHolderIndex<n>) { \
R_TRY(MarshalProcessId(std::get<n>(args_tuple), process_id)); \
} \
@ -1149,7 +1155,7 @@ namespace ams::sf::impl {
sf::IServiceObject * const this_ptr = ctx.srv_obj;
const auto command_result = [this_ptr, invoke_impl, &args_tuple]<size_t ...Ix>(std::index_sequence<Ix...>) ALWAYS_INLINE_LAMBDA {
return invoke_impl(this_ptr, std::forward<typename std::tuple_element<Ix, TrueArgumentsTuple>::type>(std::get<Ix>(args_tuple))...);
}(std::make_index_sequence<std::tuple_size<typename CommandMeta::ArgsType>::value>());
}(std::make_index_sequence<std::tuple_size<typename CommandMeta::ArgsTypeForInvoke>::value>());
if (R_FAILED(command_result)) {
cmif::PointerAndSize out_raw_data;