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Diffstat (limited to 'mojo/public/cpp/bindings/lib/array_serialization.h')
-rw-r--r-- | mojo/public/cpp/bindings/lib/array_serialization.h | 301 |
1 files changed, 0 insertions, 301 deletions
diff --git a/mojo/public/cpp/bindings/lib/array_serialization.h b/mojo/public/cpp/bindings/lib/array_serialization.h deleted file mode 100644 index eacf298..0000000 --- a/mojo/public/cpp/bindings/lib/array_serialization.h +++ /dev/null @@ -1,301 +0,0 @@ -// Copyright 2014 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_ARRAY_SERIALIZATION_H_ -#define MOJO_PUBLIC_CPP_BINDINGS_LIB_ARRAY_SERIALIZATION_H_ - -#include <string.h> // For |memcpy()|. - -#include <vector> - -#include "mojo/public/c/system/macros.h" -#include "mojo/public/cpp/bindings/lib/array_internal.h" -#include "mojo/public/cpp/bindings/lib/map_serialization.h" -#include "mojo/public/cpp/bindings/lib/string_serialization.h" -#include "mojo/public/cpp/bindings/lib/template_util.h" -#include "mojo/public/cpp/bindings/lib/validation_errors.h" - -namespace mojo { - -template <typename E> -inline size_t GetSerializedSize_(const Array<E>& input); - -// Because ValidateParams requires explicit argument specification, the -// argument-dependent loopup technique used to omit namespace when calling -// Serialize_() doesn't seem to work. Therefore, this function is named -// differently from those Serialize_() overloads. -template <typename ValidateParams, typename E, typename F> -inline void SerializeArray_(Array<E> input, - internal::Buffer* buf, - internal::Array_Data<F>** output); - -template <typename ValueValidateParams, - typename KeyWrapperType, - typename ValueWrapperType, - typename KeySerializationType, - typename ValueSerializationType> -inline void SerializeMap_( - Map<KeyWrapperType, ValueWrapperType> input, - internal::Buffer* buf, - internal::Map_Data<KeySerializationType, ValueSerializationType>** output); - -template <typename E, typename F> -inline void Deserialize_(internal::Array_Data<F>* data, Array<E>* output); - -namespace internal { - -template <typename E, typename F, bool move_only = IsMoveOnlyType<E>::value> -struct ArraySerializer; - -template <typename E, typename F> -struct ArraySerializer<E, F, false> { - static_assert(sizeof(E) == sizeof(F), "Incorrect array serializer"); - static size_t GetSerializedSize(const Array<E>& input) { - return sizeof(Array_Data<F>) + Align(input.size() * sizeof(E)); - } - template <bool element_is_nullable, typename ElementValidateParams> - static void SerializeElements(Array<E> input, - Buffer* buf, - Array_Data<F>* output) { - static_assert(!element_is_nullable, - "Primitive type should be non-nullable"); - static_assert((IsSame<ElementValidateParams, NoValidateParams>::value), - "Primitive type should not have array validate params"); - - if (input.size()) - memcpy(output->storage(), &input.storage()[0], input.size() * sizeof(E)); - } - static void DeserializeElements(Array_Data<F>* input, Array<E>* output) { - std::vector<E> result(input->size()); - if (input->size()) - memcpy(&result[0], input->storage(), input->size() * sizeof(E)); - output->Swap(&result); - } -}; - -template <> -struct ArraySerializer<bool, bool, false> { - static size_t GetSerializedSize(const Array<bool>& input) { - return sizeof(Array_Data<bool>) + Align((input.size() + 7) / 8); - } - template <bool element_is_nullable, typename ElementValidateParams> - static void SerializeElements(Array<bool> input, - Buffer* buf, - Array_Data<bool>* output) { - static_assert(!element_is_nullable, - "Primitive type should be non-nullable"); - static_assert((IsSame<ElementValidateParams, NoValidateParams>::value), - "Primitive type should not have array validate params"); - - // TODO(darin): Can this be a memcpy somehow instead of a bit-by-bit copy? - for (size_t i = 0; i < input.size(); ++i) - output->at(i) = input[i]; - } - static void DeserializeElements(Array_Data<bool>* input, - Array<bool>* output) { - Array<bool> result(input->size()); - // TODO(darin): Can this be a memcpy somehow instead of a bit-by-bit copy? - for (size_t i = 0; i < input->size(); ++i) - result.at(i) = input->at(i); - output->Swap(&result); - } -}; - -template <typename H> -struct ArraySerializer<ScopedHandleBase<H>, H, true> { - static size_t GetSerializedSize(const Array<ScopedHandleBase<H>>& input) { - return sizeof(Array_Data<H>) + Align(input.size() * sizeof(H)); - } - template <bool element_is_nullable, typename ElementValidateParams> - static void SerializeElements(Array<ScopedHandleBase<H>> input, - Buffer* buf, - Array_Data<H>* output) { - static_assert((IsSame<ElementValidateParams, NoValidateParams>::value), - "Handle type should not have array validate params"); - - for (size_t i = 0; i < input.size(); ++i) { - output->at(i) = input[i].release(); // Transfer ownership of the handle. - MOJO_INTERNAL_DLOG_SERIALIZATION_WARNING( - !element_is_nullable && !output->at(i).is_valid(), - VALIDATION_ERROR_UNEXPECTED_INVALID_HANDLE, - MakeMessageWithArrayIndex( - "invalid handle in array expecting valid handles", - input.size(), - i)); - } - } - static void DeserializeElements(Array_Data<H>* input, - Array<ScopedHandleBase<H>>* output) { - Array<ScopedHandleBase<H>> result(input->size()); - for (size_t i = 0; i < input->size(); ++i) - result.at(i) = MakeScopedHandle(FetchAndReset(&input->at(i))); - output->Swap(&result); - } -}; - -// This template must only apply to pointer mojo entity (structs and arrays). -// This is done by ensuring that WrapperTraits<S>::DataType is a pointer. -template <typename S> -struct ArraySerializer<S, - typename internal::EnableIf< - internal::IsPointer<typename internal::WrapperTraits< - S>::DataType>::value, - typename internal::WrapperTraits<S>::DataType>::type, - true> { - typedef typename internal::RemovePointer< - typename internal::WrapperTraits<S>::DataType>::type S_Data; - static size_t GetSerializedSize(const Array<S>& input) { - size_t size = sizeof(Array_Data<S_Data*>) + - input.size() * sizeof(internal::StructPointer<S_Data>); - for (size_t i = 0; i < input.size(); ++i) - size += GetSerializedSize_(input[i]); - return size; - } - template <bool element_is_nullable, typename ElementValidateParams> - static void SerializeElements(Array<S> input, - Buffer* buf, - Array_Data<S_Data*>* output) { - for (size_t i = 0; i < input.size(); ++i) { - S_Data* element; - SerializeCaller<S, ElementValidateParams>::Run( - input[i].Pass(), buf, &element); - output->at(i) = element; - MOJO_INTERNAL_DLOG_SERIALIZATION_WARNING( - !element_is_nullable && !element, - VALIDATION_ERROR_UNEXPECTED_NULL_POINTER, - MakeMessageWithArrayIndex( - "null in array expecting valid pointers", input.size(), i)); - } - } - static void DeserializeElements(Array_Data<S_Data*>* input, - Array<S>* output) { - Array<S> result(input->size()); - for (size_t i = 0; i < input->size(); ++i) { - S element; - Deserialize_(input->at(i), &element); - result[i] = element.Pass(); - } - output->Swap(&result); - } - - private: - template <typename T, typename Params> - struct SerializeCaller { - static void Run(T input, - Buffer* buf, - typename internal::WrapperTraits<T>::DataType* output) { - static_assert((IsSame<Params, NoValidateParams>::value), - "Struct type should not have array validate params"); - - Serialize_(input.Pass(), buf, output); - } - }; - - template <typename T, typename Params> - struct SerializeCaller<Array<T>, Params> { - static void Run(Array<T> input, - Buffer* buf, - typename Array<T>::Data_** output) { - SerializeArray_<Params>(input.Pass(), buf, output); - } - }; - - template <typename T, typename U, typename Params> - struct SerializeCaller<Map<T, U>, Params> { - static void Run(Map<T, U> input, - Buffer* buf, - typename Map<T, U>::Data_** output) { - SerializeMap_<Params>(input.Pass(), buf, output); - } - }; -}; - -template <> -struct ArraySerializer<String, String_Data*, false> { - static size_t GetSerializedSize(const Array<String>& input) { - size_t size = sizeof(Array_Data<String_Data*>) + - input.size() * sizeof(internal::StringPointer); - for (size_t i = 0; i < input.size(); ++i) - size += GetSerializedSize_(input[i]); - return size; - } - template <bool element_is_nullable, typename ElementValidateParams> - static void SerializeElements(Array<String> input, - Buffer* buf, - Array_Data<String_Data*>* output) { - static_assert( - (IsSame<ElementValidateParams, - ArrayValidateParams<0, false, NoValidateParams>>::value), - "String type has unexpected array validate params"); - - for (size_t i = 0; i < input.size(); ++i) { - String_Data* element; - Serialize_(input[i], buf, &element); - output->at(i) = element; - MOJO_INTERNAL_DLOG_SERIALIZATION_WARNING( - !element_is_nullable && !element, - VALIDATION_ERROR_UNEXPECTED_NULL_POINTER, - MakeMessageWithArrayIndex( - "null in array expecting valid strings", input.size(), i)); - } - } - static void DeserializeElements(Array_Data<String_Data*>* input, - Array<String>* output) { - Array<String> result(input->size()); - for (size_t i = 0; i < input->size(); ++i) - Deserialize_(input->at(i), &result[i]); - output->Swap(&result); - } -}; - -} // namespace internal - -template <typename E> -inline size_t GetSerializedSize_(const Array<E>& input) { - if (!input) - return 0; - typedef typename internal::WrapperTraits<E>::DataType F; - return internal::ArraySerializer<E, F>::GetSerializedSize(input); -} - -template <typename ValidateParams, typename E, typename F> -inline void SerializeArray_(Array<E> input, - internal::Buffer* buf, - internal::Array_Data<F>** output) { - if (input) { - MOJO_INTERNAL_DLOG_SERIALIZATION_WARNING( - ValidateParams::expected_num_elements != 0 && - input.size() != ValidateParams::expected_num_elements, - internal::VALIDATION_ERROR_UNEXPECTED_ARRAY_HEADER, - internal::MakeMessageWithExpectedArraySize( - "fixed-size array has wrong number of elements", - input.size(), - ValidateParams::expected_num_elements)); - - internal::Array_Data<F>* result = - internal::Array_Data<F>::New(input.size(), buf); - if (result) { - internal::ArraySerializer<E, F>::template SerializeElements< - ValidateParams::element_is_nullable, - typename ValidateParams::ElementValidateParams>( - internal::Forward(input), buf, result); - } - *output = result; - } else { - *output = nullptr; - } -} - -template <typename E, typename F> -inline void Deserialize_(internal::Array_Data<F>* input, Array<E>* output) { - if (input) { - internal::ArraySerializer<E, F>::DeserializeElements(input, output); - } else { - output->reset(); - } -} - -} // namespace mojo - -#endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_ARRAY_SERIALIZATION_H_ |