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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // TODO(vardhan): Currently, the logic for serializing a mojom type exists in | 5 // TODO(vardhan): Currently, the logic for serializing a mojom type exists in |
6 // two places: the C++ code generator template, and here. However, most types | 6 // two places: the C++ code generator template, and here. However, most types |
7 // are serialized the same way within Arrays or outside, with the exception of | 7 // are serialized the same way within Arrays or outside, with the exception of |
8 // |bool|. Consider defining serialization/deserialization traits for each | 8 // |bool|. Consider defining serialization/deserialization traits for each |
9 // serializable type and call those traits from here. This should help us | 9 // serializable type and call those traits from here. This should help us |
10 // remove most of the ArraySerializer<> specializations here. | 10 // remove most of the ArraySerializer<> specializations here. |
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233 static void DeserializeElements(Array_Data<MessagePipeHandle>* input, | 233 static void DeserializeElements(Array_Data<MessagePipeHandle>* input, |
234 Array<InterfaceRequest<I>>* output) { | 234 Array<InterfaceRequest<I>>* output) { |
235 auto result = Array<InterfaceRequest<I>>::New(input->size()); | 235 auto result = Array<InterfaceRequest<I>>::New(input->size()); |
236 for (size_t i = 0; i < input->size(); ++i) | 236 for (size_t i = 0; i < input->size(); ++i) |
237 result.at(i) = | 237 result.at(i) = |
238 MakeRequest<I>(MakeScopedHandle(FetchAndReset(&input->at(i)))).Pass(); | 238 MakeRequest<I>(MakeScopedHandle(FetchAndReset(&input->at(i)))).Pass(); |
239 output->Swap(&result); | 239 output->Swap(&result); |
240 } | 240 } |
241 }; | 241 }; |
242 | 242 |
243 // Serializes and deserializes arrays of interfaces (interface pointers). | 243 // Serializes and deserializes arrays of interfaces (interface handles). |
244 template <typename Interface> | 244 template <typename Interface> |
245 struct ArraySerializer<InterfacePtr<Interface>, Interface_Data, false> { | 245 struct ArraySerializer<InterfaceHandle<Interface>, Interface_Data, false> { |
246 static size_t GetSerializedSize(const Array<InterfacePtr<Interface>>& input) { | 246 static size_t GetSerializedSize( |
| 247 const Array<InterfaceHandle<Interface>>& input) { |
247 return sizeof(Array_Data<Interface_Data>) + | 248 return sizeof(Array_Data<Interface_Data>) + |
248 Align(input.size() * sizeof(Interface_Data)); | 249 Align(input.size() * sizeof(Interface_Data)); |
249 } | 250 } |
250 | 251 |
251 template <typename Iterator> | 252 template <typename Iterator> |
252 static ValidationError SerializeElements( | 253 static ValidationError SerializeElements( |
253 Iterator it, | 254 Iterator it, |
254 size_t num_elements, | 255 size_t num_elements, |
255 Buffer* buf, | 256 Buffer* buf, |
256 Array_Data<Interface_Data>* output, | 257 Array_Data<Interface_Data>* output, |
257 const ArrayValidateParams* validate_params) { | 258 const ArrayValidateParams* validate_params) { |
258 MOJO_DCHECK(!validate_params->element_validate_params) | 259 MOJO_DCHECK(!validate_params->element_validate_params) |
259 << "Interface type should not have array validate params"; | 260 << "Interface type should not have array validate params"; |
260 | 261 |
261 for (size_t i = 0; i < num_elements; ++i, ++it) { | 262 for (size_t i = 0; i < num_elements; ++i, ++it) { |
262 // Transfer ownership of the handle. | 263 // Transfer ownership of the handle. |
263 internal::InterfacePointerToData(it->Pass(), &output->at(i)); | 264 internal::InterfaceHandleToData(it->Pass(), &output->at(i)); |
264 if (!validate_params->element_is_nullable && | 265 if (!validate_params->element_is_nullable && |
265 !output->at(i).handle.is_valid()) { | 266 !output->at(i).handle.is_valid()) { |
266 MOJO_INTERNAL_DLOG_SERIALIZATION_WARNING( | 267 MOJO_INTERNAL_DLOG_SERIALIZATION_WARNING( |
267 ValidationError::UNEXPECTED_INVALID_HANDLE, | 268 ValidationError::UNEXPECTED_INVALID_HANDLE, |
268 MakeMessageWithArrayIndex( | 269 MakeMessageWithArrayIndex( |
269 "invalid handle in array expecting valid handles", num_elements, | 270 "invalid handle in array expecting valid handles", num_elements, |
270 i)); | 271 i)); |
271 return ValidationError::UNEXPECTED_INVALID_HANDLE; | 272 return ValidationError::UNEXPECTED_INVALID_HANDLE; |
272 } | 273 } |
273 } | 274 } |
274 | 275 |
275 return ValidationError::NONE; | 276 return ValidationError::NONE; |
276 } | 277 } |
277 | 278 |
278 static void DeserializeElements(Array_Data<Interface_Data>* input, | 279 static void DeserializeElements(Array_Data<Interface_Data>* input, |
279 Array<InterfacePtr<Interface>>* output) { | 280 Array<InterfaceHandle<Interface>>* output) { |
280 auto result = Array<InterfacePtr<Interface>>::New(input->size()); | 281 auto result = Array<InterfaceHandle<Interface>>::New(input->size()); |
281 for (size_t i = 0; i < input->size(); ++i) | 282 for (size_t i = 0; i < input->size(); ++i) |
282 internal::InterfaceDataToPointer(&input->at(i), &result.at(i)); | 283 internal::InterfaceDataToHandle(&input->at(i), &result.at(i)); |
283 output->Swap(&result); | 284 output->Swap(&result); |
284 } | 285 } |
285 }; | 286 }; |
286 | 287 |
287 // This template must only apply to pointer mojo entity (structs, arrays, | 288 // This template must only apply to pointer mojo entity (structs, arrays, |
288 // strings). This is done by ensuring that WrapperTraits<S>::DataType is a | 289 // strings). This is done by ensuring that WrapperTraits<S>::DataType is a |
289 // pointer. | 290 // pointer. |
290 template <typename S> | 291 template <typename S> |
291 struct ArraySerializer< | 292 struct ArraySerializer< |
292 S, | 293 S, |
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531 if (input) { | 532 if (input) { |
532 internal::ArraySerializer<E, F>::DeserializeElements(input, output); | 533 internal::ArraySerializer<E, F>::DeserializeElements(input, output); |
533 } else { | 534 } else { |
534 output->reset(); | 535 output->reset(); |
535 } | 536 } |
536 } | 537 } |
537 | 538 |
538 } // namespace mojo | 539 } // namespace mojo |
539 | 540 |
540 #endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_ARRAY_SERIALIZATION_H_ | 541 #endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_ARRAY_SERIALIZATION_H_ |
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