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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. |
11 | 11 |
12 #ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_ARRAY_SERIALIZATION_H_ | 12 #ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_ARRAY_SERIALIZATION_H_ |
13 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_ARRAY_SERIALIZATION_H_ | 13 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_ARRAY_SERIALIZATION_H_ |
14 | 14 |
15 #include <string.h> // For |memcpy()|. | 15 #include <string.h> // For |memcpy()|. |
16 #include <type_traits> | 16 #include <type_traits> |
17 #include <vector> | 17 #include <vector> |
18 | 18 |
19 #include "mojo/public/c/system/macros.h" | 19 #include "mojo/public/c/system/macros.h" |
20 #include "mojo/public/cpp/bindings/lib/array_internal.h" | 20 #include "mojo/public/cpp/bindings/lib/array_internal.h" |
21 #include "mojo/public/cpp/bindings/lib/bindings_internal.h" | 21 #include "mojo/public/cpp/bindings/lib/bindings_internal.h" |
22 #include "mojo/public/cpp/bindings/lib/iterator_util.h" | 22 #include "mojo/public/cpp/bindings/lib/iterator_util.h" |
23 #include "mojo/public/cpp/bindings/lib/map_data_internal.h" | 23 #include "mojo/public/cpp/bindings/lib/map_data_internal.h" |
24 #include "mojo/public/cpp/bindings/lib/map_serialization_forward.h" | 24 #include "mojo/public/cpp/bindings/lib/map_serialization_forward.h" |
25 #include "mojo/public/cpp/bindings/lib/string_serialization.h" | 25 #include "mojo/public/cpp/bindings/lib/string_serialization.h" |
26 #include "mojo/public/cpp/bindings/lib/validation_errors.h" | 26 #include "mojo/public/cpp/bindings/lib/validation_errors.h" |
27 | 27 |
28 namespace mojo { | 28 namespace mojo { |
29 | 29 |
30 template <typename Interface> | |
31 InterfaceRequest<Interface> MakeRequest(ScopedMessagePipeHandle handle); | |
32 | |
33 namespace internal { | 30 namespace internal { |
34 | 31 |
35 // The ArraySerializer template contains static methods for serializing |Array|s | 32 // The ArraySerializer template contains static methods for serializing |Array|s |
36 // of various types. These methods include: | 33 // of various types. These methods include: |
37 // * size_t GetSerializedSize(..) | 34 // * size_t GetSerializedSize(..) |
38 // Computes the size of the serialized version of the |Array|. | 35 // Computes the size of the serialized version of the |Array|. |
39 // * void SerializeElements(..) | 36 // * void SerializeElements(..) |
40 // Takes an |Iterator| and a size and serializes it. | 37 // Takes an |Iterator| and a size and serializes it. |
41 // * void DeserializeElements(..) | 38 // * void DeserializeElements(..) |
42 // Takes a pointer to an |Array_Data| and deserializes it into a given | 39 // Takes a pointer to an |Array_Data| and deserializes it into a given |
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228 } | 225 } |
229 | 226 |
230 return ValidationError::NONE; | 227 return ValidationError::NONE; |
231 } | 228 } |
232 | 229 |
233 static void DeserializeElements(Array_Data<MessagePipeHandle>* input, | 230 static void DeserializeElements(Array_Data<MessagePipeHandle>* input, |
234 Array<InterfaceRequest<I>>* output) { | 231 Array<InterfaceRequest<I>>* output) { |
235 auto result = Array<InterfaceRequest<I>>::New(input->size()); | 232 auto result = Array<InterfaceRequest<I>>::New(input->size()); |
236 for (size_t i = 0; i < input->size(); ++i) | 233 for (size_t i = 0; i < input->size(); ++i) |
237 result.at(i) = | 234 result.at(i) = |
238 MakeRequest<I>(MakeScopedHandle(FetchAndReset(&input->at(i)))).Pass(); | 235 InterfaceRequest<I>(MakeScopedHandle(FetchAndReset(&input->at(i)))) |
| 236 .Pass(); |
239 output->Swap(&result); | 237 output->Swap(&result); |
240 } | 238 } |
241 }; | 239 }; |
242 | 240 |
243 // Serializes and deserializes arrays of interfaces (interface handles). | 241 // Serializes and deserializes arrays of interfaces (interface handles). |
244 template <typename Interface> | 242 template <typename Interface> |
245 struct ArraySerializer<InterfaceHandle<Interface>, Interface_Data, false> { | 243 struct ArraySerializer<InterfaceHandle<Interface>, Interface_Data, false> { |
246 static size_t GetSerializedSize( | 244 static size_t GetSerializedSize( |
247 const Array<InterfaceHandle<Interface>>& input) { | 245 const Array<InterfaceHandle<Interface>>& input) { |
248 return sizeof(Array_Data<Interface_Data>) + | 246 return sizeof(Array_Data<Interface_Data>) + |
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532 if (input) { | 530 if (input) { |
533 internal::ArraySerializer<E, F>::DeserializeElements(input, output); | 531 internal::ArraySerializer<E, F>::DeserializeElements(input, output); |
534 } else { | 532 } else { |
535 output->reset(); | 533 output->reset(); |
536 } | 534 } |
537 } | 535 } |
538 | 536 |
539 } // namespace mojo | 537 } // namespace mojo |
540 | 538 |
541 #endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_ARRAY_SERIALIZATION_H_ | 539 #endif // MOJO_PUBLIC_CPP_BINDINGS_LIB_ARRAY_SERIALIZATION_H_ |
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