Ken Rockot | fc4fdb2 | 2018-07-12 10:37:11 +0900 | [diff] [blame] | 1 | // Copyright 2018 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef IPC_MESSAGE_VIEW_H_ |
| 6 | #define IPC_MESSAGE_VIEW_H_ |
| 7 | |
| 8 | #include <vector> |
| 9 | |
| 10 | #include "base/component_export.h" |
| 11 | #include "base/containers/span.h" |
| 12 | #include "base/macros.h" |
| 13 | #include "ipc/ipc_message.h" |
| 14 | #include "mojo/public/cpp/base/big_buffer.h" |
| 15 | #include "mojo/public/interfaces/bindings/native_struct.mojom.h" |
| 16 | |
| 17 | namespace IPC { |
| 18 | |
| 19 | class COMPONENT_EXPORT(IPC_MOJOM) MessageView { |
| 20 | public: |
| 21 | MessageView(); |
| 22 | MessageView( |
| 23 | const Message& message, |
| 24 | base::Optional<std::vector<mojo::native::SerializedHandlePtr>> handles); |
| 25 | MessageView( |
| 26 | mojo_base::BigBufferView buffer_view, |
| 27 | base::Optional<std::vector<mojo::native::SerializedHandlePtr>> handles); |
| 28 | MessageView(MessageView&&); |
| 29 | ~MessageView(); |
| 30 | |
| 31 | MessageView& operator=(MessageView&&); |
| 32 | |
| 33 | const char* data() const { |
| 34 | return reinterpret_cast<const char*>(buffer_view_.data().data()); |
| 35 | } |
| 36 | |
| 37 | uint32_t size() const { |
| 38 | return static_cast<uint32_t>(buffer_view_.data().size()); |
| 39 | } |
| 40 | |
| 41 | mojo_base::BigBufferView TakeBufferView() { return std::move(buffer_view_); } |
| 42 | |
| 43 | base::Optional<std::vector<mojo::native::SerializedHandlePtr>> TakeHandles() { |
| 44 | return std::move(handles_); |
| 45 | } |
| 46 | |
| 47 | private: |
| 48 | mojo_base::BigBufferView buffer_view_; |
| 49 | base::Optional<std::vector<mojo::native::SerializedHandlePtr>> handles_; |
| 50 | |
| 51 | DISALLOW_COPY_AND_ASSIGN(MessageView); |
| 52 | }; |
| 53 | |
| 54 | } // namespace IPC |
| 55 | |
| 56 | #endif // IPC_MESSAGE_VIEW_H_ |