| // Copyright 2013 The Flutter 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 FLUTTER_FML_MAPPING_H_ |
| #define FLUTTER_FML_MAPPING_H_ |
| |
| #include <initializer_list> |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "flutter/fml/build_config.h" |
| #include "flutter/fml/file.h" |
| #include "flutter/fml/macros.h" |
| #include "flutter/fml/unique_fd.h" |
| |
| namespace fml { |
| |
| class Mapping { |
| public: |
| Mapping(); |
| |
| virtual ~Mapping(); |
| |
| virtual size_t GetSize() const = 0; |
| |
| virtual const uint8_t* GetMapping() const = 0; |
| |
| private: |
| FML_DISALLOW_COPY_AND_ASSIGN(Mapping); |
| }; |
| |
| class FileMapping : public Mapping { |
| public: |
| enum class Protection { |
| kRead, |
| kWrite, |
| kExecute, |
| }; |
| |
| FileMapping(const fml::UniqueFD& fd, |
| std::initializer_list<Protection> protection = { |
| Protection::kRead}); |
| |
| ~FileMapping() override; |
| |
| size_t GetSize() const override; |
| |
| const uint8_t* GetMapping() const override; |
| |
| uint8_t* GetMutableMapping(); |
| |
| private: |
| size_t size_ = 0; |
| uint8_t* mapping_ = nullptr; |
| uint8_t* mutable_mapping_ = nullptr; |
| |
| #if OS_WIN |
| fml::UniqueFD mapping_handle_; |
| #endif |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(FileMapping); |
| }; |
| |
| class DataMapping : public Mapping { |
| public: |
| DataMapping(std::vector<uint8_t> data); |
| |
| ~DataMapping() override; |
| |
| size_t GetSize() const override; |
| |
| const uint8_t* GetMapping() const override; |
| |
| private: |
| std::vector<uint8_t> data_; |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(DataMapping); |
| }; |
| |
| class NonOwnedMapping : public Mapping { |
| public: |
| NonOwnedMapping(const uint8_t* data, size_t size) |
| : data_(data), size_(size) {} |
| |
| size_t GetSize() const override; |
| |
| const uint8_t* GetMapping() const override; |
| |
| private: |
| const uint8_t* const data_; |
| const size_t size_; |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(NonOwnedMapping); |
| }; |
| |
| } // namespace fml |
| |
| #endif // FLUTTER_FML_MAPPING_H_ |