| // Copyright 2015 The Chromium OS 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 UPDATE_ENGINE_PAYLOAD_GENERATOR_OPERATIONS_GENERATOR_H_ |
| #define UPDATE_ENGINE_PAYLOAD_GENERATOR_OPERATIONS_GENERATOR_H_ |
| |
| #include <vector> |
| |
| #include <base/macros.h> |
| |
| #include "update_engine/payload_generator/annotated_operation.h" |
| #include "update_engine/payload_generator/payload_generation_config.h" |
| |
| namespace chromeos_update_engine { |
| |
| class OperationsGenerator { |
| public: |
| virtual ~OperationsGenerator() = default; |
| |
| // This method generates two lists of operations, one for the rootfs and one |
| // for the kernel and stores the generated operations in |rootfs_ops| and |
| // |kernel_ops| respectivelly. These operations are generated based on the |
| // given |config|. The operations should be applied in the order specified in |
| // the list, and they respect the payload version and type (delta or full) |
| // specified in |config|. |
| // The operations generated will refer to offsets in the file |data_file_fd|, |
| // where this function stores the output, but not necessarily in the same |
| // order as they appear in the |rootfs_ops| and |kernel_ops|. |
| // This function stores the amount of data written to |data_file_fd| in |
| // |data_file_size|. |
| virtual bool GenerateOperations( |
| const PayloadGenerationConfig& config, |
| int data_file_fd, |
| off_t* data_file_size, |
| std::vector<AnnotatedOperation>* rootfs_ops, |
| std::vector<AnnotatedOperation>* kernel_ops) = 0; |
| |
| protected: |
| OperationsGenerator() = default; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(OperationsGenerator); |
| }; |
| |
| } // namespace chromeos_update_engine |
| |
| #endif // UPDATE_ENGINE_PAYLOAD_GENERATOR_OPERATIONS_GENERATOR_H_ |