| // Copyright 2020 The Fuchsia 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 SRC_STORAGE_LIB_DISK_INSPECTOR_INCLUDE_DISK_INSPECTOR_BUFFER_FACTORY_H_ |
| #define SRC_STORAGE_LIB_DISK_INSPECTOR_INCLUDE_DISK_INSPECTOR_BUFFER_FACTORY_H_ |
| |
| #include <lib/fpromise/result.h> |
| #include <zircon/types.h> |
| |
| #include <memory> |
| |
| #include <storage/buffer/block_buffer.h> |
| |
| namespace disk_inspector { |
| |
| // Generic interface to dispense block buffers. Classes or functions that need |
| // to use block buffers and intend to be operating system agnostic should |
| // take in a |BufferFactory| to create generic BlockBuffers. |
| class BufferFactory { |
| public: |
| virtual ~BufferFactory() = default; |
| |
| // Creates a block buffer of size |capacity| to store in |out|. |
| virtual fpromise::result<std::unique_ptr<storage::BlockBuffer>, zx_status_t> CreateBuffer( |
| size_t capacity) const = 0; |
| }; |
| |
| } // namespace disk_inspector |
| |
| #endif // SRC_STORAGE_LIB_DISK_INSPECTOR_INCLUDE_DISK_INSPECTOR_BUFFER_FACTORY_H_ |