text: /**
   * Copyright (c) 2021 OceanBase
   * OceanBase CE is licensed under Mulan PubL v2.
   * You can use this software according to the terms and conditions of the Mulan PubL v2.
   * You may obtain a copy of Mulan PubL v2 at:
   *          http://license.coscl.org.cn/MulanPubL-2.0
   * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
   * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
   * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
   * See the Mulan PubL v2 for more details.
   */
  
  #ifndef OB_PARTITION_META_BLOCK_READER_H_
  #define OB_PARTITION_META_BLOCK_READER_H_
  #include "blocksstable/ob_meta_block_reader.h"
  #include "lib/allocator/page_arena.h"
  
  namespace oceanbase {
  namespace storage {
  class ObPartitionService;
  class ObPartitionMetaBlockReader : public blocksstable::ObMetaBlockReader {
  public:
    ObPartitionMetaBlockReader(ObPartitionService& partition_service);
    virtual ~ObPartitionMetaBlockReader();
  
  protected:
    virtual int parse(const blocksstable::ObMacroBlockCommonHeader& common_header,
        const blocksstable::ObLinkedMacroBlockHeader& linked_header, const char* buf, const int64_t buf_len);
  
  private:
    ObPartitionService& partition_service_;
    common::ObArenaAllocator allocator_;
    char* read_buf_;
    int64_t offset_;
    int64_t buf_size_;
  };
  
  }  // namespace storage
  }  // namespace oceanbase
  
  #endif /* OB_PARTITION_META_BLOCK_READER_H_ */
  