52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#ifndef OCEANBASE_CLOG_OB_LOG_PARTITION_META_READER_
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#define OCEANBASE_CLOG_OB_LOG_PARTITION_META_READER_
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#include "ob_log_direct_reader.h"
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#include "ob_log_reader_interface.h"
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namespace oceanbase {
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namespace clog {
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class ObLogInfoBlockReader : public ObILogInfoBlockReader {
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public:
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ObLogInfoBlockReader();
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virtual ~ObLogInfoBlockReader();
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int init(ObILogDirectReader* direct_reader);
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bool is_inited()
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{
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return is_inited_;
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}
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void reuse();
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void destroy();
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int read_info_block_data(const ObReadParam& param, ObReadRes& res)
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{
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ObReadCost dummy_cost;
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return read_info_block_data(param, res, dummy_cost);
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}
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int read_info_block_data(const ObReadParam& param, ObReadRes& res, ObReadCost& cost);
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private:
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int direct_read_info_block_data(const ObReadParam& param, ObReadRes& res, ObReadCost& cost);
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private:
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bool is_inited_;
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ObILogDirectReader* direct_reader_;
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ObAlignedBuffer result_buffer_;
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ObReadBuf rbuf_;
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};
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} // namespace clog
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} // end namespace oceanbase
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#endif // OCEANBASE_CLOG_OB_LOG_PARTITION_META_READER_
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