75 lines
1.7 KiB
C++
75 lines
1.7 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_I_DISK_LOG_BUFFER_H_
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#define OCEANBASE_CLOG_OB_I_DISK_LOG_BUFFER_H_
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#include "ob_buffer_task.h"
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namespace oceanbase {
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namespace clog {
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class ObDiskBufferTask : public ObIBufferTask {
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public:
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ObDiskBufferTask() : proposal_id_(), buf_(NULL), len_(0), offset_(0)
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{
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need_callback_ = true;
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}
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public:
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void reset();
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void set(char* buf, const int64_t len);
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common::ObProposalID get_proposal_id() const
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{
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return proposal_id_;
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}
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char* get_data_buffer() const
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{
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return buf_;
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}
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int64_t get_data_len() const
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{
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return len_;
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}
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int64_t get_entry_cnt() const
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{
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return 1;
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}
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// st == single thread
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virtual int st_after_consume(const int handle_err) = 0;
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protected:
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int fill_buffer(char* buf, const offset_t offset);
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protected:
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common::ObProposalID proposal_id_;
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char* buf_;
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int64_t len_;
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offset_t offset_;
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private:
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DISALLOW_COPY_AND_ASSIGN(ObDiskBufferTask);
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};
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class ObIDiskLogBuffer {
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public:
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ObIDiskLogBuffer()
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{}
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virtual ~ObIDiskLogBuffer()
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{}
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private:
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virtual int submit(ObIBufferTask* task) = 0;
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};
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}; // end namespace clog
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}; // end namespace oceanbase
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#endif /* OCEANBASE_CLOG_OB_I_DISK_LOG_BUFFER_H_ */
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