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35 lines
659 B
35 lines
659 B
#ifndef LEVELDB_VLOG_READER_H
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#define LEVELDB_VLOG_READER_H
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#include <cstdint>
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#include "leveldb/slice.h"
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#include "leveldb/status.h"
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namespace leveldb {
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class RandomAccessFile;
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namespace vlog {
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class VlogInfo;
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class VlogManager;
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class VlogReader {
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public:
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VlogReader(uint32_t vlog_no);
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~VlogReader() = default;
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/* 在 vlog_offset 处往后读取一条 record 的 value */
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Status Get(uint64_t vlog_offset, std::string* value);
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private:
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VlogInfo* vlog_info_;
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RandomAccessFile* vlog_;
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friend class VlogManager;
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};
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} // namespace vlog
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} // namespace leveldb
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#endif // LEVELDB_VLOG_READER_H
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