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72 lignes
2.2 KiB
72 lignes
2.2 KiB
#include "port/port_stdcxx.h"
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#include "db/db_impl.h"
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#include <cstdint>
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#include <cstdio>
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#include <deque>
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#include <map>
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#include <set>
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#include <string>
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#include "leveldb/db.h"
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#include "leveldb/env.h"
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#include "leveldb/options.h"
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#include "leveldb/slice.h"
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#include "leveldb/status.h"
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#include <shared_mutex>
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# ifndef test_DB_H
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# define test_DB_H
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namespace testdb {
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using namespace leveldb;
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enum IndexStatus{
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Creating,
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Deleting,
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Exist,
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NotExist
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};
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class testDB {
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private:
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leveldb::DB *kvDB_;
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// leveldb::DB *metaDB_;
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// leveldb::DB *indexDB_;
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std::string dbname_;
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const Options *options_;
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Env *env_;
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public:
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friend class Request;
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friend class testsReq;
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friend class iCreateReq;
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friend class iDeleteReq;
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friend class DeleteReq;
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friend class BatchReq;
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//用的时候必须testDB *db = new testDB()再open，不能像之前一样DB *db
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// testDB() : indexDB_(nullptr), kvDB_(nullptr), metaDB_(nullptr) {};
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testDB() : kvDB_(nullptr) { }
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~testDB();
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/*lab1的要求，作为db派生类要实现的虚函数*/
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Status Put(const WriteOptions &options, const Slice &key, const Slice &value) ;
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Status PutFields(const WriteOptions &, const Slice &key, const FieldArray &tests) ;
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Status Delete(const WriteOptions &options, const Slice &key) ;
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Status Write(const WriteOptions &options, WriteBatch *updates) ;
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Status Get(const ReadOptions &options, const Slice &key, std::string *value) ;
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Status GetFields(const ReadOptions &options, const Slice &key, FieldArray *tests) ;
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std::vector<std::string> FindKeysByField(Field &test) ;
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Iterator * NewIterator(const ReadOptions &options) ;
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const Snapshot * GetSnapshot() ;
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void ReleaseSnapshot(const Snapshot *snapshot) ;
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bool GetProperty(const Slice &property, std::string *value) ;
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void GetApproximateSizes(const Range *range, int n, uint64_t *sizes) ;
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void CompactRange(const Slice *begin, const Slice *end) ;
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static Status OpentestDB(Options& options,const std::string& name,testDB** dbptr);
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};
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Status DestroyDB(const std::string& name,
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const Options& options);
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} // end of namespace
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# endif
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