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#pragma once
#include <lmdb.h>
#include <string>
#include <QString>
class Database {
public:
Database(const QString &path);
~Database();
MDB_txn *startTransaction();
void endTransaction(MDB_txn *transaction);
void write(const std::string &sKey, const std::string &sValue, MDB_txn *transaction);
//Perhaps prefer iterators (assuming we need to be able to match multiple values
void read(const std::string &sKey, const std::function<void(const std::string)> &);
private:
MDB_env *env;
MDB_dbi dbi;
};
/*
* This opens the db for a single read transaction.
*
* The lifetime of all read values is tied to this transaction.
*/
class ReadTransaction {
public:
ReadTransaction(const QString &path);
~ReadTransaction();
void read(const std::string &sKey, const std::function<void(void *ptr, int size)> &);
private:
MDB_env *env;
MDB_dbi dbi;
MDB_txn *txn;
};
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