//
// Created by lloyd on 2020/10/14.
//

#ifndef GTCVR_GTPGCNN_H
#define GTCVR_GTPGCNN_H

#include "libpq-fe.h"

class gtpgcnn {
public:
    std::string cnnstr;
private:
    PGconn *cnn;
    PGresult *res;
   /* std::mutex mtx;
    //0:init status;1: refrence status -1:already close
    int isalreadycloseres;*/
public:

    gtpgcnn();
    void openCnn();

    bool closeCnn();

    bool readContent(std::string sql);

    bool writeContent(std::string sql);

    int getRowsNumFromResult();

    int getColsNumFromResult();

    std::string getValueFromResult(int row, int col);

    void clearRes();

    char *getValueFromResultChar(int row, int col);
};


#endif //GTCVR_GTPGCNN_H