MySQLInterface.h

/*
 * Copyright (c) 2015 Pavel Vainerman.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, version 2.1.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
// --------------------------------------------------------------------------
//----------------------------------------------------------------------------
#ifndef MySQLInterface_H_
#define MySQLInterface_H_
// ---------------------------------------------------------------------------
#include <string>
#include <vector>
#include <deque>
#include <iostream>
//#warning Для использования mysql_create нужен define USE_OLD_FUNCTIONS
//#define USE_OLD_FUNCTIONS
#include <mysql/mysql.h>
#include <DBInterface.h>
// -------------------------------------------------------------------------
namespace uniset
{
    // ----------------------------------------------------------------------------
    // no thread safety
    class MySQLInterface:
        public DBNetInterface
    {
        public:
 
            MySQLInterface( size_t maxbuf = 4 * 1024 );
            ~MySQLInterface();
 
            virtual bool nconnect( const std::string& host, const std::string& user, const std::string& pswd,
                                   const std::string& dbname, unsigned int port = 0 ) override;
            virtual bool close() override;
 
            bool query_ok( const std::string& q );
 
            // \param finalize - освободить буфер после запроса
            virtual DBResult query( const std::string& q ) override;
 
            virtual const std::string lastQuery() override;
            virtual bool insert( const std::string& q ) override;
 
            virtual bool ping() const override;
 
            virtual bool isConnection() const override;
 
            virtual double insert_id() override;
 
            virtual const std::string error() override;
 
            // *******************
            const char* gethostinfo() const;
        protected:
 
        private:
 
            DBResult makeResult( MYSQL_RES* r, bool finalize = true );
            MYSQL* mysql;
            std::string lastQ;
            bool connected;
            char* qbuf = { nullptr };
            size_t qbufLen = { 0 };
    };
    // ----------------------------------------------------------------------------------
} // end of namespace uniset
// ----------------------------------------------------------------------------------
#endif