db_mysql/row.c

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/* 
 * $Id: row.c 5423 2009-01-05 18:29:35Z henningw $ 
 *
 * MySQL module row related functions
 *
 * Copyright (C) 2001-2003 FhG Fokus
 * Copyright (C) 2008 1&1 Internet AG
 *
 * This file is part of Kamailio, a free SIP server.
 *
 * Kamailio is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version
 *
 * Kamailio 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/*! \file
 *  \brief DB_MYSQL :: Row related functions
 *  \ingroup db_mysql
 *  Module: \ref db_mysql
 */

#include "../../dprint.h"
#include "../../mem/mem.h"
#include "../../db/db_row.h"
#include "../../db/db_val.h"
#include "my_con.h"
#include "val.h"
#include "row.h"

/*!
 * \brief Convert a row from result into DB API representation
 * \param _h database connection
 * \param _res database result in the DB API representation
 * \param _r database result row
 * \return 0 on success, -1 on failure
 */
int db_mysql_convert_row(const db_con_t* _h, db_res_t* _res, db_row_t* _r)
{
   unsigned long* lengths;
   int i;

   if ((!_h) || (!_res) || (!_r)) {
      LM_ERR("invalid parameter value\n");
      return -1;
   }

   if (db_allocate_row(_res, _r) != 0) {
      LM_ERR("could not allocate row");
      return -2;
   }
   
   lengths = mysql_fetch_lengths(CON_RESULT(_h));

   for(i = 0; i < RES_COL_N(_res); i++) {
      if (db_str2val(RES_TYPES(_res)[i], &(ROW_VALUES(_r)[i]),
             ((MYSQL_ROW)CON_ROW(_h))[i], lengths[i], 0) < 0) {
         LM_ERR("failed to convert value\n");
         LM_DBG("free row at %p\n", _r);
         db_free_row(_r);
         return -3;
      }
   }
   return 0;
}