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kamailio/modules/db_unixodbc/connection.h

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/*
* $Id$
*
* UNIXODBC module
*
* Copyright (C) 2005-2006 Marco Lorrai
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*
* History:
* --------
* 2005-12-01 initial commit (chgen)
*/
#ifndef MY_CON_H
#define MY_CON_H
#include "../../lib/srdb1/db_pool.h"
#include "../../lib/srdb1/db_id.h"
#include "../../lib/srdb1/db_val.h"
#include <time.h>
#include <stdio.h>
#include <string.h>
#include <sql.h>
#include <sqlext.h>
#include <sqlucode.h>
#define STRN_LEN 1024
typedef struct strn
{
unsigned int buflen;
char *s;
} strn;
struct my_con
{
struct db_id* id; /*!< Connection identifier */
unsigned int ref; /*!< Reference count */
struct pool_con* next; /*!< Next connection in the pool */
SQLHENV env; /*!< Environment handle */
SQLHSTMT stmt_handle; /*!< Actual result */
SQLHDBC dbc; /*!< Connection representation */
char** row; /*!< Actual row in the result */
time_t timestamp; /*!< Timestamp of last query */
};
/*
* Some convenience wrappers
*/
#define CON_RESULT(db_con) (((struct my_con*)((db_con)->tail))->stmt_handle)
#define CON_CONNECTION(db_con) (((struct my_con*)((db_con)->tail))->dbc)
#define CON_ROW(db_con) (((struct my_con*)((db_con)->tail))->row)
#define CON_TIMESTAMP(db_con) (((struct my_con*)((db_con)->tail))->timestamp)
#define CON_ID(db_con) (((struct my_con*)((db_con)->tail))->id)
#define CON_ENV(db_con) (((struct my_con*)((db_con)->tail))->env)
#define MAX_CONN_STR_LEN 2048
/*
* Create a new connection structure,
* open the UNIXODBC connection and set reference count to 1
*/
struct my_con* db_unixodbc_new_connection(struct db_id* id);
/*
* Close the connection and release memory
*/
void db_unixodbc_free_connection(struct my_con* con);
char *db_unixodbc_build_conn_str(const struct db_id* id, char *buf);
void db_unixodbc_extract_error(const char *fn, const SQLHANDLE handle, const SQLSMALLINT type, char* stret);
/*
* Allocate a new row of cells, without any data
*/
strn * db_unixodbc_new_cellrow(size_t ncols);
/*
* Free row of cells and all associated memory
*/
void db_unixodbc_free_cellrow(size_t ncols, strn * row);
/*
* Load ODBC cell data into a single cell
*/
int db_unixodbc_load_cell(const db1_con_t* _h, int colindex, strn * cell, const db_type_t _t);
#endif /* MY_CON_H */