/* 
  * $Id$ 

  *
  * Copyright (C) 2001-2003 Fhg Fokus
  *
  * This file is part of ser, a free SIP server.
  *
  * ser 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
  *
  * For a license to use the ser software under conditions
  * other than those described here, or to purchase support for this
  * software, please contact iptel.org by e-mail at the following addresses:
  *    info@iptel.org
  *
  * ser 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

  */
 

 #ifndef DB_VAL_H
 #define DB_VAL_H
 
 #include <time.h>

 #include "../str.h"

 
 
 /*
  * Accepted column types
  */
 typedef enum {
 	DB_INT,
         DB_DOUBLE,
 	DB_STRING,

 	DB_STR,

 	DB_DATETIME,

 	DB_BLOB,
 	DB_BITMAP

 } db_type_t;
 
 
 /*
  * Column value structure
  */
 typedef struct {

 	db_type_t type;                /* Type of the value */
 	int nul;                       /* Means that the column in database

 					* has no value 
 					*/

 	union {

 		int           int_val;    /* integer value */
 		double        double_val; /* double value */
 		time_t        time_val;   /* unix time value */
 		const char*   string_val; /* NULL terminated string */
 		str           str_val;    /* str string value */
 		str           blob_val;   /* Blob data */
 		unsigned int  bitmap_val; /* Bitmap data type, 32 flags, should be enough */ 
 	} val;                            /* union of all possible types */

 } db_val_t;
 
 
 /*
  * Useful macros for accessing attributes of db_val structure
  */
 
 #define VAL_TYPE(dv)   ((dv)->type)
 #define VAL_NULL(dv)   ((dv)->nul)
 #define VAL_INT(dv)    ((dv)->val.int_val)
 #define VAL_DOUBLE(dv) ((dv)->val.double_val)
 #define VAL_TIME(dv)   ((dv)->val.time_val)
 #define VAL_STRING(dv) ((dv)->val.string_val)

 #define VAL_STR(dv)    ((dv)->val.str_val)

 #define VAL_BLOB(dv)   ((dv)->val.blob_val)

 #define VAL_BITMAP(dv) ((dv)->val.bitmap_val)

 
 
 /*
  * Convert string to given type
  */

 int str2val(db_type_t _t, db_val_t* _v, const char* _s, int _l);

 
 
 /*
  * Convert given type to string
  */
 int val2str(db_val_t* _v, char* _s, int* _len);
 
 

 #endif /* DB_VAL_H */