Function bdb_delete

modules/db_berkeley/db_berkeley.c:785–903

* Delete a row from table * * To delete ALL rows: * do Not specify any keys, or values, and _n <=0 * */

 *
 */
int bdb_delete(db_con_t* _h, db_key_t* _k, db_op_t* _op, db_val_t* _v, int _n)
{
	tbl_cache_p _tbc = NULL;
	table_p _tp = NULL;
	char kbuf[MAX_ROW_SIZE];
	int ret, klen;
	int *lkey=NULL;
	DBT key,data;
	DB *db;
	DBC *dbcp;

	ret = 0;
	klen=MAX_ROW_SIZE;

	if (_op)
		return ( _bdb_delete_cursor(_h, _k, _op, _v, _n) );

	if ((!_h) || !CON_TABLE(_h))
		return -1;

	_tbc = bdblib_get_table(BDB_CON_CONNECTION(_h), (str*)CON_TABLE(_h));
	if(!_tbc)
	{	LM_WARN("table does not exist!\n");
		return -3;
	}

	_tp = _tbc->dtp;
	if(!_tp)
	{	LM_WARN("table not loaded!\n");
		return -4;
	}

#ifdef BDB_EXTRA_DEBUG
		LM_DBG("DELETE in %.*s\n", _tp->name.len, _tp->name.s );
#endif

	db = _tp->db;
	memset(&key, 0, sizeof(DBT));
	memset(&data, 0, sizeof(DBT));
	memset(kbuf, 0, klen);

	if(!_k || !_v || _n<=0)
	{
		/* Acquire a cursor for the database. */
		if ((ret = db->cursor(db, NULL, &dbcp, DB_WRITECURSOR) ) != 0)
		{	LM_ERR("Error creating cursor\n");
			goto error;
		}

		while ((ret = dbcp->c_get(dbcp, &key, &data, DB_NEXT)) == 0)
		{
			if(!strncasecmp((char*)key.data,"METADATA",8))
				continue;
#ifdef BDB_EXTRA_DEBUG
			LM_DBG("KEY: [%.*s]\n"
				, (int)   key.size
				, (char *)key.data);
#endif