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/*
This file is part of GNUnet
Copyright (C) 2016 GNUnet e.V.
GNUnet 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 3, or (at your
option) any later version.
GNUnet 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 GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file my/my_query_helper.c
* @brief library to help with access to a MySQL database
* @author Christian Grothoff
*/
#include "platform.h"
#include <mysql/mysql.h>
#include "gnunet_my_lib.h"
/**
* Function called to convert input argument into SQL parameters.
*
* @param cls closure
* @param pq data about the query
* @param qbind array of parameters to initialize
* @return -1 on error
*/
static int
pq_conv_fixed_size (void *cls,
const struct GNUNET_MY_QueryParam *qp,
MYSQL_BIND *qbind)
{
GNUNET_assert (1 == qp->num_params);
qbind->buffer = (void *) qp->data;
qbind->buffer_length = qp->data_len;
qbind->length = (unsigned long *) &qp->data_len;
return 0;
}
/**
* Generate query parameter for a buffer @a ptr of
* @a ptr_size bytes.
*
* @param ptr pointer to the query parameter to pass
* @oaran ptr_size number of bytes in @a ptr
*/
struct GNUNET_MY_QueryParam
GNUNET_MY_query_param_fixed_size (const void *ptr,
size_t ptr_size)
{
struct GNUNET_MY_QueryParam qp = {
&pq_conv_fixed_size,
NULL,
1,
ptr,
(unsigned long) ptr_size
};
return qp;
}
/* end of my_query_helper.c */
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