152 lines
4.3 KiB
C
152 lines
4.3 KiB
C
/*
|
|
This file is part of TALER
|
|
Copyright (C) 2022 Taler Systems SA
|
|
|
|
TALER 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.
|
|
|
|
TALER 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
|
|
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
|
|
*/
|
|
/**
|
|
* @file exchangedb/pg_find_aggregation_transient.c
|
|
* @brief Implementation of the find_aggregation_transient function for Postgres
|
|
* @author Christian Grothoff
|
|
*/
|
|
#include "platform.h"
|
|
#include "taler_error_codes.h"
|
|
#include "taler_dbevents.h"
|
|
#include "taler_pq_lib.h"
|
|
#include "pg_find_aggregation_transient.h"
|
|
#include "pg_helper.h"
|
|
|
|
|
|
/**
|
|
* Closure for #get_refunds_cb().
|
|
*/
|
|
struct FindAggregationTransientContext
|
|
{
|
|
/**
|
|
* Function to call on each result.
|
|
*/
|
|
TALER_EXCHANGEDB_TransientAggregationCallback cb;
|
|
|
|
/**
|
|
* Closure for @a cb.
|
|
*/
|
|
void *cb_cls;
|
|
|
|
/**
|
|
* Plugin context.
|
|
*/
|
|
struct PostgresClosure *pg;
|
|
|
|
/**
|
|
* Set to #GNUNET_SYSERR on error.
|
|
*/
|
|
enum GNUNET_GenericReturnValue status;
|
|
};
|
|
|
|
|
|
/**
|
|
* Function to be called with the results of a SELECT statement
|
|
* that has returned @a num_results results.
|
|
*
|
|
* @param cls closure of type `struct SelectRefundContext *`
|
|
* @param result the postgres result
|
|
* @param num_results the number of results in @a result
|
|
*/
|
|
static void
|
|
get_transients_cb (void *cls,
|
|
PGresult *result,
|
|
unsigned int num_results)
|
|
{
|
|
struct FindAggregationTransientContext *srctx = cls;
|
|
struct PostgresClosure *pg = srctx->pg;
|
|
|
|
for (unsigned int i = 0; i<num_results; i++)
|
|
{
|
|
struct TALER_Amount amount;
|
|
char *payto_uri;
|
|
struct TALER_WireTransferIdentifierRawP wtid;
|
|
struct TALER_MerchantPublicKeyP merchant_pub;
|
|
struct GNUNET_PQ_ResultSpec rs[] = {
|
|
GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
|
|
&merchant_pub),
|
|
GNUNET_PQ_result_spec_auto_from_type ("wtid_raw",
|
|
&wtid),
|
|
GNUNET_PQ_result_spec_string ("payto_uri",
|
|
&payto_uri),
|
|
TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
|
|
&amount),
|
|
GNUNET_PQ_result_spec_end
|
|
};
|
|
bool cont;
|
|
|
|
if (GNUNET_OK !=
|
|
GNUNET_PQ_extract_result (result,
|
|
rs,
|
|
i))
|
|
{
|
|
GNUNET_break (0);
|
|
srctx->status = GNUNET_SYSERR;
|
|
return;
|
|
}
|
|
cont = srctx->cb (srctx->cb_cls,
|
|
payto_uri,
|
|
&wtid,
|
|
&merchant_pub,
|
|
&amount);
|
|
GNUNET_free (payto_uri);
|
|
if (! cont)
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
enum GNUNET_DB_QueryStatus
|
|
TEH_PG_find_aggregation_transient (
|
|
void *cls,
|
|
const struct TALER_PaytoHashP *h_payto,
|
|
TALER_EXCHANGEDB_TransientAggregationCallback cb,
|
|
void *cb_cls)
|
|
{
|
|
struct PostgresClosure *pg = cls;
|
|
enum GNUNET_DB_QueryStatus qs;
|
|
struct GNUNET_PQ_QueryParam params[] = {
|
|
GNUNET_PQ_query_param_auto_from_type (h_payto),
|
|
GNUNET_PQ_query_param_end
|
|
};
|
|
struct FindAggregationTransientContext srctx = {
|
|
.cb = cb,
|
|
.cb_cls = cb_cls,
|
|
.pg = pg,
|
|
.status = GNUNET_OK
|
|
};
|
|
/* Used in #postgres_find_aggregation_transient() */
|
|
PREPARE (pg,
|
|
"find_transient_aggregations",
|
|
"SELECT"
|
|
" amount_val"
|
|
" ,amount_frac"
|
|
" ,wtid_raw"
|
|
" ,merchant_pub"
|
|
" ,payto_uri"
|
|
" FROM aggregation_transient atr"
|
|
" JOIN wire_targets wt USING (wire_target_h_payto)"
|
|
" WHERE atr.wire_target_h_payto=$1;");
|
|
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
|
|
"find_transient_aggregations",
|
|
params,
|
|
&get_transients_cb,
|
|
&srctx);
|
|
if (GNUNET_SYSERR == srctx.status)
|
|
return GNUNET_DB_STATUS_HARD_ERROR;
|
|
return qs;
|
|
}
|