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/*
This file is part of TALER
Copyright (C) 2022-2023 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_select_batch_deposits_missing_wire.c
* @brief Implementation of the select_batch_deposits_missing_wire 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_select_batch_deposits_missing_wire.h"
#include "pg_helper.h"
/**
* Closure for #missing_wire_cb().
*/
struct MissingWireContext
{
/**
* Function to call per result.
*/
TALER_EXCHANGEDB_WireMissingCallback cb;
/**
* Closure for @e cb.
*/
void *cb_cls;
/**
* Plugin context.
*/
struct PostgresClosure *pg;
/**
* Set to #GNUNET_SYSERR on error.
*/
enum GNUNET_GenericReturnValue status;
};
/**
* Invoke the callback for each result.
*
* @param cls a `struct MissingWireContext *`
* @param result SQL result
* @param num_results number of rows in @a result
*/
static void
missing_wire_cb (void *cls,
PGresult *result,
unsigned int num_results)
{
struct MissingWireContext *mwc = cls;
struct PostgresClosure *pg = mwc->pg;
for (unsigned int i = 0; i<num_results; i++)
{
uint64_t batch_deposit_serial_id;
struct GNUNET_TIME_Timestamp deadline;
struct TALER_PaytoHashP wire_target_h_payto;
struct TALER_Amount total_amount;
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_uint64 ("batch_deposit_serial_id",
&batch_deposit_serial_id),
GNUNET_PQ_result_spec_auto_from_type ("wire_target_h_payto",
&wire_target_h_payto),
GNUNET_PQ_result_spec_timestamp ("deadline",
&deadline),
TALER_PQ_RESULT_SPEC_AMOUNT ("total_amount",
&total_amount),
GNUNET_PQ_result_spec_end
};
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
i))
{
GNUNET_break (0);
mwc->status = GNUNET_SYSERR;
return;
}
mwc->cb (mwc->cb_cls,
batch_deposit_serial_id,
&total_amount,
&wire_target_h_payto,
deadline);
GNUNET_PQ_cleanup_result (rs);
}
}
enum GNUNET_DB_QueryStatus
TEH_PG_select_batch_deposits_missing_wire (
void *cls,
uint64_t min_batch_deposit_serial_id,
TALER_EXCHANGEDB_WireMissingCallback cb,
void *cb_cls)
{
struct PostgresClosure *pg = cls;
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_uint64 (&min_batch_deposit_serial_id),
GNUNET_PQ_query_param_end
};
struct MissingWireContext mwc = {
.cb = cb,
.cb_cls = cb_cls,
.pg = pg,
.status = GNUNET_OK
};
enum GNUNET_DB_QueryStatus qs;
PREPARE (pg,
"deposits_get_deposits_missing_wire",
"SELECT"
" batch_deposit_serial_id"
",wire_target_h_payto"
",deadline"
",total_amount"
" FROM exchange_do_select_deposits_missing_wire"
" ($1);");
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
"deposits_get_deposits_missing_wire",
params,
&missing_wire_cb,
&mwc);
if (GNUNET_OK != mwc.status)
return GNUNET_DB_STATUS_HARD_ERROR;
return qs;
}
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