/*
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
*/
/**
* @file exchangedb/pg_select_reserves_in_above_serial_id.c
* @brief Implementation of the select_reserves_in_above_serial_id 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_reserves_in_above_serial_id.h"
#include "pg_helper.h"
/**
* Closure for #reserves_in_serial_helper_cb().
*/
struct ReservesInSerialContext
{
/**
* Callback to call.
*/
TALER_EXCHANGEDB_ReserveInCallback cb;
/**
* Closure for @e cb.
*/
void *cb_cls;
/**
* Plugin context.
*/
struct PostgresClosure *pg;
/**
* Status code, set to #GNUNET_SYSERR on hard errors.
*/
enum GNUNET_GenericReturnValue status;
};
/**
* Helper function to be called with the results of a SELECT statement
* that has returned @a num_results results.
*
* @param cls closure of type `struct ReservesInSerialContext`
* @param result the postgres result
* @param num_results the number of results in @a result
*/
static void
reserves_in_serial_helper_cb (void *cls,
PGresult *result,
unsigned int num_results)
{
struct ReservesInSerialContext *risc = cls;
struct PostgresClosure *pg = risc->pg;
for (unsigned int i = 0; istatus = GNUNET_SYSERR;
return;
}
ret = risc->cb (risc->cb_cls,
rowid,
&reserve_pub,
&credit,
sender_account_details,
wire_reference,
execution_date);
GNUNET_PQ_cleanup_result (rs);
if (GNUNET_OK != ret)
break;
}
}
enum GNUNET_DB_QueryStatus
TEH_PG_select_reserves_in_above_serial_id (
void *cls,
uint64_t serial_id,
TALER_EXCHANGEDB_ReserveInCallback cb,
void *cb_cls)
{
struct PostgresClosure *pg = cls;
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_uint64 (&serial_id),
GNUNET_PQ_query_param_end
};
struct ReservesInSerialContext risc = {
.cb = cb,
.cb_cls = cb_cls,
.pg = pg,
.status = GNUNET_OK
};
enum GNUNET_DB_QueryStatus qs;
/* Used in postgres_select_reserves_in_above_serial_id() to obtain inbound
transactions for reserves with serial id '\geq' the given parameter */
PREPARE (pg,
"audit_reserves_in_get_transactions_incr",
"SELECT"
" reserves.reserve_pub"
",wire_reference"
",credit_val"
",credit_frac"
",execution_date"
",payto_uri AS sender_account_details"
",reserve_in_serial_id"
" FROM reserves_in"
" JOIN reserves"
" USING (reserve_pub)"
" JOIN wire_targets"
" ON (wire_source_h_payto = wire_target_h_payto)"
" WHERE reserve_in_serial_id>=$1"
" ORDER BY reserve_in_serial_id;");
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
"audit_reserves_in_get_transactions_incr",
params,
&reserves_in_serial_helper_cb,
&risc);
if (GNUNET_OK != risc.status)
return GNUNET_DB_STATUS_HARD_ERROR;
return qs;
}