2022-11-14 13:35:56 +01:00
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/*
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This file is part of TALER
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Copyright (C) 2022 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file exchangedb/pg_do_melt.c
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* @brief Implementation of the do_melt function for Postgres
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* @author Christian Grothoff
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*/
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#include "platform.h"
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#include "taler_error_codes.h"
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#include "taler_dbevents.h"
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#include "taler_pq_lib.h"
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#include "pg_do_melt.h"
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#include "pg_helper.h"
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enum GNUNET_DB_QueryStatus
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TEH_PG_do_melt (
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void *cls,
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const struct TALER_RefreshMasterSecretP *rms,
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struct TALER_EXCHANGEDB_Refresh *refresh,
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uint64_t known_coin_id,
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bool *zombie_required,
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bool *balance_ok)
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{
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struct PostgresClosure *pg = cls;
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struct GNUNET_PQ_QueryParam params[] = {
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NULL == rms
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? GNUNET_PQ_query_param_null ()
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: GNUNET_PQ_query_param_auto_from_type (rms),
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TALER_PQ_query_param_amount (&refresh->amount_with_fee),
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GNUNET_PQ_query_param_auto_from_type (&refresh->rc),
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GNUNET_PQ_query_param_auto_from_type (&refresh->coin.coin_pub),
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GNUNET_PQ_query_param_auto_from_type (&refresh->coin_sig),
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GNUNET_PQ_query_param_uint64 (&known_coin_id),
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GNUNET_PQ_query_param_uint32 (&refresh->noreveal_index),
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GNUNET_PQ_query_param_bool (*zombie_required),
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GNUNET_PQ_query_param_end
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};
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bool is_null;
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struct GNUNET_PQ_ResultSpec rs[] = {
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GNUNET_PQ_result_spec_bool ("balance_ok",
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balance_ok),
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GNUNET_PQ_result_spec_bool ("zombie_required",
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zombie_required),
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GNUNET_PQ_result_spec_allow_null (
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GNUNET_PQ_result_spec_uint32 ("noreveal_index",
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&refresh->noreveal_index),
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&is_null),
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GNUNET_PQ_result_spec_end
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};
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enum GNUNET_DB_QueryStatus qs;
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2023-03-31 13:50:32 +02:00
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/* Used in #postgres_do_melt() to melt a coin. */
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2022-11-14 13:35:56 +01:00
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PREPARE (pg,
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"call_melt",
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"SELECT "
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" out_balance_ok AS balance_ok"
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",out_zombie_bad AS zombie_required"
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",out_noreveal_index AS noreveal_index"
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" FROM exchange_do_melt"
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" ($1,$2,$3,$4,$5,$6,$7,$8,$9);");
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qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
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"call_melt",
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params,
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rs);
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if (is_null)
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refresh->noreveal_index = UINT32_MAX; /* set to very invalid value */
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return qs;
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}
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