115 lines
4.0 KiB
C
115 lines
4.0 KiB
C
/*
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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_insert_reserve_closed.c
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* @brief Implementation of the insert_reserve_closed 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_insert_reserve_closed.h"
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#include "pg_helper.h"
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#include "pg_reserves_get.h"
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#include "pg_reserves_update.h"
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enum GNUNET_DB_QueryStatus
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TEH_PG_insert_reserve_closed (
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void *cls,
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const struct TALER_ReservePublicKeyP *reserve_pub,
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struct GNUNET_TIME_Timestamp execution_date,
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const char *receiver_account,
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const struct TALER_WireTransferIdentifierRawP *wtid,
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const struct TALER_Amount *amount_with_fee,
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const struct TALER_Amount *closing_fee,
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uint64_t close_request_row)
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{
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struct PostgresClosure *pg = cls;
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struct TALER_EXCHANGEDB_Reserve reserve;
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enum GNUNET_DB_QueryStatus qs;
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struct TALER_PaytoHashP h_payto;
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TALER_payto_hash (receiver_account,
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&h_payto);
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{
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struct GNUNET_PQ_QueryParam params[] = {
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GNUNET_PQ_query_param_auto_from_type (reserve_pub),
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GNUNET_PQ_query_param_timestamp (&execution_date),
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GNUNET_PQ_query_param_auto_from_type (wtid),
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GNUNET_PQ_query_param_auto_from_type (&h_payto),
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TALER_PQ_query_param_amount (amount_with_fee),
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TALER_PQ_query_param_amount (closing_fee),
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GNUNET_PQ_query_param_uint64 (&close_request_row),
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GNUNET_PQ_query_param_end
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};
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/* Used in #postgres_insert_reserve_closed() */
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PREPARE (pg,
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"reserves_close_insert",
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"INSERT INTO reserves_close "
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"(reserve_pub"
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",execution_date"
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",wtid"
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",wire_target_h_payto"
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",amount_val"
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",amount_frac"
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",closing_fee_val"
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",closing_fee_frac"
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",close_request_row"
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") VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9);");
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qs = GNUNET_PQ_eval_prepared_non_select (pg->conn,
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"reserves_close_insert",
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params);
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}
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if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT != qs)
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return qs;
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/* update reserve balance */
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reserve.pub = *reserve_pub;
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if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT !=
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(qs = TEH_PG_reserves_get (cls,
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&reserve)))
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{
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/* Existence should have been checked before we got here... */
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GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR == qs);
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if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
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qs = GNUNET_DB_STATUS_HARD_ERROR;
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return qs;
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}
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{
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enum TALER_AmountArithmeticResult ret;
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ret = TALER_amount_subtract (&reserve.balance,
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&reserve.balance,
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amount_with_fee);
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if (ret < 0)
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{
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/* The reserve history was checked to make sure there is enough of a balance
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left before we tried this; however, concurrent operations may have changed
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the situation by now. We should re-try the transaction. */
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GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
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"Closing of reserve `%s' refused due to balance mismatch. Retrying.\n",
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TALER_B2S (reserve_pub));
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return GNUNET_DB_STATUS_HARD_ERROR;
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}
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GNUNET_break (TALER_AAR_RESULT_ZERO == ret);
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}
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return TEH_PG_reserves_update (cls,
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&reserve);
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}
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