pg_rollback.c (1515B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2022 Taler Systems SA 4 5 TALER is free software; you can redistribute it and/or modify it under the 6 terms of the GNU General Public License as published by the Free Software 7 Foundation; either version 3, or (at your option) any later version. 8 9 TALER is distributed in the hope that it will be useful, but WITHOUT ANY 10 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR 11 A PARTICULAR PURPOSE. See the GNU General Public License for more details. 12 13 You should have received a copy of the GNU General Public License along with 14 TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> 15 */ 16 /** 17 * @file exchangedb/pg_rollback.c 18 * @brief Implementation of the rollback function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "taler/exchange-database/rollback.h" 22 #include "helper.h" 23 24 25 void 26 TALER_EXCHANGEDB_rollback (struct TALER_EXCHANGEDB_PostgresContext *pg) 27 { 28 struct GNUNET_PQ_ExecuteStatement es[] = { 29 GNUNET_PQ_make_execute ("ROLLBACK"), 30 GNUNET_PQ_EXECUTE_STATEMENT_END 31 }; 32 33 if (NULL == pg->transaction_name) 34 { 35 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 36 "Skipping rollback, no transaction active\n"); 37 return; 38 } 39 GNUNET_log (GNUNET_ERROR_TYPE_INFO, 40 "Rolling back transaction\n"); 41 GNUNET_break (GNUNET_OK == 42 GNUNET_PQ_exec_statements (pg->conn, 43 es)); 44 pg->transaction_name = NULL; 45 }