rollback.c (1605B)
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 src/donaudb/rollback.c 18 * @brief Implementation of the rollback function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include <donau_config.h> 22 #include <taler/taler_error_codes.h> 23 #include <taler/taler_dbevents.h> 24 #include <taler/taler_pq_lib.h> 25 #include "rollback.h" 26 #include "helper.h" 27 28 29 void 30 DONAUDB_rollback (struct DONAUDB_PostgresContext *ctx) 31 { 32 struct GNUNET_PQ_ExecuteStatement es[] = { 33 GNUNET_PQ_make_execute ("ROLLBACK"), 34 GNUNET_PQ_EXECUTE_STATEMENT_END 35 }; 36 37 if (NULL == ctx->transaction_name) 38 { 39 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 40 "Skipping rollback, no transaction active\n"); 41 return; 42 } 43 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 44 "Rolling back transaction\n"); 45 GNUNET_break (GNUNET_OK == 46 GNUNET_PQ_exec_statements (ctx->conn, 47 es)); 48 ctx->transaction_name = NULL; 49 }