preflight.c (1870B)
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/preflight.c 18 * @brief Implementation of the preflight 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 "preflight.h" 26 #include "helper.h" 27 28 29 enum GNUNET_GenericReturnValue 30 DONAUDB_preflight (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 (GNUNET_OK != 38 DONAUDB_internal_setup (ctx)) 39 return GNUNET_SYSERR; 40 if (NULL == ctx->transaction_name) 41 return GNUNET_OK; /* all good */ 42 if (GNUNET_OK == 43 GNUNET_PQ_exec_statements (ctx->conn, 44 es)) 45 { 46 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 47 "BUG: Preflight check rolled back transaction `%s'!\n", 48 ctx->transaction_name); 49 } 50 else 51 { 52 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 53 "BUG: Preflight check failed to rollback transaction `%s'!\n", 54 ctx->transaction_name); 55 } 56 ctx->transaction_name = NULL; 57 return GNUNET_NO; 58 }