preflight.c (1735B)
1 /* 2 This file is part of TALER 3 (C) 2014--2025 Taler Systems SA 4 5 TALER is free software; you can redistribute it and/or modify it under the 6 terms of the GNU Lesser 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/backenddb/preflight.c 18 * @brief implementation of the preflight functions 19 * @author Christian Grothoff 20 */ 21 #include <gnunet/gnunet_util_lib.h> 22 #include "merchantdb_lib.h" 23 #include "merchant-database/preflight.h" 24 #include "helper.h" 25 26 27 void 28 TALER_MERCHANTDB_preflight ( 29 struct TALER_MERCHANTDB_PostgresContext *pg) 30 { 31 struct GNUNET_PQ_ExecuteStatement es[] = { 32 GNUNET_PQ_make_execute ("ROLLBACK"), 33 GNUNET_PQ_EXECUTE_STATEMENT_END 34 }; 35 36 if (NULL == pg->transaction_name) 37 { 38 GNUNET_PQ_reconnect_if_down (pg->conn); 39 return; /* all good */ 40 } 41 if (GNUNET_OK == 42 GNUNET_PQ_exec_statements (pg->conn, 43 es)) 44 { 45 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 46 "BUG: Preflight check rolled back transaction `%s'!\n", 47 pg->transaction_name); 48 } 49 else 50 { 51 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 52 "BUG: Preflight check failed to rollback transaction `%s'!\n", 53 pg->transaction_name); 54 } 55 pg->transaction_name = NULL; 56 }