syncdb_preflight.c (1663B)
1 /* 2 This file is part of TALER 3 (C) 2014--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 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 syncdb/syncdb_preflight.c 18 * @brief preflight check for sync database 19 * @author Christian Grothoff 20 */ 21 #include "syncdb_pg.h" 22 23 24 enum GNUNET_GenericReturnValue 25 SYNCDB_preflight (void) 26 { 27 struct GNUNET_PQ_ExecuteStatement es[] = { 28 GNUNET_PQ_make_execute ("ROLLBACK"), 29 GNUNET_PQ_EXECUTE_STATEMENT_END 30 }; 31 32 if (NULL == pg->transaction_name) 33 { 34 GNUNET_PQ_reconnect_if_down (pg->conn); 35 return GNUNET_OK; /* all good */ 36 } 37 if (GNUNET_OK == 38 GNUNET_PQ_exec_statements (pg->conn, 39 es)) 40 { 41 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 42 "BUG: Preflight check rolled back transaction `%s'!\n", 43 pg->transaction_name); 44 } 45 else 46 { 47 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, 48 "BUG: Preflight check failed to rollback transaction `%s'!\n", 49 pg->transaction_name); 50 } 51 pg->transaction_name = NULL; 52 return GNUNET_NO; 53 } 54 55 56 /* end of syncdb_preflight.c */