pg_preflight.h (1748B)
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 donaudb/pg_preflight.h 18 * @brief implementation of the preflight function for Postgres 19 * @author Christian Grothoff 20 */ 21 #ifndef PG_PREFLIGTH_H 22 #define PG_PREFLIGTH_H 23 24 #include <taler/taler_util.h> 25 #include <taler/taler_json_lib.h> 26 #include "donaudb_plugin.h" 27 28 29 /** 30 * Do a pre-flight check that we are not in an uncommitted transaction. 31 * If we are, try to commit the previous transaction and output a warning. 32 * Does not return anything, as we will continue regardless of the outcome. 33 * 34 * @param cls the `struct PostgresClosure` with the plugin-specific state 35 * @return #GNUNET_OK if everything is fine 36 * #GNUNET_NO if a transaction was rolled back 37 * #GNUNET_SYSERR on hard errors 38 */ 39 enum GNUNET_GenericReturnValue 40 DH_PG_preflight (void *cls); 41 42 43 struct PostgresClosure; 44 45 46 /** 47 * Connect to the database if the connection does not exist yet. 48 * 49 * @param pg the plugin-specific state 50 * @return #GNUNET_OK on success 51 */ 52 enum GNUNET_GenericReturnValue 53 DH_PG_internal_setup (struct PostgresClosure *pg); 54 55 56 #endif