gc.c (2604B)
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 exchangedb/gc.c 18 * @brief Implementation of the gc function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "taler/taler_pq_lib.h" 22 #include "exchange-database/gc.h" 23 #include "helper.h" 24 25 26 enum GNUNET_GenericReturnValue 27 TALER_EXCHANGEDB_gc (struct TALER_EXCHANGEDB_PostgresContext *pg) 28 { 29 struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get (); 30 struct GNUNET_TIME_Absolute long_ago; 31 struct GNUNET_PQ_QueryParam params[] = { 32 GNUNET_PQ_query_param_absolute_time (&long_ago), 33 GNUNET_PQ_query_param_absolute_time (&now), 34 GNUNET_PQ_query_param_end 35 }; 36 struct GNUNET_PQ_Context *conn; 37 enum GNUNET_GenericReturnValue ret; 38 39 /* Keep wire fees for 10 years, that should always 40 be enough _and_ they are tiny so it does not 41 matter to make this tight */ 42 long_ago = GNUNET_TIME_absolute_subtract ( 43 now, 44 GNUNET_TIME_relative_multiply ( 45 GNUNET_TIME_UNIT_YEARS, 46 10)); 47 { 48 struct GNUNET_PQ_ExecuteStatement es[] = { 49 GNUNET_PQ_make_try_execute ("SET search_path TO exchange;"), 50 GNUNET_PQ_EXECUTE_STATEMENT_END 51 }; 52 struct GNUNET_PQ_PreparedStatement ps[] = { 53 GNUNET_PQ_make_prepare ("run_gc", 54 "CALL" 55 " exchange_do_gc" 56 " ($1,$2);"), 57 GNUNET_PQ_PREPARED_STATEMENT_END 58 }; 59 60 conn = GNUNET_PQ_connect_with_cfg (pg->cfg, 61 "exchangedb-postgres", 62 NULL, 63 es, 64 ps); 65 } 66 if (NULL == conn) 67 return GNUNET_SYSERR; 68 ret = GNUNET_OK; 69 if (0 > GNUNET_PQ_eval_prepared_non_select (conn, 70 "run_gc", 71 params)) 72 ret = GNUNET_SYSERR; 73 GNUNET_PQ_disconnect (conn); 74 return ret; 75 }