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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/pg_gc.c 18 : * @brief Implementation of the gc function for Postgres 19 : * @author Christian Grothoff 20 : */ 21 : #include "platform.h" 22 : #include "taler_error_codes.h" 23 : #include "taler_dbevents.h" 24 : #include "taler_pq_lib.h" 25 : #include "pg_gc.h" 26 : #include "pg_helper.h" 27 : 28 : 29 : enum GNUNET_GenericReturnValue 30 33 : TEH_PG_gc (void *cls) 31 : { 32 33 : struct PostgresClosure *pg = cls; 33 33 : struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get (); 34 : struct GNUNET_TIME_Absolute long_ago; 35 33 : struct GNUNET_PQ_QueryParam params[] = { 36 33 : GNUNET_PQ_query_param_absolute_time (&long_ago), 37 33 : GNUNET_PQ_query_param_absolute_time (&now), 38 : GNUNET_PQ_query_param_end 39 : }; 40 : struct GNUNET_PQ_Context *conn; 41 : enum GNUNET_GenericReturnValue ret; 42 : 43 : /* Keep wire fees for 10 years, that should always 44 : be enough _and_ they are tiny so it does not 45 : matter to make this tight */ 46 33 : long_ago = GNUNET_TIME_absolute_subtract ( 47 : now, 48 : GNUNET_TIME_relative_multiply ( 49 : GNUNET_TIME_UNIT_YEARS, 50 : 10)); 51 : { 52 33 : struct GNUNET_PQ_ExecuteStatement es[] = { 53 33 : GNUNET_PQ_make_try_execute ("SET search_path TO exchange;"), 54 : GNUNET_PQ_EXECUTE_STATEMENT_END 55 : }; 56 33 : struct GNUNET_PQ_PreparedStatement ps[] = { 57 33 : GNUNET_PQ_make_prepare ("run_gc", 58 : "CALL" 59 : " exchange_do_gc" 60 : " ($1,$2);"), 61 : GNUNET_PQ_PREPARED_STATEMENT_END 62 : }; 63 : 64 33 : conn = GNUNET_PQ_connect_with_cfg (pg->cfg, 65 : "exchangedb-postgres", 66 : NULL, 67 : es, 68 : ps); 69 : } 70 33 : if (NULL == conn) 71 0 : return GNUNET_SYSERR; 72 33 : ret = GNUNET_OK; 73 33 : if (0 > GNUNET_PQ_eval_prepared_non_select (conn, 74 : "run_gc", 75 : params)) 76 0 : ret = GNUNET_SYSERR; 77 33 : GNUNET_PQ_disconnect (conn); 78 33 : return ret; 79 : }