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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_event_listen.c 18 : * @brief Implementation of the event_listen 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_event_listen.h" 26 : #include "pg_helper.h" 27 : 28 : /** 29 : * Register callback to be invoked on events of type @a es. 30 : * 31 : * @param cls database context to use 32 : * @param timeout how long until to generate a timeout event 33 : * @param es specification of the event to listen for 34 : * @param cb function to call when the event happens, possibly 35 : * multiple times (until cancel is invoked) 36 : * @param cb_cls closure for @a cb 37 : * @return handle useful to cancel the listener 38 : */ 39 : struct GNUNET_DB_EventHandler * 40 108 : TEH_PG_event_listen (void *cls, 41 : struct GNUNET_TIME_Relative timeout, 42 : const struct GNUNET_DB_EventHeaderP *es, 43 : GNUNET_DB_EventCallback cb, 44 : void *cb_cls) 45 : { 46 108 : struct PostgresClosure *pg = cls; 47 : 48 108 : return GNUNET_PQ_event_listen (pg->conn, 49 : es, 50 : timeout, 51 : cb, 52 : cb_cls); 53 : }