pg_event_listen.h (1681B)
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_event_listen.h 18 * @brief implementation of the event_listen function for Postgres 19 * @author Christian Grothoff 20 */ 21 #ifndef PG_EVENT_LISTEN_H 22 #define PG_EVENT_LISTEN_H 23 24 #include <taler/taler_util.h> 25 #include <taler/taler_json_lib.h> 26 #include "donaudb_plugin.h" 27 /** 28 * Register callback to be invoked on events of type @a es. 29 * 30 * @param cls database context to use 31 * @param timeout how long until to generate a timeout event 32 * @param es specification of the event to listen for 33 * @param cb function to call when the event happens, possibly 34 * multiple times (until cancel is invoked) 35 * @param cb_cls closure for @a cb 36 * @return handle useful to cancel the listener 37 */ 38 struct GNUNET_DB_EventHandler * 39 DH_PG_event_listen (void *cls, 40 struct GNUNET_TIME_Relative timeout, 41 const struct GNUNET_DB_EventHeaderP *es, 42 GNUNET_DB_EventCallback cb, 43 void *cb_cls); 44 45 #endif