Line data    Source code

       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 "taler/platform.h"
      22              : #include "taler/taler_error_codes.h"
      23              : #include "taler/taler_dbevents.h"
      24              : #include "taler/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           95 : 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           95 :   struct PostgresClosure *pg = cls;
      47              : 
      48           95 :   return GNUNET_PQ_event_listen (pg->conn,
      49              :                                  es,
      50              :                                  timeout,
      51              :                                  cb,
      52              :                                  cb_cls);
      53              : }