Line data    Source code

       1              : /*
       2              :    This file is part of TALER
       3              :    Copyright (C) 2022-2023 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/select_batch_deposits_missing_wire.c
      18              :  * @brief Implementation of the select_batch_deposits_missing_wire function for Postgres
      19              :  * @author Christian Grothoff
      20              :  */
      21              : #include "taler/taler_pq_lib.h"
      22              : #include "exchange-database/select_batch_deposits_missing_wire.h"
      23              : #include "helper.h"
      24              : 
      25              : /**
      26              :  * Closure for #missing_wire_cb().
      27              :  */
      28              : struct MissingWireContext
      29              : {
      30              :   /**
      31              :    * Function to call per result.
      32              :    */
      33              :   TALER_EXCHANGEDB_WireMissingCallback cb;
      34              : 
      35              :   /**
      36              :    * Closure for @e cb.
      37              :    */
      38              :   void *cb_cls;
      39              : 
      40              :   /**
      41              :    * Plugin context.
      42              :    */
      43              :   struct TALER_EXCHANGEDB_PostgresContext *pg;
      44              : 
      45              :   /**
      46              :    * Set to #GNUNET_SYSERR on error.
      47              :    */
      48              :   enum GNUNET_GenericReturnValue status;
      49              : };
      50              : 
      51              : 
      52              : /**
      53              :  * Invoke the callback for each result.
      54              :  *
      55              :  * @param cls a `struct MissingWireContext *`
      56              :  * @param result SQL result
      57              :  * @param num_results number of rows in @a result
      58              :  */
      59              : static void
      60            0 : missing_wire_cb (void *cls,
      61              :                  PGresult *result,
      62              :                  unsigned int num_results)
      63              : {
      64            0 :   struct MissingWireContext *mwc = cls;
      65            0 :   struct TALER_EXCHANGEDB_PostgresContext *pg = mwc->pg;
      66              : 
      67            0 :   for (unsigned int i = 0; i<num_results; i++)
      68              :   {
      69              :     uint64_t batch_deposit_serial_id;
      70              :     struct GNUNET_TIME_Timestamp deadline;
      71              :     struct TALER_FullPaytoHashP wire_target_h_payto;
      72              :     struct TALER_Amount total_amount;
      73            0 :     struct GNUNET_PQ_ResultSpec rs[] = {
      74            0 :       GNUNET_PQ_result_spec_uint64 ("batch_deposit_serial_id",
      75              :                                     &batch_deposit_serial_id),
      76            0 :       GNUNET_PQ_result_spec_auto_from_type ("wire_target_h_payto",
      77              :                                             &wire_target_h_payto),
      78            0 :       GNUNET_PQ_result_spec_timestamp ("deadline",
      79              :                                        &deadline),
      80            0 :       TALER_PQ_RESULT_SPEC_AMOUNT ("total_amount",
      81              :                                    &total_amount),
      82              :       GNUNET_PQ_result_spec_end
      83              :     };
      84              : 
      85            0 :     if (GNUNET_OK !=
      86            0 :         GNUNET_PQ_extract_result (result,
      87              :                                   rs,
      88              :                                   i))
      89              :     {
      90            0 :       GNUNET_break (0);
      91            0 :       mwc->status = GNUNET_SYSERR;
      92            0 :       return;
      93              :     }
      94            0 :     mwc->cb (mwc->cb_cls,
      95              :              batch_deposit_serial_id,
      96              :              &total_amount,
      97              :              &wire_target_h_payto,
      98              :              deadline);
      99            0 :     GNUNET_PQ_cleanup_result (rs);
     100              :   }
     101              : }
     102              : 
     103              : 
     104              : enum GNUNET_DB_QueryStatus
     105            0 : TALER_EXCHANGEDB_select_batch_deposits_missing_wire (
     106              :   struct TALER_EXCHANGEDB_PostgresContext *pg,
     107              :   uint64_t min_batch_deposit_serial_id,
     108              :   TALER_EXCHANGEDB_WireMissingCallback cb,
     109              :   void *cb_cls)
     110              : {
     111            0 :   struct GNUNET_PQ_QueryParam params[] = {
     112            0 :     GNUNET_PQ_query_param_uint64 (&min_batch_deposit_serial_id),
     113              :     GNUNET_PQ_query_param_end
     114              :   };
     115            0 :   struct MissingWireContext mwc = {
     116              :     .cb = cb,
     117              :     .cb_cls = cb_cls,
     118              :     .pg = pg,
     119              :     .status = GNUNET_OK
     120              :   };
     121              :   enum GNUNET_DB_QueryStatus qs;
     122              : 
     123            0 :   PREPARE (pg,
     124              :            "deposits_get_deposits_missing_wire",
     125              :            "SELECT"
     126              :            " batch_deposit_serial_id"
     127              :            ",wire_target_h_payto"
     128              :            ",deadline"
     129              :            ",total_amount"
     130              :            " FROM exchange_do_select_deposits_missing_wire"
     131              :            " ($1);");
     132            0 :   qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
     133              :                                              "deposits_get_deposits_missing_wire",
     134              :                                              params,
     135              :                                              &missing_wire_cb,
     136              :                                              &mwc);
     137            0 :   if (GNUNET_OK != mwc.status)
     138            0 :     return GNUNET_DB_STATUS_HARD_ERROR;
     139            0 :   return qs;
     140              : }