LCOV - code coverage report
Current view: top level - exchangedb - pg_select_purse_decisions_above_serial_id.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 14 30 46.7 %
Date: 2025-06-05 21:03:14 Functions: 2 2 100.0 %

          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_select_purse_decisions_above_serial_id.c
      18             :  * @brief Implementation of the select_purse_decisions_above_serial_id 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_select_purse_decisions_above_serial_id.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : /**
      29             :  * Closure for #purse_decision_serial_helper_cb().
      30             :  */
      31             : struct PurseDecisionSerialContext
      32             : {
      33             : 
      34             :   /**
      35             :    * Callback to call.
      36             :    */
      37             :   TALER_EXCHANGEDB_PurseDecisionCallback cb;
      38             : 
      39             :   /**
      40             :    * Closure for @e cb.
      41             :    */
      42             :   void *cb_cls;
      43             : 
      44             :   /**
      45             :    * Plugin context.
      46             :    */
      47             :   struct PostgresClosure *pg;
      48             : 
      49             :   /**
      50             :    * Status code, set to #GNUNET_SYSERR on hard errors.
      51             :    */
      52             :   enum GNUNET_GenericReturnValue status;
      53             : };
      54             : 
      55             : 
      56             : /**
      57             :  * Helper function to be called with the results of a SELECT statement
      58             :  * that has returned @a num_results results.
      59             :  *
      60             :  * @param cls closure of type `struct PurseRefundSerialContext`
      61             :  * @param result the postgres result
      62             :  * @param num_results the number of results in @a result
      63             :  */
      64             : static void
      65         148 : purse_decision_serial_helper_cb (void *cls,
      66             :                                  PGresult *result,
      67             :                                  unsigned int num_results)
      68             : {
      69         148 :   struct PurseDecisionSerialContext *dsc = cls;
      70         148 :   struct PostgresClosure *pg = dsc->pg;
      71             : 
      72         148 :   for (unsigned int i = 0; i<num_results; i++)
      73             :   {
      74             :     struct TALER_PurseContractPublicKeyP purse_pub;
      75             :     struct TALER_ReservePublicKeyP reserve_pub;
      76           0 :     bool no_reserve = true;
      77             :     uint64_t rowid;
      78             :     struct TALER_Amount val;
      79           0 :     struct GNUNET_PQ_ResultSpec rs[] = {
      80           0 :       GNUNET_PQ_result_spec_auto_from_type ("purse_pub",
      81             :                                             &purse_pub),
      82           0 :       GNUNET_PQ_result_spec_allow_null (
      83             :         GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
      84             :                                               &reserve_pub),
      85             :         &no_reserve),
      86           0 :       TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
      87             :                                    &val),
      88           0 :       GNUNET_PQ_result_spec_uint64 ("purse_decision_serial_id",
      89             :                                     &rowid),
      90             :       GNUNET_PQ_result_spec_end
      91             :     };
      92             :     enum GNUNET_GenericReturnValue ret;
      93             : 
      94           0 :     if (GNUNET_OK !=
      95           0 :         GNUNET_PQ_extract_result (result,
      96             :                                   rs,
      97             :                                   i))
      98             :     {
      99           0 :       GNUNET_break (0);
     100           0 :       dsc->status = GNUNET_SYSERR;
     101           0 :       return;
     102             :     }
     103           0 :     ret = dsc->cb (dsc->cb_cls,
     104             :                    rowid,
     105             :                    &purse_pub,
     106             :                    no_reserve ? NULL : &reserve_pub,
     107             :                    &val);
     108           0 :     GNUNET_PQ_cleanup_result (rs);
     109           0 :     if (GNUNET_OK != ret)
     110           0 :       break;
     111             :   }
     112             : }
     113             : 
     114             : 
     115             : enum GNUNET_DB_QueryStatus
     116         148 : TEH_PG_select_purse_decisions_above_serial_id (
     117             :   void *cls,
     118             :   uint64_t serial_id,
     119             :   bool refunded,
     120             :   TALER_EXCHANGEDB_PurseDecisionCallback cb,
     121             :   void *cb_cls)
     122             : {
     123         148 :   struct PostgresClosure *pg = cls;
     124         148 :   struct GNUNET_PQ_QueryParam params[] = {
     125         148 :     GNUNET_PQ_query_param_uint64 (&serial_id),
     126         148 :     GNUNET_PQ_query_param_bool (refunded),
     127             :     GNUNET_PQ_query_param_end
     128             :   };
     129         148 :   struct PurseDecisionSerialContext dsc = {
     130             :     .cb = cb,
     131             :     .cb_cls = cb_cls,
     132             :     .pg = pg,
     133             :     .status = GNUNET_OK
     134             :   };
     135             :   enum GNUNET_DB_QueryStatus qs;
     136             : 
     137         148 :   PREPARE (pg,
     138             :            "audit_get_purse_decisions_incr",
     139             :            "SELECT"
     140             :            " pd.purse_pub"
     141             :            ",pm.reserve_pub"
     142             :            ",pd.purse_decision_serial_id"
     143             :            ",pr.amount_with_fee"
     144             :            " FROM purse_decision pd"
     145             :            " JOIN purse_requests pr ON (pd.purse_pub = pr.purse_pub)"
     146             :            " LEFT JOIN purse_merges pm ON (pm.purse_pub = pd.purse_pub)"
     147             :            " WHERE ("
     148             :            "  (purse_decision_serial_id>=$1) AND "
     149             :            "  (refunded=$2)"
     150             :            " )"
     151             :            " ORDER BY purse_decision_serial_id ASC;");
     152             : 
     153             : 
     154         148 :   qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
     155             :                                              "audit_get_purse_decisions_incr",
     156             :                                              params,
     157             :                                              &purse_decision_serial_helper_cb,
     158             :                                              &dsc);
     159         148 :   if (GNUNET_OK != dsc.status)
     160           0 :     return GNUNET_DB_STATUS_HARD_ERROR;
     161         148 :   return qs;
     162             : }

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