LCOV - code coverage report
Current view: top level - exchangedb - pg_select_recoup_above_serial_id.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 13 35 37.1 %
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_recoup_above_serial_id.c
      18             :  * @brief Implementation of the select_recoup_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_recoup_above_serial_id.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : /**
      30             :  * Closure for #recoup_serial_helper_cb().
      31             :  */
      32             : struct RecoupSerialContext
      33             : {
      34             : 
      35             :   /**
      36             :    * Callback to call.
      37             :    */
      38             :   TALER_EXCHANGEDB_RecoupCallback cb;
      39             : 
      40             :   /**
      41             :    * Closure for @e cb.
      42             :    */
      43             :   void *cb_cls;
      44             : 
      45             :   /**
      46             :    * Plugin context.
      47             :    */
      48             :   struct PostgresClosure *pg;
      49             : 
      50             :   /**
      51             :    * Status code, set to #GNUNET_SYSERR on hard errors.
      52             :    */
      53             :   enum GNUNET_GenericReturnValue status;
      54             : };
      55             : 
      56             : 
      57             : /**
      58             :  * Helper function to be called with the results of a SELECT statement
      59             :  * that has returned @a num_results results.
      60             :  *
      61             :  * @param cls closure of type `struct RecoupSerialContext`
      62             :  * @param result the postgres result
      63             :  * @param num_results the number of results in @a result
      64             :  */
      65             : static void
      66         148 : recoup_serial_helper_cb (void *cls,
      67             :                          PGresult *result,
      68             :                          unsigned int num_results)
      69             : {
      70         148 :   struct RecoupSerialContext *psc = cls;
      71         148 :   struct PostgresClosure *pg = psc->pg;
      72             : 
      73         148 :   for (unsigned int i = 0; i<num_results; i++)
      74             :   {
      75             :     uint64_t rowid;
      76             :     struct TALER_ReservePublicKeyP reserve_pub;
      77             :     struct TALER_CoinPublicInfo coin;
      78             :     struct TALER_CoinSpendSignatureP coin_sig;
      79             :     union GNUNET_CRYPTO_BlindingSecretP coin_blind;
      80             :     struct TALER_Amount amount;
      81             :     struct TALER_DenominationPublicKey denom_pub;
      82             :     struct GNUNET_TIME_Timestamp timestamp;
      83           0 :     struct GNUNET_PQ_ResultSpec rs[] = {
      84           0 :       GNUNET_PQ_result_spec_uint64 ("recoup_uuid",
      85             :                                     &rowid),
      86           0 :       GNUNET_PQ_result_spec_timestamp ("recoup_timestamp",
      87             :                                        &timestamp),
      88           0 :       GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
      89             :                                             &reserve_pub),
      90           0 :       GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
      91             :                                             &coin.coin_pub),
      92           0 :       TALER_PQ_result_spec_denom_pub ("denom_pub",
      93             :                                       &denom_pub),
      94           0 :       GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
      95             :                                             &coin_sig),
      96           0 :       GNUNET_PQ_result_spec_auto_from_type ("coin_blind",
      97             :                                             &coin_blind),
      98           0 :       GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
      99             :                                             &coin.denom_pub_hash),
     100           0 :       GNUNET_PQ_result_spec_allow_null (
     101             :         GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
     102             :                                               &coin.h_age_commitment),
     103             :         &coin.no_age_commitment),
     104           0 :       TALER_PQ_result_spec_denom_sig ("denom_sig",
     105             :                                       &coin.denom_sig),
     106           0 :       TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
     107             :                                    &amount),
     108             :       GNUNET_PQ_result_spec_end
     109             :     };
     110             :     int ret;
     111             : 
     112           0 :     if (GNUNET_OK !=
     113           0 :         GNUNET_PQ_extract_result (result,
     114             :                                   rs,
     115             :                                   i))
     116             :     {
     117           0 :       GNUNET_break (0);
     118           0 :       psc->status = GNUNET_SYSERR;
     119           0 :       return;
     120             :     }
     121           0 :     ret = psc->cb (psc->cb_cls,
     122             :                    rowid,
     123             :                    timestamp,
     124             :                    &amount,
     125             :                    &reserve_pub,
     126             :                    &coin,
     127             :                    &denom_pub,
     128             :                    &coin_sig,
     129             :                    &coin_blind);
     130           0 :     GNUNET_PQ_cleanup_result (rs);
     131           0 :     if (GNUNET_OK != ret)
     132           0 :       break;
     133             :   }
     134             : }
     135             : 
     136             : 
     137             : enum GNUNET_DB_QueryStatus
     138         148 : TEH_PG_select_recoup_above_serial_id (
     139             :   void *cls,
     140             :   uint64_t serial_id,
     141             :   TALER_EXCHANGEDB_RecoupCallback cb,
     142             :   void *cb_cls)
     143             : {
     144         148 :   struct PostgresClosure *pg = cls;
     145         148 :   struct GNUNET_PQ_QueryParam params[] = {
     146         148 :     GNUNET_PQ_query_param_uint64 (&serial_id),
     147             :     GNUNET_PQ_query_param_end
     148             :   };
     149         148 :   struct RecoupSerialContext psc = {
     150             :     .cb = cb,
     151             :     .cb_cls = cb_cls,
     152             :     .pg = pg,
     153             :     .status = GNUNET_OK
     154             :   };
     155             :   enum GNUNET_DB_QueryStatus qs;
     156             : 
     157         148 :   PREPARE (pg,
     158             :            "recoup_get_incr",
     159             :            "SELECT"
     160             :            " recoup_uuid"
     161             :            ",recoup_timestamp"
     162             :            ",withdraw.reserve_pub"
     163             :            ",coins.coin_pub"
     164             :            ",coin_sig"
     165             :            ",coin_blind"
     166             :            ",denoms.denom_pub_hash"
     167             :            ",coins.denom_sig"
     168             :            ",coins.age_commitment_hash"
     169             :            ",denoms.denom_pub"
     170             :            ",amount"
     171             :            " FROM recoup"
     172             :            "    JOIN known_coins coins"
     173             :            "      USING (coin_pub)"
     174             :            "    JOIN withdraw"
     175             :            "      USING (withdraw_id)"
     176             :            "    JOIN denominations denoms"
     177             :            "      ON (coins.denominations_serial = denoms.denominations_serial)"
     178             :            " WHERE recoup_uuid>=$1"
     179             :            " ORDER BY recoup_uuid ASC;");
     180         148 :   qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
     181             :                                              "recoup_get_incr",
     182             :                                              params,
     183             :                                              &recoup_serial_helper_cb,
     184             :                                              &psc);
     185         148 :   if (GNUNET_OK != psc.status)
     186           0 :     return GNUNET_DB_STATUS_HARD_ERROR;
     187         148 :   return qs;
     188             : }

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