LCOV - code coverage report
Current view: top level - exchangedb - pg_select_reserves_in_above_serial_id.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 26 32 81.2 %
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_reserves_in_above_serial_id.c
      18             :  * @brief Implementation of the select_reserves_in_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_reserves_in_above_serial_id.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : /**
      29             :  * Closure for #reserves_in_serial_helper_cb().
      30             :  */
      31             : struct ReservesInSerialContext
      32             : {
      33             : 
      34             :   /**
      35             :    * Callback to call.
      36             :    */
      37             :   TALER_EXCHANGEDB_ReserveInCallback 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 ReservesInSerialContext`
      61             :  * @param result the postgres result
      62             :  * @param num_results the number of results in @a result
      63             :  */
      64             : static void
      65          74 : reserves_in_serial_helper_cb (void *cls,
      66             :                               PGresult *result,
      67             :                               unsigned int num_results)
      68             : {
      69          74 :   struct ReservesInSerialContext *risc = cls;
      70          74 :   struct PostgresClosure *pg = risc->pg;
      71             : 
      72         142 :   for (unsigned int i = 0; i<num_results; i++)
      73             :   {
      74             :     struct TALER_ReservePublicKeyP reserve_pub;
      75             :     struct TALER_Amount credit;
      76             :     struct TALER_FullPayto sender_account_details;
      77             :     struct GNUNET_TIME_Timestamp execution_date;
      78             :     uint64_t rowid;
      79             :     uint64_t wire_reference;
      80          68 :     struct GNUNET_PQ_ResultSpec rs[] = {
      81          68 :       GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
      82             :                                             &reserve_pub),
      83          68 :       GNUNET_PQ_result_spec_uint64 ("wire_reference",
      84             :                                     &wire_reference),
      85          68 :       TALER_PQ_RESULT_SPEC_AMOUNT ("credit",
      86             :                                    &credit),
      87          68 :       GNUNET_PQ_result_spec_timestamp ("execution_date",
      88             :                                        &execution_date),
      89          68 :       GNUNET_PQ_result_spec_string ("sender_account_details",
      90             :                                     &sender_account_details.full_payto),
      91          68 :       GNUNET_PQ_result_spec_uint64 ("reserve_in_serial_id",
      92             :                                     &rowid),
      93             :       GNUNET_PQ_result_spec_end
      94             :     };
      95             :     enum GNUNET_GenericReturnValue ret;
      96             : 
      97          68 :     if (GNUNET_OK !=
      98          68 :         GNUNET_PQ_extract_result (result,
      99             :                                   rs,
     100             :                                   i))
     101             :     {
     102           0 :       GNUNET_break (0);
     103           0 :       risc->status = GNUNET_SYSERR;
     104           0 :       return;
     105             :     }
     106          68 :     ret = risc->cb (risc->cb_cls,
     107             :                     rowid,
     108             :                     &reserve_pub,
     109             :                     &credit,
     110             :                     sender_account_details,
     111             :                     wire_reference,
     112             :                     execution_date);
     113          68 :     GNUNET_PQ_cleanup_result (rs);
     114          68 :     if (GNUNET_OK != ret)
     115           0 :       break;
     116             :   }
     117             : }
     118             : 
     119             : 
     120             : enum GNUNET_DB_QueryStatus
     121          74 : TEH_PG_select_reserves_in_above_serial_id (
     122             :   void *cls,
     123             :   uint64_t serial_id,
     124             :   TALER_EXCHANGEDB_ReserveInCallback cb,
     125             :   void *cb_cls)
     126             : {
     127          74 :   struct PostgresClosure *pg = cls;
     128          74 :   struct GNUNET_PQ_QueryParam params[] = {
     129          74 :     GNUNET_PQ_query_param_uint64 (&serial_id),
     130             :     GNUNET_PQ_query_param_end
     131             :   };
     132          74 :   struct ReservesInSerialContext risc = {
     133             :     .cb = cb,
     134             :     .cb_cls = cb_cls,
     135             :     .pg = pg,
     136             :     .status = GNUNET_OK
     137             :   };
     138             :   enum GNUNET_DB_QueryStatus qs;
     139             : 
     140          74 :   PREPARE (pg,
     141             :            "select_reserves_in_above_serial_id",
     142             :            "SELECT"
     143             :            " reserves.reserve_pub"
     144             :            ",wire_reference"
     145             :            ",credit"
     146             :            ",execution_date"
     147             :            ",wt.payto_uri AS sender_account_details"
     148             :            ",reserve_in_serial_id"
     149             :            " FROM reserves_in"
     150             :            " JOIN reserves"
     151             :            "   USING (reserve_pub)"
     152             :            " JOIN wire_targets wt"
     153             :            "   ON (wire_source_h_payto = wire_target_h_payto)"
     154             :            " WHERE reserve_in_serial_id>=$1"
     155             :            " ORDER BY reserve_in_serial_id;");
     156          74 :   qs = GNUNET_PQ_eval_prepared_multi_select (
     157             :     pg->conn,
     158             :     "select_reserves_in_above_serial_id",
     159             :     params,
     160             :     &reserves_in_serial_helper_cb,
     161             :     &risc);
     162          74 :   if (GNUNET_DB_STATUS_SOFT_ERROR == qs)
     163           0 :     return qs;
     164          74 :   if (GNUNET_OK != risc.status)
     165           0 :     return GNUNET_DB_STATUS_HARD_ERROR;
     166          74 :   return qs;
     167             : }

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