LCOV - code coverage report
Current view: top level - exchangedb - pg_select_reserve_closed_above_serial_id.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 27 32 84.4 %
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 pg_select_reserve_closed_above_serial_id.c
      18             :  * @brief Low-level (statement-level) Postgres database access for the exchange
      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_reserve_closed_above_serial_id.h"
      26             : #include "plugin_exchangedb_common.h"
      27             : #include "pg_helper.h"
      28             : 
      29             : /**
      30             :  * Closure for #reserve_closed_serial_helper_cb().
      31             :  */
      32             : struct ReserveClosedSerialContext
      33             : {
      34             : 
      35             :   /**
      36             :    * Callback to call.
      37             :    */
      38             :   TALER_EXCHANGEDB_ReserveClosedCallback cb;
      39             : 
      40             :   /**
      41             :    * Closure for @e cb.
      42             :    */
      43             :   void *cb_cls;
      44             : 
      45             :   /**
      46             :    * Plugin's 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 ReserveClosedSerialContext`
      62             :  * @param result the postgres result
      63             :  * @param num_results the number of results in @a result
      64             :  */
      65             : static void
      66         142 : reserve_closed_serial_helper_cb (void *cls,
      67             :                                  PGresult *result,
      68             :                                  unsigned int num_results)
      69             : {
      70         142 :   struct ReserveClosedSerialContext *rcsc = cls;
      71         142 :   struct PostgresClosure *pg = rcsc->pg;
      72             : 
      73         146 :   for (unsigned int i = 0; i<num_results; i++)
      74             :   {
      75             :     uint64_t rowid;
      76             :     struct TALER_ReservePublicKeyP reserve_pub;
      77             :     struct TALER_FullPayto receiver_account;
      78             :     struct TALER_WireTransferIdentifierRawP wtid;
      79             :     struct TALER_Amount amount_with_fee;
      80             :     struct TALER_Amount closing_fee;
      81             :     struct GNUNET_TIME_Timestamp execution_date;
      82             :     uint64_t close_request_row;
      83           4 :     struct GNUNET_PQ_ResultSpec rs[] = {
      84           4 :       GNUNET_PQ_result_spec_uint64 ("close_uuid",
      85             :                                     &rowid),
      86           4 :       GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
      87             :                                             &reserve_pub),
      88           4 :       GNUNET_PQ_result_spec_timestamp ("execution_date",
      89             :                                        &execution_date),
      90           4 :       GNUNET_PQ_result_spec_auto_from_type ("wtid",
      91             :                                             &wtid),
      92           4 :       GNUNET_PQ_result_spec_string ("receiver_account",
      93             :                                     &receiver_account.full_payto),
      94           4 :       TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
      95             :                                    &amount_with_fee),
      96           4 :       TALER_PQ_RESULT_SPEC_AMOUNT ("closing_fee",
      97             :                                    &closing_fee),
      98           4 :       GNUNET_PQ_result_spec_uint64 ("close_request_row",
      99             :                                     &close_request_row),
     100             :       GNUNET_PQ_result_spec_end
     101             :     };
     102             :     enum GNUNET_GenericReturnValue ret;
     103             : 
     104           4 :     if (GNUNET_OK !=
     105           4 :         GNUNET_PQ_extract_result (result,
     106             :                                   rs,
     107             :                                   i))
     108             :     {
     109           0 :       GNUNET_break (0);
     110           0 :       rcsc->status = GNUNET_SYSERR;
     111           0 :       return;
     112             :     }
     113           4 :     ret = rcsc->cb (rcsc->cb_cls,
     114             :                     rowid,
     115             :                     execution_date,
     116             :                     &amount_with_fee,
     117             :                     &closing_fee,
     118             :                     &reserve_pub,
     119             :                     receiver_account,
     120             :                     &wtid,
     121             :                     close_request_row);
     122           4 :     GNUNET_PQ_cleanup_result (rs);
     123           4 :     if (GNUNET_OK != ret)
     124           0 :       break;
     125             :   }
     126             : }
     127             : 
     128             : 
     129             : enum GNUNET_DB_QueryStatus
     130         142 : TEH_PG_select_reserve_closed_above_serial_id (
     131             :   void *cls,
     132             :   uint64_t serial_id,
     133             :   TALER_EXCHANGEDB_ReserveClosedCallback cb,
     134             :   void *cb_cls)
     135             : {
     136         142 :   struct PostgresClosure *pg = cls;
     137         142 :   struct GNUNET_PQ_QueryParam params[] = {
     138         142 :     GNUNET_PQ_query_param_uint64 (&serial_id),
     139             :     GNUNET_PQ_query_param_end
     140             :   };
     141         142 :   struct ReserveClosedSerialContext rcsc = {
     142             :     .cb = cb,
     143             :     .cb_cls = cb_cls,
     144             :     .pg = pg,
     145             :     .status = GNUNET_OK
     146             :   };
     147             :   enum GNUNET_DB_QueryStatus qs;
     148             : 
     149         142 :   PREPARE (
     150             :     pg,
     151             :     "reserves_close_get_incr",
     152             :     "SELECT"
     153             :     " close_uuid"
     154             :     ",reserves.reserve_pub"
     155             :     ",execution_date"
     156             :     ",wtid"
     157             :     ",wt.payto_uri AS receiver_account"
     158             :     ",amount"
     159             :     ",closing_fee"
     160             :     ",close_request_row"
     161             :     " FROM reserves_close"
     162             :     " JOIN wire_targets wt"
     163             :     "   USING (wire_target_h_payto)"
     164             :     " JOIN reserves"
     165             :     "   USING (reserve_pub)"
     166             :     " WHERE close_uuid>=$1"
     167             :     " ORDER BY close_uuid ASC;");
     168         142 :   qs = GNUNET_PQ_eval_prepared_multi_select (
     169             :     pg->conn,
     170             :     "reserves_close_get_incr",
     171             :     params,
     172             :     &reserve_closed_serial_helper_cb,
     173             :     &rcsc);
     174         142 :   if (GNUNET_OK != rcsc.status)
     175           0 :     return GNUNET_DB_STATUS_HARD_ERROR;
     176         142 :   return qs;
     177             : }

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