LCOV - code coverage report
Current view: top level - exchangedb - pg_select_reserve_open_above_serial_id.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 13 31 41.9 %
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_open_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_open_above_serial_id.h"
      26             : #include "plugin_exchangedb_common.h"
      27             : #include "pg_helper.h"
      28             : 
      29             : 
      30             : /**
      31             :  * Closure for #reserve_open_serial_helper_cb().
      32             :  */
      33             : struct ReserveOpenSerialContext
      34             : {
      35             : 
      36             :   /**
      37             :    * Callback to call.
      38             :    */
      39             :   TALER_EXCHANGEDB_ReserveOpenCallback cb;
      40             : 
      41             :   /**
      42             :    * Closure for @e cb.
      43             :    */
      44             :   void *cb_cls;
      45             : 
      46             :   /**
      47             :    * Plugin's context.
      48             :    */
      49             :   struct PostgresClosure *pg;
      50             : 
      51             :   /**
      52             :    * Status code, set to #GNUNET_SYSERR on hard errors.
      53             :    */
      54             :   enum GNUNET_GenericReturnValue status;
      55             : };
      56             : 
      57             : 
      58             : /**
      59             :  * Helper function to be called with the results of a SELECT statement
      60             :  * that has returned @a num_results results.
      61             :  *
      62             :  * @param cls closure of type `struct ReserveOpenSerialContext`
      63             :  * @param result the postgres result
      64             :  * @param num_results the number of results in @a result
      65             :  */
      66             : static void
      67          74 : reserve_open_serial_helper_cb (void *cls,
      68             :                                PGresult *result,
      69             :                                unsigned int num_results)
      70             : {
      71          74 :   struct ReserveOpenSerialContext *rcsc = cls;
      72          74 :   struct PostgresClosure *pg = rcsc->pg;
      73             : 
      74          74 :   for (unsigned int i = 0; i<num_results; i++)
      75             :   {
      76             :     uint64_t rowid;
      77             :     struct TALER_ReservePublicKeyP reserve_pub;
      78             :     struct TALER_ReserveSignatureP reserve_sig;
      79             :     uint32_t requested_purse_limit;
      80             :     struct GNUNET_TIME_Timestamp request_timestamp;
      81             :     struct GNUNET_TIME_Timestamp reserve_expiration;
      82             :     struct TALER_Amount reserve_payment;
      83           0 :     struct GNUNET_PQ_ResultSpec rs[] = {
      84           0 :       GNUNET_PQ_result_spec_uint64 ("open_request_uuid",
      85             :                                     &rowid),
      86           0 :       GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
      87             :                                             &reserve_pub),
      88           0 :       GNUNET_PQ_result_spec_auto_from_type ("reserve_sig",
      89             :                                             &reserve_sig),
      90           0 :       GNUNET_PQ_result_spec_timestamp ("request_timestamp",
      91             :                                        &request_timestamp),
      92           0 :       GNUNET_PQ_result_spec_timestamp ("expiration_date",
      93             :                                        &reserve_expiration),
      94           0 :       GNUNET_PQ_result_spec_uint32 ("requested_purse_limit",
      95             :                                     &requested_purse_limit),
      96           0 :       TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_payment",
      97             :                                    &reserve_payment),
      98             :       GNUNET_PQ_result_spec_end
      99             :     };
     100             :     enum GNUNET_GenericReturnValue ret;
     101             : 
     102           0 :     if (GNUNET_OK !=
     103           0 :         GNUNET_PQ_extract_result (result,
     104             :                                   rs,
     105             :                                   i))
     106             :     {
     107           0 :       GNUNET_break (0);
     108           0 :       rcsc->status = GNUNET_SYSERR;
     109           0 :       return;
     110             :     }
     111           0 :     ret = rcsc->cb (rcsc->cb_cls,
     112             :                     rowid,
     113             :                     &reserve_payment,
     114             :                     request_timestamp,
     115             :                     reserve_expiration,
     116             :                     requested_purse_limit,
     117             :                     &reserve_pub,
     118             :                     &reserve_sig);
     119           0 :     GNUNET_PQ_cleanup_result (rs);
     120           0 :     if (GNUNET_OK != ret)
     121           0 :       break;
     122             :   }
     123             : }
     124             : 
     125             : 
     126             : enum GNUNET_DB_QueryStatus
     127          74 : TEH_PG_select_reserve_open_above_serial_id (
     128             :   void *cls,
     129             :   uint64_t serial_id,
     130             :   TALER_EXCHANGEDB_ReserveOpenCallback cb,
     131             :   void *cb_cls)
     132             : {
     133          74 :   struct PostgresClosure *pg = cls;
     134          74 :   struct GNUNET_PQ_QueryParam params[] = {
     135          74 :     GNUNET_PQ_query_param_uint64 (&serial_id),
     136             :     GNUNET_PQ_query_param_end
     137             :   };
     138          74 :   struct ReserveOpenSerialContext rcsc = {
     139             :     .cb = cb,
     140             :     .cb_cls = cb_cls,
     141             :     .pg = pg,
     142             :     .status = GNUNET_OK
     143             :   };
     144             :   enum GNUNET_DB_QueryStatus qs;
     145             : 
     146          74 :   PREPARE (
     147             :     pg,
     148             :     "reserves_open_get_incr",
     149             :     "SELECT"
     150             :     " open_request_uuid"
     151             :     ",reserve_pub"
     152             :     ",request_timestamp"
     153             :     ",expiration_date"
     154             :     ",reserve_sig"
     155             :     ",reserve_payment"
     156             :     ",requested_purse_limit"
     157             :     " FROM reserves_open_requests"
     158             :     " WHERE open_request_uuid>=$1"
     159             :     " ORDER BY open_request_uuid ASC;");
     160          74 :   qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
     161             :                                              "reserves_open_get_incr",
     162             :                                              params,
     163             :                                              &reserve_open_serial_helper_cb,
     164             :                                              &rcsc);
     165          74 :   if (GNUNET_OK != rcsc.status)
     166           0 :     return GNUNET_DB_STATUS_HARD_ERROR;
     167          74 :   return qs;
     168             : }

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