LCOV - code coverage report
Current view: top level - exchangedb - pg_select_purse_merges_above_serial_id.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 13 36 36.1 %
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 pg_select_purse_merges_above_serial_id.c
      18             :  * @brief Implementation of the select_purse_merges_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_merges_above_serial_id.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : /**
      30             :  * Closure for #purse_deposit_serial_helper_cb().
      31             :  */
      32             : struct PurseMergeSerialContext
      33             : {
      34             : 
      35             :   /**
      36             :    * Callback to call.
      37             :    */
      38             :   TALER_EXCHANGEDB_PurseMergeCallback 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 PurseMergeSerialContext`
      62             :  * @param result the postgres result
      63             :  * @param num_results the number of results in @a result
      64             :  */
      65             : static void
      66          74 : purse_merges_serial_helper_cb (void *cls,
      67             :                                PGresult *result,
      68             :                                unsigned int num_results)
      69             : {
      70          74 :   struct PurseMergeSerialContext *dsc = cls;
      71          74 :   struct PostgresClosure *pg = dsc->pg;
      72             : 
      73          74 :   for (unsigned int i = 0; i<num_results; i++)
      74             :   {
      75             :     uint64_t rowid;
      76           0 :     char *partner_base_url = NULL;
      77             :     struct TALER_Amount amount;
      78             :     struct TALER_Amount balance;
      79             :     uint32_t flags32;
      80             :     enum TALER_WalletAccountMergeFlags flags;
      81             :     struct TALER_PurseMergePublicKeyP merge_pub;
      82             :     struct TALER_ReservePublicKeyP reserve_pub;
      83             :     struct TALER_PurseMergeSignatureP merge_sig;
      84             :     struct TALER_PurseContractPublicKeyP purse_pub;
      85             :     struct GNUNET_TIME_Timestamp merge_timestamp;
      86           0 :     struct GNUNET_PQ_ResultSpec rs[] = {
      87           0 :       TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
      88             :                                    &amount),
      89           0 :       TALER_PQ_RESULT_SPEC_AMOUNT ("balance",
      90             :                                    &balance),
      91           0 :       GNUNET_PQ_result_spec_allow_null (
      92             :         GNUNET_PQ_result_spec_string ("partner_base_url",
      93             :                                       &partner_base_url),
      94             :         NULL),
      95           0 :       GNUNET_PQ_result_spec_uint32 ("flags",
      96             :                                     &flags32),
      97           0 :       GNUNET_PQ_result_spec_timestamp ("merge_timestamp",
      98             :                                        &merge_timestamp),
      99           0 :       GNUNET_PQ_result_spec_auto_from_type ("purse_pub",
     100             :                                             &purse_pub),
     101           0 :       GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
     102             :                                             &reserve_pub),
     103           0 :       GNUNET_PQ_result_spec_auto_from_type ("merge_sig",
     104             :                                             &merge_sig),
     105           0 :       GNUNET_PQ_result_spec_auto_from_type ("merge_pub",
     106             :                                             &merge_pub),
     107           0 :       GNUNET_PQ_result_spec_uint64 ("purse_merge_request_serial_id",
     108             :                                     &rowid),
     109             :       GNUNET_PQ_result_spec_end
     110             :     };
     111             :     enum GNUNET_GenericReturnValue ret;
     112             : 
     113           0 :     if (GNUNET_OK !=
     114           0 :         GNUNET_PQ_extract_result (result,
     115             :                                   rs,
     116             :                                   i))
     117             :     {
     118           0 :       GNUNET_break (0);
     119           0 :       dsc->status = GNUNET_SYSERR;
     120           0 :       return;
     121             :     }
     122           0 :     flags = (enum TALER_WalletAccountMergeFlags) flags32;
     123           0 :     ret = dsc->cb (dsc->cb_cls,
     124             :                    rowid,
     125             :                    partner_base_url,
     126             :                    &amount,
     127             :                    &balance,
     128             :                    flags,
     129             :                    &merge_pub,
     130             :                    &reserve_pub,
     131             :                    &merge_sig,
     132             :                    &purse_pub,
     133             :                    merge_timestamp);
     134           0 :     GNUNET_PQ_cleanup_result (rs);
     135           0 :     if (GNUNET_OK != ret)
     136           0 :       break;
     137             :   }
     138             : }
     139             : 
     140             : 
     141             : enum GNUNET_DB_QueryStatus
     142          74 : TEH_PG_select_purse_merges_above_serial_id (
     143             :   void *cls,
     144             :   uint64_t serial_id,
     145             :   TALER_EXCHANGEDB_PurseMergeCallback cb,
     146             :   void *cb_cls)
     147             : {
     148          74 :   struct PostgresClosure *pg = cls;
     149          74 :   struct GNUNET_PQ_QueryParam params[] = {
     150          74 :     GNUNET_PQ_query_param_uint64 (&serial_id),
     151             :     GNUNET_PQ_query_param_end
     152             :   };
     153          74 :   struct PurseMergeSerialContext dsc = {
     154             :     .cb = cb,
     155             :     .cb_cls = cb_cls,
     156             :     .pg = pg,
     157             :     .status = GNUNET_OK
     158             :   };
     159             :   enum GNUNET_DB_QueryStatus qs;
     160             : 
     161          74 :   PREPARE (pg,
     162             :            "audit_get_purse_merge_incr",
     163             :            "SELECT"
     164             :            " pm.purse_merge_request_serial_id"
     165             :            ",partner_base_url"
     166             :            ",pr.amount_with_fee"
     167             :            ",pr.balance"
     168             :            ",pr.flags"
     169             :            ",pr.merge_pub"
     170             :            ",pm.reserve_pub"
     171             :            ",pm.merge_sig"
     172             :            ",pm.purse_pub"
     173             :            ",pm.merge_timestamp"
     174             :            " FROM purse_merges pm"
     175             :            " JOIN purse_requests pr USING (purse_pub)"
     176             :            " LEFT JOIN partners USING (partner_serial_id)"
     177             :            " WHERE ("
     178             :            "  (purse_merge_request_serial_id>=$1)"
     179             :            " )"
     180             :            " ORDER BY purse_merge_request_serial_id ASC;");
     181             : 
     182          74 :   qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
     183             :                                              "audit_get_purse_merge_incr",
     184             :                                              params,
     185             :                                              &purse_merges_serial_helper_cb,
     186             :                                              &dsc);
     187          74 :   if (GNUNET_OK != dsc.status)
     188           0 :     return GNUNET_DB_STATUS_HARD_ERROR;
     189          74 :   return qs;
     190             : }

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