LCOV - code coverage report
Current view: top level - auditordb - pg_get_auditor_progress.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 45 50 90.0 %
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) 2024 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_get_auditor_progress.c
      18             :  * @brief Implementation of get_auditor_progress function
      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_get_auditor_progress.h"
      26             : #include "pg_helper.h"
      27             : 
      28             : 
      29             : /**
      30             :  * Closure for #auditor_progress_cb().
      31             :  */
      32             : struct AuditorProgressContext
      33             : {
      34             : 
      35             :   /**
      36             :    * Where to store results.
      37             :    */
      38             :   uint64_t **dst;
      39             : 
      40             :   /**
      41             :    * Offset in @e dst.
      42             :    */
      43             :   unsigned int off;
      44             : 
      45             :   /**
      46             :    * Length of array at @e dst.
      47             :    */
      48             :   unsigned int len;
      49             : 
      50             :   /**
      51             :    * Plugin context.
      52             :    */
      53             :   struct PostgresClosure *pg;
      54             : 
      55             :   /**
      56             :    * Set to true on failure.
      57             :    */
      58             :   bool failure;
      59             : };
      60             : 
      61             : 
      62             : /**
      63             :  * Helper function for #TAH_PG_get_auditor_progress().
      64             :  * To be called with the results of a SELECT statement
      65             :  * that has returned @a num_results results.
      66             :  *
      67             :  * @param cls closure of type `struct AuditorProgressContext *`
      68             :  * @param result the postgres result
      69             :  * @param num_results the number of results in @a result
      70             :  */
      71             : static void
      72         646 : auditor_progress_cb (void *cls,
      73             :                      PGresult *result,
      74             :                      unsigned int num_results)
      75             : {
      76         646 :   struct AuditorProgressContext *ctx = cls;
      77             : 
      78         646 :   GNUNET_assert (num_results == ctx->len);
      79        2978 :   for (unsigned int i = 0; i < num_results; i++)
      80             :   {
      81        2332 :     bool is_missing = false;
      82        2332 :     struct GNUNET_PQ_ResultSpec rs[] = {
      83        2332 :       GNUNET_PQ_result_spec_allow_null (
      84             :         GNUNET_PQ_result_spec_uint64 ("progress_offset",
      85        2332 :                                       ctx->dst[i]),
      86             :         &is_missing),
      87             :       GNUNET_PQ_result_spec_end
      88             :     };
      89             : 
      90        2332 :     if (GNUNET_OK !=
      91        2332 :         GNUNET_PQ_extract_result (result,
      92             :                                   rs,
      93             :                                   i))
      94             :     {
      95           0 :       GNUNET_break (0);
      96           0 :       ctx->failure = true;
      97           0 :       return;
      98             :     }
      99        2332 :     if (is_missing)
     100        1294 :       *ctx->dst[i] = 0;
     101        2332 :     ctx->off++;
     102             :   }
     103             : }
     104             : 
     105             : 
     106             : enum GNUNET_DB_QueryStatus
     107         646 : TAH_PG_get_auditor_progress (void *cls,
     108             :                              const char *progress_key,
     109             :                              uint64_t *progress_offset,
     110             :                              ...)
     111             : {
     112         646 :   struct PostgresClosure *pg = cls;
     113         646 :   unsigned int cnt = 1;
     114             :   va_list ap;
     115             : 
     116         646 :   va_start (ap,
     117             :             progress_offset);
     118        2332 :   while (NULL != va_arg (ap,
     119             :                          const char *))
     120             :   {
     121        1686 :     cnt++;
     122        1686 :     (void) va_arg (ap,
     123             :                    uint64_t *);
     124             :   }
     125         646 :   va_end (ap);
     126         646 :   {
     127         646 :     const char *keys[cnt];
     128         646 :     uint64_t *dsts[cnt];
     129         646 :     unsigned int off = 1;
     130         646 :     struct GNUNET_PQ_QueryParam params[] = {
     131         646 :       GNUNET_PQ_query_param_array_ptrs_string (cnt,
     132             :                                                keys,
     133             :                                                pg->conn),
     134             :       GNUNET_PQ_query_param_end
     135             :     };
     136         646 :     struct AuditorProgressContext ctx = {
     137             :       .dst = dsts,
     138             :       .len = cnt,
     139             :       .pg = pg
     140             :     };
     141             :     enum GNUNET_DB_QueryStatus qs;
     142             : 
     143         646 :     keys[0] = progress_key;
     144         646 :     dsts[0] = progress_offset;
     145         646 :     va_start (ap,
     146             :               progress_offset);
     147        2332 :     while (off < cnt)
     148             :     {
     149        1686 :       keys[off] = va_arg (ap,
     150             :                           const char *);
     151        1686 :       dsts[off] = va_arg (ap,
     152             :                           uint64_t *);
     153        1686 :       off++;
     154             :     }
     155         646 :     GNUNET_assert (NULL == va_arg (ap,
     156             :                                    const char *));
     157         646 :     va_end (ap);
     158             : 
     159         646 :     PREPARE (pg,
     160             :              "get_auditor_progress",
     161             :              "SELECT"
     162             :              " auditor_do_get_auditor_progress AS progress_offset"
     163             :              " FROM auditor_do_get_auditor_progress "
     164             :              "($1);");
     165         646 :     ctx.off = 0;
     166         646 :     qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
     167             :                                                "get_auditor_progress",
     168             :                                                params,
     169             :                                                &auditor_progress_cb,
     170             :                                                &ctx);
     171         646 :     GNUNET_PQ_cleanup_query_params_closures (params);
     172         646 :     if (ctx.failure)
     173           0 :       return GNUNET_DB_STATUS_HARD_ERROR;
     174         646 :     if (qs < 0)
     175           0 :       return qs;
     176         646 :     GNUNET_assert (ctx.off == cnt);
     177         646 :     return qs;
     178             :   }
     179             : }

Generated by: LCOV version 1.16