exchange

Base system with REST service to issue digital coins, run by the payment service provider
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pg_update_auditor_progress.c (3079B)

      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_update_auditor_progress.c
     18  * @brief Low-level (statement-level) Postgres database access for the exchange
     19  * @author Christian Grothoff
     20  */
     21 #include "taler/platform.h"
     22 #include "taler/taler_error_codes.h"
     23 #include "taler/taler_dbevents.h"
     24 #include "taler/taler_pq_lib.h"
     25 #include "pg_update_auditor_progress.h"
     26 #include "pg_helper.h"
     27 
     28 
     29 enum GNUNET_DB_QueryStatus
     30 TAH_PG_update_auditor_progress (
     31   void *cls,
     32   const char *progress_key,
     33   uint64_t progress_offset,
     34   ...)
     35 {
     36   struct PostgresClosure *pg = cls;
     37   unsigned int cnt = 1;
     38   va_list ap;
     39 
     40   va_start (ap,
     41             progress_offset);
     42   while (NULL != va_arg (ap,
     43                          const char *))
     44   {
     45     cnt++;
     46     (void) va_arg (ap,
     47                    uint64_t);
     48   }
     49   va_end (ap);
     50   {
     51     const char *keys[cnt];
     52     uint64_t offsets[cnt];
     53     unsigned int off = 1;
     54     struct GNUNET_PQ_QueryParam params[] = {
     55       GNUNET_PQ_query_param_array_ptrs_string (cnt,
     56                                                keys,
     57                                                pg->conn),
     58       GNUNET_PQ_query_param_array_uint64 (cnt,
     59                                           offsets,
     60                                           pg->conn),
     61       GNUNET_PQ_query_param_end
     62     };
     63     enum GNUNET_DB_QueryStatus qs;
     64 
     65     keys[0] = progress_key;
     66     offsets[0] = progress_offset;
     67 
     68     va_start (ap,
     69               progress_offset);
     70     while (off < cnt)
     71     {
     72       keys[off] = va_arg (ap,
     73                           const char *);
     74       offsets[off] = va_arg (ap,
     75                              uint64_t);
     76       off++;
     77     }
     78     GNUNET_assert (NULL == va_arg (ap,
     79                                    const char *));
     80     va_end (ap);
     81 
     82     PREPARE (pg,
     83              "auditor_progress_update",
     84              "UPDATE auditor_progress"
     85              "  SET progress_offset=data.off"
     86              "  FROM ("
     87              "    SELECT *"
     88              "      FROM UNNEST (CAST($1 AS TEXT[]),"
     89              "                   CAST($2 AS INT8[]))"
     90              "      AS t(key,off)"
     91              "  ) AS data"
     92              " WHERE auditor_progress.progress_key=data.key;");
     93     qs = GNUNET_PQ_eval_prepared_non_select (pg->conn,
     94                                              "auditor_progress_update",
     95                                              params);
     96     GNUNET_PQ_cleanup_query_params_closures (params);
     97     return qs;
     98   }
     99 }