iterate_recoup_refreshes_above_serial_id.c (6667B)
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 exchangedb/iterate_recoup_refreshes_above_serial_id.c 18 * @brief Implementation of the iterate_recoup_refreshes_above_serial_id function for Postgres 19 * @author Christian Grothoff 20 */ 21 #include "taler/taler_pq_lib.h" 22 #include "exchange-database/iterate_recoup_refreshes_above_serial_id.h" 23 #include "helper.h" 24 25 26 /** 27 * Closure for #recoup_refresh_serial_helper_cb(). 28 */ 29 struct RecoupRefreshSerialContext 30 { 31 32 /** 33 * Callback to call. 34 */ 35 TALER_EXCHANGEDB_RecoupRefreshCallback cb; 36 37 /** 38 * Closure for @e cb. 39 */ 40 void *cb_cls; 41 42 /** 43 * Plugin context. 44 */ 45 struct TALER_EXCHANGEDB_PostgresContext *pg; 46 47 /** 48 * Status code, set to #GNUNET_SYSERR on hard errors. 49 */ 50 enum GNUNET_GenericReturnValue status; 51 }; 52 53 54 /** 55 * Helper function to be called with the results of a SELECT statement 56 * that has returned @a num_results results. 57 * 58 * @param cls closure of type `struct RecoupRefreshSerialContext` 59 * @param result the postgres result 60 * @param num_results the number of results in @a result 61 */ 62 static void 63 recoup_refresh_serial_helper_cb (void *cls, 64 PGresult *result, 65 unsigned int num_results) 66 { 67 struct RecoupRefreshSerialContext *psc = cls; 68 struct TALER_EXCHANGEDB_PostgresContext *pg = psc->pg; 69 70 for (unsigned int i = 0; i<num_results; i++) 71 { 72 uint64_t rowid; 73 struct TALER_CoinSpendPublicKeyP old_coin_pub; 74 struct TALER_CoinPublicInfo coin; 75 struct TALER_CoinSpendSignatureP coin_sig; 76 union GNUNET_CRYPTO_BlindingSecretP coin_blind; 77 struct TALER_DenominationPublicKey denom_pub; 78 struct TALER_DenominationHashP old_denom_pub_hash; 79 struct TALER_Amount amount; 80 struct GNUNET_TIME_Timestamp timestamp; 81 struct GNUNET_PQ_ResultSpec rs[] = { 82 GNUNET_PQ_result_spec_uint64 ("recoup_refresh_uuid", 83 &rowid), 84 GNUNET_PQ_result_spec_timestamp ("recoup_timestamp", 85 ×tamp), 86 GNUNET_PQ_result_spec_auto_from_type ("old_coin_pub", 87 &old_coin_pub), 88 GNUNET_PQ_result_spec_auto_from_type ("old_denom_pub_hash", 89 &old_denom_pub_hash), 90 GNUNET_PQ_result_spec_auto_from_type ("coin_pub", 91 &coin.coin_pub), 92 GNUNET_PQ_result_spec_auto_from_type ("coin_sig", 93 &coin_sig), 94 GNUNET_PQ_result_spec_auto_from_type ("coin_blind", 95 &coin_blind), 96 TALER_PQ_result_spec_denom_pub ("denom_pub", 97 &denom_pub), 98 GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash", 99 &coin.denom_pub_hash), 100 GNUNET_PQ_result_spec_allow_null ( 101 GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash", 102 &coin.h_age_commitment), 103 &coin.no_age_commitment), 104 TALER_PQ_result_spec_denom_sig ("denom_sig", 105 &coin.denom_sig), 106 TALER_PQ_RESULT_SPEC_AMOUNT ("amount", 107 &amount), 108 GNUNET_PQ_result_spec_end 109 }; 110 enum GNUNET_GenericReturnValue ret; 111 112 if (GNUNET_OK != 113 GNUNET_PQ_extract_result (result, 114 rs, 115 i)) 116 { 117 GNUNET_break (0); 118 psc->status = GNUNET_SYSERR; 119 return; 120 } 121 ret = psc->cb (psc->cb_cls, 122 rowid, 123 timestamp, 124 &amount, 125 &old_coin_pub, 126 &old_denom_pub_hash, 127 &coin, 128 &denom_pub, 129 &coin_sig, 130 &coin_blind); 131 GNUNET_PQ_cleanup_result (rs); 132 if (GNUNET_OK != ret) 133 break; 134 } 135 } 136 137 138 enum GNUNET_DB_QueryStatus 139 TALER_EXCHANGEDB_iterate_recoup_refreshes_above_serial_id ( 140 struct TALER_EXCHANGEDB_PostgresContext *pg, 141 uint64_t serial_id, 142 TALER_EXCHANGEDB_RecoupRefreshCallback cb, 143 void *cb_cls) 144 { 145 struct GNUNET_PQ_QueryParam params[] = { 146 GNUNET_PQ_query_param_uint64 (&serial_id), 147 GNUNET_PQ_query_param_end 148 }; 149 struct RecoupRefreshSerialContext psc = { 150 .cb = cb, 151 .cb_cls = cb_cls, 152 .pg = pg, 153 .status = GNUNET_OK 154 }; 155 enum GNUNET_DB_QueryStatus qs; 156 157 PREPARE (pg, 158 "iterate_recoup_refreshes_above_serial_id", 159 "SELECT" 160 " rr.recoup_refresh_uuid" 161 ",rr.recoup_timestamp" 162 ",rr.coin_sig" 163 ",rr.coin_blind" 164 ",rr.amount" 165 ",new_coins.age_commitment_hash" 166 ",new_coins.coin_pub AS coin_pub" 167 ",new_denoms.denom_pub AS denom_pub" 168 ",new_denoms.denom_pub_hash" 169 ",new_coins.denom_sig AS denom_sig" 170 ",old_coins.coin_pub AS old_coin_pub" 171 ",old_denoms.denom_pub_hash AS old_denom_pub_hash" 172 " FROM recoup_refresh rr" 173 " INNER JOIN refresh r" 174 " ON (r.refresh_id = rr.refresh_id)" 175 " INNER JOIN known_coins old_coins" 176 " ON (r.old_coin_pub = old_coins.coin_pub)" 177 " INNER JOIN known_coins new_coins" 178 " ON (rr.coin_pub = new_coins.coin_pub)" 179 " INNER JOIN denominations new_denoms" 180 " ON (new_coins.denominations_serial = new_denoms.denominations_serial)" 181 " INNER JOIN denominations old_denoms" 182 " ON (old_coins.denominations_serial = old_denoms.denominations_serial)" 183 " WHERE rr.recoup_refresh_uuid>=$1" 184 " ORDER BY rr.recoup_refresh_uuid ASC;"); 185 qs = GNUNET_PQ_eval_prepared_multi_select ( 186 pg->conn, 187 "iterate_recoup_refreshes_above_serial_id", 188 params, 189 &recoup_refresh_serial_helper_cb, 190 &psc); 191 if (GNUNET_OK != psc.status) 192 return GNUNET_DB_STATUS_HARD_ERROR; 193 return qs; 194 }