pg_get_reserves.c (5679B)
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 #include "taler/platform.h" 17 #include "taler/taler_error_codes.h" 18 #include "taler/taler_dbevents.h" 19 #include "taler/taler_pq_lib.h" 20 #include "pg_helper.h" 21 #include "pg_get_reserves.h" 22 23 24 struct ReservesContext 25 { 26 27 /** 28 * Function to call for each bad sig loss. 29 */ 30 TALER_AUDITORDB_ReservesCallback cb; 31 32 /** 33 * Closure for @e cb 34 */ 35 void *cb_cls; 36 37 /** 38 * Plugin context. 39 */ 40 struct PostgresClosure *pg; 41 42 /** 43 * Query status to return. 44 */ 45 enum GNUNET_DB_QueryStatus qs; 46 }; 47 48 49 /** 50 * Helper function for #TAH_PG_get_reserves(). 51 * To be called with the results of a SELECT statement 52 * that has returned @a num_results results. 53 * 54 * @param cls closure of type `struct ReservesContext *` 55 * @param result the postgres result 56 * @param num_results the number of results in @a result 57 */ 58 static void 59 reserves_cb (void *cls, 60 PGresult *result, 61 unsigned int num_results) 62 { 63 struct ReservesContext *dcc = cls; 64 struct PostgresClosure *pg = dcc->pg; 65 66 for (unsigned int i = 0; i < num_results; i++) 67 { 68 struct TALER_AUDITORDB_Reserves dc; 69 struct GNUNET_PQ_ResultSpec rs[] = { 70 GNUNET_PQ_result_spec_uint64 ("auditor_reserves_rowid", 71 &dc.auditor_reserves_rowid), 72 GNUNET_PQ_result_spec_auto_from_type ("reserve_pub", 73 &dc.reserve_pub), 74 TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_balance", 75 &dc.reserve_balance), 76 TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_loss", 77 &dc.reserve_loss), 78 TALER_PQ_RESULT_SPEC_AMOUNT ("withdraw_fee_balance", 79 &dc.withdraw_fee_balance), 80 TALER_PQ_RESULT_SPEC_AMOUNT ("close_fee_balance", 81 &dc.close_fee_balance), 82 TALER_PQ_RESULT_SPEC_AMOUNT ("purse_fee_balance", 83 &dc.purse_fee_balance), 84 TALER_PQ_RESULT_SPEC_AMOUNT ("open_fee_balance", 85 &dc.open_fee_balance), 86 TALER_PQ_RESULT_SPEC_AMOUNT ("history_fee_balance", 87 &dc.history_fee_balance), 88 GNUNET_PQ_result_spec_absolute_time ("expiration_date", 89 &dc.expiration_date), 90 GNUNET_PQ_result_spec_string ("origin_account", 91 &dc.origin_account.full_payto), 92 GNUNET_PQ_result_spec_end 93 }; 94 enum GNUNET_GenericReturnValue rval; 95 96 if (GNUNET_OK != 97 GNUNET_PQ_extract_result (result, 98 rs, 99 i)) 100 { 101 GNUNET_break (0); 102 dcc->qs = GNUNET_DB_STATUS_HARD_ERROR; 103 return; 104 } 105 dcc->qs = i + 1; 106 rval = dcc->cb (dcc->cb_cls, 107 dc.auditor_reserves_rowid, 108 &dc); 109 GNUNET_PQ_cleanup_result (rs); 110 if (GNUNET_OK != rval) 111 break; 112 } 113 } 114 115 116 enum GNUNET_DB_QueryStatus 117 TAH_PG_get_reserves ( 118 void *cls, 119 int64_t limit, 120 uint64_t offset, 121 TALER_AUDITORDB_ReservesCallback cb, 122 void *cb_cls) 123 { 124 uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit); 125 struct PostgresClosure *pg = cls; 126 struct GNUNET_PQ_QueryParam params[] = { 127 GNUNET_PQ_query_param_uint64 (&offset), 128 GNUNET_PQ_query_param_uint64 (&plimit), 129 GNUNET_PQ_query_param_end 130 }; 131 struct ReservesContext dcc = { 132 .cb = cb, 133 .cb_cls = cb_cls, 134 .pg = pg 135 }; 136 enum GNUNET_DB_QueryStatus qs; 137 138 PREPARE (pg, 139 "auditor_reserves_get_desc", 140 "SELECT" 141 " auditor_reserves_rowid," 142 " reserve_pub," 143 " reserve_balance," 144 " reserve_loss," 145 " withdraw_fee_balance," 146 " close_fee_balance," 147 " purse_fee_balance," 148 " open_fee_balance," 149 " history_fee_balance," 150 " expiration_date," 151 " origin_account" 152 " FROM auditor_reserves" 153 " WHERE (auditor_reserves_rowid < $1)" 154 " ORDER BY auditor_reserves_rowid DESC" 155 " LIMIT $2" 156 ); 157 PREPARE (pg, 158 "auditor_reserves_get_asc", 159 "SELECT" 160 " auditor_reserves_rowid," 161 " reserve_pub," 162 " reserve_balance," 163 " reserve_loss," 164 " withdraw_fee_balance," 165 " close_fee_balance," 166 " purse_fee_balance," 167 " open_fee_balance," 168 " history_fee_balance," 169 " expiration_date," 170 " origin_account" 171 " FROM auditor_reserves" 172 " WHERE (auditor_reserves_rowid > $1)" 173 " ORDER BY auditor_reserves_rowid ASC" 174 " LIMIT $2" 175 ); 176 qs = GNUNET_PQ_eval_prepared_multi_select ( 177 pg->conn, 178 (limit > 0) 179 ? "auditor_reserves_get_asc" 180 : "auditor_reserves_get_desc", 181 params, 182 &reserves_cb, 183 &dcc); 184 if (qs > 0) 185 return dcc.qs; 186 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 187 return qs; 188 }