get_reserves.c (5851B)
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/taler_pq_lib.h" 17 #include "pg_helper.h" 18 #include "auditor-database/get_reserves.h" 19 20 21 struct ReservesContext 22 { 23 24 /** 25 * Function to call for each bad sig loss. 26 */ 27 TALER_AUDITORDB_ReservesCallback cb; 28 29 /** 30 * Closure for @e cb 31 */ 32 void *cb_cls; 33 34 /** 35 * Plugin context. 36 */ 37 struct TALER_AUDITORDB_PostgresContext *pg; 38 39 /** 40 * Query status to return. 41 */ 42 enum GNUNET_DB_QueryStatus qs; 43 }; 44 45 46 /** 47 * Helper function for #TALER_AUDITORDB_get_reserves(). 48 * To be called with the results of a SELECT statement 49 * that has returned @a num_results results. 50 * 51 * @param cls closure of type `struct ReservesContext *` 52 * @param result the postgres result 53 * @param num_results the number of results in @a result 54 */ 55 static void 56 reserves_cb (void *cls, 57 PGresult *result, 58 unsigned int num_results) 59 { 60 struct ReservesContext *dcc = cls; 61 struct TALER_AUDITORDB_PostgresContext *pg = dcc->pg; 62 63 for (unsigned int i = 0; i < num_results; i++) 64 { 65 struct TALER_AUDITORDB_Reserves dc; 66 struct GNUNET_PQ_ResultSpec rs[] = { 67 GNUNET_PQ_result_spec_uint64 ("auditor_reserves_rowid", 68 &dc.auditor_reserves_rowid), 69 GNUNET_PQ_result_spec_auto_from_type ("reserve_pub", 70 &dc.reserve_pub), 71 TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_balance", 72 &dc.reserve_balance), 73 TALER_PQ_RESULT_SPEC_AMOUNT ("reserve_loss", 74 &dc.reserve_loss), 75 TALER_PQ_RESULT_SPEC_AMOUNT ("withdraw_fee_balance", 76 &dc.withdraw_fee_balance), 77 TALER_PQ_RESULT_SPEC_AMOUNT ("close_fee_balance", 78 &dc.close_fee_balance), 79 TALER_PQ_RESULT_SPEC_AMOUNT ("purse_fee_balance", 80 &dc.purse_fee_balance), 81 TALER_PQ_RESULT_SPEC_AMOUNT ("open_fee_balance", 82 &dc.open_fee_balance), 83 TALER_PQ_RESULT_SPEC_AMOUNT ("history_fee_balance", 84 &dc.history_fee_balance), 85 GNUNET_PQ_result_spec_absolute_time ("expiration_date", 86 &dc.expiration_date), 87 GNUNET_PQ_result_spec_allow_null ( 88 GNUNET_PQ_result_spec_string ("origin_account", 89 &dc.origin_account.full_payto), 90 NULL), 91 GNUNET_PQ_result_spec_end 92 }; 93 enum GNUNET_GenericReturnValue rval; 94 95 dc.origin_account.full_payto = NULL; 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 TALER_AUDITORDB_get_reserves (struct TALER_AUDITORDB_PostgresContext *pg, 118 int64_t limit, 119 uint64_t offset, 120 TALER_AUDITORDB_ReservesCallback cb, 121 void *cb_cls) 122 { 123 uint64_t plimit = (uint64_t) ((limit < 0) ? -limit : limit); 124 struct GNUNET_PQ_QueryParam params[] = { 125 GNUNET_PQ_query_param_uint64 (&offset), 126 GNUNET_PQ_query_param_uint64 (&plimit), 127 GNUNET_PQ_query_param_end 128 }; 129 struct ReservesContext dcc = { 130 .cb = cb, 131 .cb_cls = cb_cls, 132 .pg = pg 133 }; 134 enum GNUNET_DB_QueryStatus qs; 135 136 PREPARE (pg, 137 "auditor_reserves_get_desc", 138 "SELECT" 139 " auditor_reserves_rowid," 140 " reserve_pub," 141 " reserve_balance," 142 " reserve_loss," 143 " withdraw_fee_balance," 144 " close_fee_balance," 145 " purse_fee_balance," 146 " open_fee_balance," 147 " history_fee_balance," 148 " expiration_date," 149 " origin_account" 150 " FROM auditor_reserves" 151 " WHERE (auditor_reserves_rowid < $1)" 152 " ORDER BY auditor_reserves_rowid DESC" 153 " LIMIT $2" 154 ); 155 PREPARE (pg, 156 "auditor_reserves_get_asc", 157 "SELECT" 158 " auditor_reserves_rowid," 159 " reserve_pub," 160 " reserve_balance," 161 " reserve_loss," 162 " withdraw_fee_balance," 163 " close_fee_balance," 164 " purse_fee_balance," 165 " open_fee_balance," 166 " history_fee_balance," 167 " expiration_date," 168 " origin_account" 169 " FROM auditor_reserves" 170 " WHERE (auditor_reserves_rowid > $1)" 171 " ORDER BY auditor_reserves_rowid ASC" 172 " LIMIT $2" 173 ); 174 qs = GNUNET_PQ_eval_prepared_multi_select ( 175 pg->conn, 176 (limit > 0) 177 ? "auditor_reserves_get_asc" 178 : "auditor_reserves_get_desc", 179 params, 180 &reserves_cb, 181 &dcc); 182 if (qs > 0) 183 return dcc.qs; 184 GNUNET_break (GNUNET_DB_STATUS_HARD_ERROR != qs); 185 return qs; 186 }