lookup_custom_units_by_names.h (2202B)
1 /* 2 This file is part of TALER 3 Copyright (C) 2025 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 src/include/merchant-database/lookup_custom_units_by_names.h 18 * @brief Lookup custom measurement units by name 19 * @author Bohdan Potuzhnyi 20 */ 21 #ifndef MERCHANT_DATABASE_LOOKUP_CUSTOM_UNITS_BY_NAMES_H 22 #define MERCHANT_DATABASE_LOOKUP_CUSTOM_UNITS_BY_NAMES_H 23 24 #include <taler/taler_util.h> 25 #include "merchantdb_lib.h" 26 27 28 struct TALER_MERCHANTDB_PostgresContext; 29 /* Callback typedefs */ 30 /** 31 * Typically called by `lookup_units`. 32 * 33 * @param cls closure 34 * @param unit_serial database identifier 35 * @param ud measurement unit details (borrowed) 36 */ 37 typedef void 38 (*TALER_MERCHANTDB_UnitsCallback)( 39 void *cls, 40 uint64_t unit_serial, 41 const struct TALER_MERCHANTDB_UnitDetails *ud); 42 43 /** 44 * Lookup custom measurement units by name. 45 * 46 * @param pg database context 47 * @param instance_id instance to fetch units for 48 * @param units array of unit identifiers 49 * @param num_units length of @a units 50 * @param cb function to call with each unit 51 * @param cb_cls closure for @a cb 52 * @return database result code 53 */ 54 enum GNUNET_DB_QueryStatus 55 TALER_MERCHANTDB_lookup_custom_units_by_names (struct TALER_MERCHANTDB_PostgresContext *pg, 56 const char *instance_id, 57 const char *const *units, 58 size_t num_units, 59 TALER_MERCHANTDB_UnitsCallback cb, 60 void *cb_cls); 61 62 #endif