diff options
Diffstat (limited to 'src/exchangedb/pg_select_reserves_in_above_serial_id_by_account.c')
-rw-r--r-- | src/exchangedb/pg_select_reserves_in_above_serial_id_by_account.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/src/exchangedb/pg_select_reserves_in_above_serial_id_by_account.c b/src/exchangedb/pg_select_reserves_in_above_serial_id_by_account.c new file mode 100644 index 000000000..ba73994f0 --- /dev/null +++ b/src/exchangedb/pg_select_reserves_in_above_serial_id_by_account.c @@ -0,0 +1,169 @@ +/* + This file is part of TALER + Copyright (C) 2022 Taler Systems SA + + TALER is free software; you can redistribute it and/or modify it under the + terms of the GNU General Public License as published by the Free Software + Foundation; either version 3, or (at your option) any later version. + + TALER is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR + A PARTICULAR PURPOSE. See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with + TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ +/** + * @file exchangedb/pg_select_reserves_in_above_serial_id_by_account.c + * @brief Implementation of the select_reserves_in_above_serial_id_by_account function for Postgres + * @author Christian Grothoff + */ +#include "platform.h" +#include "taler_error_codes.h" +#include "taler_dbevents.h" +#include "taler_pq_lib.h" +#include "pg_select_reserves_in_above_serial_id_by_account.h" +#include "pg_helper.h" +/** + * Closure for #reserves_in_serial_helper_cb(). + */ +struct ReservesInSerialContext +{ + + /** + * Callback to call. + */ + TALER_EXCHANGEDB_ReserveInCallback cb; + + /** + * Closure for @e cb. + */ + void *cb_cls; + + /** + * Plugin context. + */ + struct PostgresClosure *pg; + + /** + * Status code, set to #GNUNET_SYSERR on hard errors. + */ + enum GNUNET_GenericReturnValue status; +}; + + +/** + * Helper function to be called with the results of a SELECT statement + * that has returned @a num_results results. + * + * @param cls closure of type `struct ReservesInSerialContext` + * @param result the postgres result + * @param num_results the number of results in @a result + */ +static void +reserves_in_serial_helper_cb (void *cls, + PGresult *result, + unsigned int num_results) +{ + struct ReservesInSerialContext *risc = cls; + struct PostgresClosure *pg = risc->pg; + + for (unsigned int i = 0; i<num_results; i++) + { + struct TALER_ReservePublicKeyP reserve_pub; + struct TALER_Amount credit; + char *sender_account_details; + struct GNUNET_TIME_Timestamp execution_date; + uint64_t rowid; + uint64_t wire_reference; + struct GNUNET_PQ_ResultSpec rs[] = { + GNUNET_PQ_result_spec_auto_from_type ("reserve_pub", + &reserve_pub), + GNUNET_PQ_result_spec_uint64 ("wire_reference", + &wire_reference), + TALER_PQ_RESULT_SPEC_AMOUNT ("credit", + &credit), + GNUNET_PQ_result_spec_timestamp ("execution_date", + &execution_date), + GNUNET_PQ_result_spec_string ("sender_account_details", + &sender_account_details), + GNUNET_PQ_result_spec_uint64 ("reserve_in_serial_id", + &rowid), + GNUNET_PQ_result_spec_end + }; + enum GNUNET_GenericReturnValue ret; + + if (GNUNET_OK != + GNUNET_PQ_extract_result (result, + rs, + i)) + { + GNUNET_break (0); + risc->status = GNUNET_SYSERR; + return; + } + ret = risc->cb (risc->cb_cls, + rowid, + &reserve_pub, + &credit, + sender_account_details, + wire_reference, + execution_date); + GNUNET_PQ_cleanup_result (rs); + if (GNUNET_OK != ret) + break; + } +} + + +enum GNUNET_DB_QueryStatus +TEH_PG_select_reserves_in_above_serial_id_by_account ( + void *cls, + const char *account_name, + uint64_t serial_id, + TALER_EXCHANGEDB_ReserveInCallback cb, + void *cb_cls) +{ + struct PostgresClosure *pg = cls; + struct GNUNET_PQ_QueryParam params[] = { + GNUNET_PQ_query_param_uint64 (&serial_id), + GNUNET_PQ_query_param_string (account_name), + GNUNET_PQ_query_param_end + }; + struct ReservesInSerialContext risc = { + .cb = cb, + .cb_cls = cb_cls, + .pg = pg, + .status = GNUNET_OK + }; + enum GNUNET_DB_QueryStatus qs; + + /* Used in postgres_select_reserves_in_above_serial_id() to obtain inbound + transactions for reserves with serial id '\geq' the given parameter */ + PREPARE (pg, + "audit_reserves_in_get_transactions_incr_by_account", + "SELECT" + " reserves.reserve_pub" + ",wire_reference" + ",credit_val" + ",credit_frac" + ",execution_date" + ",payto_uri AS sender_account_details" + ",reserve_in_serial_id" + " FROM reserves_in" + " JOIN reserves " + " USING (reserve_pub)" + " JOIN wire_targets" + " ON (wire_source_h_payto = wire_target_h_payto)" + " WHERE reserve_in_serial_id>=$1 AND exchange_account_section=$2" + " ORDER BY reserve_in_serial_id;"); + + qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn, + "audit_reserves_in_get_transactions_incr_by_account", + params, + &reserves_in_serial_helper_cb, + &risc); + if (GNUNET_OK != risc.status) + return GNUNET_DB_STATUS_HARD_ERROR; + return qs; +} |