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-rw-r--r--src/exchangedb/pg_select_reserves_in_above_serial_id.c164
1 files changed, 164 insertions, 0 deletions
diff --git a/src/exchangedb/pg_select_reserves_in_above_serial_id.c b/src/exchangedb/pg_select_reserves_in_above_serial_id.c
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index 000000000..21033e80d
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+++ b/src/exchangedb/pg_select_reserves_in_above_serial_id.c
@@ -0,0 +1,164 @@
+/*
+ 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.c
+ * @brief Implementation of the select_reserves_in_above_serial_id 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.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 (
+ void *cls,
+ 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_end
+ };
+ struct ReservesInSerialContext risc = {
+ .cb = cb,
+ .cb_cls = cb_cls,
+ .pg = pg,
+ .status = GNUNET_OK
+ };
+ enum GNUNET_DB_QueryStatus qs;
+
+ PREPARE (pg,
+ "audit_reserves_in_get_transactions_incr",
+ "SELECT"
+ " reserves.reserve_pub"
+ ",wire_reference"
+ ",credit"
+ ",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"
+ " ORDER BY reserve_in_serial_id;");
+ qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
+ "audit_reserves_in_get_transactions_incr",
+ params,
+ &reserves_in_serial_helper_cb,
+ &risc);
+ if (GNUNET_OK != risc.status)
+ return GNUNET_DB_STATUS_HARD_ERROR;
+ return qs;
+}