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-rw-r--r--src/exchangedb/pg_select_purse_decisions_above_serial_id.c162
1 files changed, 162 insertions, 0 deletions
diff --git a/src/exchangedb/pg_select_purse_decisions_above_serial_id.c b/src/exchangedb/pg_select_purse_decisions_above_serial_id.c
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index 000000000..f301ea78a
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+++ b/src/exchangedb/pg_select_purse_decisions_above_serial_id.c
@@ -0,0 +1,162 @@
+/*
+ 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_purse_decisions_above_serial_id.c
+ * @brief Implementation of the select_purse_decisions_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_purse_decisions_above_serial_id.h"
+#include "pg_helper.h"
+
+/**
+ * Closure for #purse_decision_serial_helper_cb().
+ */
+struct PurseDecisionSerialContext
+{
+
+ /**
+ * Callback to call.
+ */
+ TALER_EXCHANGEDB_PurseDecisionCallback 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 PurseRefundSerialContext`
+ * @param result the postgres result
+ * @param num_results the number of results in @a result
+ */
+static void
+purse_decision_serial_helper_cb (void *cls,
+ PGresult *result,
+ unsigned int num_results)
+{
+ struct PurseDecisionSerialContext *dsc = cls;
+ struct PostgresClosure *pg = dsc->pg;
+
+ for (unsigned int i = 0; i<num_results; i++)
+ {
+ struct TALER_PurseContractPublicKeyP purse_pub;
+ struct TALER_ReservePublicKeyP reserve_pub;
+ bool no_reserve = true;
+ uint64_t rowid;
+ struct TALER_Amount val;
+ struct GNUNET_PQ_ResultSpec rs[] = {
+ GNUNET_PQ_result_spec_auto_from_type ("purse_pub",
+ &purse_pub),
+ GNUNET_PQ_result_spec_allow_null (
+ GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
+ &reserve_pub),
+ &no_reserve),
+ TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
+ &val),
+ GNUNET_PQ_result_spec_uint64 ("purse_deposit_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);
+ dsc->status = GNUNET_SYSERR;
+ return;
+ }
+ ret = dsc->cb (dsc->cb_cls,
+ rowid,
+ &purse_pub,
+ no_reserve ? NULL : &reserve_pub,
+ &val);
+ GNUNET_PQ_cleanup_result (rs);
+ if (GNUNET_OK != ret)
+ break;
+ }
+}
+
+
+enum GNUNET_DB_QueryStatus
+TEH_PG_select_purse_decisions_above_serial_id (
+ void *cls,
+ uint64_t serial_id,
+ bool refunded,
+ TALER_EXCHANGEDB_PurseDecisionCallback cb,
+ void *cb_cls)
+{
+ struct PostgresClosure *pg = cls;
+ struct GNUNET_PQ_QueryParam params[] = {
+ GNUNET_PQ_query_param_uint64 (&serial_id),
+ GNUNET_PQ_query_param_bool (refunded),
+ GNUNET_PQ_query_param_end
+ };
+ struct PurseDecisionSerialContext dsc = {
+ .cb = cb,
+ .cb_cls = cb_cls,
+ .pg = pg,
+ .status = GNUNET_OK
+ };
+ enum GNUNET_DB_QueryStatus qs;
+
+ PREPARE (pg,
+ "audit_get_purse_decisions_incr",
+ "SELECT"
+ " pd.purse_pub"
+ ",pm.reserve_pub"
+ ",pd.purse_decision_serial_id"
+ ",pr.amount_with_fee"
+ " FROM purse_decision pd"
+ " JOIN purse_requests pr ON (pd.purse_pub = pr.purse_pub)"
+ " LEFT JOIN purse_merges pm ON (pm.purse_pub = pd.purse_pub)"
+ " WHERE ("
+ " (purse_decision_serial_id>=$1) AND "
+ " (refunded=$2)"
+ " )"
+ " ORDER BY purse_decision_serial_id ASC;");
+
+
+ qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
+ "audit_get_purse_decisions_incr",
+ params,
+ &purse_decision_serial_helper_cb,
+ &dsc);
+ if (GNUNET_OK != dsc.status)
+ return GNUNET_DB_STATUS_HARD_ERROR;
+ return qs;
+}