1 files changed, 47 insertions, 0 deletions
diff --git a/src/backenddb/pg_insert_order_lock.h b/src/backenddb/pg_insert_order_lock.h
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+++ b/src/backenddb/pg_insert_order_lock.h
@@ -0,0 +1,47 @@
+/*
+   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 backenddb/pg_insert_order_lock.h
+ * @brief implementation of the insert_order_lock function for Postgres
+ * @author Iván Ávalos
+ */
+#ifndef PG_INSERT_ORDER_LOCK_H
+#define PG_INSERT_ORDER_LOCK_H
+
+#include <taler/taler_util.h>
+#include <taler/taler_json_lib.h>
+#include "taler_merchantdb_plugin.h"
+
+/**
+ * Lock inventory stock to a particular order.
+ *
+ * @param cls closure
+ * @param instance_id identifies the instance responsible for the order
+ * @param order_id alphanumeric string that uniquely identifies the order
+ * @param product_id uniquely identifies the product to be locked
+ * @param quantity how many units should be locked to the @a order_id
+ * @return transaction status,
+ *   #GNUNET_DB_STATUS_SUCCESS_NO_RESULTS means there are insufficient stocks
+ *   #GNUNET_DB_STATUS_SUCCESS_ONE_RESULT indicates success
+ */
+enum GNUNET_DB_QueryStatus
+TMH_PG_insert_order_lock (void *cls,
+                          const char *instance_id,
+                          const char *order_id,
+                          const char *product_id,
+                          uint64_t quantity);
+
+#endif