1 files changed, 61 insertions, 0 deletions
diff --git a/src/exchangedb/pg_get_coin_transactions.h b/src/exchangedb/pg_get_coin_transactions.h
new file mode 100644
index 000000000..46e32e094
--- /dev/null
+++ b/src/exchangedb/pg_get_coin_transactions.h
@@ -0,0 +1,61 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2022, 2023 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 pg_get_coin_transactions.h
+ * @brief implementation of the get_coin_transactions function
+ * @author Christian Grothoff
+ */
+#ifndef PG_GET_COIN_TRANSACTIONS_H
+#define PG_GET_COIN_TRANSACTIONS_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_exchangedb_plugin.h"
+
+
+/**
+ * Compile a list of (historic) transactions performed with the given coin
+ * (melt, refund, recoup and deposit operations).  Should return 0 if the @a
+ * coin_pub is unknown, otherwise determine @a etag_out and if it is past @a
+ * etag_in return the history after @a start_off. @a etag_out should be set
+ * to the last row ID of the given @a coin_pub in the coin history table.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param coin_pub coin to investigate
+ * @param start_off starting offset from which on to return entries
+ * @param etag_in up to this offset the client already has a response, do not
+ *                   return anything unless @a etag_out will be larger
+ * @param[out] etag_out set to the latest history offset known for this @a coin_pub
+ * @param[out] balance set to current balance of the coin
+ * @param[out] h_denom_pub set to denomination public key of the coin
+ * @param[out] tlp set to list of transactions, set to NULL if coin has no
+ *             transaction history past @a start_off or if @a etag_in is equal
+ *             to the value written to @a etag_out.
+ * @return database transaction status
+ */
+enum GNUNET_DB_QueryStatus
+TEH_PG_get_coin_transactions (
+  void *cls,
+  const struct TALER_CoinSpendPublicKeyP *coin_pub,
+  uint64_t start_off,
+  uint64_t etag_in,
+  uint64_t *etag_out,
+  struct TALER_Amount *balance,
+  struct TALER_DenominationHashP *h_denom_pub,
+  struct TALER_EXCHANGEDB_TransactionList **tlp);
+
+
+#endif