From 6991ca011b4f97d24066f82ccd09adde8a692f6a Mon Sep 17 00:00:00 2001
From: Joseph <Joseph.xu@efrei.net>
Date: Mon, 14 Nov 2022 07:35:56 -0500
Subject: remove more functions

---
 .../pg_select_reserves_in_above_serial_id.c        | 167 +++++++++++++++++++++
 1 file changed, 167 insertions(+)
 create mode 100644 src/exchangedb/pg_select_reserves_in_above_serial_id.c

(limited to 'src/exchangedb/pg_select_reserves_in_above_serial_id.c')

diff --git a/src/exchangedb/pg_select_reserves_in_above_serial_id.c b/src/exchangedb/pg_select_reserves_in_above_serial_id.c
new file mode 100644
index 000000000..1a6efc66b
--- /dev/null
+++ b/src/exchangedb/pg_select_reserves_in_above_serial_id.c
@@ -0,0 +1,167 @@
+/*
+   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;
+
+      /* 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",
+           "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"
+           " 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;
+}
-- 
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