160 lines
4.5 KiB
C
160 lines
4.5 KiB
C
/*
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This file is part of TALER
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Copyright (C) 2022 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file exchangedb/pg_select_wire_out_above_serial_id.c
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* @brief Implementation of the select_wire_out_above_serial_id function for Postgres
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* @author Christian Grothoff
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*/
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#include "platform.h"
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#include "taler_error_codes.h"
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#include "taler_dbevents.h"
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#include "taler_pq_lib.h"
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#include "pg_select_wire_out_above_serial_id.h"
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#include "pg_helper.h"
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/**
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* Closure for #wire_out_serial_helper_cb().
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*/
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struct WireOutSerialContext
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{
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/**
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* Callback to call.
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*/
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TALER_EXCHANGEDB_WireTransferOutCallback cb;
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/**
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* Closure for @e cb.
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*/
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void *cb_cls;
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/**
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* Plugin context.
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*/
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struct PostgresClosure *pg;
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/**
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* Status code, set to #GNUNET_SYSERR on hard errors.
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*/
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int status;
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};
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/**
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* Helper function to be called with the results of a SELECT statement
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* that has returned @a num_results results.
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*
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* @param cls closure of type `struct WireOutSerialContext`
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* @param result the postgres result
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* @param num_results the number of results in @a result
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*/
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static void
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wire_out_serial_helper_cb (void *cls,
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PGresult *result,
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unsigned int num_results)
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{
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struct WireOutSerialContext *wosc = cls;
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struct PostgresClosure *pg = wosc->pg;
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for (unsigned int i = 0; i<num_results; i++)
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{
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uint64_t rowid;
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struct GNUNET_TIME_Timestamp date;
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struct TALER_WireTransferIdentifierRawP wtid;
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char *payto_uri;
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struct TALER_Amount amount;
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struct GNUNET_PQ_ResultSpec rs[] = {
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GNUNET_PQ_result_spec_uint64 ("wireout_uuid",
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&rowid),
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GNUNET_PQ_result_spec_timestamp ("execution_date",
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&date),
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GNUNET_PQ_result_spec_auto_from_type ("wtid_raw",
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&wtid),
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GNUNET_PQ_result_spec_string ("payto_uri",
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&payto_uri),
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TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
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&amount),
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GNUNET_PQ_result_spec_end
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};
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int ret;
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if (GNUNET_OK !=
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GNUNET_PQ_extract_result (result,
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rs,
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i))
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{
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GNUNET_break (0);
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wosc->status = GNUNET_SYSERR;
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return;
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}
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ret = wosc->cb (wosc->cb_cls,
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rowid,
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date,
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&wtid,
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payto_uri,
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&amount);
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GNUNET_PQ_cleanup_result (rs);
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if (GNUNET_OK != ret)
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break;
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}
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}
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enum GNUNET_DB_QueryStatus
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TEH_PG_select_wire_out_above_serial_id (
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void *cls,
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uint64_t serial_id,
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TALER_EXCHANGEDB_WireTransferOutCallback cb,
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void *cb_cls)
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{
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struct PostgresClosure *pg = cls;
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struct GNUNET_PQ_QueryParam params[] = {
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GNUNET_PQ_query_param_uint64 (&serial_id),
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GNUNET_PQ_query_param_end
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};
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struct WireOutSerialContext wosc = {
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.cb = cb,
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.cb_cls = cb_cls,
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.pg = pg,
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.status = GNUNET_OK
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};
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enum GNUNET_DB_QueryStatus qs;
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/* Used in #postgres_select_wire_out_above_serial_id() */
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PREPARE (pg,
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"audit_get_wire_incr",
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"SELECT"
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" wireout_uuid"
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",execution_date"
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",wtid_raw"
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",payto_uri"
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",amount_val"
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",amount_frac"
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" FROM wire_out"
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" JOIN wire_targets"
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" USING (wire_target_h_payto)"
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" WHERE wireout_uuid>=$1"
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" ORDER BY wireout_uuid ASC;");
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qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
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"audit_get_wire_incr",
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params,
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&wire_out_serial_helper_cb,
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&wosc);
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if (GNUNET_OK != wosc.status)
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return GNUNET_DB_STATUS_HARD_ERROR;
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return qs;
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}
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