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/*
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_get_wire_accounts.c
* @brief Implementation of the get_wire_accounts 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_get_wire_accounts.h"
#include "pg_helper.h"
/**
* Closure for #get_wire_accounts_cb().
*/
struct GetWireAccountsContext
{
/**
* Function to call per result.
*/
TALER_EXCHANGEDB_WireAccountCallback cb;
/**
* Closure for @e cb.
*/
void *cb_cls;
/**
* Flag set to #GNUNET_OK as long as everything is fine.
*/
enum GNUNET_GenericReturnValue status;
};
/**
* Invoke the callback for each result.
*
* @param cls a `struct MissingWireContext *`
* @param result SQL result
* @param num_results number of rows in @a result
*/
static void
get_wire_accounts_cb (void *cls,
PGresult *result,
unsigned int num_results)
{
struct GetWireAccountsContext *ctx = cls;
for (unsigned int i = 0; i < num_results; i++)
{
char *payto_uri;
struct TALER_MasterSignatureP master_sig;
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_string ("payto_uri",
&payto_uri),
GNUNET_PQ_result_spec_auto_from_type ("master_sig",
&master_sig),
GNUNET_PQ_result_spec_end
};
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
i))
{
GNUNET_break (0);
ctx->status = GNUNET_SYSERR;
return;
}
ctx->cb (ctx->cb_cls,
payto_uri,
&master_sig);
GNUNET_PQ_cleanup_result (rs);
}
}
enum GNUNET_DB_QueryStatus
TEH_PG_get_wire_accounts (void *cls,
TALER_EXCHANGEDB_WireAccountCallback cb,
void *cb_cls)
{
struct PostgresClosure *pg = cls;
struct GetWireAccountsContext ctx = {
.cb = cb,
.cb_cls = cb_cls,
.status = GNUNET_OK
};
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_end
};
enum GNUNET_DB_QueryStatus qs;
PREPARE (pg,
"get_wire_accounts",
"SELECT"
" payto_uri"
",master_sig"
" FROM wire_accounts"
" WHERE is_active");
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
"get_wire_accounts",
params,
&get_wire_accounts_cb,
&ctx);
if (GNUNET_OK != ctx.status)
return GNUNET_DB_STATUS_HARD_ERROR;
return qs;
}
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