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/*
This file is part of TALER
Copyright (C) 2015 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/exchangedb_plugin.c
* @brief Logic to load database plugin
* @author Christian Grothoff
* @author Sree Harsha Totakura <sreeharsha@totakura.in>
*/
#include "platform.h"
#include "taler_exchangedb_lib.h"
#include <ltdl.h>
struct TALER_EXCHANGEDB_Plugin *
TALER_EXCHANGEDB_plugin_load (const struct GNUNET_CONFIGURATION_Handle *cfg,
bool skip_preflight)
{
char *plugin_name;
char *lib_name;
struct TALER_EXCHANGEDB_Plugin *plugin;
if (GNUNET_SYSERR ==
GNUNET_CONFIGURATION_get_value_string (cfg,
"exchange",
"db",
&plugin_name))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
"exchange",
"db");
return NULL;
}
GNUNET_asprintf (&lib_name,
"libtaler_plugin_exchangedb_%s",
plugin_name);
GNUNET_free (plugin_name);
plugin = GNUNET_PLUGIN_load (lib_name,
(void *) cfg);
if (NULL != plugin)
plugin->library_name = lib_name;
else
GNUNET_free (lib_name);
if ( (! skip_preflight) &&
(GNUNET_OK !=
plugin->preflight (plugin->cls)) )
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Database not ready. Try running taler-exchange-dbinit!\n");
TALER_EXCHANGEDB_plugin_unload (plugin);
return NULL;
}
return plugin;
}
void
TALER_EXCHANGEDB_plugin_unload (struct TALER_EXCHANGEDB_Plugin *plugin)
{
char *lib_name;
if (NULL == plugin)
return;
lib_name = plugin->library_name;
GNUNET_assert (NULL == GNUNET_PLUGIN_unload (lib_name,
plugin));
GNUNET_free (lib_name);
}
/* end of exchangedb_plugin.c */
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