Line data    Source code

       1             : /*
       2             :   This file is part of TALER
       3             :   Copyright (C) 2015, 2016, 2020 Taler Systems SA
       4             : 
       5             :   TALER is free software; you can redistribute it and/or modify it under the
       6             :   terms of the GNU Lesser General Public License as published by the Free Software
       7             :   Foundation; either version 3, or (at your option) any later version.
       8             : 
       9             :   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
      10             :   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
      11             :   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
      12             : 
      13             :   You should have received a copy of the GNU General Public License along with
      14             :   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
      15             : */
      16             : /**
      17             :  * @file merchantdb_plugin.c
      18             :  * @brief Logic to load database plugin
      19             :  * @author Christian Grothoff
      20             :  * @author Sree Harsha Totakura <sreeharsha@totakura.in>
      21             :  */
      22             : #include "platform.h"
      23             : #include <taler/taler_util.h>
      24             : #include "taler_merchant_util.h"
      25             : #include "taler_merchantdb_plugin.h"
      26             : #include "taler_merchantdb_lib.h"
      27             : #include <ltdl.h>
      28             : 
      29             : 
      30             : struct TALER_MERCHANTDB_Plugin *
      31          92 : TALER_MERCHANTDB_plugin_load (const struct GNUNET_CONFIGURATION_Handle *cfg)
      32             : {
      33             :   char *plugin_name;
      34             :   char *lib_name;
      35             :   struct TALER_MERCHANTDB_Plugin *plugin;
      36             : 
      37          92 :   if (GNUNET_SYSERR ==
      38          92 :       GNUNET_CONFIGURATION_get_value_string (cfg,
      39             :                                              "merchant",
      40             :                                              "db",
      41             :                                              &plugin_name))
      42             :   {
      43           0 :     GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
      44             :                                "merchant",
      45             :                                "db");
      46           0 :     return NULL;
      47             :   }
      48          92 :   (void) GNUNET_asprintf (&lib_name,
      49             :                           "libtaler_plugin_merchantdb_%s",
      50             :                           plugin_name);
      51          92 :   GNUNET_free (plugin_name);
      52          92 :   plugin = GNUNET_PLUGIN_load (TALER_MERCHANT_project_data (),
      53             :                                lib_name,
      54             :                                (void *) cfg);
      55          92 :   if (NULL == plugin)
      56             :   {
      57           0 :     GNUNET_free (lib_name);
      58           0 :     return NULL;
      59             :   }
      60          92 :   plugin->library_name = lib_name;
      61          92 :   return plugin;
      62             : }
      63             : 
      64             : 
      65             : void
      66          91 : TALER_MERCHANTDB_plugin_unload (struct TALER_MERCHANTDB_Plugin *plugin)
      67             : {
      68             :   char *lib_name;
      69             : 
      70          91 :   if (NULL == plugin)
      71           0 :     return;
      72          91 :   lib_name = plugin->library_name;
      73          91 :   GNUNET_assert (NULL == GNUNET_PLUGIN_unload (lib_name,
      74             :                                                plugin));
      75          91 :   GNUNET_free (lib_name);
      76             : }
      77             : 
      78             : 
      79             : /* end of merchantdb_plugin.c */