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          103 : 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          103 :   if (GNUNET_SYSERR ==
      38          103 :       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          103 :   (void) GNUNET_asprintf (&lib_name,
      49              :                           "libtaler_plugin_merchantdb_%s",
      50              :                           plugin_name);
      51          103 :   GNUNET_free (plugin_name);
      52          103 :   plugin = GNUNET_PLUGIN_load (TALER_MERCHANT_project_data (),
      53              :                                lib_name,
      54              :                                (void *) cfg);
      55          103 :   if (NULL == plugin)
      56              :   {
      57            0 :     GNUNET_free (lib_name);
      58            0 :     return NULL;
      59              :   }
      60          103 :   plugin->library_name = lib_name;
      61          103 :   return plugin;
      62              : }
      63              : 
      64              : 
      65              : void
      66          102 : TALER_MERCHANTDB_plugin_unload (struct TALER_MERCHANTDB_Plugin *plugin)
      67              : {
      68              :   char *lib_name;
      69              : 
      70          102 :   if (NULL == plugin)
      71            0 :     return;
      72          102 :   lib_name = plugin->library_name;
      73          102 :   GNUNET_assert (NULL == GNUNET_PLUGIN_unload (lib_name,
      74              :                                                plugin));
      75          102 :   GNUNET_free (lib_name);
      76              : }
      77              : 
      78              : 
      79              : /* end of merchantdb_plugin.c */