C++ (Cpp) PluginInfo::get_options_list Exemples

Exemple #1

/* return value means the number of successfully loaded plugins */
static int
enumerate_plugins(const gchar *plugin_path, GPtrArray *plugin_array, GOptionContext *ctx)
{
  GDir *dir;
  const gchar *fname;

  dir = g_dir_open(plugin_path, 0, NULL);
  if (!dir)
    {
      ERROR("unable to open plugin directory %s (err=%s)\n", plugin_path, strerror(errno));
      return 0;
    }

  DEBUG("search for plugins in directory %s\n", plugin_path);

  /* add common options to help context: */
  g_option_context_add_main_entries(ctx, loggen_options, 0);

  GModule *module = NULL;
  while ((fname = g_dir_read_name(dir)))
    {
      if (!g_str_has_suffix(fname,G_MODULE_SUFFIX))
        continue;

      gchar *full_lib_path = g_build_filename(plugin_path,fname,NULL);
      module = g_module_open(full_lib_path, G_MODULE_BIND_LAZY);
      if (!module)
        {
          ERROR("error opening plugin module %s (%s)\n", fname, g_module_error());
          continue;
        }

      /* get plugin info from lib file */
      PluginInfo *plugin;
      if (!g_module_symbol(module, LOGGEN_PLUGIN_INFO, (gpointer *) &plugin))
        {
          DEBUG("%s isn't a plugin for loggen. skip it. (%s)\n", fname, g_module_error());
          g_module_close(module);
          continue;
        }

      if (is_plugin_already_loaded(plugin_array, plugin->name))
        {
          DEBUG("plugin %s was already loaded. skip it\n", plugin->name);
          continue;
        }

      if (plugin->set_generate_message)
        plugin->set_generate_message(generate_message);
      else
        ERROR("plugin (%s) doesn't have set_generate_message function\n",plugin->name);

      g_ptr_array_add(plugin_array, (gpointer) plugin);

      /* create sub group for plugin specific parameters: */
      GOptionGroup *group = g_option_group_new(plugin->name, plugin->name, "Show options", NULL, NULL);
      g_option_group_add_entries(group, plugin->get_options_list());
      g_option_context_add_group(ctx, group);

      DEBUG("%s in %s is a loggen plugin\n", plugin->name, fname);
    }

  if (plugin_array->len == 0)
    {
      ERROR("no loggen plugin found in %s\n", plugin_path);
    }

  return plugin_array->len;
}