C++ (Cpp) database_info_iterate_nextの例

コード例 #1

ファイル: task_database.c プロジェクト: ioev/RetroArch

void rarch_main_data_db_iterate(bool is_thread)
{
   database_info_handle_t      *db   = (db_ptr) ? db_ptr->handle : NULL;
   database_state_handle_t *db_state = (db_ptr) ? &db_ptr->state : NULL;
   const char *name = db ? db->list->elems[db->list_ptr].data    : NULL;

   if (!db)
      goto do_poll;

   switch (db->status)
   {
      case DATABASE_STATUS_ITERATE_BEGIN:
         if (db_state && !db_state->list)
            db_state->list = dir_list_new_special(NULL, DIR_LIST_DATABASES, NULL);
         db->status = DATABASE_STATUS_ITERATE_START;
         break;
      case DATABASE_STATUS_ITERATE_START:
         rarch_main_data_db_cleanup_state(db_state);
         db_state->list_index  = 0;
         db_state->entry_index = 0;
         database_info_iterate_start(db, name);
         break;
      case DATABASE_STATUS_ITERATE:
         if (database_info_iterate(&db_ptr->state, db) == 0)
         {
            db->status = DATABASE_STATUS_ITERATE_NEXT;
            db->type   = DATABASE_TYPE_ITERATE;
         }
         break;
      case DATABASE_STATUS_ITERATE_NEXT:
         if (database_info_iterate_next(db) == 0)
         {
            db->status = DATABASE_STATUS_ITERATE_START;
            db->type   = DATABASE_TYPE_ITERATE;
         }
         else
         {
            rarch_main_msg_queue_push_new(MSG_SCANNING_OF_DIRECTORY_FINISHED, 0, 180, true);
            pending_scan_finished = true;
            db->status = DATABASE_STATUS_FREE;
         }
         break;
      case DATABASE_STATUS_FREE:
         if (db_state->list)
            dir_list_free(db_state->list);
         db_state->list = NULL;
         rarch_main_data_db_cleanup_state(db_state);
         database_info_free(db);
         if (db_ptr->handle)
            free(db_ptr->handle);
         db_ptr->handle = NULL;
         break;
      default:
      case DATABASE_STATUS_NONE:
         goto do_poll;
   }

   return;

do_poll:
   if (database_info_poll(db_ptr) != -1)
   {
      if (db_ptr->handle)
         db_ptr->handle->status = DATABASE_STATUS_ITERATE_BEGIN;
   }
}

コード例 #2

ファイル: task_database.c プロジェクト: AlexFolland/RetroArch

static void rarch_dbscan_task_handler(retro_task_t *task)
{
   db_handle_t *db                  = (db_handle_t*)task->state;
   database_info_handle_t  *dbinfo  = db->handle;
   database_state_handle_t *dbstate = &db->state;
   const char *name                 = dbinfo ? 
      dbinfo->list->elems[dbinfo->list_ptr].data : NULL;

   if (!dbinfo || task->cancelled)
      goto task_finished;

   switch (dbinfo->status)
   {
      case DATABASE_STATUS_ITERATE_BEGIN:
         if (dbstate && !dbstate->list)
            dbstate->list = dir_list_new_special(
                  NULL, DIR_LIST_DATABASES, NULL);
         dbinfo->status = DATABASE_STATUS_ITERATE_START;
         break;
      case DATABASE_STATUS_ITERATE_START:
         rarch_main_data_db_cleanup_state(dbstate);
         dbstate->list_index  = 0;
         dbstate->entry_index = 0;
         database_info_iterate_start(dbinfo, name);
         break;
      case DATABASE_STATUS_ITERATE:
         if (database_info_iterate(&db->state, dbinfo) == 0)
         {
            dbinfo->status = DATABASE_STATUS_ITERATE_NEXT;
            dbinfo->type   = DATABASE_TYPE_ITERATE;
         }
         break;
      case DATABASE_STATUS_ITERATE_NEXT:
         if (database_info_iterate_next(dbinfo) == 0)
         {
            dbinfo->status = DATABASE_STATUS_ITERATE_START;
            dbinfo->type   = DATABASE_TYPE_ITERATE;
         }
         else
         {
            runloop_msg_queue_push(
                  msg_hash_to_str(MSG_SCANNING_OF_DIRECTORY_FINISHED),
                  0, 180, true);
            goto task_finished;
         }
         break;
      default:
      case DATABASE_STATUS_FREE:
      case DATABASE_STATUS_NONE:
         goto task_finished;
   }

   return;
task_finished:
   task->finished = true;

   if (db->state.list)
      dir_list_free(db->state.list);

   if (db->state.buf)
      free(db->state.buf);

   if (db->handle)
      database_info_free(db->handle);

   free(dbinfo);
   free(db);
}