C++ (Cpp) libretrodb_create Examples

Example #1

File: testlib.c Project: jeapostrophe/RetroArch

static int create_db(lua_State *L)
{
   int rv;
   RFILE *dst;
   const char *db_file = luaL_checkstring(L, -2);

   if (!lua_isfunction(L, -1))
   {
      lua_pushstring(L, "second argument must be a function");
      lua_error(L);
   }
   lua_setfield(L, LUA_REGISTRYINDEX, "testlib_get_value");

   dst = retro_fopen(db_file, RFILE_MODE_WRITE, -1);
   if (!dst)
   {
      lua_pushstring(L, "Could not open destination file");
      lua_error(L);
   }

   rv = libretrodb_create(dst, &value_provider, L);
   retro_fclose(dst);

   return 0;
}

Example #2

File: c_converter.c Project: Monroe88/RetroArch

int main(int argc, char** argv)
{
   const char* rdb_path;
   dat_converter_match_key_t* match_key = NULL;
   RFILE* rdb_file;

   if (argc < 2)
   {
      printf("usage:\n%s <db file> [args ...]\n", *argv);
      dat_converter_exit(1);
   }
   argc--;
   argv++;

   rdb_path  = *argv;
   argc--;
   argv++;

   if (argc > 1 &&** argv)
   {
      match_key = dat_converter_match_key_create(*argv);
      argc--;
      argv++;
   }

   int dat_count                         = argc;
   char** dat_buffers                    = (char**)
      malloc(dat_count * sizeof(*dat_buffers));
   char** dat_buffer                     = dat_buffers;
   dat_converter_list_t* dat_parser_list = NULL;

   while (argc)
   {
      size_t dat_file_size;
      dat_converter_list_t* dat_lexer_list = NULL;
      FILE* dat_file                       = fopen(*argv, "r");

      if (!dat_file)
      {
         printf("could not open dat file '%s': %s\n",
               *argv, strerror(errno));
         dat_converter_exit(1);
      }

      fseek(dat_file, 0, SEEK_END);
      dat_file_size = ftell(dat_file);
      fseek(dat_file, 0, SEEK_SET);
      *dat_buffer = (char*)malloc(dat_file_size + 1);
      fread(*dat_buffer, 1, dat_file_size, dat_file);
      fclose(dat_file);
      (*dat_buffer)[dat_file_size] = '\0';

      printf("Parsing dat file '%s'...\n", *argv);
      dat_lexer_list  = dat_converter_lexer(*dat_buffer, *argv);
      dat_parser_list = dat_converter_parser(
            dat_parser_list, dat_lexer_list, match_key);

      dat_converter_list_free(dat_lexer_list);

      argc--;
      argv++;
      dat_buffer++;
   }

   rdb_file = filestream_open(rdb_path,
         RETRO_VFS_FILE_ACCESS_WRITE,
         RETRO_VFS_FILE_ACCESS_HINT_NONE);

   if (!rdb_file)
   {
      printf(
         "Could not open destination file '%s': %s\n",
         rdb_path,
         strerror(errno)
      );
      dat_converter_exit(1);
   }

   dat_converter_list_item_t* current_item =
      &dat_parser_list->values[dat_parser_list->count];

   dat_converter_value_provider_init();
   libretrodb_create(rdb_file,
         (libretrodb_value_provider)&dat_converter_value_provider,
         &current_item);
   dat_converter_value_provider_free();

   filestream_close(rdb_file);

   dat_converter_list_free(dat_parser_list);

   while (dat_count--)
      free(dat_buffers[dat_count]);
   free(dat_buffers);

   dat_converter_match_key_free(match_key);

   return 0;
}