tdb->map_ptr = (void *)mmap(NULL, tdb->map_size,
tdb->read_only?PROT_READ:PROT_READ|PROT_WRITE,
MAP_SHARED | MAP_FILE, tdb->fd, 0);
tdb->map_ptr = (void *)mmap(NULL, tdb->map_size,
tdb->read_only?PROT_READ:PROT_READ|PROT_WRITE,
MAP_SHARED | MAP_FILE, tdb->fd, 0);