rrd_seek(rrd_file, 0, SEEK_SET);
rrd_write(rrd_file, rrd.stat_head, sizeof(stat_head_t) * 1);
rrd_write(rrd_file, rrd.ds_def,
rrd_seek(rrd_file, 0, SEEK_SET);
rrd_write(rrd_file, rrd.stat_head, sizeof(stat_head_t) * 1);
rrd_write(rrd_file, rrd.ds_def,