rrd_add_ptr
rrd_add_strdup
+rrd_add_ptr_chunk
+rrd_add_strdup_chunk
rrd_clear_error
rrd_close
rrd_create
rrd_create_r
+rrd_create_r2
rrd_dontneed
rrd_dump
rrd_dump_r
rrd_update
rrd_update_r
rrd_update_v
+rrd_update_v_r
rrd_version
rrd_write
rrd_xport