def get_sigs(cls, dest_base_rpath): """Yield signatures of any changed destination files If we are backing up across a pipe, we must flush the pipeline every so often so it doesn't get congested on destination end. """ flush_threshold = Globals.pipeline_max_length - 2 num_rorps_seen = 0 for src_rorp, dest_rorp in cls.CCPP: if (Globals.backup_reader is not Globals.backup_writer): num_rorps_seen += 1 if (num_rorps_seen > flush_threshold): num_rorps_seen = 0 yield iterfile.MiscIterFlushRepeat if not (src_rorp and dest_rorp and src_rorp == dest_rorp and (not Globals.preserve_hardlinks or Hardlink.rorp_eq(src_rorp, dest_rorp))): index = src_rorp and src_rorp.index or dest_rorp.index sig = cls.get_one_sig(dest_base_rpath, index, src_rorp, dest_rorp) if sig: cls.CCPP.flag_changed(index) yield sig
