gnuradio/gnuradio — pull request #176 by balint256 (2014-03-27 18:39:20+00:00)
Title: blocks: added sleep to pdu_to_tagged_stream so it doesn't have to spin...

...when there is no message available (after already polling for one unsuccessfully)

Default behaviour is the same (will spin). CPU consumption can be reduced by having it sleep for a small period of time (otherwise entire core will be used for spinning).