title: gr-eventstream brief: The event stream scheduler tags:
- scheduler
- streams
- bursty author:
- Tim O'Shea tim.oshea753@gmail.com copyright_owner:
- Tim O'Shea tim.oshea753@gmail.com dependencies:
- gnuradio (>= 3.7.0) repo: https://github.com/osh/gr-eventstream.git stable_release: HEAD icon: https://raw.githubusercontent.com/gnuradio/pybombs/master/img/gr-eventstream.png
These blocks are intended to help improve the translation of streams of data items into scheduled-finite length events occurring in the data streams in both directions.
-
es.sink provides the translation from stream to events
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es.source provides the translation from events to streams
-
triggers cause events to be scheduled in es.source and es.sink block event queues.
Some examples of specific triggers included are, - es_trigger_edge_f: cause an event when float stream rises above a fixed threshold value - es_trigger_sample_timer: cause an event to occur on a periodic sample increment in the stream
- handlers consume events and do some ammount of signal processing on them
Some example of specific handlers included are, - es_handler_print: print the event to STDOUT - es_handler_pdu: convert the event to a PDU and send it out a message port - es_handler_insert_vector: a source handler which populates an event window from a PMT vector - es_handler_file: a sink handler which writes event contents out to a file