# # Copyright 2005,2006,2009,2014 Free Software Foundation, Inc. # # This file is part of GNU Radio # # GNU Radio is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3, or (at your option) # any later version. # # GNU Radio is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with GNU Radio; see the file COPYING. If not, write to # the Free Software Foundation, Inc., 51 Franklin Street, # Boston, MA 02110-1301, USA. # This directory contains the GNU Radio eventstream scheduler 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 * 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