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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2014 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
#
from gnuradio import gr, gr_unittest
from gnuradio import blocks, zeromq
import pmt
import time
def make_tag(key, value, offset, srcid=None):
tag = gr.tag_t()
tag.key = pmt.string_to_symbol(key)
tag.value = pmt.to_pmt(value)
tag.offset = offset
if srcid is not None:
tag.srcid = pmt.to_pmt(srcid)
return tag
def compare_tags(a, b):
return a.offset == b.offset and pmt.equal(a.key, b.key) and \
pmt.equal(a.value, b.value) and pmt.equal(a.srcid, b.srcid)
class qa_zeromq_pubsub (gr_unittest.TestCase):
def setUp(self):
self.send_tb = gr.top_block()
self.recv_tb = gr.top_block()
def tearDown(self):
self.send_tb = None
self.recv_tb = None
def test_001(self):
vlen = 10
src_data = list(range(vlen)) * 100
src = blocks.vector_source_f(src_data, False, vlen)
zeromq_pub_sink = zeromq.pub_sink(
gr.sizeof_float, vlen, "tcp://127.0.0.1:0", 0)
address = zeromq_pub_sink.last_endpoint()
zeromq_sub_source = zeromq.sub_source(
gr.sizeof_float, vlen, address, 0)
sink = blocks.vector_sink_f(vlen)
self.send_tb.connect(src, zeromq_pub_sink)
self.recv_tb.connect(zeromq_sub_source, sink)
self.recv_tb.start()
time.sleep(0.5)
self.send_tb.start()
time.sleep(0.5)
self.recv_tb.stop()
self.send_tb.stop()
self.recv_tb.wait()
self.send_tb.wait()
self.assertFloatTuplesAlmostEqual(sink.data(), src_data)
def test_002(self):
# same as test_001, but insert a tag and set key filter
vlen = 10
src_data = list(range(vlen)) * 100
src_tags = tuple([make_tag('key', 'val', 0, 'src'),
make_tag('key', 'val', 1, 'src')])
src = blocks.vector_source_f(src_data, False, vlen, tags=src_tags)
zeromq_pub_sink = zeromq.pub_sink(
gr.sizeof_float,
vlen,
"tcp://127.0.0.1:0",
0,
pass_tags=True,
key="filter_key")
address = zeromq_pub_sink.last_endpoint()
zeromq_sub_source = zeromq.sub_source(
gr.sizeof_float, vlen, address, 0, pass_tags=True, key="filter_key")
sink = blocks.vector_sink_f(vlen)
self.send_tb.connect(src, zeromq_pub_sink)
self.recv_tb.connect(zeromq_sub_source, sink)
# start both flowgraphs
self.recv_tb.start()
time.sleep(0.5)
self.send_tb.start()
time.sleep(0.5)
self.recv_tb.stop()
self.send_tb.stop()
self.recv_tb.wait()
self.send_tb.wait()
# compare data
self.assertFloatTuplesAlmostEqual(sink.data(), src_data)
# compare all tags
rx_tags = sink.tags()
self.assertEqual(len(src_tags), len(rx_tags))
for in_tag, out_tag in zip(src_tags, rx_tags):
self.assertTrue(compare_tags(in_tag, out_tag))
if __name__ == '__main__':
gr_unittest.run(qa_zeromq_pubsub)
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