def on_pub(sub, pub, payload):
print("Received on %s" %
dps.get_listen_address(dps.subscription_get_node(sub)))
print(
"Pub %s(%d) matches:" %
(dps.publication_get_uuid(pub), dps.publication_get_sequence_num(pub)))
print(" pub " + " | ".join(dps.publication_get_topics(pub)))
print(" sub " + " | ".join(dps.subscription_get_topics(sub)))
print(payload.tobytes())
def on_pub(sub, pub, payload):
print("Pub %s(%d) matches:" % (dps.publication_get_uuid(pub), dps.publication_get_sequence_num(pub)))
print(" pub " + " | ".join(dps.publication_get_topics(pub)))
print(" sub " + " | ".join(dps.subscription_get_topics(sub)))
print(payload.tobytes())
if dps.publication_is_ack_requested(pub):
ack_msg = "This is an ACK from %s" % (dps.get_listen_address(dps.publication_get_node(pub)))
print("Sending ack for pub UUID %s(%d)" % (dps.publication_get_uuid(pub), dps.publication_get_sequence_num(pub)))
print(" %s" % (ack_msg))
dps.ack_publication(pub, ack_msg);
def subscriber(topic, remote_listen_addr):
node = dps.create_node("/", key_store, None)
dps.start_node(node, 0, None)
print("Subscriber is listening on %s" % dps.get_listen_address(node))
sub = dps.create_subscription(node, [topic])
dps.subscribe(sub, on_pub)
if remote_listen_addr != None:
event.clear()
ret = dps.link(node, str(remote_listen_addr), on_link)
if ret == dps.OK:
event.wait()
nodes.append(node)
return node
print(payload.tobytes())
if dps.publication_is_ack_requested(pub):
ack_msg = "This is an ACK from %s" % (dps.get_listen_address(dps.publication_get_node(pub)))
print("Sending ack for pub UUID %s(%d)" % (dps.publication_get_uuid(pub), dps.publication_get_sequence_num(pub)))
print(" %s" % (ack_msg))
dps.ack_publication(pub, ack_msg);
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("-d", "--debug", action='store_true',
help="Enable debug ouput if built for debug.")
args = parser.parse_args()
dps.cvar.debug = args.debug
node = dps.create_node("/")
dps.start_node(node, dps.MCAST_PUB_ENABLE_RECV + dps.MCAST_PUB_ENABLE_SEND, None)
print("Subscriber is listening on %s" % (dps.get_listen_address(node)))
sub = dps.create_subscription(node, ['a/b/c']);
dps.subscribe(sub, on_pub)
time.sleep(1)
# Let publishers know we are here
pub = dps.create_publication(node)
dps.init_publication(pub, ['new_subscriber'], False)
dps.publish(pub, "Hi")
if not sys.flags.interactive:
while True:
time.sleep(1)
dps.destroy_key_store(key_store)
if args.port != None:
mcast = dps.MCAST_PUB_DISABLED
node = dps.create_node("/", key_store, node_id)
listen_addr = None
if args.listen != None:
listen_addr = dps.create_address()
try:
dps.set_address(listen_addr, "[::]:%d" % (int(args.listen)))
except ValueError:
dps.set_address(listen_addr, args.listen)
dps.start_node(node, mcast, listen_addr)
print("Publisher is listening on %s" % (dps.get_listen_address(node)))
if args.port != None:
try:
addr_text = "[::1]:%d" % (int(args.port))
except ValueError:
addr_text = args.port
event.clear()
ret = dps.link(node, addr_text, on_link)
if ret == dps.OK:
event.wait()
else:
print("link %s returned %s" % (addr_text, dps.err_txt(ret)))
pub = dps.create_publication(node)
dps.init_publication(pub, ['a/b/c'], False, None, on_ack)
def on_link(node, addr, status):
if status == dps.OK:
print("Linked %s to %s" % (dps.get_listen_address(node), addr))
event.set()
event.wait()
nodes.append(node)
return node
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("-d",
"--debug",
action='store_true',
help="Enable debug ouput if built for debug.")
args = parser.parse_args()
dps.cvar.debug = args.debug
sub1 = subscriber('B/B', None)
sub2 = subscriber('A/A', dps.get_listen_address(sub1))
sub3 = subscriber('C/C', dps.get_listen_address(sub1))
sub4 = subscriber('a/b/c', dps.get_listen_address(sub2))
sub5 = subscriber('d/e/f', dps.get_listen_address(sub2))
sub6 = subscriber('g/h/i', dps.get_listen_address(sub2))
sub7 = subscriber('1/2/3', dps.get_listen_address(sub3))
sub8 = subscriber('4/5/6', dps.get_listen_address(sub3))
sub9 = subscriber('7/8/9', dps.get_listen_address(sub3))
time.sleep(15)
sub10 = subscriber('+/#', dps.get_listen_address(sub7))
time.sleep(15)
sub11 = subscriber('+/#', dps.get_listen_address(sub1))