async def _unittest_slow_diagnostic(generated_packages: typing.List[
pyuavcan.dsdl.GeneratedPackageInfo], caplog: typing.Any) -> None:
from pyuavcan.application import diagnostic
from uavcan.time import SynchronizedTimestamp_1_0
assert generated_packages
pres = Presentation(LoopbackTransport(2222))
pub = pres.make_publisher_with_fixed_subject_id(diagnostic.Record)
diag = diagnostic.DiagnosticSubscriber(pres)
diag.start()
caplog.clear()
await pub.publish(
diagnostic.Record(
timestamp=SynchronizedTimestamp_1_0(123456789),
severity=diagnostic.Severity(diagnostic.Severity.INFO),
text="Hello world!",
))
await asyncio.sleep(1.0)
print("Captured log records:")
for lr in caplog.records:
print(" ", lr)
assert isinstance(lr, logging.LogRecord)
pat = r"uavcan\.diagnostic\.Record: node=2222 severity=2 ts_sync=123\.456789 ts_local=\S+:\nHello world!"
if lr.levelno == logging.INFO and re.match(pat, lr.message):
break
else:
assert False, "Expected log message not captured"
diag.close()
pub.close()
pres.close()
await asyncio.sleep(1.0) # Let the background tasks terminate.
async def _unittest_slow_plug_and_play_allocatee(
compiled: typing.List[pyuavcan.dsdl.GeneratedPackageInfo], caplog: typing.Any
) -> None:
from pyuavcan.presentation import Presentation
from pyuavcan.application.plug_and_play import Allocatee, NodeIDAllocationData_2, ID
assert compiled
asyncio.get_running_loop().slow_callback_duration = 5.0
peers: typing.Set[MockMedia] = set()
pres_client = Presentation(CANTransport(MockMedia(peers, 64, 1), None))
pres_server = Presentation(CANTransport(MockMedia(peers, 64, 1), 123))
allocatee = Allocatee(pres_client, _uid("00112233445566778899aabbccddeeff"), 42)
pub = pres_server.make_publisher_with_fixed_subject_id(NodeIDAllocationData_2)
await pub.publish(NodeIDAllocationData_2(ID(10), unique_id=_uid("aabbccddeeff00112233445566778899"))) # Mismatch.
await asyncio.sleep(1.0)
assert allocatee.get_result() is None
with caplog.at_level(logging.CRITICAL, logger=pyuavcan.application.plug_and_play.__name__): # Bad NID.
await pub.publish(NodeIDAllocationData_2(ID(999), unique_id=_uid("00112233445566778899aabbccddeeff")))
await asyncio.sleep(1.0)
assert allocatee.get_result() is None
await pub.publish(NodeIDAllocationData_2(ID(0), unique_id=_uid("00112233445566778899aabbccddeeff"))) # Correct.
await asyncio.sleep(1.0)
assert allocatee.get_result() == 0
allocatee.close()
pub.close()
pres_client.close()
pres_server.close()
await asyncio.sleep(1.0) # Let the tasks finalize properly.
def _make_subscriber(subjects: typing.Sequence[str],
presentation: Presentation) -> Subscriber[_M]:
group = [construct_port_id_and_type(ds) for ds in subjects]
assert len(group) > 0
if len(group) == 1:
((subject_id, dtype), ) = group
return presentation.make_subscriber(dtype, subject_id)
raise NotImplementedError(
"Multi-subject subscription is not yet implemented. See https://github.com/UAVCAN/pyuavcan/issues/65"
)
async def _unittest_slow_node_tracker(generated_packages: typing.List[pyuavcan.dsdl.GeneratedPackageInfo],
caplog: typing.Any) -> None:
from . import get_transport
from pyuavcan.presentation import Presentation
from pyuavcan.application.node_tracker import NodeTracker, Entry, GetInfo, Heartbeat
assert generated_packages
p_a = Presentation(get_transport(0xA))
p_b = Presentation(get_transport(0xB))
p_c = Presentation(get_transport(0xC))
p_trk = Presentation(get_transport(None))
try:
last_update_args: typing.List[typing.Tuple[int, typing.Optional[Entry], typing.Optional[Entry]]] = []
def simple_handler(node_id: int, old: typing.Optional[Entry], new: typing.Optional[Entry]) -> None:
last_update_args.append((node_id, old, new))
def faulty_handler(_node_id: int, _old: typing.Optional[Entry], _new: typing.Optional[Entry]) -> None:
raise Exception('INTENDED EXCEPTION')
trk = NodeTracker(p_trk)
assert not trk.registry
assert pytest.approx(trk.get_info_timeout) == trk.DEFAULT_GET_INFO_TIMEOUT
assert trk.get_info_attempts == trk.DEFAULT_GET_INFO_ATTEMPTS
# Override the defaults to simplify and speed-up testing.
trk.get_info_timeout = 1.0
trk.get_info_attempts = 2
assert pytest.approx(trk.get_info_timeout) == 1.0
assert trk.get_info_attempts == 2
with caplog.at_level(logging.CRITICAL, logger=pyuavcan.application.node_tracker.__name__):
trk.add_update_handler(faulty_handler)
trk.add_update_handler(simple_handler)
trk.start()
trk.start() # Idempotency
await asyncio.sleep(1)
assert not last_update_args
assert not trk.registry
# Bring the first node online and make sure it is detected and reported.
hb_a = asyncio.create_task(_publish_heartbeat(p_a, 0xde))
await asyncio.sleep(2.5)
assert len(last_update_args) == 1
assert last_update_args[0][0] == 0xA
assert last_update_args[0][1] is None
assert last_update_args[0][2] is not None
assert last_update_args[0][2].heartbeat.uptime == 0
assert last_update_args[0][2].heartbeat.vendor_specific_status_code == 0xde
last_update_args.clear()
assert list(trk.registry.keys()) == [0xA]
assert 3 >= trk.registry[0xA].heartbeat.uptime >= 2
assert trk.registry[0xA].heartbeat.vendor_specific_status_code == 0xde
assert trk.registry[0xA].info is None
# Remove the faulty handler -- no point keeping the noise in the log.
trk.remove_update_handler(faulty_handler)
# Bring the second node online and make sure it is detected and reported.
hb_b = asyncio.create_task(_publish_heartbeat(p_b, 0xbe))
await asyncio.sleep(2.5)
assert len(last_update_args) == 1
assert last_update_args[0][0] == 0xB
assert last_update_args[0][1] is None
assert last_update_args[0][2] is not None
assert last_update_args[0][2].heartbeat.uptime == 0
assert last_update_args[0][2].heartbeat.vendor_specific_status_code == 0xbe
last_update_args.clear()
assert list(trk.registry.keys()) == [0xA, 0xB]
assert 6 >= trk.registry[0xA].heartbeat.uptime >= 4
assert trk.registry[0xA].heartbeat.vendor_specific_status_code == 0xde
assert trk.registry[0xA].info is None
assert 3 >= trk.registry[0xB].heartbeat.uptime >= 2
assert trk.registry[0xB].heartbeat.vendor_specific_status_code == 0xbe
assert trk.registry[0xB].info is None
# Enable get info servers. They will not be queried yet because the tracker node is anonymous.
_serve_get_info(p_a, 'node-A')
_serve_get_info(p_b, 'node-B')
await asyncio.sleep(2.5)
assert not last_update_args
assert list(trk.registry.keys()) == [0xA, 0xB]
assert 9 >= trk.registry[0xA].heartbeat.uptime >= 6
assert trk.registry[0xA].heartbeat.vendor_specific_status_code == 0xde
assert trk.registry[0xA].info is None
assert 6 >= trk.registry[0xB].heartbeat.uptime >= 4
assert trk.registry[0xB].heartbeat.vendor_specific_status_code == 0xbe
assert trk.registry[0xB].info is None
# Create a new tracker, this time with a valid node-ID, and make sure node info is requested.
# We are going to need a new handler for this.
num_events_a = 0
num_events_b = 0
num_events_c = 0
def validating_handler(node_id: int, old: typing.Optional[Entry], new: typing.Optional[Entry]) -> None:
nonlocal num_events_a, num_events_b, num_events_c
_logger.info('VALIDATING HANDLER %s %s %s', node_id, old, new)
if node_id == 0xA:
if num_events_a == 0: # First detection
assert old is None
assert new is not None
assert new.heartbeat.vendor_specific_status_code == 0xde
assert new.info is None
elif num_events_a == 1: # Get info received
assert old is not None
assert new is not None
assert old.heartbeat.vendor_specific_status_code == 0xde
assert new.heartbeat.vendor_specific_status_code == 0xde
assert old.info is None
assert new.info is not None
assert new.info.name.tobytes().decode() == 'node-A'
elif num_events_a == 2: # Restart detected
assert old is not None
assert new is not None
assert old.heartbeat.vendor_specific_status_code == 0xde
assert new.heartbeat.vendor_specific_status_code == 0xfe
assert old.info is not None
assert new.info is None
elif num_events_a == 3: # Get info after restart received
assert old is not None
assert new is not None
assert old.heartbeat.vendor_specific_status_code == 0xfe
assert new.heartbeat.vendor_specific_status_code == 0xfe
assert old.info is None
assert new.info is not None
assert new.info.name.tobytes().decode() == 'node-A'
elif num_events_a == 4: # Offline
assert old is not None
assert new is None
assert old.heartbeat.vendor_specific_status_code == 0xfe
assert old.info is not None
else:
assert False
num_events_a += 1
elif node_id == 0xB:
if num_events_b == 0:
assert old is None
assert new is not None
assert new.heartbeat.vendor_specific_status_code == 0xbe
assert new.info is None
elif num_events_b == 1:
assert old is not None
assert new is not None
assert old.heartbeat.vendor_specific_status_code == 0xbe
assert new.heartbeat.vendor_specific_status_code == 0xbe
assert old.info is None
assert new.info is not None
assert new.info.name.tobytes().decode() == 'node-B'
elif num_events_b == 2:
assert old is not None
assert new is None
assert old.heartbeat.vendor_specific_status_code == 0xbe
assert old.info is not None
else:
assert False
num_events_b += 1
elif node_id == 0xC:
if num_events_c == 0:
assert old is None
assert new is not None
assert new.heartbeat.vendor_specific_status_code == 0xf0
assert new.info is None
elif num_events_c == 1:
assert old is not None
assert new is None
assert old.heartbeat.vendor_specific_status_code == 0xf0
assert old.info is None
else:
assert False
num_events_c += 1
else:
assert False
trk.close()
trk.close() # Idempotency
p_trk = Presentation(get_transport(0xDD))
trk = NodeTracker(p_trk)
trk.add_update_handler(validating_handler)
trk.start()
trk.get_info_timeout = 1.0
trk.get_info_attempts = 2
assert pytest.approx(trk.get_info_timeout) == 1.0
assert trk.get_info_attempts == 2
await asyncio.sleep(2.5)
assert num_events_a == 2
assert num_events_b == 2
assert num_events_c == 0
assert list(trk.registry.keys()) == [0xA, 0xB]
assert 12 >= trk.registry[0xA].heartbeat.uptime >= 8
assert trk.registry[0xA].heartbeat.vendor_specific_status_code == 0xde
assert trk.registry[0xA].info is not None
assert trk.registry[0xA].info.name.tobytes().decode() == 'node-A'
assert 9 >= trk.registry[0xB].heartbeat.uptime >= 6
assert trk.registry[0xB].heartbeat.vendor_specific_status_code == 0xbe
assert trk.registry[0xB].info is not None
assert trk.registry[0xB].info.name.tobytes().decode() == 'node-B'
# Node B goes offline.
hb_b.cancel()
await asyncio.sleep(6)
assert num_events_a == 2
assert num_events_b == 3
assert num_events_c == 0
assert list(trk.registry.keys()) == [0xA]
assert 20 >= trk.registry[0xA].heartbeat.uptime >= 12
assert trk.registry[0xA].heartbeat.vendor_specific_status_code == 0xde
assert trk.registry[0xA].info is not None
assert trk.registry[0xA].info.name.tobytes().decode() == 'node-A'
# Node C appears online. It does not respond to GetInfo.
hb_c = asyncio.create_task(_publish_heartbeat(p_c, 0xf0))
await asyncio.sleep(6)
assert num_events_a == 2
assert num_events_b == 3
assert num_events_c == 1
assert list(trk.registry.keys()) == [0xA, 0xC]
assert 28 >= trk.registry[0xA].heartbeat.uptime >= 17
assert trk.registry[0xA].heartbeat.vendor_specific_status_code == 0xde
assert trk.registry[0xA].info is not None
assert trk.registry[0xA].info.name.tobytes().decode() == 'node-A'
assert 7 >= trk.registry[0xC].heartbeat.uptime >= 5
assert trk.registry[0xC].heartbeat.vendor_specific_status_code == 0xf0
assert trk.registry[0xC].info is None
# Node A is restarted. Node C goes offline.
hb_c.cancel()
hb_a.cancel()
hb_a = asyncio.create_task(_publish_heartbeat(p_a, 0xfe))
await asyncio.sleep(6)
assert num_events_a == 4 # Two extra events: node restart detection, then get info reception.
assert num_events_b == 3
assert num_events_c == 2
assert list(trk.registry.keys()) == [0xA]
assert 7 >= trk.registry[0xA].heartbeat.uptime >= 5
assert trk.registry[0xA].heartbeat.vendor_specific_status_code == 0xfe
assert trk.registry[0xA].info is not None
assert trk.registry[0xA].info.name.tobytes().decode() == 'node-A'
# Node A goes offline. No online nodes are left standing.
hb_a.cancel()
await asyncio.sleep(6)
assert num_events_a == 5
assert num_events_b == 3
assert num_events_c == 2
assert not trk.registry
# Finalization.
trk.close()
trk.close() # Idempotency
for c in [hb_a, hb_b, hb_c]:
c.cancel()
finally:
for p in [p_a, p_b, p_c, p_trk]:
p.close()
await asyncio.sleep(1) # Let all pending tasks finalize properly to avoid stack traces in the output.
async def _unittest_spoofer(caplog: pytest.LogCaptureFixture) -> None:
dcs_pres = Presentation(LoopbackTransport(1234))
dcs_pub_spoof = dcs_pres.make_publisher(Spoof, 1)
spoofer = Spoofer(dcs_pres.make_subscriber(Spoof, 1))
# No target transports configured -- spoofing will do nothing except incrementing the transfer-ID counter.
assert await dcs_pub_spoof.publish(
Spoof(
timeout=uavcan.si.unit.duration.Scalar_1_0(1.0),
priority=org_uavcan_yukon.io.transfer.Priority_1_0(3),
session=org_uavcan_yukon.io.transfer.Session_0_1(
subject=org_uavcan_yukon.io.transfer.SubjectSession_0_1(
subject_id=uavcan.node.port.SubjectID_1_0(6666),
source=[uavcan.node.ID_1_0(1234)])),
transfer_id=[],
iface_id=[],
payload=org_uavcan_yukon.io.transfer.Payload_1_0(b"Hello world!"),
))
await asyncio.sleep(0.5)
# Validate the transfer-ID map.
assert len(spoofer._transfer_id_map) == 1
assert list(spoofer._transfer_id_map.keys())[0].source_node_id == 1234
assert list(spoofer._transfer_id_map.values())[0]._value == 1
# Configure transports.
cap_a: typing.List[pyuavcan.transport.Capture] = []
cap_b: typing.List[pyuavcan.transport.Capture] = []
target_tr_a = LoopbackTransport(None)
target_tr_b = LoopbackTransport(None)
target_tr_a.begin_capture(cap_a.append)
target_tr_b.begin_capture(cap_b.append)
spoofer.add_iface(111, target_tr_a)
spoofer.add_iface(222, target_tr_b)
# Spoof on both, successfully.
spoof = Spoof(
timeout=uavcan.si.unit.duration.Scalar_1_0(1.0),
priority=org_uavcan_yukon.io.transfer.Priority_1_0(3),
session=org_uavcan_yukon.io.transfer.Session_0_1(
subject=org_uavcan_yukon.io.transfer.SubjectSession_0_1(
subject_id=uavcan.node.port.SubjectID_1_0(6666),
source=[uavcan.node.ID_1_0(1234)])),
transfer_id=[9876543210], # This transfer will not touch the TID map.
iface_id=[], # All ifaces.
payload=org_uavcan_yukon.io.transfer.Payload_1_0(b"abcd"),
)
assert await dcs_pub_spoof.publish(spoof)
await asyncio.sleep(0.5)
assert len(cap_a) == len(cap_b)
(cap, ) = cap_a
cap_a.clear()
cap_b.clear()
assert isinstance(cap, LoopbackCapture)
assert cap.transfer.metadata.transfer_id == 9876543210
assert len(spoofer._transfer_id_map) == 1 # New entry was not created.
assert spoofer.status == {
111:
IfaceStatus(num_bytes=4,
num_errors=0,
num_timeouts=0,
num_transfers=1,
backlog=0,
backlog_peak=0),
222:
IfaceStatus(num_bytes=4,
num_errors=0,
num_timeouts=0,
num_transfers=1,
backlog=0,
backlog_peak=0),
}
# Make one time out, the other raise an error, third one is closed.
target_tr_a.spoof_result = False
target_tr_b.spoof_result = RuntimeError("Intended exception")
target_tr_c = LoopbackTransport(None)
target_tr_c.close()
spoofer.add_iface(0, target_tr_c)
with caplog.at_level(logging.CRITICAL):
assert await dcs_pub_spoof.publish(spoof)
await asyncio.sleep(2.0)
assert not cap_a
assert not cap_b
old_status = spoofer.status
assert old_status == {
0:
IfaceStatus(num_bytes=0,
num_errors=1,
num_timeouts=0,
num_transfers=0,
backlog=0,
backlog_peak=0),
111:
IfaceStatus(num_bytes=4,
num_errors=0,
num_timeouts=1,
num_transfers=1,
backlog=0,
backlog_peak=0),
222:
IfaceStatus(num_bytes=4,
num_errors=1,
num_timeouts=0,
num_transfers=1,
backlog=0,
backlog_peak=0),
}
# Force only one iface out of three. Check that the backlog counter goes up.
spoof.iface_id = [0]
assert await dcs_pub_spoof.publish(spoof)
assert await dcs_pub_spoof.publish(spoof)
assert await dcs_pub_spoof.publish(spoof)
await asyncio.sleep(2.0)
assert spoofer.status[0].backlog > 0
assert spoofer.status[0].backlog_peak > 0
assert spoofer.status[111] == old_status[111]
assert spoofer.status[222] == old_status[222]
# Finalize.
spoofer.close()
target_tr_a.close()
target_tr_b.close()
target_tr_c.close()
dcs_pres.close()
await asyncio.sleep(1.0)
async def _unittest_slow_node(
compiled: typing.List[pyuavcan.dsdl.GeneratedPackageInfo]) -> None:
from pyuavcan.application import make_node, make_registry
import uavcan.primitive
from uavcan.node import Version_1_0, Heartbeat_1_0, GetInfo_1_0, Mode_1_0, Health_1_0
asyncio.get_running_loop().slow_callback_duration = 3.0
assert compiled
remote_pres = Presentation(UDPTransport("127.1.1.1"))
remote_hb_sub = remote_pres.make_subscriber_with_fixed_subject_id(
Heartbeat_1_0)
remote_info_cln = remote_pres.make_client_with_fixed_service_id(
GetInfo_1_0, 258)
trans = RedundantTransport()
try:
info = GetInfo_1_0.Response(
protocol_version=Version_1_0(
*pyuavcan.UAVCAN_SPECIFICATION_VERSION),
software_version=Version_1_0(*pyuavcan.__version_info__[:2]),
name="org.uavcan.pyuavcan.test.node",
)
node = make_node(info,
make_registry(None, typing.cast(Dict[str, bytes],
{})),
transport=trans)
print("node:", node)
assert node.presentation.transport is trans
node.start()
node.start() # Idempotency
# Check port instantiation API for non-fixed-port-ID types.
assert "uavcan.pub.optional.id" not in node.registry # Nothing yet.
with pytest.raises(KeyError, match=r".*uavcan\.pub\.optional\.id.*"):
node.make_publisher(uavcan.primitive.Empty_1_0, "optional")
assert 0xFFFF == int(
node.registry["uavcan.pub.optional.id"]) # Created automatically!
with pytest.raises(TypeError):
node.make_publisher(uavcan.primitive.Empty_1_0)
# Same but for fixed port-ID types.
assert "uavcan.pub.atypical_heartbeat.id" not in node.registry # Nothing yet.
port = node.make_publisher(uavcan.node.Heartbeat_1_0,
"atypical_heartbeat")
assert port.port_id == pyuavcan.dsdl.get_model(
uavcan.node.Heartbeat_1_0).fixed_port_id
port.close()
assert 0xFFFF == int(node.registry["uavcan.pub.atypical_heartbeat.id"]
) # Created automatically!
node.registry[
"uavcan.pub.atypical_heartbeat.id"] = 111 # Override the default.
port = node.make_publisher(uavcan.node.Heartbeat_1_0,
"atypical_heartbeat")
assert port.port_id == 111
port.close()
node.heartbeat_publisher.priority = pyuavcan.transport.Priority.FAST
node.heartbeat_publisher.period = 0.5
node.heartbeat_publisher.mode = Mode_1_0.MAINTENANCE # type: ignore
node.heartbeat_publisher.health = Health_1_0.ADVISORY # type: ignore
node.heartbeat_publisher.vendor_specific_status_code = 93
with pytest.raises(ValueError):
node.heartbeat_publisher.period = 99.0
with pytest.raises(ValueError):
node.heartbeat_publisher.vendor_specific_status_code = -299
assert node.heartbeat_publisher.priority == pyuavcan.transport.Priority.FAST
assert node.heartbeat_publisher.period == pytest.approx(0.5)
assert node.heartbeat_publisher.mode == Mode_1_0.MAINTENANCE
assert node.heartbeat_publisher.health == Health_1_0.ADVISORY
assert node.heartbeat_publisher.vendor_specific_status_code == 93
assert None is await remote_hb_sub.receive_for(2.0)
assert trans.local_node_id is None
trans.attach_inferior(UDPTransport("127.1.1.2"))
assert trans.local_node_id == 258
for _ in range(2):
hb_transfer = await remote_hb_sub.receive_for(2.0)
assert hb_transfer is not None
hb, transfer = hb_transfer
assert transfer.source_node_id == 258
assert transfer.priority == pyuavcan.transport.Priority.FAST
assert 1 <= hb.uptime <= 9
assert hb.mode.value == Mode_1_0.MAINTENANCE
assert hb.health.value == Health_1_0.ADVISORY
assert hb.vendor_specific_status_code == 93
info_transfer = await remote_info_cln.call(GetInfo_1_0.Request())
assert info_transfer is not None
resp, transfer = info_transfer
assert transfer.source_node_id == 258
assert isinstance(resp, GetInfo_1_0.Response)
assert resp.name.tobytes().decode() == "org.uavcan.pyuavcan.test.node"
assert resp.protocol_version.major == pyuavcan.UAVCAN_SPECIFICATION_VERSION[
0]
assert resp.software_version.major == pyuavcan.__version_info__[0]
trans.detach_inferior(trans.inferiors[0])
assert trans.local_node_id is None
assert None is await remote_hb_sub.receive_for(2.0)
node.close()
node.close() # Idempotency
finally:
trans.close()
remote_pres.close()
await asyncio.sleep(1.0) # Let the background tasks terminate.
def _uid(as_hex: str) -> bytes:
out = bytes.fromhex(as_hex)
assert len(out) == 16
return out
_TABLE = pathlib.Path('allocation_table.sqlite.tmp')
if __name__ == '__main__':
media = pyuavcan.transport.can.media.socketcan.SocketCANMedia('can0', mtu=64)
#transport_client = pyuavcan.transport.can.CANTransport(media, local_node_id=None)
transport_server = pyuavcan.transport.can.CANTransport(media, local_node_id=123)
#pres_client = Presentation(transport_client)
pres_server = Presentation(transport_server)
allocator = CentralizedAllocator(pres_server, _uid('deadbeefdeadbeefdeadbeefdeadbeef'), _TABLE)
allocator.start()
app_tasks = asyncio.Task.all_tasks()
async def list_tasks_periodically() -> None:
"""Print active tasks periodically for demo purposes."""
import re
def repr_task(t: asyncio.Task) -> str:
try:
out, = re.findall(r'^<([^<]+<[^>]+>)', str(t))
except ValueError:
out = str(t)
async def _unittest_slow_plug_and_play_centralized(
generated_packages: typing.List[pyuavcan.dsdl.GeneratedPackageInfo],
mtu: int) -> None:
from pyuavcan.application.plug_and_play import CentralizedAllocator, Allocatee
assert generated_packages
asyncio.get_running_loop().slow_callback_duration = 5.0
peers: typing.Set[MockMedia] = set()
pres_client = Presentation(CANTransport(MockMedia(peers, mtu, 1), None))
pres_server = Presentation(CANTransport(MockMedia(peers, mtu, 1), 123))
cln_a = Allocatee(pres_client, _uid("00112233445566778899aabbccddeeff"),
42)
assert cln_a.get_result() is None
cln_a.start()
await asyncio.sleep(2.0)
assert cln_a.get_result() is None # Nope, no response.
try:
_TABLE.unlink()
except FileNotFoundError:
pass
with pytest.raises(ValueError, match=".*anonymous.*"):
CentralizedAllocator(pres_client,
_uid("deadbeefdeadbeefdeadbeefdeadbeef"), _TABLE)
with pytest.raises(ValueError):
CentralizedAllocator(pres_client, b"123", _TABLE)
allocator = CentralizedAllocator(pres_server,
_uid("deadbeefdeadbeefdeadbeefdeadbeef"),
_TABLE)
allocator.start()
allocator.register_node(41, None)
allocator.register_node(
41, _uid("00000000000000000000000000000001")) # Overwrites
allocator.register_node(42, _uid("00000000000000000000000000000002"))
allocator.register_node(42, None) # Does not overwrite
allocator.register_node(43, _uid("0000000000000000000000000000000F"))
allocator.register_node(
43, _uid("00000000000000000000000000000003")) # Overwrites
allocator.register_node(43, None) # Does not overwrite
use_v2 = mtu > cln_a._MTU_THRESHOLD # pylint: disable=protected-access
await asyncio.sleep(2.0)
assert cln_a.get_result() == (44 if use_v2 else 125)
# Another request.
cln_b = Allocatee(pres_client, _uid("aabbccddeeff00112233445566778899"))
assert cln_b.get_result() is None
cln_b.start()
await asyncio.sleep(2.0)
assert cln_b.get_result() == (125 if use_v2 else 124)
# Re-request A and make sure we get the same response.
cln_a = Allocatee(pres_client, _uid("00112233445566778899aabbccddeeff"),
42)
assert cln_a.get_result() is None
cln_a.start()
await asyncio.sleep(2.0)
assert cln_a.get_result() == (44 if use_v2 else 125)
# C should be served from the manually added entries above.
cln_c = Allocatee(pres_client, _uid("00000000000000000000000000000003"))
assert cln_c.get_result() is None
cln_c.start()
await asyncio.sleep(2.0)
assert cln_c.get_result() == 43
# This one requires no allocation because the transport is not anonymous.
cln_d = Allocatee(pres_server, _uid("00000000000000000000000000000009"),
100)
assert cln_d.get_result() == 123
cln_d.start()
await asyncio.sleep(2.0)
assert cln_d.get_result() == 123 # No change.
# More test coverage needed.
# Finalization.
cln_a.close()
cln_b.close()
cln_c.close()
cln_d.close()
allocator.close()
pres_client.close()
pres_server.close()
await asyncio.sleep(1.0) # Let the tasks finalize properly.
def subscribe(
purser: yakut.Purser,
subject: typing.Tuple[str, ...],
with_metadata: bool,
count: typing.Optional[int],
) -> None:
"""
Subscribe to specified subjects and print messages into stdout.
This command does not instantiate a local node and does not disturb the network in any way,
so many instances can be cheaply executed concurrently.
It is recommended to use anonymous transport (i.e., without a node-ID).
The arguments are a list of message data type names prepended with the subject-ID;
the subject-ID may be omitted if the data type defines a fixed one:
\b
[SUBJECT_ID.]TYPE_NAME.MAJOR.MINOR
If multiple subjects are specified, a synchronous subscription will be used.
It is useful for subscribing to a group of coupled subjects like lockstep sensor feeds,
but it will not work for subjects that are temporally unrelated or published at different rates.
Each object emitted into stdout is a key-value mapping where the number of elements equals the number
of subjects the command is asked to subscribe to;
the keys are subject-IDs and values are the received message objects.
In data type names forward or backward slashes can be used instead of ".";
version numbers can be also separated using underscores.
This is done to allow the user to rely on filesystem autocompletion when typing the command.
Examples:
\b
yakut sub 33.uavcan.si.unit.angle.Scalar.1.0 --no-metadata
"""
_logger.debug("subject=%r, with_metadata=%r, count=%r", subject,
with_metadata, count)
if not subject:
_logger.info("Nothing to do because no subjects are specified")
return
if count is not None and count <= 0:
_logger.info("Nothing to do because count=%s", count)
return
count = count if count is not None else sys.maxsize
formatter = purser.make_formatter()
transport = purser.get_transport()
if transport.local_node_id is not None:
_logger.info(
"It is recommended to use an anonymous transport with this command."
)
with contextlib.closing(Presentation(transport)) as presentation:
subscriber = _make_subscriber(subject, presentation)
try:
_run(subscriber,
formatter,
with_metadata=with_metadata,
count=count)
finally:
if _logger.isEnabledFor(logging.INFO):
_logger.info("%s", presentation.transport.sample_statistics())
_logger.info("%s", subscriber.sample_statistics())
async def _unittest_slow_node(
generated_packages: typing.List[pyuavcan.dsdl.GeneratedPackageInfo]
) -> None:
from pyuavcan.application import Node
from uavcan.node import Version_1_0, Heartbeat_1_0, GetInfo_1_0, Mode_1_0, Health_1_0
asyncio.get_running_loop().slow_callback_duration = 3.0
assert generated_packages
remote_pres = Presentation(UDPTransport("127.1.1.1"))
remote_hb_sub = remote_pres.make_subscriber_with_fixed_subject_id(
Heartbeat_1_0)
remote_info_cln = remote_pres.make_client_with_fixed_service_id(
GetInfo_1_0, 258)
trans = RedundantTransport()
pres = Presentation(trans)
try:
info = GetInfo_1_0.Response(
protocol_version=Version_1_0(
*pyuavcan.UAVCAN_SPECIFICATION_VERSION),
software_version=Version_1_0(*pyuavcan.__version_info__[:2]),
name="org.uavcan.pyuavcan.test.node",
)
node = Node(pres, info, with_diagnostic_subscriber=True)
print("node:", node)
assert node.presentation is pres
node.start()
node.start() # Idempotency
node.heartbeat_publisher.priority = pyuavcan.transport.Priority.FAST
node.heartbeat_publisher.period = 0.5
node.heartbeat_publisher.mode = Mode_1_0.MAINTENANCE # type: ignore
node.heartbeat_publisher.health = Health_1_0.ADVISORY # type: ignore
node.heartbeat_publisher.vendor_specific_status_code = 93
with pytest.raises(ValueError):
node.heartbeat_publisher.period = 99.0
with pytest.raises(ValueError):
node.heartbeat_publisher.vendor_specific_status_code = -299
assert node.heartbeat_publisher.priority == pyuavcan.transport.Priority.FAST
assert node.heartbeat_publisher.period == pytest.approx(0.5)
assert node.heartbeat_publisher.mode == Mode_1_0.MAINTENANCE
assert node.heartbeat_publisher.health == Health_1_0.ADVISORY
assert node.heartbeat_publisher.vendor_specific_status_code == 93
assert None is await remote_hb_sub.receive_for(2.0)
assert trans.local_node_id is None
trans.attach_inferior(UDPTransport("127.1.1.2"))
assert trans.local_node_id == 258
for _ in range(2):
hb_transfer = await remote_hb_sub.receive_for(2.0)
assert hb_transfer is not None
hb, transfer = hb_transfer
assert transfer.source_node_id == 258
assert transfer.priority == pyuavcan.transport.Priority.FAST
assert 1 <= hb.uptime <= 9
assert hb.mode.value == Mode_1_0.MAINTENANCE
assert hb.health.value == Health_1_0.ADVISORY
assert hb.vendor_specific_status_code == 93
info_transfer = await remote_info_cln.call(GetInfo_1_0.Request())
assert info_transfer is not None
resp, transfer = info_transfer
assert transfer.source_node_id == 258
assert isinstance(resp, GetInfo_1_0.Response)
assert resp.name.tobytes().decode() == "org.uavcan.pyuavcan.test.node"
assert resp.protocol_version.major == pyuavcan.UAVCAN_SPECIFICATION_VERSION[
0]
assert resp.software_version.major == pyuavcan.__version_info__[0]
trans.detach_inferior(trans.inferiors[0])
assert trans.local_node_id is None
assert None is await remote_hb_sub.receive_for(2.0)
node.close()
node.close() # Idempotency
finally:
pres.close()
remote_pres.close()
await asyncio.sleep(1.0) # Let the background tasks terminate.
