ros2doctor.verb.hello module

class ros2doctor.verb.hello.HelloMulticastUDPReceiver(summary_table, group='225.0.0.1', port=49150, timeout=None)

Bases: object

Receive ‘hello’ messages over a multicast UDP socket.

recv()

shutdown()

class ros2doctor.verb.hello.HelloMulticastUDPSender(summary_table, group='225.0.0.1', port=49150, ttl=None)

Bases: object

Send ‘hello’ messages over a multicast UDP socket.

send()

shutdown()

class ros2doctor.verb.hello.HelloPublisher(node, topic, summary_table, *, qos=rclpy.qos.qos_profile_system_default)

Bases: object

Publish ‘hello’ messages over an std_msgs/msg/String topic.

destroy()

publish()

class ros2doctor.verb.hello.HelloSubscriber(node, topic, summary_table, *, qos=rclpy.qos.qos_profile_system_default)

Bases: object

Subscribe to ‘hello’ messages over an std_msgs/msg/String topic.

destroy()

class ros2doctor.verb.hello.HelloVerb

Bases: VerbExtension

Check network connectivity between multiple hosts.

This command can be invoked on multiple hosts to confirm that they can talk to each other by using talker/listener, multicast send/receive to check topic discovering and UDP communication. This command outputs a summary table of msgs statistics at a custom period(s).

add_arguments(parser, cli_name)

main(*, args, summary_table=None)

class ros2doctor.verb.hello.SummaryTable

Bases: object

Summarize number of msgs published/sent and subscribed/received.

format_print_summary(topic, print_period, *, group='225.0.0.1', port=49150)

Print content in a table format.

increment_pub()

Increment published msg count.

increment_receive(hostname)

Increment multicast-received msg count from different host(s).

increment_send()

Increment multicast-sent msg count.

increment_sub(hostname)

Increment subscribed msg count from different host(s).

reset()

Reset summary table to empty each time after printing.

ros2doctor.verb.hello.positive(type_)

ros2doctor.verb.hello.positive_float(string)

ros2doctor.verb.hello.positive_int(string)