Micro-XRCE-DDS-Client/examples/SubscribeBigHelloWorld

SubscribeBigHelloWorld example

This example will show how to receive big data (up to 64 kB) to the DDS World creating a client publisher. In order to compile this example, the following profiles should be enabled:

• UCLIENT_PROFILE_UDP

Usage

1. Run an agent in a certain port, for example, 2018: MicroXRCEAgent udp4 -p 2018.
2. Run the PublisherBigHelloWorld example or some publisher that can send the BigHelloWorld topic.
3. Run the SubscriberBigHelloWorld example. The example expects first and second argument to be IP address and port where the Micro XRCE-DDS Agent is running. It can also be parameterized with the amount of times that the topic will be listened. If no number is given, the publisher will publish indefinitely.

Considerations

• Notice that BUFFER_SIZE shall be big enough to store the whole message.
• Notice that STREAM_HISTORY shall power of two.