The eProsima Fast DDS Request-Reply example demonstrates how to implement a service-oriented architecture using the Request-Reply communication pattern in the context of eProsima’s Fast DDS (Data Distribution Service). This example showcases how to set up a multi-server and multi-client environment where multiple server instances can handle requests from clients and provide responses.
Key Features of the Example:
Service-Oriented Architecture: The example illustrates how to design a system where clients request services from servers, which reply with results.
Multi-Server Multi-Client Setup: It allows for redundancy, meaning that multiple server instances can run simultaneously, increasing reliability and load distribution.
Calculator Operation: Clients send requests for a specific “calculator” operation (e.g., addition, subtraction), and they will exit once they receive a response from any available server.
RPC-like Communication: The communication is modeled after Remote Procedure Calls (RPCs), using two related topics — one for sending requests and another for receiving replies.
Data Flow:
- A client sends a request via the request topic.
- One or more servers listen on this topic, process the request, and respond via the reply topic.
- Clients wait for responses and can terminate as soon as they receive an answer from any server.
This structure not only showcases Fast DDS capabilities but also provides insights into effective ways to configure distributed systems using DDS technology.
Sections in Documentation
Run the Example: Instructions on how to compile and execute the example code.
XML Profile Playground: A section likely dedicated to experimenting with different XML configurations that define QoS settings for DDS communications.
Overall, this example serves as an educational tool for developers looking to leverage Fast DDS for building scalable and reliable applications that require efficient data exchange across networked services.
内容由零声教学AI助手提供，问题来源于学员提问
