In the world of iceoryx2, communication is at the core of everything. To facilitate seamless communication, we always begin by opening or creating a service, the fundamental building block of an iceoryx2 application. Services serve as the conduit through which different parts of your application interact.
The type of service you create is defined by a messaging pattern, which dictates how data flows between participants. iceoryx2 supports various messaging patterns, including:
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Publish-Subscribe: In this pattern, a publisher sends a continuous stream of data to one or more subscribers, enabling real-time data dissemination.
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Request-Response: (planned) This pattern enables clients to send requests to a server, which responds with the requested data or action, making it suitable for interactive, transactional communication.
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Pipeline: (planned) Borrowed from the Unix command line, this pattern involves a data source that produces data and transfers ownership to a sink, where it can be modified or processed in a pipeline-like fashion.
The service acts as a factory, creating service participants, often called "ports." These ports establish communication links between different components of your application. Each service can be customized with specific settings to meet your application's requirements.
Within the service builder, you can configure various service-specific quality of service parameters, ensuring that your communication behaves precisely as you intend. The service port factory allows you to fine-tune the settings and behavior of individual ports, giving you precise control over how they interact and exchange data.
| Name | Description |
|---|---|
| complex data types | Send zero-copy compatible versions of Vec and String. Introduces PlacementDefault trait for large data types to perform an in place initialization where otherwise a stack overflow would be encountered. |
| discovery | List all available services in a system. |
| docker | Communicate between different docker containers and the host. |
| event | Push notifications - send event signals to wakeup processes that are waiting for them. |
| publish subscribe | Communication between multiple processes with a publish subscribe messaging pattern. |
| publish subscribe dynamic data | Communication between multiple processes with a publish subscribe messaging pattern and payload data that has a dynamic size. |
| service attributes | Creates a service with custom attributes that are available to every endpoint. If the attributes are not compatible the service will not open. |