event

Event

This example offers a practical demonstration of inter-process event signaling in iceoryx2. It showcases how one process can signal an event to another process, allowing for efficient communication.

In this scenario, the 'listener' process waits for incoming events. When an event arrives, it promptly awakens and reports the [EventId] of the received event. On the other end, the 'notifier' process periodically sends notifications with an incrementing EventId every second.

How to Build

Before proceeding, a virtual environment with all dependencies needs to be created. You can find the detailed instructions in the Python Examples Readme.

poetry --project iceoryx2-ffi/python install

Then, the iceoryx2 python bindings can be built and installed into the virtual environment:

poetry --project iceoryx2-ffi/python run maturin develop --manifest-path iceoryx2-ffi/python/Cargo.toml --target-dir target/ff/python

How to Run

To see this in action, open two separate terminals and run the following commands:

Terminal 1

poetry --project iceoryx2-ffi/python run python examples/python/event/listener.py

Terminal 2

poetry --project iceoryx2-ffi/python run python examples/python/event/notifier.py

Feel free to run multiple listeners or notifiers concurrently to observe how iceoryx2 efficiently handles event signaling across processes.

Tip

You may hit the maximum supported number of ports when too many listener or notifier processes run. Take a look at the iceoryx2 config to set the limits globally or at the API of the Service builder to set them for a single service.