Event#
Event Communication Model#
A messaging pattern for coordinating execution between participants. The
Event messaging pattern is not intended for sharing payload data, but
rather communicating to other participants that there is work to do.
Mechanism#
Events over Native Sleep/Wake-up Mechanisms#
The event messaging pattern abstracts over sleep and wake-up mechanisms of the platform. Listeners can put their thread into a sleep state and be woken up by notifiers on the service.
A single participant can handle multiple listeners
using a Waitset, which allows the
participant to wait on several event sources simultaneously.
An EventId is provided with each notification, either assigned automatically
or specified by the notifier, to facilitate event handling by the receiving
participants.
Further Reading#
Understand how Event services fit into the bigger picture of execution control
with iceoryx2.
See how to set up a basic Event service.
See how to handle multiple Event services in a single user thread.