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Event Manager Component
The EventManager class enables anonymous publish/subscribe interactions
between different software components and contexts in the system. It provides a
singleton class which manages the registry of publishers and subscribers in the
system and provides loose coupling between them. To subscribe to events/data, a
component must register itself with the manager by calling add_subscriber() -
which will register a callback function associated with that component for the
event/topic provided. All callback functions for a given topic/event are called
from the same thread/context - a thread that is started and managed by the
EventManager. As noted in a few places, it is recommended to use a
(de-)serialization library such as espp::serialization / alpaca for transforming
data structures to/from std::vector<uint8_t> for publishing/subscribing.
Example
The example shows some basic usage for the EventManager which
allows asynchronous communications between multiple tasks following the
anonymous pub/sub interaction pattern - supporting one to one, one to many, many
to one, and many to many data and event dissemination.
Links
Supports all targets
Maintainer
- William Emfinger <waemfinger@gmail.com>
License: MIT
idf.py add-dependency "espp/event_manager^0.21.0"
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