Lisp Events

Collaboration diagram for Lisp Events:

Namespaces
namespace	uniot
	Contains all classes and functions related to the Uniot Core.
namespace	uniot::events
namespace	uniot::events::lisp

Detailed Description

This file defines the event channels, topics, and messages used for bi-directional communication between the embedded Lisp interpreter and the host application. These events enable seamless integration of Lisp scripting capabilities with the broader Uniot system.

The event system uses FOURCC (Four Character Code) identifiers for efficient event routing and minimal memory footprint. Lisp events are organized into:

• Channels: Data transmission pathways for different types of output
• Topics: Event categories for different communication patterns
• Messages: Specific event types within topics

Communication flow:

• Output channels: Lisp → Application (stdout, logs, errors)
• Event channels: Bidirectional application ↔ Lisp event exchange
• Request topics: Lisp can request application services
• Event topics: Real-time event propagation between systems

Example usage:

// Send Lisp output to application
eventEmitter.sendDataToChannel(events::lisp::Channel::OUT_LISP,
                              Bytes(outputString));
 
// Emit Lisp error event
eventEmitter.emitEvent(events::lisp::Topic::OUT_LISP_MSG,
                      events::lisp::Msg::OUT_MSG_ERROR);
 
// Forward application event to Lisp
eventEmitter.sendDataToChannel(events::lisp::Channel::IN_EVENT,
                              Bytes(eventData));