Message Bus

The live event bus provides in-process routing for market data, execution reports, and system messages. It is implemented in live/event_bus.h.

Bus Diagram

flowchart TB
  A[Broker Adapter] --> B[Event Bus]
  B --> C[Live Engine]
  B --> D[Subscribers]
  D --> E[Dashboards / Alerts]

Topics

• MarketData
• ExecutionReport
• PositionUpdate
• AccountUpdate
• System

Usage

• Publishers send LiveMessage objects to the bus.
• Subscribers register callbacks per topic.

The event bus is used by the live engine and can be extended with external message queues via the MQ adapter.