Here is a list of all files with brief descriptions:

[detail level 1234]

core
src
impl
Delegate.h	Implementation details for multi-signature Delegate
net
Endpoint.h	Network endpoint definitions for TCP and UDP connections
Aggregator.h	Order book price level aggregator
Constants.h	Common constants and conversion utilities
Delegate.h	Multi-signature type-safe delegate implementation
Event.h	Thread synchronization event primitives
HRClock.h	High-resolution clock for precise time measurements
Declares.h	Platform-specific API export/import declarations
docs
nasdaq
common
Types.h	Common types and definitions for NASDAQ protocols
itch50
impl
Instrument.h
Instrument.h	ITCH 5.0 Instrument and Order Book Management
Messages.h
Session.h	ITCH 5.0 Market Data Session implementation
SessionHandlers.h
moldudp64
Messages.h	MoldUDP64 Protocol Message Definitions
Packet.h	MoldUDP64 Packet Parser
Sequencer.h	MoldUDP64 Message Sequencer
Session.h	MoldUDP64 Session Management
soupbintcp
Messages.h	SoupBinTCP Protocol Message Definitions
Settings.h	SoupBinTCP Session settings