Main Subsystem — Technical Summary

Overview

The main subsystem is the central orchestration layer of stellar-core. It defines the Application interface and its concrete ApplicationImpl, which owns all other subsystem managers and coordinates the application lifecycle: construction, initialization, startup, the main event loop, graceful shutdown, and thread management. It also provides configuration parsing (Config), persistent state management (PersistentState), HTTP command handling (CommandHandler), query serving (QueryServer), CLI entry point and command routing (CommandLine, main.cpp), and various utilities (XDR dumping, diagnostics, settings upgrade helpers, maintenance).

Key Files