Method stop

src/mcp/daemon.ts:318–352

Graceful shutdown: close all sessions, the engine, and clean up the lock.

(reason: string = 'stop')

  /** Graceful shutdown: close all sessions, the engine, and clean up the lock. */
  async stop(reason: string = 'stop'): Promise<void> {
    if (this.stopping) return;
    this.stopping = true;
    if (this.idleTimer) {
      clearTimeout(this.idleTimer);
      this.idleTimer = null;
    }
    if (this.maxIdleTimer) {
      clearInterval(this.maxIdleTimer);
      this.maxIdleTimer = null;
    }
    if (this.clientSweepTimer) {
      clearInterval(this.clientSweepTimer);
      this.clientSweepTimer = null;
    }
    process.stderr.write(`[CodeGraph daemon] Shutting down (${reason}; clients=${this.clients.size}).\n`);
    for (const session of [...this.clients]) {
      try { session.stop(); } catch { /* best-effort */ }
    }
    this.clients.clear();
    if (this.server) {
      await new Promise<void>((resolve) => this.server!.close(() => resolve()));
      this.server = null;
    }
    this.engine.stop();
    this.cleanupLockfile();
    deregisterDaemon(this.projectRoot);
    if (process.platform !== 'win32') {
      try { fs.unlinkSync(this.socketPath); } catch { /* may already be gone */ }
    }
    // POSIX exits here; Windows drains first (engine.stop() above began closing
    // the file watcher, and exiting mid-teardown aborts the process). See
    // finalizeDaemonExit / DAEMON_SHUTDOWN_BACKSTOP_MS.
    finalizeDaemonExit(process.platform, (code) => process.exit(code));
  }

  private handleConnection(socket: net.Socket): void {
    // Hello first so the proxy can verify versions before piping any