import { isPidAlive } from '../core/canvas/pid.js';
export { isPidAlive };
/** Absolute path to crtrd's pidfile. `CRTR_PIDFILE` overrides for tests. */
export declare function pidfilePath(): string;
/** Read the pid stored in the pidfile, or null if absent / malformed. */
export declare function readPidfile(): number | null;
/** True when a crtrd process is already running (pidfile exists + pid alive). */
export declare function isDaemonRunning(): boolean;