export declare const START_TIME_TOLERANCE_MS = 5000;
export declare function procStatFields(path: string): string[] | undefined;
export declare function processStartTimeMs(pid: number): number | undefined;
/**
 * Lenient fingerprint comparison: unknown data (no recorded start time, an
 * unparsable record, or an unresolvable actual start time) counts as a match.
 * Use for non-destructive liveness checks where "possibly alive" is the safe
 * answer (pidfile checks, deciding not to take over a lease).
 */
export declare function sameProcessStart(recorded: string | number | undefined, actualMs: number | undefined, toleranceMs?: number): boolean;
/**
 * Strict fingerprint comparison for destructive paths (signalling processes):
 * true only when both the recorded and actual start times resolve and match
 * within tolerance. Unverifiable identity fails closed as a mismatch.
 */
export declare function verifiedProcessStart(recorded: string | number | undefined, actualMs: number | undefined, toleranceMs?: number): boolean;