/**
 * PID Lock Files
 *
 * File-based locks for exclusive operations that include the PID of the
 * process that holds the lock. Stale locks from crashed processes can be
 * detected (PID no longer running) and automatically cleaned.
 *
 * Lock files are stored in ~/.pluginator/recovery/locks/.
 *
 * @since v2.7.34
 */
/**
 * Lock file content
 */
interface LockInfo {
    pid: number;
    operation: string;
    acquiredAt: string;
    hostname: string;
}
/**
 * Acquire a PID-based file lock for an operation.
 * Returns a release function, or throws if the lock is held by another running process.
 */
export declare function acquirePidLock(operation: string): {
    release: () => void;
};
/**
 * List all stale locks (from crashed processes)
 */
export declare function listStaleLocks(): Array<{
    operation: string;
    info: LockInfo;
}>;
/**
 * Clean all stale locks
 */
export declare function cleanStaleLocks(): number;
export {};
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