/**
 * Lock Service - File-based concurrency control
 * Extracted from FileProcessingService to be reusable across the MCP
 */
export interface LockResult {
    acquired: boolean;
    message: string;
}
export declare class LockService {
    private logger;
    constructor(loggerName?: string);
    /**
     * Generate lock file path for an operation
     */
    private getLockFilePath;
    /**
     * Acquire a lock for an operation
     */
    acquireLock(operationKey: string): Promise<LockResult>;
    /**
     * Release a lock for an operation
     */
    releaseLock(operationKey: string): Promise<void>;
    /**
     * Check if a lock exists for an operation
     */
    isLocked(operationKey: string): Promise<boolean>;
    /**
     * Get lock information for an operation
     */
    getLockInfo(operationKey: string): Promise<{
        locked: boolean;
        operation?: string;
        pid?: number;
        startTime?: string;
        ageMinutes?: number;
    }>;
}
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