import type { ServiceMigrationBackup } from "./service-migration-types.js";
export interface ServiceMigrationTargetFile {
    path: string;
    bytes: Buffer;
    mode: number;
}
/**
 * 可信服务协调器须持有服务级锁，并在调用前持久化迁移意图及备份。
 * 多文件变更不是整体原子事务；部分完成可通过 canRestore/restore 对账。
 * 同用户恶意进程可在最后核验与 rename/unlink 间竞争，不属于进程隔离承诺。
 */
export declare class ServiceMigrationFiles {
    private readonly entries;
    constructor(backup: ServiceMigrationBackup, targets: ServiceMigrationTargetFile[], 
    /** 从持久化旧工件契约派生，不能使用临时客户端路径。省略时恢复原文件。 */
    rollback?: ServiceMigrationTargetFile[]);
    matchesOriginal(): boolean;
    matchesTarget(): boolean;
    matchesRestored(): boolean;
    apply(): void;
    canRestore(): boolean;
    restore(): void;
    private restorable;
}
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