import { type ServiceScope } from "./service-definition.js";
import type { ServiceHost } from "./service-host.js";
import type { ServicePlatform, ServicePlatformState } from "./service-platform.js";
export interface SystemdServicePlatformOptions {
    /** 仅接收已检查的 /sys/fs/cgroup/.../cgroup.events，测试替换不扩大生产读取权限。 */
    readFile?(file: string): Promise<string | null>;
    now?(): number;
    sleep?(milliseconds: number): Promise<void>;
    stopTimeoutMs?: number;
    /** 优雅停止超期后，对已验证固定 unit 的 cgroup 执行一次兜底强制终止。 */
    forceKillAfterMs?: number;
    /** 仅用于测试替换；生产实现持有已验证 cgroup v2 的 cgroup.kill 文件句柄。 */
    openCgroupKill?(file: string): Promise<CgroupKillHandle>;
}
interface CgroupKillHandle {
    kill(): Promise<void>;
    close(): Promise<void>;
}
/** 调用者持有服务锁；这里既不写定义，也不尝试用未知状态恢复服务。 */
export declare class SystemdServicePlatform implements ServicePlatform {
    private readonly host;
    private readonly scope;
    private readonly expectedDefinitionPath;
    private readonly readFile;
    private readonly openCgroupKill;
    private readonly now;
    private readonly sleep;
    private readonly timeout;
    private readonly forceKillAfter;
    constructor(host: ServiceHost, scope: ServiceScope, expectedDefinitionPath: string, options?: SystemdServicePlatformOptions);
    private command;
    private show;
    inspect(): Promise<ServicePlatformState>;
    private inspectWithin;
    private inspectDetailedWithin;
    private stable;
    private stableInstance;
    quiesce(): Promise<void>;
    reload(enabled: boolean): Promise<ServicePlatformState>;
    start(expectedInitialState?: ServicePlatformState): Promise<ServicePlatformState>;
}
export {};
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