/**
 * Process lifetime for the daemon — deliberately the inverse of installMcpServerLifecycle:
 * no stdin coupling and no transport coupling. Only signals, an explicit stop, sustained
 * idleness (zero sessions AND zero active runs for the TTL), or supersession end the process.
 * The unref'd reaper also evicts dead-client sessions so they cannot hold the daemon alive
 * forever.
 *
 * Supersession (a newer daemon owns this family's discovery pointer) turns the daemon into a
 * lame duck, and the reaper then actively drains it instead of waiting for idleness:
 *   - every session with no request in flight is closed so its
 *     client transparently re-initializes on the successor; workflow execution remains on the
 *     predecessor and is reached through the internal run-control plane;
 *   - durable whole-stop intents are scanned on every reaper cadence;
 *   - the moment nothing is busy — no sessions, runs, or requests — the daemon exits,
 *     regardless of the idle TTL (even a disabled one: a superseded daemon with nothing to do is
 *     garbage, not a long-lived service).
 */
import type { AgentRunner } from "@automatalabs/shared-types";
import type { DaemonHandle } from "./http-daemon.js";
export type DaemonShutdownReason = "SIGTERM" | "SIGINT" | "idle" | "superseded";
interface DaemonProcessHandle {
    once(event: "SIGINT" | "SIGTERM", listener: () => void): unknown;
    removeListener(event: "SIGINT" | "SIGTERM", listener: () => void): unknown;
    exit(code?: number): unknown;
}
export interface DaemonLifecycleOptions {
    daemon: DaemonHandle;
    runner: AgentRunner;
    ownPid: number;
    /** 0 disables idle shutdown (supersession still exits the daemon once nothing is in flight). */
    idleTtlMs: number;
    sessionTtlMs: number;
    reaperIntervalMs?: number;
    process?: DaemonProcessHandle;
    log?: (line: string) => void;
}
export interface DaemonLifecycle {
    shutdown(reason: DaemonShutdownReason): Promise<void>;
}
export declare function installDaemonLifecycle(options: DaemonLifecycleOptions): DaemonLifecycle;
export {};
//# sourceMappingURL=daemon-lifecycle.d.ts.map