import type { RemoteObject, RpcMethod } from "../rpc.js";
import type { ThreadService } from "../services.js";
/** Exported-class kind of the main thread's log sink. */
export declare const LOG_SINK_KIND = "log-sink";
/** Methods of the main thread's log sink. */
export type LogSinkProtocol = {
    /** Write every record received so far (synchronous; backs a worker's `logger.flush()`). */
    flush: RpcMethod<[], void>;
};
/** Boot globals of {@link loggerThreadService}. */
export interface LoggerServiceGlobals {
    /** Main thread's log sink (a {@link RemoteLogSink} on the worker). */
    readonly sink: MainLogSink;
}
/** Main-thread log sink of worker records; crosses to workers by reference. */
export declare class MainLogSink {
    /** Write main's buffered records now. */
    flush(): void;
}
/** Worker-side proxy of the main thread's {@link MainLogSink}. */
export declare class RemoteLogSink {
    #private;
    constructor(remote: RemoteObject<LogSinkProtocol>);
    /** Block until main wrote every record posted before this call. */
    flush(): void;
}
/** Makes a worker's `logger.flush()` wait for main to write its records. */
export declare const loggerThreadService: ThreadService;