import { IDiskFileChange } from '../watcher';
import { IWatcherRequest, IWatcherService, IWatcherOptions, IWatchError } from './watcher';
import { Event } from '@vscode-alt/monaco-editor/esm/vs/base/common/event';
export interface IChockidarWatcherOptions {
    pollingInterval?: number;
}
export declare class ChokidarWatcherService implements IWatcherService {
    private static readonly FS_EVENT_DELAY;
    private static readonly EVENT_SPAM_WARNING_THRESHOLD;
    private _watchers;
    private _watcherCount;
    private _pollingInterval?;
    private _verboseLogging;
    private spamCheckStartTime;
    private spamWarningLogged;
    private enospcErrorLogged;
    private _onWatchEvent;
    readonly onWatchEvent: Event<IDiskFileChange[] | IWatchError>;
    watch(options: IWatcherOptions & IChockidarWatcherOptions): Event<IDiskFileChange[] | IWatchError>;
    setVerboseLogging(enabled: boolean): Promise<void>;
    setRoots(requests: IWatcherRequest[]): Promise<void>;
    get wacherCount(): number;
    private _watch;
    stop(): Promise<void>;
}
/**
 * Normalizes a set of root paths by grouping by the most parent root path.
 * equests with Sub paths are skipped if they have the same ignored set as the parent.
 */
export declare function normalizeRoots(requests: IWatcherRequest[]): {
    [basePath: string]: IWatcherRequest[];
};