import { Binary } from '@neo-one/server-plugin';
export declare class ServerManager {
    private readonly dataPath;
    private readonly serverVersion;
    constructor({ dataPath, serverVersion }: {
        readonly dataPath: string;
        readonly serverVersion: string;
    });
    getServerPID(): Promise<number | undefined>;
    getServerVersion(): Promise<string | undefined>;
    getCurrentVersion({ port }: {
        readonly port: number;
    }): Promise<string | undefined>;
    compareVersions(verA: string, verB: string): 1 | 0 | -1;
    getRelativeServerVersion({ port, expectedVersion, }: {
        readonly port: number;
        readonly expectedVersion: string;
    }): Promise<number | undefined>;
    checkAlive(port: number): Promise<number | undefined>;
    kill(optionsIn?: {
        readonly pid: number;
    }): Promise<void>;
    start({ port, httpPort, binary, onStart, }: {
        readonly port: number;
        readonly httpPort: number;
        readonly binary: Binary;
        readonly onStart?: () => void;
    }): Promise<{
        readonly pid: number;
        readonly started: boolean;
        readonly newerVersion: string | undefined;
    }>;
    writeVersionPID(pid: number, version: string): Promise<void>;
    writeVersion(version: string): Promise<void>;
    writePID(pid: number): Promise<void>;
    readonly checkPath: string;
    readonly pidPath: string;
    readonly versionPath: string;
}