interface RequestConfig<T> {
    name?: string;
    requestFn: (signal: AbortSignal) => Promise<T>;
    validateFn?: (data: T) => boolean;
}
interface SuccessResult<T> {
    success: true;
    data: T;
    source: string;
    index: number;
    cancelled?: never;
}
interface CancelledResult {
    success: false;
    cancelled: true;
    data?: never;
    source?: never;
    index?: never;
}
type RequestResult<T> = SuccessResult<T> | CancelledResult;
interface RaceOptions {
    timeout?: number;
    abortOnFirstSuccess?: boolean;
}
export default class RaceRequestManager {
    private activeControllers;
    private defaultOptions;
    /**
     * 竞态请求，返回第一个成功且有效的结果
     * @param requestConfigs 请求配置数组
     * @param options 选项
     * @returns 第一个成功的结果
     */
    raceForValidResult<T>(requestConfigs: RequestConfig<T>[], options?: RaceOptions): Promise<SuccessResult<T>>;
    /**
     * 创建可取消的请求
     */
    private createCancellableRequest;
    /**
     * 清理所有活动的请求控制器
     */
    cleanup(): void;
    /**
     * 获取当前活动的请求数量
     */
    getActiveRequestCount(): number;
}
export { RaceRequestManager, type RequestConfig, type SuccessResult, type CancelledResult, type RequestResult, type RaceOptions };