import { Nullable } from '../common-types';
import { Packet } from './packet';
import { PacketDataModel } from './packet-model';
/**
 * pushPacket: when return false, packet vanishes, when true, get transferred
 * popPacket: will get called when isClear is false until tap is "cleared"
 * flush: should drop all internal state
 * @see SocketBase#handleWithTap_
 */
export interface SocketTap {
    pushPacket(p: Packet): boolean;
    popPacket(): Nullable<Packet>;
    isClear(): boolean;
    flush(): any;
}
export declare class SocketTapDefault implements SocketTap {
    pushPacket(p: Packet): boolean;
    popPacket(): Nullable<Packet>;
    isClear(): boolean;
    flush(): void;
}
export declare class SocketTapPacketCapture extends SocketTapDefault {
    readonly dataList: PacketDataModel[];
    pushPacket(p: Packet): boolean;
    isClear(): boolean;
    flush(): void;
}