import { Chunk } from './chunk/chunk';
import { ChunkId, Table } from './interface';
interface ChunkState {
    chunkRef: Chunk;
    size: number;
    expiresAt: number;
}
/**
 * InMemoryPool is a subset of ChunkPool abstraction
 * This pool saves rows in chunks that are stored in process memory
 *
 * @warning storing data in process memory can lead you to LOSS OF CONSISTANCE
 * but instead of this disadvantage you gain the cheapest and the most simple way to work
 * with clickhouse
 *
 * Data loss can only occur in two cases:
 * 1. When OS sends to a process SIGKILL code which is killing your process without grace
 * 2. When some piece of data contains anomalies such as `undefined` etc
 */
export declare class ChunkRegistry {
    #private;
    /**
     * Create InMemoryPool instance
     */
    constructor();
    increaseSize(id: ChunkId, delta: number): void;
    decreaseSize(id: ChunkId, delta: number): void;
    register(chunk: Chunk): void;
    unregister(id: ChunkId): void;
    getOne(id: ChunkId): ChunkState;
    getAll(): ChunkState[];
    isEmpty(): boolean;
    getTables(): Table[];
    getChunks(): ChunkId[];
}
export {};