@lodestar/beacon-node/lib/network/processor/gossipQueues/index.d.ts

A Typescript implementation of the beacon chain

import { GossipType } from "../../gossip/interface.js";
import { PendingGossipsubMessage } from "../types.js";
import { GossipQueue } from "./types.js";
/**
 * Minimum signature sets to batch verify without waiting for 50ms.
 */
export declare const MIN_SIGNATURE_SETS_TO_BATCH_VERIFY = 32;
/**
 * Wraps a GossipValidatorFn with a queue, to limit the processing of gossip objects by type.
 *
 * A queue here is essential to protect against DOS attacks, where a peer may send many messages at once.
 * Queues also protect the node against overloading. If the node gets bussy with an expensive epoch transition,
 * it may buffer too many gossip objects causing an Out of memory (OOM) error. With a queue the node will reject
 * new objects to fit its current throughput.
 *
 * Queues may buffer objects by
 *  - topic '/eth2/0011aabb/beacon_attestation_0/ssz_snappy'
 *  - type `GossipType.beacon_attestation`
 *  - all objects in one queue
 *
 * By topic is too specific, so by type groups all similar objects in the same queue. All in the same won't allow
 * to customize different queue behaviours per object type (see `gossipQueueOpts`).
 */
export declare function createGossipQueues(): {
    [K in GossipType]: GossipQueue<PendingGossipsubMessage>;
};
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