@lodestar/beacon-node
Version:
A Typescript implementation of the beacon chain
36 lines • 1.67 kB
JavaScript
import { DataAvailabilityStatus } from "@lodestar/state-transition";
import { DAType } from "./blockInput/index.js";
// we can now wait for full 12 seconds because unavailable block sync will try pulling
// the blobs from the network anyway after 500ms of seeing the block
export const BLOB_AVAILABILITY_TIMEOUT = 12_000;
/**
* Verifies that all block inputs have data available.
* - Waits a max of BLOB_AVAILABILITY_TIMEOUT for all data to be available
* - Returns the time at which all data was available
* - Returns the data availability status for each block input
*/
export async function verifyBlocksDataAvailability(blocks, signal) {
const promises = [];
for (const blockInput of blocks) {
// block verification is triggered on a verified gossip block so we only need to wait for all data
if (!blockInput.hasAllData()) {
promises.push(blockInput.waitForAllData(BLOB_AVAILABILITY_TIMEOUT, signal));
}
}
await Promise.all(promises);
const availableTime = Math.max(0, Math.max(...blocks.map((blockInput) => blockInput.getTimeComplete())));
const dataAvailabilityStatuses = blocks.map((blockInput) => {
if (blockInput.type === DAType.NoData) {
return DataAvailabilityStatus.NotRequired;
}
if (blockInput.type === DAType.PreData) {
return DataAvailabilityStatus.PreData;
}
if (blockInput.daOutOfRange) {
return DataAvailabilityStatus.OutOfRange;
}
return DataAvailabilityStatus.Available;
});
return { dataAvailabilityStatuses, availableTime };
}
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