machankura/mempool
3
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Perform a blockchain sync check before updating initial difficulty ad… (#677)

Browse Source 
* Perform a blockchain sync check before updating initial difficulty adjustment.

fixes #603

* Updating logger messages.
This commit is contained in:
softsimon 2021-08-01 15:49:26 +03:00 committed by GitHub
parent a0559cbb24
commit 4895343d4e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 61 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
backend/src/api/bitcoin/bitcoin-api.interface.ts
View File

@ -113,4 +113,46 @@ export namespace IBitcoinApi {
status: 'invalid' | 'headers-only' | 'valid-headers' | 'valid-fork' | 'active';
}
export interface BlockchainInfo {
chain: number; // (string) current network name as defined in BIP70 (main, test, regtest)
blocks: number; // (numeric) the current number of blocks processed in the server
headers: number; // (numeric) the current number of headers we have validated
bestblockhash: string, // (string) the hash of the currently best block
difficulty: number; // (numeric) the current difficulty
mediantime: number; // (numeric) median time for the current best block
verificationprogress: number; // (numeric) estimate of verification progress [0..1]
initialblockdownload: boolean; // (bool) (debug information) estimate of whether this node is in Initial Block Download mode.
chainwork: string // (string) total amount of work in active chain, in hexadecimal
size_on_disk: number; // (numeric) the estimated size of the block and undo files on disk
pruned: number; // (boolean) if the blocks are subject to pruning
pruneheight: number; // (numeric) lowest-height complete block stored (only present if pruning is enabled)
automatic_pruning: number; // (boolean) whether automatic pruning is enabled (only present if pruning is enabled)
prune_target_size: number; // (numeric) the target size used by pruning (only present if automatic pruning is enabled)
softforks: SoftFork[]; // (array) status of softforks in progress
bip9_softforks: { [name: string]: Bip9SoftForks[] } // (object) status of BIP9 softforks in progress
warnings: string; // (string) any network and blockchain warnings.
}
interface SoftFork {
id: string; // (string) name of softfork
version: number; // (numeric) block version
reject: { // (object) progress toward rejecting pre-softfork blocks
status: boolean; // (boolean) true if threshold reached
},
}
interface Bip9SoftForks {
status: number; // (string) one of defined, started, locked_in, active, failed
bit: number; // (numeric) the bit (0-28) in the block version field used to signal this softfork (only for started status)
startTime: number; // (numeric) the minimum median time past of a block at which the bit gains its meaning
timeout: number; // (numeric) the median time past of a block at which the deployment is considered failed if not yet locked in
since: number; // (numeric) height of the first block to which the status applies
statistics: { // (object) numeric statistics about BIP9 signalling for a softfork (only for started status)
period: number; // (numeric) the length in blocks of the BIP9 signalling period
threshold: number; // (numeric) the number of blocks with the version bit set required to activate the feature
elapsed: number; // (numeric) the number of blocks elapsed since the beginning of the current period
count: number; // (numeric) the number of blocks with the version bit set in the current period
possible: boolean; // (boolean) returns false if there are not enough blocks left in this period to pass activation threshold
}
}
}

4
backend/src/api/bitcoin/bitcoin-base.api.ts
View File

@ -40,6 +40,10 @@ class BitcoinBaseApi {
}
return this.bitcoindClient.getMempoolInfo();
}
$getBlockchainInfo(): Promise<IBitcoinApi.BlockchainInfo> {
return this.bitcoindClient.getBlockchainInfo();
}
}
export default new BitcoinBaseApi();

23
backend/src/api/blocks.ts
View File

@ -6,6 +6,7 @@ import { BlockExtended, TransactionExtended } from '../mempool.interfaces';
import { Common } from './common';
import diskCache from './disk-cache';
import transactionUtils from './transaction-utils';
import bitcoinBaseApi from './bitcoin/bitcoin-base.api';
class Blocks {
private static INITIAL_BLOCK_AMOUNT = 8;
@ -45,15 +46,21 @@ class Blocks {
}
if (!this.lastDifficultyAdjustmentTime) {
const heightDiff = blockHeightTip % 2016;
const blockHash = await bitcoinApi.$getBlockHash(blockHeightTip - heightDiff);
const block = await bitcoinApi.$getBlock(blockHash);
this.lastDifficultyAdjustmentTime = block.timestamp;
this.currentDifficulty = block.difficulty;
const blockchainInfo = await bitcoinBaseApi.$getBlockchainInfo();
if (blockchainInfo.blocks === blockchainInfo.headers) {
const heightDiff = blockHeightTip % 2016;
const blockHash = await bitcoinApi.$getBlockHash(blockHeightTip - heightDiff);
const block = await bitcoinApi.$getBlock(blockHash);
this.lastDifficultyAdjustmentTime = block.timestamp;
this.currentDifficulty = block.difficulty;
const previousPeriodBlockHash = await bitcoinApi.$getBlockHash(blockHeightTip - heightDiff - 2016);
const previousPeriodBlock = await bitcoinApi.$getBlock(previousPeriodBlockHash);
this.previousDifficultyRetarget = (block.difficulty - previousPeriodBlock.difficulty) / previousPeriodBlock.difficulty * 100;
const previousPeriodBlockHash = await bitcoinApi.$getBlockHash(blockHeightTip - heightDiff - 2016);
const previousPeriodBlock = await bitcoinApi.$getBlock(previousPeriodBlockHash);
this.previousDifficultyRetarget = (block.difficulty - previousPeriodBlock.difficulty) / previousPeriodBlock.difficulty * 100;
logger.debug(`Initial difficulty adjustment data set.`);
} else {
logger.debug(`Blockchain headers (${blockchainInfo.headers}) and blocks (${blockchainInfo.blocks}) not in sync. Waiting...`);
}
}
while (this.currentBlockHeight < blockHeightTip) {