Examples with AionBlock org.aion.zero.impl.types.AionBlock used on opensource projects

Example 11 with AionBlock

use of org.aion.zero.impl.types.AionBlock in project aion by aionnetwork.

the class AionBlockchainImpl method getListOfBodiesByHashes.

@Override
public List<byte[]> getListOfBodiesByHashes(List<byte[]> hashes) {
    List<byte[]> bodies = new ArrayList<>(hashes.size());
    for (byte[] hash : hashes) {
        AionBlock block = getBlockStore().getBlockByHash(hash);
        if (block == null) {
            break;
        }
        bodies.add(block.getEncodedBody());
    }
    return bodies;
}

Example 12 with AionBlock

use of org.aion.zero.impl.types.AionBlock in project aion by aionnetwork.

the class AionHub method loadBlockchain.

private void loadBlockchain() {
    this.repository.getBlockStore().load();
    AionBlock bestBlock = this.repository.getBlockStore().getBestBlock();
    boolean recovered = true;
    boolean bestBlockShifted = true;
    int countRecoveryAttempts = 0;
    // fix the trie if necessary
    while (// the best block was updated after recovery attempt
    bestBlockShifted && // allow 5 recovery attempts
    (countRecoveryAttempts < 5) && // recover only for non-null blocks
    bestBlock != null && !this.repository.isValidRoot(bestBlock.getStateRoot())) {
        long bestBlockNumber = bestBlock.getNumber();
        byte[] bestBlockRoot = bestBlock.getStateRoot();
        recovered = this.blockchain.recoverWorldState(this.repository, bestBlockNumber);
        if (recovered) {
            bestBlock = this.repository.getBlockStore().getBestBlock();
            // checking is the best block has changed since attempting recovery
            if (bestBlock == null) {
                bestBlockShifted = true;
            } else {
                bestBlockShifted = // block number changed
                !(bestBlockNumber == bestBlock.getNumber()) || // root hash changed
                !(Arrays.equals(bestBlockRoot, bestBlock.getStateRoot()));
            }
            if (bestBlockShifted) {
                LOG.info("Rebuilding world state SUCCEEDED by REVERTING to a previous block.");
            } else {
                LOG.info("Rebuilding world state SUCCEEDED.");
            }
        } else {
            LOG.error("Rebuilding world state FAILED. " + "Stop the kernel (Ctrl+C) and use the command line revert option to move back to a valid block. " + "Check the Aion wiki for recommendations on choosing the block number.");
        }
        countRecoveryAttempts++;
    }
    // rebuild from genesis if (1) no best block (2) recovery failed
    if (bestBlock == null || !recovered) {
        if (bestBlock == null) {
            LOG.info("DB is empty - adding Genesis");
        } else {
            LOG.info("DB could not be recovered - adding Genesis");
        }
        AionGenesis genesis = cfg.getGenesis();
        // initialization section for network balance contract
        IRepositoryCache track = repository.startTracking();
        Address networkBalanceAddress = PrecompiledContracts.totalCurrencyAddress;
        track.createAccount(networkBalanceAddress);
        for (Map.Entry<Integer, BigInteger> addr : genesis.getNetworkBalances().entrySet()) {
            track.addStorageRow(networkBalanceAddress, new DataWord(addr.getKey()), new DataWord(addr.getValue()));
        }
        for (Address addr : genesis.getPremine().keySet()) {
            track.createAccount(addr);
            track.addBalance(addr, genesis.getPremine().get(addr).getBalance());
        }
        track.flush();
        repository.commitBlock(genesis.getHeader());
        this.repository.getBlockStore().saveBlock(genesis, genesis.getCumulativeDifficulty(), true);
        blockchain.setBestBlock(genesis);
        blockchain.setTotalDifficulty(genesis.getCumulativeDifficulty());
        if (this.eventMgr != null) {
            List<IEvent> evts = new ArrayList<>();
            evts.add(new EventBlock(EventBlock.CALLBACK.ONBLOCK0));
            evts.add(new EventBlock(EventBlock.CALLBACK.ONTRACE0));
            this.eventMgr.registerEvent(evts);
        } else {
            LOG.error("Event manager is null !!!");
            System.exit(-1);
        }
        LOG.info("loaded genesis block <num={}, root={}>", 0, ByteUtil.toHexString(genesis.getStateRoot()));
    } else {
        blockchain.setBestBlock(bestBlock);
        BigInteger totalDifficulty = this.repository.getBlockStore().getTotalDifficulty();
        blockchain.setTotalDifficulty(totalDifficulty);
        LOG.info("loaded block <num={}, root={}>", blockchain.getBestBlock().getNumber(), LogUtil.toHexF8(blockchain.getBestBlock().getStateRoot()));
    }
    if (!Arrays.equals(blockchain.getBestBlock().getStateRoot(), EMPTY_TRIE_HASH)) {
        this.repository.syncToRoot(blockchain.getBestBlock().getStateRoot());
    }
    this.repository.getBlockStore().load();
}

Example 13 with AionBlock

use of org.aion.zero.impl.types.AionBlock in project aion by aionnetwork.

the class AionBlockStore method getListBlocksEndWithInner.

private List<AionBlock> getListBlocksEndWithInner(byte[] hash, long qty) {
    AionBlock block = this.blocks.get(hash);
    if (block == null) {
        return new ArrayList<>();
    }
    List<AionBlock> blocks = new ArrayList<>((int) qty);
    for (int i = 0; i < qty; ++i) {
        blocks.add(block);
        block = this.blocks.get(block.getParentHash());
        if (block == null) {
            break;
        }
    }
    return blocks;
}

Example 14 with AionBlock

use of org.aion.zero.impl.types.AionBlock in project aion by aionnetwork.

the class AionPoW method processSolution.

/**
 * Processes a received solution.
 *
 * @param solution
 *            The generated equihash solution
 */
protected synchronized void processSolution(Solution solution) {
    if (!shutDown.get()) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("Best block num [{}]", blockchain.getBestBlock().getNumber());
            LOG.debug("Best block nonce [{}]", Hex.toHexString(blockchain.getBestBlock().getNonce()));
            LOG.debug("Best block hash [{}]", Hex.toHexString(blockchain.getBestBlock().getHash()));
        }
        AionBlock block = (AionBlock) solution.getBlock();
        if (!Arrays.equals(block.getHeader().getNonce(), new byte[32])) {
            // block has been processed
            return;
        }
        // set the nonce and solution
        block.getHeader().setNonce(solution.getNonce());
        block.getHeader().setSolution(solution.getSolution());
        block.getHeader().setTimestamp(solution.getTimeStamp());
        // This can be improved
        ImportResult importResult = AionImpl.inst().addNewMinedBlock(block);
        // Check that the new block was successfully added
        if (importResult.isSuccessful()) {
            if (importResult == IMPORTED_BEST) {
                LOG.info("block sealed <num={}, hash={}, diff={}, tx={}>", block.getNumber(), block.getShortHash(), // LogUtil.toHexF8(newBlock.getHash()),
                block.getHeader().getDifficultyBI().toString(), block.getTransactionsList().size());
            } else {
                LOG.debug("block sealed <num={}, hash={}, diff={}, tx={}, result={}>", block.getNumber(), // LogUtil.toHexF8(newBlock.getHash()),
                block.getShortHash(), block.getHeader().getDifficultyBI().toString(), block.getTransactionsList().size(), importResult);
            }
        // TODO: fire block mined event
        } else {
            LOG.info("Unable to import a new mined block; restarting mining.\n" + "Mined block import result is " + importResult + " : " + block.getShortHash());
        }
    }
}

Example 15 with AionBlock

use of org.aion.zero.impl.types.AionBlock in project aion by aionnetwork.

the class BlockPropagationHandler method send.

private boolean send(AionBlock block, int nodeId) {
    // current proposal is to send to all peers with lower blockNumbers
    AtomicBoolean sent = new AtomicBoolean();
    this.p2pManager.getActiveNodes().values().stream().filter(n -> n.getIdHash() != nodeId).filter(n -> n.getBestBlockNumber() <= block.getNumber()).forEach(n -> {
        if (log.isDebugEnabled())
            log.debug("<sending-new-block hash=" + block.getShortHash() + " to-node=" + n.getIdShort() + ">");
        this.p2pManager.send(n.getIdHash(), new BroadcastNewBlock(block));
        sent.getAndSet(true);
    });
    return sent.get();
}