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

Example 56 with AionBlock

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

the class ApiAion method getTransactionByBlockHashAndIndex.

public AionTransaction getTransactionByBlockHashAndIndex(byte[] hash, long index) {
    AionBlock pBlk = this.getBlockByHash(hash);
    if (pBlk == null) {
        if (LOG.isErrorEnabled()) {
            LOG.error("ApiAion.getTransactionByBlockHashAndIndex - can't find the block by the block hash");
        }
        return null;
    }
    List<AionTransaction> txList = pBlk.getTransactionsList();
    AionTransaction tx = txList.get((int) index);
    if (tx == null) {
        if (LOG.isErrorEnabled()) {
            LOG.error("Can't find the transaction!");
        }
        return null;
    }
    TxRecpt receipt = this.getTransactionReceipt(tx.getHash());
    // TODO
    if (receipt == null) {
        throw new NullPointerException();
    }
    tx.setBlockNumber(pBlk.getNumber());
    tx.setBlockHash(pBlk.getHash());
    tx.setTxIndexInBlock(index);
    tx.setNrgConsume(receipt.nrgUsed);
    return tx;
}

Example 57 with AionBlock

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

the class AionBlockchainImpl method createNewBlock.

public synchronized AionBlock createNewBlock(AionBlock parent, List<AionTransaction> txs, boolean waitUntilBlockTime) {
    long time = System.currentTimeMillis() / THOUSAND_MS;
    if (parent.getTimestamp() >= time) {
        time = parent.getTimestamp() + 1;
        while (waitUntilBlockTime && System.currentTimeMillis() / THOUSAND_MS <= time) {
            try {
                Thread.sleep(500);
            } catch (InterruptedException e) {
                break;
            }
        }
    }
    long energyLimit = this.chainConfiguration.calcEnergyLimit(parent.getHeader());
    A0BlockHeader.Builder headerBuilder = new A0BlockHeader.Builder();
    headerBuilder.withParentHash(parent.getHash()).withCoinbase(minerCoinbase).withNumber(parent.getNumber() + 1).withTimestamp(time).withExtraData(minerExtraData).withTxTrieRoot(calcTxTrie(txs)).withEnergyLimit(energyLimit);
    AionBlock block = new AionBlock(headerBuilder.build(), txs);
    block.getHeader().setDifficulty(ByteUtil.bigIntegerToBytes(this.chainConfiguration.getDifficultyCalculator().calculateDifficulty(block.getHeader(), parent.getHeader()), DIFFICULTY_BYTES));
    /*
         * Begin execution phase
         */
    pushState(parent.getHash());
    track = repository.startTracking();
    track.rollback();
    RetValidPreBlock preBlock = generatePreBlock(block);
    /*
         * Calculate the gas used for the included transactions
         */
    long totalEnergyUsed = 0;
    for (AionTxExecSummary summary : preBlock.summaries) {
        totalEnergyUsed = totalEnergyUsed + summary.getNrgUsed().longValueExact();
    }
    byte[] stateRoot = getRepository().getRoot();
    popState();
    /*
         * End execution phase
         */
    Bloom logBloom = new Bloom();
    for (AionTxReceipt receipt : preBlock.receipts) {
        logBloom.or(receipt.getBloomFilter());
    }
    block.seal(preBlock.txs, calcTxTrie(preBlock.txs), stateRoot, logBloom.getData(), calcReceiptsTrie(preBlock.receipts), totalEnergyUsed);
    return block;
}

Example 58 with AionBlock

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

the class AionBlockchainImpl method recoverWorldState.

@Override
public synchronized boolean recoverWorldState(IRepository repository, long blockNumber) {
    AionRepositoryImpl repo = (AionRepositoryImpl) repository;
    Map<Long, AionBlock> dirtyBlocks = new HashMap<>();
    AionBlock other;
    // find all the blocks missing a world state
    long index = blockNumber;
    do {
        other = repo.getBlockStore().getChainBlockByNumber(index);
        // cannot recover if no valid states exist (must build from genesis)
        if (other == null) {
            return false;
        } else {
            dirtyBlocks.put(other.getNumber(), other);
            index--;
        }
    } while (!repo.isValidRoot(other.getStateRoot()));
    // sync to the last correct state
    repo.syncToRoot(other.getStateRoot());
    // remove the last added block because it has a correct world state
    index = other.getNumber();
    dirtyBlocks.remove(index);
    LOG.info("Corrupt world state at block #" + blockNumber + ". Rebuilding from block #" + index + ".");
    index++;
    // rebuild world state for dirty blocks
    while (!dirtyBlocks.isEmpty()) {
        LOG.info("Rebuilding block #" + index + ".");
        other = dirtyBlocks.remove(index);
        this.add(other, true);
        index++;
    }
    // update the repository
    repo.flush();
    // return a flag indicating if the recovery worked
    if (repo.isValidRoot(repo.getBlockStore().getChainBlockByNumber(blockNumber).getStateRoot())) {
        return true;
    } else {
        // reverting back one block
        LOG.info("Rebuild FAILED. Reverting to previous block.");
        RecoveryUtils.Status status = RecoveryUtils.revertTo(this, blockNumber - 1);
        return (status == RecoveryUtils.Status.SUCCESS) && repo.isValidRoot(repo.getBlockStore().getChainBlockByNumber(blockNumber - 1).getStateRoot());
    }
}

Example 59 with AionBlock

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

the class AionBlockStore method getListHashesEndWith.

@Override
public List<byte[]> getListHashesEndWith(byte[] hash, long number) {
    List<AionBlock> blocks = getListBlocksEndWith(hash, number);
    List<byte[]> hashes = new ArrayList<>(blocks.size());
    for (IAionBlock b : blocks) {
        hashes.add(b.getHash());
    }
    return hashes;
}

Example 60 with AionBlock

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

the class AionPoW method createNewBlockTemplate.

/**
 * Creates a new block template.
 */
protected synchronized void createNewBlockTemplate() {
    if (!shutDown.get()) {
        if (!config.getConsensus().getMining()) {
            return;
        }
        // it be used in DDOS?
        if (this.syncMgr.getNetworkBestBlockNumber() - blockchain.getBestBlock().getNumber() > syncLimit) {
            return;
        }
        if (LOG.isDebugEnabled()) {
            LOG.debug("Creating a new block template");
        }
        AionBlock bestBlock = blockchain.getBlockByNumber(blockchain.getBestBlock().getNumber());
        List<AionTransaction> txs = pendingState.getPendingTransactions();
        AionBlock newBlock = blockchain.createNewBlock(bestBlock, txs, false);
        EventConsensus ev = new EventConsensus(EventConsensus.CALLBACK.ON_BLOCK_TEMPLATE);
        ev.setFuncArgs(Collections.singletonList(newBlock));
        eventMgr.newEvent(ev);
        // update last timestamp
        lastUpdate.set(System.currentTimeMillis());
    }
}