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

Example 36 with Block

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

the class AionBlockchainImpl method getListOfHeadersStartFrom.

/**
 * Returns up to limit headers found with following search parameters
 *
 * @param blockNumber Identifier of start block, by number
 * @param limit Maximum number of headers in return
 * @return {@link MiningBlockHeader}'s list or empty list if none found
 */
@Override
public List<BlockHeader> getListOfHeadersStartFrom(long blockNumber, int limit) {
    if (limit <= 0) {
        return emptyList();
    }
    // identifying block we'll move from
    Block startBlock = getBlockByNumber(blockNumber);
    // if nothing found on main chain, return empty array
    if (startBlock == null) {
        return emptyList();
    }
    List<BlockHeader> headers;
    long bestNumber = bestBlock.getNumber();
    headers = getContinuousHeaders(bestNumber, blockNumber, limit);
    return headers;
}

Example 37 with Block

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

the class AionImpl method getStakingBlockTemplate.

// Returns null if we're waiting on a Mining block, or if creating a new block template failed for some reason
@Override
public StakingBlock getStakingBlockTemplate(byte[] newSeed, byte[] signingPublicKey, byte[] coinbase) {
    lock.lock();
    try {
        Block best = getBlockchain().getBestBlock();
        LOG_GEN.debug("getStakingBlockTemplate best:{}", best);
        if (best.getHeader().getSealType() == Seal.PROOF_OF_STAKE) {
            return null;
        } else {
            return getBlockchain().createStakingBlockTemplate(best, getAionHub().getPendingState().getPendingTransactions(), signingPublicKey, newSeed, coinbase);
        }
    } finally {
        lock.unlock();
    }
}

Example 38 with Block

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

the class AionImpl method addNewBlock.

/**
 * @implNote import a new block from the api server or the internal PoW miner, the kernel will
 * reject to import a new block has the same or less than the kernel block height to reduce the orphan
 * block happens (AKI-707)
 */
public ImportResult addNewBlock(Block block) {
    getLock().lock();
    try {
        Block bestBlock = getAionHub().getBlockchain().getBestBlock();
        ImportResult importResult;
        if (bestBlock.getNumber() >= block.getNumber()) {
            importResult = ImportResult.INVALID_BLOCK;
        } else {
            importResult = this.aionHub.getBlockchain().tryToConnect(new BlockWrapper(block, true, false, false, false));
        }
        LOG_GEN.debug("ImportResult:{} new block:{}", importResult, block);
        if (importResult == ImportResult.IMPORTED_BEST) {
            this.aionHub.getPropHandler().propagateNewBlock(block);
        }
        return importResult;
    } finally {
        getLock().unlock();
    }
}

Example 39 with Block

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

the class BlockPropagationTest method testPropagateBlockToPeer.

// given two peers, and one sends you a new block, propagate to the other
@Test
public void testPropagateBlockToPeer() {
    List<ECKey> accounts = generateDefaultAccounts();
    StandaloneBlockchain.Bundle bundle = new StandaloneBlockchain.Builder().withValidatorConfiguration("simple").withDefaultAccounts(accounts).build();
    MiningBlock block = bundle.bc.createNewMiningBlock(bundle.bc.getGenesis(), Collections.EMPTY_LIST, true);
    assertThat(block.getNumber()).isEqualTo(1);
    byte[] sender = HashUtil.h256("node1".getBytes());
    byte[] receiver = HashUtil.h256("receiver".getBytes());
    NodeMock senderMock = new NodeMock(sender, 1);
    NodeMock receiverMock = new NodeMock(receiver, 0);
    Map<Integer, INode> node = new HashMap<>();
    node.put(1, senderMock);
    node.put(2, receiverMock);
    AtomicInteger times = new AtomicInteger();
    P2pMock p2pMock = new P2pMock(node) {

        @Override
        public void send(int _nodeId, String s, Msg _msg) {
            if (_nodeId != receiverMock.getIdHash()) {
                throw new RuntimeException("should only send to receiver");
            }
            times.getAndIncrement();
        }
    };
    StandaloneBlockchain.Bundle anotherBundle = new StandaloneBlockchain.Builder().withValidatorConfiguration("simple").withDefaultAccounts(accounts).withEventManger(this.loadEventMgr()).build();
    assertThat(bundle.bc.genesis.getHash()).isEqualTo(anotherBundle.bc.genesis.getHash());
    assertThat(block.getParentHash()).isEqualTo(bundle.bc.genesis.getHash());
    assertThat(block.getParentHash()).isEqualTo(anotherBundle.bc.genesis.getHash());
    Block bestBlock = bundle.bc.getBestBlock();
    assertThat(bestBlock.getHash()).isEqualTo(anotherBundle.bc.genesis.getHash());
    SyncStats syncStats = new SyncStats(bestBlock.getNumber(), true);
    BlockPropagationHandler handler = new BlockPropagationHandler(1024, // NOTE: not the same blockchain that generated the block
    anotherBundle.bc, syncStats, p2pMock, anotherBundle.bc.getBlockHeaderValidator(), false, (byte) 2, new AionPendingStateImpl(anotherBundle.bc, blockEnergyUpperBound, pendingTransactionTimeout, enablePoolBackup, enableSeedMode, enablePoolDump, new PendingTxCallback(new ArrayList<>()), new NetworkBestBlockCallback(AionImpl.inst()), new TransactionBroadcastCallback(AionImpl.inst()), true));
    // block is processed
    assertThat(handler.processIncomingBlock(senderMock.getIdHash(), "test", block)).isEqualTo(BlockPropagationHandler.PropStatus.PROP_CONNECTED);
    assertThat(times.get()).isEqualTo(1);
}

Example 40 with Block

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

the class AionBlockStoreTest method testGetTwoGenerationBlocksByHashWithInfo.

@Test
public void testGetTwoGenerationBlocksByHashWithInfo() {
    Block grandparent = consecutiveBlocks.get(0);
    Block parent = consecutiveBlocks.get(1);
    AionBlockStore store = new AionBlockStore(index, blocks, false);
    // does not require accurate total difficulty
    store.saveBlock(grandparent, BigInteger.TWO, true);
    store.saveBlock(parent, BigInteger.TEN, true);
    Block[] blocks = store.getTwoGenerationBlocksByHashWithInfo(parent.getHash());
    assertThat(blocks.length).isEqualTo(2);
    assertThat(blocks[0]).isEqualTo(parent);
    assertThat(blocks[0].getTotalDifficulty()).isEqualTo(BigInteger.TEN);
    assertThat(blocks[0].isMainChain()).isTrue();
    assertThat(blocks[1]).isEqualTo(grandparent);
    assertThat(blocks[1].getTotalDifficulty()).isEqualTo(BigInteger.TWO);
    assertThat(blocks[1].isMainChain()).isTrue();
}