Examples with UInt256 neo.model.bytes.UInt256 used on opensource projects

Example 36 with UInt256

use of neo.model.bytes.UInt256 in project neo-java by coranos.

the class LocalNodeDataSynchronizedUtil method verifyUnverifiedBlocks.

/**
 * verify any unverified blocks, by checking for their prevHash in the
 * blockchain.
 *
 * @param localNodeData
 *            the local node data to use.
 * @return true if any block was added to the chain.
 */
public static boolean verifyUnverifiedBlocks(final LocalNodeData localNodeData) {
    synchronized (localNodeData) {
        boolean anyBlockChanged = false;
        final List<Block> putBlockList = new ArrayList<>();
        final Set<UInt256> putBlockHashs = new TreeSet<>();
        for (final Block block : localNodeData.getUnverifiedBlockPoolSet()) {
            if (localNodeData.getBlockDb().containsBlockWithHash(block.prevHash) || block.hash.equals(GenesisBlockUtil.GENESIS_HASH) || putBlockHashs.contains(block.prevHash)) {
                putBlockList.add(block);
                putBlockHashs.add(block.hash);
                anyBlockChanged = true;
                localNodeData.updateHighestBlockTime();
                final long blockIndex = block.getIndexAsLong();
                localNodeData.getVerifiedHeaderPoolMap().remove(blockIndex);
            }
        }
        final Block highestBlock = localNodeData.getBlockDb().getHeaderOfBlockWithMaxIndex();
        if (!putBlockList.isEmpty()) {
            final boolean forceSynch;
            final long localBlockHeight;
            if (highestBlock != null) {
                localBlockHeight = highestBlock.getIndexAsLong();
            } else {
                localBlockHeight = 0;
            }
            final long blockchainBlockHeight = localNodeData.getBlockchainBlockHeight();
            final long localBlockHeightLowerBy = blockchainBlockHeight - localBlockHeight;
            if (localBlockHeightLowerBy < 10) {
                forceSynch = true;
            } else {
                forceSynch = false;
            }
            if (LOG.isDebugEnabled()) {
                final String msg = "INTERIM put forceSynch={};localBlockHeight:{};blockchainBlockHeight:{};localBlockHeightLowerBy:{};";
                LOG.debug(msg, forceSynch, localBlockHeight, blockchainBlockHeight, localBlockHeightLowerBy);
            }
            localNodeData.getBlockDb().put(forceSynch, putBlockList.toArray(new Block[0]));
        }
        if (highestBlock != null) {
            final long highestIndex = highestBlock.getIndexAsLong();
            final Iterator<Block> blockIt = localNodeData.getUnverifiedBlockPoolSet().iterator();
            while (blockIt.hasNext()) {
                final Block block = blockIt.next();
                if (block.getIndexAsLong() <= highestIndex) {
                    blockIt.remove();
                    anyBlockChanged = true;
                }
            }
        }
        return anyBlockChanged;
    }
}