Examples with BlockHeader org.ethereum.core.BlockHeader used on opensource projects

Example 26 with BlockHeader

use of org.ethereum.core.BlockHeader in project rskj by rsksmart.

the class BlockDifficultyRule method isValid.

@Override
public boolean isValid(Block block, Block parent) {
    if (block == null || parent == null) {
        logger.warn("BlockDifficultyRule - block or parent are null");
        return false;
    }
    BlockHeader header = block.getHeader();
    BlockDifficulty calcDifficulty = difficultyCalculator.calcDifficulty(header, parent.getHeader());
    BlockDifficulty difficulty = header.getDifficulty();
    if (!difficulty.equals(calcDifficulty)) {
        logger.warn("#{}: difficulty != calcDifficulty", header.getNumber());
        return false;
    }
    return true;
}

Example 27 with BlockHeader

use of org.ethereum.core.BlockHeader in project rskj by rsksmart.

the class BlockParentGasLimitRule method isValid.

@Override
public boolean isValid(Block block, Block parent) {
    if (block == null || parent == null) {
        logger.warn("BlockParentGasLimitRule - block or parent are null");
        return false;
    }
    BlockHeader header = block.getHeader();
    BigInteger headerGasLimit = new BigInteger(1, header.getGasLimit());
    BigInteger parentGasLimit = new BigInteger(1, parent.getGasLimit());
    if (headerGasLimit.compareTo(parentGasLimit.multiply(BigInteger.valueOf(gasLimitBoundDivisor - 1L)).divide(BigInteger.valueOf(gasLimitBoundDivisor))) < 0 || headerGasLimit.compareTo(parentGasLimit.multiply(BigInteger.valueOf(gasLimitBoundDivisor + 1L)).divide(BigInteger.valueOf(gasLimitBoundDivisor))) > 0) {
        logger.warn(String.format("#%d: gas limit exceeds parentBlock.getGasLimit() (+-) GAS_LIMIT_BOUND_DIVISOR", header.getNumber()));
        return false;
    }
    return true;
}

Example 28 with BlockHeader

use of org.ethereum.core.BlockHeader in project rskj by rsksmart.

the class ValidGasUsedRule method isValid.

@Override
public boolean isValid(Block block) {
    BlockHeader header = block.getHeader();
    long gasUsed = header.getGasUsed();
    long gasLimit = new BigInteger(1, header.getGasLimit()).longValue();
    if (gasUsed < 0 || gasUsed > gasLimit) {
        logger.warn("Block gas used is less than 0 or more than the gas limit of the block");
        panicProcessor.panic("invalidGasValue", "Block gas used is less than 0 or more than the gas limit of the block");
        return false;
    }
    return true;
}

Example 29 with BlockHeader

use of org.ethereum.core.BlockHeader in project rskj by rsksmart.

the class BlockHeadersMessage method encode.

private void encode() {
    List<byte[]> encodedElements = new ArrayList<>();
    for (BlockHeader blockHeader : blockHeaders) {
        encodedElements.add(blockHeader.getEncoded());
    }
    byte[][] encodedElementArray = encodedElements.toArray(new byte[encodedElements.size()][]);
    this.encoded = RLP.encodeList(encodedElementArray);
}

Example 30 with BlockHeader

use of org.ethereum.core.BlockHeader in project rskj by rsksmart.

the class BlockUtilsTest method unknowAncestorsHashesUsingUncles.

@Test
public void unknowAncestorsHashesUsingUncles() {
    BlockChainBuilder blockChainBuilder = new BlockChainBuilder();
    BlockGenerator blockGenerator = new BlockGenerator();
    Genesis genesis = blockGenerator.getGenesisBlock();
    BlockChainImpl blockChain = blockChainBuilder.setGenesis(genesis).build();
    BlockStore store = new BlockStore();
    genesis.setStateRoot(blockChain.getRepository().getRoot());
    genesis.flushRLP();
    BlockBuilder blockBuilder = new BlockBuilder(blockChain, blockGenerator);
    Block block1 = blockBuilder.parent(genesis).build();
    Block block1b = blockBuilder.parent(genesis).build();
    Block block2 = blockBuilder.parent(block1).build();
    Block uncle1 = blockBuilder.parent(block1).build();
    Block uncle2 = blockBuilder.parent(block1).build();
    List<BlockHeader> uncles = new ArrayList<>();
    uncles.add(uncle1.getHeader());
    uncles.add(uncle2.getHeader());
    Block block3 = blockBuilder.parent(block2).uncles(uncles).build();
    store.saveBlock(block3);
    blockChain.tryToConnect(genesis);
    blockChain.tryToConnect(block1);
    blockChain.tryToConnect(block1b);
    Set<Keccak256> hashes = BlockUtils.unknownAncestorsHashes(genesis.getHash(), blockChain, store);
    Assert.assertNotNull(hashes);
    Assert.assertTrue(hashes.isEmpty());
    hashes = BlockUtils.unknownAncestorsHashes(block1.getHash(), blockChain, store);
    Assert.assertNotNull(hashes);
    Assert.assertTrue(hashes.isEmpty());
    hashes = BlockUtils.unknownAncestorsHashes(block1b.getHash(), blockChain, store);
    Assert.assertNotNull(hashes);
    Assert.assertTrue(hashes.isEmpty());
    hashes = BlockUtils.unknownAncestorsHashes(block2.getHash(), blockChain, store);
    Assert.assertNotNull(hashes);
    Assert.assertFalse(hashes.isEmpty());
    Assert.assertEquals(1, hashes.size());
    Assert.assertTrue(hashes.contains(block2.getHash()));
    hashes = BlockUtils.unknownAncestorsHashes(block3.getHash(), blockChain, store);
    Assert.assertNotNull(hashes);
    Assert.assertFalse(hashes.isEmpty());
    Assert.assertEquals(3, hashes.size());
    Assert.assertTrue(hashes.contains(block2.getHash()));
    Assert.assertTrue(hashes.contains(uncle1.getHash()));
    Assert.assertTrue(hashes.contains(uncle2.getHash()));
}