Examples with DifficultyCalculator org.hyperledger.besu.ethereum.mainnet.DifficultyCalculator used on opensource projects

Example 1 with DifficultyCalculator

use of org.hyperledger.besu.ethereum.mainnet.DifficultyCalculator in project besu by hyperledger.

the class AbstractBlockCreator method createPendingBlockHeader.

private ProcessableBlockHeader createPendingBlockHeader(final long timestamp, final Optional<Bytes32> maybePrevRandao) {
    final long newBlockNumber = parentHeader.getNumber() + 1;
    long gasLimit = protocolSpec.getGasLimitCalculator().nextGasLimit(parentHeader.getGasLimit(), targetGasLimitSupplier.get().orElse(parentHeader.getGasLimit()), newBlockNumber);
    final DifficultyCalculator difficultyCalculator = protocolSpec.getDifficultyCalculator();
    final BigInteger difficulty = difficultyCalculator.nextDifficulty(timestamp, parentHeader, protocolContext);
    final Wei baseFee = Optional.of(protocolSpec.getFeeMarket()).filter(FeeMarket::implementsBaseFee).map(BaseFeeMarket.class::cast).map(feeMarket -> feeMarket.computeBaseFee(newBlockNumber, parentHeader.getBaseFee().orElse(Wei.ZERO), parentHeader.getGasUsed(), feeMarket.targetGasUsed(parentHeader))).orElse(null);
    final Bytes32 prevRandao = maybePrevRandao.orElse(null);
    return BlockHeaderBuilder.create().parentHash(parentHeader.getHash()).coinbase(coinbase).difficulty(Difficulty.of(difficulty)).number(newBlockNumber).gasLimit(gasLimit).timestamp(timestamp).baseFee(baseFee).prevRandao(prevRandao).buildProcessableBlockHeader();
}