mirror of https://github.com/hyperledger/besu
Added IBFT Proposed block creation classes (#169)
IBFT requires various aspects of the mining infrastructure in order to create a proposed block. This includes specifically the BlockCreator and MiningCoordinating, the mining executor is not required at this stage, nor is the miner.
tmohay
6 years ago
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GitHub
parent
481e17d5fa
commit
7b2621060e
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/* |
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* Copyright 2018 ConsenSys AG. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on |
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* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the |
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* specific language governing permissions and limitations under the License. |
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*/ |
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package tech.pegasys.pantheon.consensus.common; |
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import tech.pegasys.pantheon.util.bytes.BytesValue; |
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import tech.pegasys.pantheon.util.bytes.BytesValues; |
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public class ConsensusHelpers { |
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public static BytesValue zeroLeftPad(final BytesValue input, final int requiredLength) { |
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final int paddingByteCount = Math.max(0, requiredLength - input.size()); |
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return BytesValues.concatenate(BytesValue.wrap(new byte[paddingByteCount]), input) |
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.slice(0, requiredLength); |
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} |
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} |
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/* |
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* Copyright 2018 ConsenSys AG. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on |
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* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the |
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* specific language governing permissions and limitations under the License. |
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*/ |
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package tech.pegasys.pantheon.consensus.ibft.blockcreation; |
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import tech.pegasys.pantheon.consensus.common.ConsensusHelpers; |
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import tech.pegasys.pantheon.consensus.common.ValidatorVote; |
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import tech.pegasys.pantheon.consensus.common.VoteTally; |
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import tech.pegasys.pantheon.consensus.ibft.IbftContext; |
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import tech.pegasys.pantheon.consensus.ibft.IbftExtraData; |
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import tech.pegasys.pantheon.consensus.ibft.Vote; |
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import tech.pegasys.pantheon.ethereum.ProtocolContext; |
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import tech.pegasys.pantheon.ethereum.core.Address; |
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import tech.pegasys.pantheon.ethereum.core.BlockHeader; |
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import tech.pegasys.pantheon.ethereum.core.MiningParameters; |
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import tech.pegasys.pantheon.ethereum.core.PendingTransactions; |
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import tech.pegasys.pantheon.ethereum.core.Wei; |
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import tech.pegasys.pantheon.ethereum.mainnet.ProtocolSchedule; |
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import tech.pegasys.pantheon.util.bytes.BytesValue; |
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import java.util.ArrayList; |
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import java.util.Collections; |
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import java.util.List; |
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import java.util.Optional; |
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import java.util.function.Function; |
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public class IbftBlockCreatorFactory { |
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private final Function<Long, Long> gasLimitCalculator; |
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private final PendingTransactions pendingTransactions; |
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protected final ProtocolContext<IbftContext> protocolContext; |
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protected final ProtocolSchedule<IbftContext> protocolSchedule; |
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private final Address localAddress; |
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private volatile BytesValue vanityData; |
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private volatile Wei minTransactionGasPrice; |
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public IbftBlockCreatorFactory( |
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final Function<Long, Long> gasLimitCalculator, |
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final PendingTransactions pendingTransactions, |
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final ProtocolContext<IbftContext> protocolContext, |
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final ProtocolSchedule<IbftContext> protocolSchedule, |
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final MiningParameters miningParams, |
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final Address localAddress) { |
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this.gasLimitCalculator = gasLimitCalculator; |
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this.pendingTransactions = pendingTransactions; |
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this.protocolContext = protocolContext; |
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this.protocolSchedule = protocolSchedule; |
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this.localAddress = localAddress; |
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this.minTransactionGasPrice = miningParams.getMinTransactionGasPrice(); |
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this.vanityData = miningParams.getExtraData(); |
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} |
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public IbftBlockCreator create(final BlockHeader parentHeader, final int round) { |
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return new IbftBlockCreator( |
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localAddress, |
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ph -> createExtraData(round), |
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pendingTransactions, |
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protocolContext, |
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protocolSchedule, |
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gasLimitCalculator, |
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minTransactionGasPrice, |
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parentHeader); |
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} |
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public void setExtraData(final BytesValue extraData) { |
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this.vanityData = extraData.copy(); |
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} |
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public void setMinTransactionGasPrice(final Wei minTransactionGasPrice) { |
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this.minTransactionGasPrice = minTransactionGasPrice.copy(); |
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} |
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public Wei getMinTransactionGasPrice() { |
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return minTransactionGasPrice; |
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} |
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public BytesValue createExtraData(final int round) { |
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final VoteTally voteTally = protocolContext.getConsensusState().getVoteTally(); |
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final Optional<ValidatorVote> proposal = |
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protocolContext.getConsensusState().getVoteProposer().getVote(localAddress, voteTally); |
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final List<Address> validators = new ArrayList<>(voteTally.getCurrentValidators()); |
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final IbftExtraData extraData = |
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new IbftExtraData( |
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ConsensusHelpers.zeroLeftPad(vanityData, IbftExtraData.EXTRA_VANITY_LENGTH), |
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Collections.emptyList(), |
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toVote(proposal), |
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round, |
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validators); |
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return extraData.encode(); |
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} |
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private static Optional<Vote> toVote(final Optional<ValidatorVote> input) { |
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return input |
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.map(v -> Optional.of(new Vote(v.getRecipient(), v.getVotePolarity()))) |
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.orElse(Optional.empty()); |
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} |
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} |
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@ -0,0 +1,50 @@ |
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/* |
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* Copyright 2018 ConsenSys AG. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on |
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* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the |
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* specific language governing permissions and limitations under the License. |
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*/ |
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package tech.pegasys.pantheon.consensus.ibft.blockcreation; |
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import tech.pegasys.pantheon.ethereum.blockcreation.MiningCoordinator; |
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import tech.pegasys.pantheon.ethereum.core.Wei; |
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import tech.pegasys.pantheon.util.bytes.BytesValue; |
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public class IbftMiningCoordinator implements MiningCoordinator { |
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private final IbftBlockCreatorFactory blockCreatorFactory; |
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public IbftMiningCoordinator(final IbftBlockCreatorFactory blockCreatorFactory) { |
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this.blockCreatorFactory = blockCreatorFactory; |
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} |
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@Override |
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public void enable() {} |
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@Override |
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public void disable() {} |
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@Override |
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public boolean isRunning() { |
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return true; |
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} |
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@Override |
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public void setMinTransactionGasPrice(final Wei minGasPrice) {} |
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@Override |
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public Wei getMinTransactionGasPrice() { |
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return null; |
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} |
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@Override |
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public void setExtraData(final BytesValue extraData) { |
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blockCreatorFactory.setExtraData(extraData); |
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} |
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} |
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