Examples with Log org.hyperledger.besu.evm.log.Log used on opensource projects

Example 21 with Log

use of org.hyperledger.besu.evm.log.Log in project besu by hyperledger.

the class ChainForTestCreator method prepareHeader.

public static BlockHeader prepareHeader(final long number, final Optional<String> message) {
    final Address testAddress = Address.fromHexString(message.orElse(String.format("%02X", number)));
    final Bytes testMessage = Bytes.fromHexString(String.format("%02X", number));
    final Log testLog = new Log(testAddress, testMessage, List.of());
    return new BlockHeader(Hash.EMPTY, Hash.EMPTY, Address.ZERO, Hash.EMPTY, Hash.EMPTY, Hash.EMPTY, LogsBloomFilter.builder().insertLog(testLog).build(), Difficulty.ZERO, number, 0, 0, 0, Bytes.EMPTY, null, Hash.EMPTY, 0, new MainnetBlockHeaderFunctions());
}

Example 22 with Log

use of org.hyperledger.besu.evm.log.Log in project besu by hyperledger.

the class LogOperation method execute.

@Override
public OperationResult execute(final MessageFrame frame, final EVM evm) {
    final long dataLocation = clampedToLong(frame.popStackItem());
    final long numBytes = clampedToLong(frame.popStackItem());
    final long cost = gasCalculator().logOperationGasCost(frame, dataLocation, numBytes, numTopics);
    if (frame.isStatic()) {
        return new OperationResult(OptionalLong.of(cost), Optional.of(ExceptionalHaltReason.ILLEGAL_STATE_CHANGE));
    } else if (frame.getRemainingGas() < cost) {
        return new OperationResult(OptionalLong.of(cost), Optional.of(ExceptionalHaltReason.INSUFFICIENT_GAS));
    }
    final Address address = frame.getRecipientAddress();
    final Bytes data = frame.readMemory(dataLocation, numBytes);
    final ImmutableList.Builder<LogTopic> builder = ImmutableList.builderWithExpectedSize(numTopics);
    for (int i = 0; i < numTopics; i++) {
        builder.add(LogTopic.create(leftPad(frame.popStackItem())));
    }
    frame.addLog(new Log(address, data, builder.build()));
    return new OperationResult(OptionalLong.of(cost), Optional.empty());
}

Example 23 with Log

use of org.hyperledger.besu.evm.log.Log in project besu by hyperledger.

the class CreateOperationTest method createFromMemoryMutationSafe.

@Test
public void createFromMemoryMutationSafe() {
    // Given:  Execute a CREATE operation with a contract that logs in the constructor
    final UInt256 memoryOffset = UInt256.fromHexString("0xFF");
    final UInt256 memoryLength = UInt256.valueOf(SIMPLE_CREATE.size());
    final ArrayDeque<MessageFrame> messageFrameStack = new ArrayDeque<>();
    final MessageFrame messageFrame = testMemoryFrame(memoryOffset, memoryLength, UInt256.ZERO, 1, messageFrameStack);
    when(account.getMutable()).thenReturn(mutableAccount);
    when(account.getNonce()).thenReturn(55L);
    when(mutableAccount.getBalance()).thenReturn(Wei.ZERO);
    when(worldUpdater.getAccount(any())).thenReturn(account);
    when(worldUpdater.get(any())).thenReturn(account);
    when(worldUpdater.getSenderAccount(any())).thenReturn(account);
    when(worldUpdater.getOrCreate(any())).thenReturn(newAccount);
    when(newAccount.getMutable()).thenReturn(newMutableAccount);
    when(newMutableAccount.getCode()).thenReturn(Bytes.EMPTY);
    when(worldUpdater.updater()).thenReturn(worldUpdater);
    final EVM evm = MainnetEVMs.london(EvmConfiguration.DEFAULT);
    operation.execute(messageFrame, evm);
    final MessageFrame createFrame = messageFrameStack.peek();
    final ContractCreationProcessor ccp = new ContractCreationProcessor(evm.getGasCalculator(), evm, false, List.of(), 0, List.of());
    ccp.process(createFrame, OperationTracer.NO_TRACING);
    final Log log = createFrame.getLogs().get(0);
    final String calculatedTopic = log.getTopics().get(0).toUnprefixedHexString();
    assertThat(calculatedTopic).isEqualTo(TOPIC);
    // WHEN the memory that the create operation was executed from is altered.
    messageFrame.writeMemory(memoryOffset.trimLeadingZeros().toInt(), SIMPLE_CREATE.size(), Bytes.random(SIMPLE_CREATE.size()));
    // THEN the logs still have the expected topic
    final String calculatedTopicAfter = log.getTopics().get(0).toUnprefixedHexString();
    assertThat(calculatedTopicAfter).isEqualTo(TOPIC);
}

Example 24 with Log

use of org.hyperledger.besu.evm.log.Log in project besu by hyperledger.

the class LogsSubscriptionServiceTest method assertLogResultMatches.

private void assertLogResultMatches(final LogResult result, final Block block, final List<TransactionReceipt> receipts, final int txIndex, final int logIndex, final boolean isRemoved) {
    final Transaction expectedTransaction = block.getBody().getTransactions().get(txIndex);
    final Log expectedLog = receipts.get(txIndex).getLogsList().get(logIndex);
    assertThat(result.getLogIndex()).isEqualTo(Quantity.create(logIndex));
    assertThat(result.getTransactionIndex()).isEqualTo(Quantity.create(txIndex));
    assertThat(result.getBlockNumber()).isEqualTo(Quantity.create(block.getHeader().getNumber()));
    assertThat(result.getBlockHash()).isEqualTo(block.getHash().toString());
    assertThat(result.getTransactionHash()).isEqualTo(expectedTransaction.getHash().toString());
    assertThat(result.getAddress()).isEqualTo(expectedLog.getLogger().toString());
    assertThat(result.getData()).isEqualTo(expectedLog.getData().toString());
    assertThat(result.getTopics()).isEqualTo(expectedLog.getTopics().stream().map(Bytes::toString).collect(Collectors.toList()));
    assertThat(result.isRemoved()).isEqualTo(isRemoved);
}

Example 25 with Log

use of org.hyperledger.besu.evm.log.Log in project besu by hyperledger.

the class LogsSubscriptionServiceTest method generateBlock.

private BlockWithReceipts generateBlock(final BlockHeader parentHeader, final int txCount, final Supplier<List<Log>> logsSupplier) {
    final List<TransactionReceipt> receipts = new ArrayList<>();
    final List<Log> logs = new ArrayList<>();
    final BlockOptions blockOptions = BlockOptions.create();
    for (int i = 0; i < txCount; i++) {
        final Transaction tx = gen.transaction();
        final TransactionReceipt receipt = gen.receipt(logsSupplier.get());
        receipts.add(receipt);
        receipt.getLogsList().forEach(logs::add);
        blockOptions.addTransaction(tx);
    }
    blockOptions.setParentHash(parentHeader.getHash());
    blockOptions.setBlockNumber(parentHeader.getNumber() + 1L);
    final Block block = gen.block(blockOptions);
    return new BlockWithReceipts(block, receipts);
}