C++ BinaryArray::size方法代码示例

bool RpcServer::on_get_transactions(const COMMAND_RPC_GET_TRANSACTIONS::request& req, COMMAND_RPC_GET_TRANSACTIONS::response& res) {
  std::vector<Hash> vh;
  for (const auto& tx_hex_str : req.txs_hashes) {
    BinaryArray b;
    if (!fromHex(tx_hex_str, b))
    {
      res.status = "Failed to parse hex representation of transaction hash";
      return true;
    }
    if (b.size() != sizeof(Hash))
    {
      res.status = "Failed, size of data mismatch";
    }
    vh.push_back(*reinterpret_cast<const Hash*>(b.data()));
  }
  std::list<Hash> missed_txs;
  std::list<Transaction> txs;
  m_core.getTransactions(vh, txs, missed_txs);

  for (auto& tx : txs) {
    res.txs_as_hex.push_back(toHex(toBinaryArray(tx)));
  }

  for (const auto& miss_tx : missed_txs) {
    res.missed_tx.push_back(Common::podToHex(miss_tx));
  }

  res.status = CORE_RPC_STATUS_OK;
  return true;
}

bool BaseFunctionalTests::prepareAndSubmitBlock(TestNode& node, CryptoNote::Block&& blockTemplate) {
  blockTemplate.timestamp = m_nextTimestamp;
  m_nextTimestamp += 2 * m_currency.difficultyTarget();

  BinaryArray blockBlob = CryptoNote::toBinaryArray(blockTemplate);
  return node.submitBlock(::Common::toHex(blockBlob.data(), blockBlob.size()));
}

bool addExtraNonceToTransactionExtra(std::vector<uint8_t>& tx_extra, const BinaryArray& extra_nonce) {
  if (extra_nonce.size() > TX_EXTRA_NONCE_MAX_COUNT) {
    return false;
  }

  size_t start_pos = tx_extra.size();
  tx_extra.resize(tx_extra.size() + 2 + extra_nonce.size());
  //write tag
  tx_extra[start_pos] = TX_EXTRA_NONCE;
  //write len
  ++start_pos;
  tx_extra[start_pos] = static_cast<uint8_t>(extra_nonce.size());
  //write data
  ++start_pos;
  memcpy(&tx_extra[start_pos], extra_nonce.data(), extra_nonce.size());
  return true;
}

bool parseAndValidateTransactionFromBinaryArray(const BinaryArray& tx_blob, Transaction& tx, Hash& tx_hash, Hash& tx_prefix_hash) {
  if (!fromBinaryArray(tx, tx_blob)) {
    return false;
  }

  //TODO: validate tx
  cn_fast_hash(tx_blob.data(), tx_blob.size(), tx_hash);
  getObjectHash(*static_cast<TransactionPrefix*>(&tx), tx_prefix_hash);
  return true;
}

void LevinProtocol::sendReply(uint32_t command, const BinaryArray& out, int32_t returnCode) {
  bucket_head2 head = { 0 };
  head.m_signature = LEVIN_SIGNATURE;
  head.m_cb = out.size();
  head.m_have_to_return_data = false;
  head.m_command = command;
  head.m_protocol_version = LEVIN_PROTOCOL_VER_1;
  head.m_flags = LEVIN_PACKET_RESPONSE;
  head.m_return_code = returnCode;

  BinaryArray writeBuffer;
  writeBuffer.reserve(sizeof(head) + out.size());

  Common::VectorOutputStream stream(writeBuffer);
  stream.writeSome(&head, sizeof(head));
  stream.writeSome(out.data(), out.size());

  writeStrict(writeBuffer.data(), writeBuffer.size());
}

void LevinProtocol::sendMessage(uint32_t command, const BinaryArray& out, bool needResponse) {
  bucket_head2 head = { 0 };
  head.m_signature = LEVIN_SIGNATURE;
  head.m_cb = out.size();
  head.m_have_to_return_data = needResponse;
  head.m_command = command;
  head.m_protocol_version = LEVIN_PROTOCOL_VER_1;
  head.m_flags = LEVIN_PACKET_REQUEST;

  // write header and body in one operation
  BinaryArray writeBuffer;
  writeBuffer.reserve(sizeof(head) + out.size());

  Common::VectorOutputStream stream(writeBuffer);
  stream.writeSome(&head, sizeof(head));
  stream.writeSome(out.data(), out.size());

  writeStrict(writeBuffer.data(), writeBuffer.size());
}

bool append_message_to_extra(std::vector<uint8_t>& tx_extra, const tx_extra_message& message) {
  BinaryArray blob;
  if (!toBinaryArray(message, blob)) {
    return false;
  }

  tx_extra.reserve(tx_extra.size() + 1 + blob.size());
  tx_extra.push_back(TX_EXTRA_MESSAGE_TAG);
  std::copy(reinterpret_cast<const uint8_t*>(blob.data()), reinterpret_cast<const uint8_t*>(blob.data() + blob.size()), std::back_inserter(tx_extra));

  return true;
}

bool get_block_longhash(cn_context &context, const Block& b, Hash& res) {
  BinaryArray bd;
  if (b.majorVersion == BLOCK_MAJOR_VERSION_1 || b.majorVersion >= BLOCK_MAJOR_VERSION_4) {
    if (!get_block_hashing_blob(b, bd)) {
      return false;
    }
  } else if (b.majorVersion == BLOCK_MAJOR_VERSION_2 || b.majorVersion == BLOCK_MAJOR_VERSION_3) {
    if (!get_parent_block_hashing_blob(b, bd)) {
      return false;
    }
  } else {
    return false;
  }
  cn_slow_hash(context, bd.data(), bd.size(), res);
  return true;
}

bool BaseFunctionalTests::prepareAndSubmitBlock(TestNode& node, CryptoNote::Block&& blockTemplate) {
  blockTemplate.timestamp = m_nextTimestamp;
  m_nextTimestamp += 2 * m_currency.difficultyTarget();

  if (blockTemplate.majorVersion >= BLOCK_MAJOR_VERSION_2) {
    blockTemplate.parentBlock.majorVersion = BLOCK_MAJOR_VERSION_1;
    blockTemplate.parentBlock.minorVersion = BLOCK_MINOR_VERSION_0;
    blockTemplate.parentBlock.transactionCount = 1;

    CryptoNote::TransactionExtraMergeMiningTag mmTag;
    mmTag.depth = 0;
    if (!CryptoNote::get_aux_block_header_hash(blockTemplate, mmTag.merkleRoot)) {
      return false;
    }

    blockTemplate.parentBlock.baseTransaction.extra.clear();
    if (!CryptoNote::appendMergeMiningTagToExtra(blockTemplate.parentBlock.baseTransaction.extra, mmTag)) {
      return false;
    }
  }

  BinaryArray blockBlob = CryptoNote::toBinaryArray(blockTemplate);
  return node.submitBlock(::Common::toHex(blockBlob.data(), blockBlob.size()));
}

bool gen_block_invalid_binary_format::generate(std::vector<test_event_entry>& events) const
{
  BLOCK_VALIDATION_INIT_GENERATE();

  std::vector<uint64_t> timestamps;
  std::vector<difficulty_type> cummulative_difficulties;
  difficulty_type cummulative_diff = 1;

  // Unlock blk_0 outputs
  Block blk_last = blk_0;
  assert(m_currency.minedMoneyUnlockWindow() < m_currency.difficultyWindow());
  for (size_t i = 0; i < m_currency.minedMoneyUnlockWindow(); ++i)
  {
    MAKE_NEXT_BLOCK(events, blk_curr, blk_last, miner_account);
    timestamps.push_back(blk_curr.timestamp);
    cummulative_difficulties.push_back(++cummulative_diff);
    blk_last = blk_curr;
  }

  // Lifting up takes a while
  difficulty_type diffic;
  do
  {
    blk_last = boost::get<Block>(events.back());
    diffic = m_currency.nextDifficulty(timestamps, cummulative_difficulties);
    if (!lift_up_difficulty(m_currency, events, timestamps, cummulative_difficulties, generator, 1, blk_last,
      miner_account, BLOCK_MAJOR_VERSION_1)) {
      return false;
    }
    std::cout << "Block #" << events.size() << ", difficulty: " << diffic << std::endl;
  }
  while (diffic < 1500);

  blk_last = boost::get<Block>(events.back());
  MAKE_TX(events, tx_0, miner_account, miner_account, MK_COINS(120), boost::get<Block>(events[1]));
  DO_CALLBACK(events, "corrupt_blocks_boundary");

  Block blk_test;
  std::vector<Crypto::Hash> tx_hashes;
  tx_hashes.push_back(getObjectHash(tx_0));
  size_t txs_size = getObjectBinarySize(tx_0);
  diffic = m_currency.nextDifficulty(timestamps, cummulative_difficulties);
  if (!generator.constructBlockManually(blk_test, blk_last, miner_account,
    test_generator::bf_major_ver | test_generator::bf_diffic | test_generator::bf_timestamp | test_generator::bf_tx_hashes, 
    BLOCK_MAJOR_VERSION_1, 0, blk_last.timestamp, Crypto::Hash(), diffic, Transaction(), tx_hashes, txs_size))
    return false;

  BinaryArray blob = toBinaryArray(blk_test);
  for (size_t i = 0; i < blob.size(); ++i)
  {
    for (size_t bit_idx = 0; bit_idx < sizeof(BinaryArray::value_type) * 8; ++bit_idx)
    {
      serialized_block sr_block(blob);
      BinaryArray::value_type& ch = sr_block.data[i];
      ch ^= 1 << bit_idx;

      events.push_back(sr_block);
    }
  }

  DO_CALLBACK(events, "check_all_blocks_purged");

  return true;
}

void getBinaryArrayHash(const BinaryArray& binaryArray, Crypto::Hash& hash) {
  cn_fast_hash(binaryArray.data(), binaryArray.size(), hash);
}

bool appendMergeMiningTagToExtra(std::vector<uint8_t>& tx_extra, const TransactionExtraMergeMiningTag& mm_tag) {
  BinaryArray blob;
  if (!toBinaryArray(mm_tag, blob)) {
    return false;
  }

  tx_extra.push_back(TX_EXTRA_MERGE_MINING_TAG);
  std::copy(reinterpret_cast<const uint8_t*>(blob.data()), reinterpret_cast<const uint8_t*>(blob.data() + blob.size()), std::back_inserter(tx_extra));
  return true;
}