Method Write

lib/mdflib/mdflib/src/ev4block.cpp:170–224

}

uint64_t Ev4Block::Write(std::streambuf& buffer) {
  const bool update =
      FilePosition() > 0;  // Write or update the values inside the block
  if (update) {
    return block_length_;
  }
  length_m_ = static_cast<uint32_t>(scope_list_.size());
  length_n_ = static_cast<uint16_t>(attachment_list_.size());

  const auto group = !group_name_.empty();
  if (group) {
    flags_ |= 0x02;
  }
  block_type_ = "##EV";
  block_length_ =
      24 + ((5 + length_m_ + length_n_) * 8) + 5 + 3 + 4 + 2 + 2 + 8 + 8;
  if (group) {
    block_size_ += 8;
  }
  link_list_.resize(5 + length_m_ + length_n_ + (group ? 1 : 0), 0);
  link_list_[kIndexParent] =
      parent_event_ != nullptr ? parent_event_->Index() : 0;
  link_list_[kIndexRange] = range_event_ != nullptr ? range_event_->Index() : 0;
  for (size_t index_m = 0; index_m < length_m_; ++index_m) {
    const auto index = 5 + index_m;
    const auto *block = reinterpret_cast<const MdfBlock *>(scope_list_[index_m]);
    link_list_[index] = block != nullptr ? block->FilePosition() : 0;
  }
  for (size_t index_n = 0; index_n < length_n_; ++index_n) {
    const auto index = 5 + length_m_ + index_n;
    const auto *block = attachment_list_[index_n];
    link_list_[index] = block != nullptr ? block->Index() : 0;
  }
  WriteTx4(buffer, kIndexName, name_);
  if (group) {
    WriteTx4(buffer, link_list_.size() - 1, group_name_);
  }
  WriteMdComment(buffer, kIndexMd);

  uint64_t bytes = MdfBlock::Write(buffer);
  bytes += WriteNumber(buffer, type_);
  bytes += WriteNumber(buffer, sync_type_);
  bytes += WriteNumber(buffer, range_type_);
  bytes += WriteNumber(buffer, cause_);
  bytes += WriteNumber(buffer, flags_);
  bytes += WriteBytes(buffer, 3);
  bytes += WriteNumber(buffer, length_m_);
  bytes += WriteNumber(buffer, length_n_);
  bytes += WriteNumber(buffer, creator_index_);
  bytes += WriteNumber(buffer, sync_base_value_);
  bytes += WriteNumber(buffer, sync_factor_);
  UpdateBlockSize(buffer, bytes);

  return bytes;
}

int64_t Ev4Block::Index() const { return FilePosition(); }