Method UpdateCostData

Source/CTest/cmCTestMultiProcessHandler.cxx:822–875

}

void cmCTestMultiProcessHandler::UpdateCostData()
{
  std::string fname = this->CTest->GetCostDataFile();
  std::string tmpout = fname + ".tmp";
  cmsys::ofstream fout;
  fout.open(tmpout.c_str());

  PropertiesMap temp = this->Properties;

  if (cmSystemTools::FileExists(fname)) {
    cmsys::ifstream fin;
    fin.open(fname.c_str());

    std::string line;
    while (std::getline(fin, line)) {
      if (line == "---") {
        break;
      }
      // Format: <name> <previous_runs> <avg_cost>
      cm::optional<CostEntry> entry = splitCostLine(line);
      if (!entry) {
        break;
      }

      int index = this->SearchByName(entry->name);
      if (index == -1) {
        // This test is not in memory. We just rewrite the entry
        fout << entry->name << " " << entry->prevRuns << " " << entry->cost
             << "\n";
      } else {
        // Update with our new average cost
        fout << entry->name << " " << this->Properties[index]->PreviousRuns
             << " " << this->Properties[index]->Cost << "\n";
        temp.erase(index);
      }
    }
    fin.close();
    cmSystemTools::RemoveFile(fname);
  }

  // Add all tests not previously listed in the file
  for (auto const& i : temp) {
    fout << i.second->Name << " " << i.second->PreviousRuns << " "
         << i.second->Cost << "\n";
  }

  // Write list of failed tests
  fout << "---\n";
  for (std::string const& f : *this->Failed) {
    fout << f << "\n";
  }
  fout.close();
  cmSystemTools::RenameFile(tmpout, fname);
}

void cmCTestMultiProcessHandler::ReadCostData()
{