Method ForkProcess

Source/CTest/cmCTestRunTest.cxx:771–902

}

bool cmCTestRunTest::ForkProcess()
{
  this->TestProcess->SetId(this->Index);
  this->TestProcess->SetWorkingDirectory(this->TestProperties->Directory);
  this->TestProcess->SetCommand(this->ActualCommand);
  this->TestProcess->SetCommandArguments(this->Arguments);

  cm::optional<cmDuration> timeout;

  // Check TIMEOUT test property.
  if (this->TestProperties->Timeout &&
      *this->TestProperties->Timeout >= cmDuration::zero()) {
    timeout = this->TestProperties->Timeout;
  }

  // An explicit TIMEOUT=0 test property means "no timeout".
  if (timeout) {
    if (*timeout == std::chrono::duration<double>::zero()) {
      timeout = cm::nullopt;
    }
  } else {
    // Check --timeout.
    if (this->CTest->GetGlobalTimeout() > cmDuration::zero()) {
      timeout = this->CTest->GetGlobalTimeout();
    }

    if (!timeout) {
      // Check CTEST_TEST_TIMEOUT.
      cmDuration ctestTestTimeout = this->CTest->GetTimeOut();
      if (ctestTestTimeout > cmDuration::zero()) {
        timeout = ctestTestTimeout;
      }
    }
  }

  // Check CTEST_TIME_LIMIT.
  cmDuration timeRemaining = this->CTest->GetRemainingTimeAllowed();
  if (timeRemaining != cmCTest::MaxDuration()) {
    // This two minute buffer is historical.
    timeRemaining -= std::chrono::minutes(2);
  }

  // Check --stop-time.
  std::chrono::system_clock::time_point stop_time = this->CTest->GetStopTime();
  if (stop_time != std::chrono::system_clock::time_point()) {
    cmDuration timeUntilStop =
      (stop_time - std::chrono::system_clock::now()) % std::chrono::hours(24);
    this->TestProcess->SetStopTimeout(timeUntilStop);
  }

  // Enforce remaining time even over explicit TIMEOUT=0.
  if (timeRemaining <= cmDuration::zero()) {
    timeRemaining = cmDuration::zero();
  }
  if (!timeout || timeRemaining < *timeout) {
    timeout = timeRemaining;
  }