Beispiel #1
0
Job::Pointer JobManager::StartJob()
{
  Job::Pointer job(nullptr);
  while (true)
  {
    job = NextJob();
    if (!job)
    return Job::Pointer(nullptr);
    //must perform this outside sync block because it is third party code
    bool shouldRun = job->ShouldRun();
    //check for listener veto
    if (shouldRun)
    m_JobListeners.AboutToRun(job);
    //listeners may have canceled or put the job to sleep
    bool endJob = false;
    {
      Poco::ScopedLock<Poco::Mutex> lock(m_mutex);
      InternalJob::Pointer internal = job;
      if (internal->InternalGetState() == InternalJob::ABOUT_TO_RUN)
      {
        if (shouldRun && !internal->IsAboutToRunCanceled())
        {
          internal->SetProgressMonitor(CreateMonitor(job));
          //change from ABOUT_TO_RUN to RUNNING
          internal->InternalSetState(Job::RUNNING);
          break;
        }
        internal->SetAboutToRunCanceled(false);
        endJob = true;
        //fall through and end the job below
      }
    }
    if (endJob)
    {
      //job has been vetoed or canceled, so mark it as done
      EndJob(job,Status::CANCEL_STATUS(BERRY_STATUS_LOC), true);
      continue;
    }
  }
  m_JobListeners.Running(job);
  return job;
}
Beispiel #2
0
void JobManager::ChangeState(InternalJob::Pointer sptr_job, int newState)
{

  bool blockedJobs = false;
  {
    Poco::ScopedLock<Poco::Mutex> m_managerLock(m_mutex);

    int tmp_oldState = sptr_job->InternalGetState();
    switch (tmp_oldState)
    {
    case Job::NONE:

    case InternalJob::ABOUT_TO_SCHEDULE:
      break;
    case InternalJob::BLOCKED:
      //remove this job from the linked list of blocked jobs
      sptr_job->Remove();
      break;
    case Job::WAITING:
      m_JobQueueWaiting.Remove(sptr_job);

      // assert(false, "Tried to remove a job that wasn't in the queue");
      break;
    case Job::SLEEPING:
      m_JobQueueSleeping.Remove(sptr_job);
      // assert(false, "Tried to remove a job that wasn't in the queue");

    case Job::RUNNING:
    case InternalJob::ABOUT_TO_RUN:
      m_running.remove(sptr_job);
      //add any blocked jobs back to the wait queue
      InternalJob::Pointer sptr_blocked(sptr_job->Previous());
      sptr_job->Remove();
      blockedJobs = sptr_blocked != 0;
      while (sptr_blocked != 0)
      {
        InternalJob::Pointer previous = sptr_blocked->Previous();
        ChangeState(sptr_blocked, Job::WAITING);
        sptr_blocked = previous;
      }
      break;
      // default :
      // Assert.isLegal(false, "Invalid job state: " + job + ", state: " + oldState);
    }

    sptr_job->InternalSetState(newState);
    switch (newState)
    {
    case Job::NONE:
      sptr_job->SetStartTime(InternalJob::T_NONE);
      sptr_job->SetWaitQueueStamp(InternalJob::T_NONE);
    case InternalJob::BLOCKED:
      break;
    case Job::WAITING:
      m_JobQueueWaiting.Enqueue(sptr_job);
      break;
    case Job::SLEEPING:
      //try {
      m_JobQueueSleeping.Enqueue(sptr_job);
      //} catch (RuntimeException e) {
      //  throw new RuntimeException("Error changing from state: " + oldState);
      //}
      break;
    case Job::RUNNING:
    case InternalJob::ABOUT_TO_RUN:
      sptr_job->SetStartTime(InternalJob::T_NONE);
      sptr_job->SetWaitQueueStamp(InternalJob::T_NONE);
      m_running.insert(sptr_job);
      break;
    case InternalJob::ABOUT_TO_SCHEDULE:
      break;
      //  default :
      //    Assert.isLegal(false, "Invalid job state: " + job + ", state: " + newState);
    }
  }

  //notify queue outside sync block
  if (blockedJobs)
    m_Pool->JobQueued();
}