Exemplo n.º 1
0
void JobManager::DoSchedule(InternalJob::Pointer job,
    Poco::Timestamp::TimeDiff delay)
{
  Poco::ScopedLock<Poco::Mutex> managerLock(m_mutex);

  //job may have been canceled already
  int state = job->InternalGetState();
  if (state != InternalJob::ABOUT_TO_SCHEDULE && state != Job::SLEEPING)
    return;

  //if it's a decoration job with no rule, don't run it right now if the system is busy
  if (job->GetPriority() == Job::DECORATE && job->GetRule() == 0)
  {
    Poco::Timestamp::TimeDiff tmp_minDelay = m_running.size() * 100;
    delay = std::max(delay, tmp_minDelay);
  }
  if (delay > 0)
  {
    job->SetStartTime(Poco::Timestamp() + delay * 100);
    InternalJob::Pointer sptr_job(job);
    ChangeState(sptr_job, Job::SLEEPING);
  }
  else
  {
    job->SetStartTime(Poco::Timestamp() + DelayFor(job->GetPriority()) * 100);
    job->SetWaitQueueStamp(m_waitQueueCounter++);
    InternalJob::Pointer sptr_job(job);
    ChangeState(sptr_job, Job::WAITING);
  }

}
Exemplo n.º 2
0
bool JobManager::IsBlocking(InternalJob::Pointer sptr_runningJob)
{
  {
    Poco::ScopedLock<Poco::Mutex> lockMe (m_mutex);
    // if this job isn't running, it can't be blocking anyone
    if (sptr_runningJob->GetState() != Job::RUNNING)
    return false;
    // if any job is queued behind this one, it is blocked by it
    InternalJob::Pointer ptr_previous = sptr_runningJob->Previous();
    while (ptr_previous != 0)
    {
      // ignore jobs of lower priority (higher priority value means lower priority)
      if (ptr_previous->GetPriority() < sptr_runningJob->GetPriority())
      {
        if (!ptr_previous->IsSystem())
        return true;
        // TODO Implicit Jobs
        // implicit jobs should interrupt unless they act on behalf of system jobs
        // if (previous instanceof ThreadJob && ((ThreadJob) previous).shouldInterrupt())
        // return true;
      }
      ptr_previous = ptr_previous->previous;
    }
    // none found
    return false;
  }
}
Exemplo n.º 3
0
void JobManager::SetPriority(InternalJob::Pointer job, int newPriority)
{
  {
    Poco::ScopedLock<Poco::Mutex> lockMe (m_mutex);
    InternalJob::Pointer sptr_job(job);
    int oldPriority = job->GetPriority();
    if (oldPriority == newPriority)
    return;
    job->InternalSetPriority(newPriority);
    //if the job is waiting to run, re-shuffle the queue
    if (sptr_job->GetState() == Job::WAITING)
    {
      Poco::Timestamp oldStart = job->GetStartTime();
      job->SetStartTime(oldStart += (DelayFor(newPriority) - DelayFor(oldPriority)));
      m_JobQueueWaiting.Resort(job);
    }
  }
}