/// <summary>
/// Enqueue unprioritized backround job, maintenance job maybe
/// </summary>
/// <param name="job"></param>
public void DoNonpiorityJob(PlanItem job)
{
lock (OnceJobs)
{
OnceJobs.Add(job);
}
}
static void IsolatedThreadEntry(object o)
{
ThreadContext ti = o as ThreadContext;
ti.ManagedID = ti.hThread.ManagedThreadId;
PlanItem pi = ti.Job;
pi.JobEntry(ti, pi);
ExitThread(ti);
}
private int TaskEntry(TaskScheduler.ThreadContext ti, TaskScheduler.PlanItem pi)
{
// TODO: remove this method , replace that routing to task registration
QueueTask task = pi as QueueTask;
switch (task.Module.Role)
{
case ExecutionType.Consumer:
return ConsumerEntry(task);
break;
case ExecutionType.Producer:
return ProducerEntry(task);
break;
}
return 1;
}
public void CreateIsolatedThreadForPlan(PlanItem pi)
{
if (pi.intervalType == IntervalType.isolatedThread)
{
Thread thread = new Thread(new ParameterizedThreadStart(IsolatedThreadEntry));
thread.Name = "TaskScheduler IsolatedThread#" + threads.Count.ToString() + " (" + pi.NameAndDescription + ")";
ThreadContext ti = new ThreadContext()
{
hThread = thread,
rootPlan = plan,
Job = pi,
Isolated = true
};
thread.Start(ti);
threads.Add(ti);
}
}
private int TaskEntry(TaskScheduler.ThreadContext ti, TaskScheduler.PlanItem pi)
{
QueueTask task = pi as QueueTask;
switch (task.Module.Role)
{
case ExecutionType.Consumer:
return(ConsumerEntry(task));
break;
case ExecutionType.Producer:
return(ProducerEntry(task));
break;
}
return(1);
}
private int IsolatedTaskEntry(TaskScheduler.ThreadContext ti, TaskScheduler.PlanItem pi)
{
QueueTask task = pi as QueueTask;
try
{
((IModIsolatedProducer)task.Module.MI).IsolatedProducer(task.Parameters);
}
catch (Exception e)
{
logger.Exception(e, "isolated call procedure", "module '{0}' will be turned off", task.ModuleName);
ti.StopThread = true;
}
//task.Module.Producer(task.Parameters);
while (!ti.StopThread)
{
System.Threading.Thread.Sleep(100);
}
((IModIsolatedProducer)task.Module.MI).IsolatedProducerStop();
return 1;
}
private int BeforeNextMs()
{
lock (PlanComponents)
{
var n = from i in PlanComponents
where !i.Suspended && i.intervalType != IntervalType.isolatedThread &&
!i.ExucutingNow && i.MillisecondsBeforeExecute() > 0
orderby i.LAMS
select i;
PlanItem Next = n.FirstOrDefault();
if (Next == null)
{
return(1000);// default wait 1 sec
}
else
{
return((int)Next.LAMS);
}
}
}
private int BeforeNextSec()
{
lock (PlanComponents)
{
var n = from i in PlanComponents
//where !i.Suspended && i.intervalType != IntervalType.isolatedThread &&
//!i.ExucutingNow && i.SecondsBeforeExecute() > 0
where !i.Suspended && i.intervalType > IntervalType.withoutInterval &&
!i.ExucutingNow && i.SecondsBeforeExecute() > 0
orderby i.LAMS
select i;
PlanItem NextJob = n.FirstOrDefault();
if (NextJob == null)
{
return(1);// default wait 1 sec
}
else
{
return((int)NextJob.LAMS);
}
}
}
public PlanItem Next(bool wait)
{
PlanItem Dequeued = null;
lock (CurrentPlanQueue)
{
bool planNotEmpty = CurrentPlanQueue.Length > CPQueueCursor;
if (planNotEmpty)
{
Dequeued = CurrentPlanQueue[CPQueueCursor];
CPQueueCursor++;
}
else
{
PlanItem[] jnewcmpnts = null;
PlanItem[] newcmpnts = null;
lock (OnceJobs)
{
if (OnceJobs.Count > 0)
{
jnewcmpnts = OnceJobs.ToArray();
OnceJobs.Clear();
}
}
if (jnewcmpnts != null)// deferred jobs found, refill with plan
{
PlanItem[] Pnewcmpnts = OrderComponents();
newcmpnts = new PlanItem[jnewcmpnts.Length + Pnewcmpnts.Length];
Array.Copy(jnewcmpnts, newcmpnts, jnewcmpnts.Length);
Array.Copy(Pnewcmpnts, 0, newcmpnts, jnewcmpnts.Length, Pnewcmpnts.Length);
}
else// deferred jobs not found, try to refill plan
{
newcmpnts = OrderComponents();
}
planNotEmpty = newcmpnts.Length > 0;
if (planNotEmpty)
{
if (newcmpnts.Length > 1)
{
// populate queue
PopulateQueue(newcmpnts);// let wait handled thread do that with race for job
}
else
{
Dequeued = newcmpnts[0];// this thread has exclusive access without race for job
}
}
else
{
Dequeued = null;// plan is empty
}
}
}
if (Dequeued != null)
{
lock (PlanComponents)
{
Dequeued.SetStartExecution();
}
}
else if (wait)
{
// check if we have a job to wait
int waitms = this.BeforeNextMs();
if (waitms > 0)
{
refilled.WaitOne(waitms);
}
Dequeued = this.Next(false);
}
return Dequeued;
}
private void PopulateQueue(PlanItem[] p)
{
CurrentPlanQueue = p;
CPQueueCursor = 0;
refilled.Set();
}
public PlanItem Next(bool wait)
{
PlanItem Dequeued = null;
lock (CurrentPlanQueue)
{
bool planNotEmpty = CurrentPlanQueue.Length > CPQueueCursor;
if (planNotEmpty)
{
Dequeued = CurrentPlanQueue[CPQueueCursor];
CPQueueCursor++;
}
else
{
PlanItem[] jnewcmpnts = null;
PlanItem[] newcmpnts = null;
lock (OnceJobs)
{
if (OnceJobs.Count > 0)
{
jnewcmpnts = OnceJobs.ToArray();
OnceJobs.Clear();
}
}
if (jnewcmpnts != null)// deferred jobs found, refill with plan
{
PlanItem[] Pnewcmpnts = OrderComponents();
newcmpnts = new PlanItem[jnewcmpnts.Length + Pnewcmpnts.Length];
Array.Copy(jnewcmpnts, newcmpnts, jnewcmpnts.Length);
Array.Copy(Pnewcmpnts, 0, newcmpnts, jnewcmpnts.Length, Pnewcmpnts.Length);
}
else// deferred jobs not found, try to refill plan
{
newcmpnts = OrderComponents();
}
planNotEmpty = newcmpnts.Length > 0;
if (planNotEmpty)
{
if (newcmpnts.Length > 1)
{
// populate queue
PopulateQueue(newcmpnts);// let wait handled thread do that with race for job
}
else
{
Dequeued = newcmpnts[0];// this thread has exclusive access without race for job
}
}
else
{
Dequeued = null;// plan is empty
}
}
}
if (Dequeued != null)
{
lock (PlanComponents)
{
Dequeued.SetStartExecution();
}
}
else if (wait)
{
// check if we have a job to wait
int waitms = this.BeforeNextMs();
if (waitms > 0)
{
refilled.WaitOne(waitms);
}
Dequeued = this.Next(false);
}
return(Dequeued);
}
public void DeferJob(PlanItem job)
{
plan.DoNonpiorityJob(job);
}
public void CreateIsolatedThreadForPlan(PlanItem pi)
{
if (pi.intervalType == IntervalType.isolatedThread)
{
Thread thread = new Thread(new ParameterizedThreadStart(IsolatedThreadEntry));
thread.Name = "TaskScheduler IsolatedThread#" + pi.NameAndDescription;
ThreadContext ti = new ThreadContext()
{
hThread = thread,
rootPlan = plan,
Job = pi,
Isolated = true
};
thread.Start(ti);
threads.Add(ti);
}
}
public void DeferJob(PlanItem job)
{
plan.DoNonpiorityJob(job);
}
public PlanItem Next(bool wait)
{
PlanItem Dequeued = null;
lock (InstantPlanQueue)
{
if (InstantPlanQueue.Length > InstantPQueueCursor)
{
Dequeued = InstantPlanQueue[InstantPQueueCursor];
if (!Dequeued.ExucutingNow)
{
InstantPQueueCursor++;
//Dequeued.SetStartExecution();
Dequeued.ExucutingNow = true;
return(Dequeued);
}
}
//else
if (InstantPlanQueue.Length > 0)
{
bool next = false;
//lock (planSync)
//{
next = CurrentPlanQueue.Length > CPQueueCursor;
//}
if (!next)
{
while (true)
{
if (InstantPQueueCursor >= InstantPlanQueue.Length)
{
InstantPQueueCursor = 0;
//Thread.Sleep(0);
Thread.Yield();
}
Dequeued = InstantPlanQueue[InstantPQueueCursor];
InstantPQueueCursor++;
if (Dequeued.ExucutingNow)
{
continue;
}
//Dequeued.SetStartExecution();
Dequeued.ExucutingNow = true;
break;
}
return(Dequeued);
}
InstantPQueueCursor = 0;
}
}
lock (planSync)
{
bool planNotEmpty = CurrentPlanQueue.Length > CPQueueCursor;
//int qq = CPQueueCursor;
if (planNotEmpty)
{
//if (CPQueueCursor != qq) throw new Exception();
Dequeued = CurrentPlanQueue[CPQueueCursor];
CPQueueCursor++;
Dequeued.SetStartExecution();
}
else
{
PlanItem[] jnewcmpnts = null;
PlanItem[] newcmpnts = null;
lock (OnceJobs)
{
if (OnceJobs.Count > 0)
{
jnewcmpnts = OnceJobs.ToArray();
OnceJobs.Clear();
}
}
if (jnewcmpnts != null)// deferred jobs found, refill with plan
{
PlanItem[] Pnewcmpnts = OrderComponents();
newcmpnts = new PlanItem[jnewcmpnts.Length + Pnewcmpnts.Length];
Array.Copy(jnewcmpnts, newcmpnts, jnewcmpnts.Length);
Array.Copy(Pnewcmpnts, 0, newcmpnts, jnewcmpnts.Length, Pnewcmpnts.Length);
}
else// deferred jobs not found, try to refill plan
{
newcmpnts = OrderComponents();
}
planNotEmpty = newcmpnts.Length > 0;
if (planNotEmpty)
{
if (newcmpnts.Length > 1)
{
// populate queue
PopulateQueue(newcmpnts);// let wait handled thread do that with race for job **
// exit from losck
//**
Dequeued = CurrentPlanQueue[CPQueueCursor];
CPQueueCursor++;// this thread has exclusive access without race for job
Dequeued.SetStartExecution();
}
else
{
Dequeued = newcmpnts[0];// this thread has exclusive access without race for job
Dequeued.SetStartExecution();
}
}
else
{
Dequeued = null;// plan is empty
}
}
}
//if (Dequeued != null)
//{
// lock (PlanComponents)
// {
// Dequeued.SetStartExecution();
// }
//}
//else if (wait)
if (wait && Dequeued == null)
{
// check if we have a job to wait
int waitsec = this.BeforeNextSec();
//Console.WriteLine("waitms: {0}", waitms);
if (waitsec > 0)
{
Console.WriteLine("wait {0}", Thread.CurrentThread.Name);
refilled.WaitOne(waitsec * 1000);// - System.DateTime.UtcNow.Millisecond);
}
Dequeued = this.Next(false);
}
//if (Dequeued == null && InstantPlanQueue.Length > 0)
//{
// Dequeued = InstantPlanQueue[InstantPQueueCursor];
// InstantPQueueCursor++;
// //Dequeued.SetStartExecution();
//}
//Console.WriteLine("deq {0} {1}", Dequeued == null, InstantPlanQueue.Length);
return(Dequeued);
}
