public void ProcessCountChange(Pointstamp time, Int64 weight)
{
// the PCS should not be touched outside this lock, other than by capturing PCS.Frontier.
Tracing.Trace("(PCSLock");
Monitor.Enter(this.PCS);
var oldfrontier = PCS.Frontier;
var frontierChanged = PCS.UpdatePointstampCount(time, weight);
var newfrontier = PCS.Frontier;
Monitor.Exit(this.PCS);
Tracing.Trace(")PCSLock");
if (frontierChanged)
{
// get an exclusive lock, as this.Output.Send is not threadsafe.
Tracing.Trace("(GlobalLock");
lock (this.scheduler.Controller.GlobalLock)
{
foreach (var pointstamp in newfrontier.Except(oldfrontier))
{
this.Output.Send(+1, pointstamp);
}
foreach (var pointstamp in oldfrontier.Except(newfrontier))
{
this.Output.Send(-1, pointstamp);
}
this.Output.Flush();
}
Tracing.Trace(")GlobalLock");
if (this.OnFrontierChanged != null)
{
this.OnFrontierChanged(this, new FrontierChangedEventArgs(newfrontier));
}
}
}
public void ProcessCountChange(Pointstamp time, Int64 weight)
{
// the PCS should not be touched outside this lock, other than by capturing PCS.Frontier.
Tracing.Trace("(PCSLock");
Monitor.Enter(this.PCS);
var oldFrontier = PCS.Frontier;
var frontierChanged = PCS.UpdatePointstampCount(time, weight);
var newFrontier = PCS.Frontier;
Monitor.Exit(this.PCS);
Tracing.Trace(")PCSLock");
if (frontierChanged)
{
// aggregation may need to flush
this.Aggregator.ConsiderFlushingBufferedUpdates();
// fire any frontier changed events
if (this.OnFrontierChanged != null)
{
this.OnFrontierChanged(this, new FrontierChangedEventArgs(newFrontier));
}
// no elements means done.
if (newFrontier.Length == 0)
{
Tracing.Trace("Frontier advanced to <empty>");
this.FrontierEmpty.Set();
}
else
{
Tracing.Trace("Frontier advanced to " + string.Join(" ", newFrontier.Select(x => x.ToString())));
}
// Wake up schedulers to run shutdown actions for the graph.
this.Stage.InternalGraphManager.Controller.Workers.WakeUp();
}
}
