private IEnumerable <ITimedFlow> ConstructNetwork(SignalRef target, IEnumerable <ITimedFlow> flows)
{
var groupedByDelay = flows
.GroupBy(tf => tf is TimedSignalFlow ? ((TimedSignalFlow)tf).Delay : 0)
.OrderBy(grp => grp.Key);
var curTarget = target;
int remainingFanIn = flows.Count();
long generation = 0;
var pumpOut = new List <SignalFlow>();
foreach (var delayGroup in groupedByDelay)
{
foreach (var tflow in delayGroup)
{
var tsf = tflow as TimedSignalFlow;
var tvf = tflow as TimedValueFlow;
if (tsf != null)
{
long flowDelay = tsf.Delay - generation;
if (flowDelay == 0)
{
yield return(new TimedSignalFlow(tsf.Source, curTarget, tsf.Time, 0));
}
else
{
SignalBase tmpSig = Signals.CreateInstance(tsf.Source.Desc.InitialValue);
tmpSig.Descriptor.TagTemporary(_tmpIdx++);
yield return(new TimedSignalFlow(
tsf.Source,
tmpSig.ToSignalRef(SignalRef.EReferencedProperty.Next),
tsf.Time, 0));
yield return(new TimedSignalFlow(
tmpSig.ToSignalRef(SignalRef.EReferencedProperty.Cur),
curTarget,
tsf.Time + flowDelay, 0));
}
long start = tsf.Time + tsf.Delay;
foreach (var pump in pumpOut)
{
yield return(new TimedSignalFlow(pump.Source, pump.Target, start, 0));
start--;
}
}
else
{
// remark: as of now, delay is always 0
yield return(new TimedValueFlow(tvf.Value, curTarget, tvf.Time));
}
}
long delay = delayGroup.Key;
remainingFanIn -= delayGroup.Count();
#if false
if (remainingFanIn > 1)
{
var stageInSignal = _binder.GetSignal(EPortUsage.Default,
"icn_" + target.Desc.Name + "_" + generation + "_in",
null,
target.Desc.InitialValue);
var stageOutSignal = _binder.GetSignal(EPortUsage.Default,
"icn_" + target.Desc.Name + "_" + generation + "_out",
null,
target.Desc.InitialValue);
_stageInSignals.Add(stageInSignal);
_stageOutSignals.Add(stageOutSignal);
var pumpSource = new SignalRef(stageOutSignal.ToSignalRef(SignalRef.EReferencedProperty.Cur));
pumpOut.Add(new SignalFlow(pumpSource, curTarget));
curTarget = new SignalRef(stageInSignal.ToSignalRef(SignalRef.EReferencedProperty.Next));
++generation;
}
#endif
}
}
