public void Step(SimulationModel.Key key, ISimulationAccess access)
{
long now = curTime + 1;
curTime = now;
if (Debug)
{
Console.WriteLine("step simulation {0}", now);
}
ClearDirty(key, access);
while (events.Count > 0 && events.Peek().when == now)
{
SetEvent evnt = events.Dequeue();
Port p = evnt.port;
Value cur = p.GetDrivenValue(key);
if (Debug)
{
Console.WriteLine(" {0}: drive {1} onto {2}, mark {3}", evnt.when, evnt.value, evnt.port, p.Subnet);
}
if (!cur.Equals(evnt.value))
{
p.SetDrivenValue(key, evnt.value);
dirtyNets.Add(p.Subnet);
}
}
ClearDirty(key, access);
anyDirty = events.Count > 0 || dirtyNets.Count > 0 || dirtyInstances.Count > 0;
}
private void ClearDirty(SimulationModel.Key key, ISimulationAccess access)
{
HashSet <Subnet> nets = dirtyNets;
HashSet <Instance> instances = dirtyInstances;
if (nets != null && nets.Count > 0)
{
dirtyNets = new HashSet <Subnet>();
foreach (Subnet net in nets)
{
if (Debug)
{
Console.Write(" net {0} /", net);
}
Value v = null;
foreach (Port p in net.Drivers)
{
Value u = p.GetDrivenValue(key);
if (Debug)
{
Console.Write("{0}/", u);
}
v = v == null ? u : v.Resolve(u);
}
if (Debug)
{
Console.WriteLine("-> {0}", v);
}
if (v == null)
{
int w = net.Width;
v = Value.Create(Value.U, w == 0 ? 1 : w);
}
net.SetValue(key, v);
foreach (Port p in net.Readers)
{
instances.Add(p.Instance);
}
}
}
if (instances != null && instances.Count > 0)
{
InstanceEvent evnt = new InstanceEvent(InstanceEvent.Types.InstanceDirty);
InstanceState iState = new InstanceState(access, null);
dirtyInstances = new HashSet <Instance>();
foreach (Instance instance in instances)
{
if (Debug)
{
Console.WriteLine(" propagate instance {0}", instance);
}
iState.Instance = instance;
instance.HandleEvent(evnt, iState);
}
}
}
private void LinkPortTo(ISimulationAccess sim, Port port, Node nDesired)
{
Node nCurrent = null;
List <Node> nRemove = null;
foreach (Node n in port.Neighbors)
{
if (n is Port)
{
// ignore - this is a link to the submodule's circuit
}
else if (nCurrent == null)
{
nCurrent = n;
}
else
{
if (nRemove == null)
{
nRemove = new List <Node>();
}
nRemove.Add(n);
}
}
if (nRemove != null)
{
foreach (Node n in nRemove)
{
if (Debug)
{
Console.WriteLine(" remove link {0}-{0}", port, n);
}
sim.RemoveLink(new Link(port, n));
}
}
if (nDesired != nCurrent)
{
if (nCurrent != null)
{
if (Debug)
{
Console.WriteLine(" remove link {0}-{1}", port, nCurrent);
}
sim.RemoveLink(new Link(port, nCurrent));
}
if (nDesired != null)
{
if (Debug)
{
Console.WriteLine(" add link {0}-{1}", port, nDesired);
}
sim.AddLink(new Link(port, nDesired));
}
}
}
public Value GetValueAt(ILayoutAccess layout, ISimulationAccess sim, Location loc)
{
layout.CheckReadAccess();
sim.CheckReadAccess();
LayoutNode sup = layout.FindNode(loc);
if (nodeMap.ContainsKey(sup))
{
return(sim.Get(nodeMap[sup]));
}
else
{
return(Value.X);
}
}
private void Clear()
{
Transaction xn = new Transaction();
ISimulationAccess sim = xn.RequestWriteAccess(simModel);
using (xn.Start()) {
foreach (Instance i in instanceMap.Values)
{
sim.RemoveInstance(i);
}
foreach (Node u in nodeMap.Values)
{
foreach (Link link in u.Links)
{
sim.RemoveLink(link);
}
}
}
}
private bool Send(PokeEventType type, IPointerEvent evnt)
{
if (poking != null)
{
Pokeable dest = poking.Component as Pokeable;
Location loc = pokingLocation;
MyPokeEvent pokeEvnt = new MyPokeEvent(type, evnt.X - loc.X, evnt.Y - loc.Y, evnt);
dest.ProcessPokeEvent(pokeEvnt);
if (pokeEvnt.pokeRejected)
{
return(false);
}
if (pokeEvnt.StateUpdate != null || pokeEvnt.repropagateRequested)
{
Transaction xn = new Transaction();
ISimulationAccess sim = xn.RequestWriteAccess(layoutModel.LayoutSim.SimulationModel);
using (xn.Start()) {
if (pokeEvnt.StateUpdate != null)
{
pokeEvnt.StateUpdate(new InstanceState(sim, poking));
}
if (pokeEvnt.repropagateRequested)
{
sim.MarkInstanceDirty(poking);
}
}
}
if (pokeEvnt.pokeRejected) // may be rejected within StateUpdate
{
return(false);
}
if (pokeEvnt.viewRequested != null)
{
layoutModel.RequestView(pokeEvnt.viewRequested, pokeEvnt.viewSimulation);
}
return(true);
}
else
{
return(false);
}
}
private void RenewPortLinks(ILayoutAccess subLayout, ISimulationAccess sim)
{
IEnumerator <Port> ports = this.Ports.GetEnumerator();
IEnumerator <Component> pins = subLayout.Pins.GetEnumerator();
while (ports.MoveNext() && pins.MoveNext())
{
Port compPort = ports.Current;
Component pin = pins.Current;
Instance pinInstance = subSimulation.GetInstance(subLayout, pin);
if (pinInstance != null)
{
Port pinPort = null;
foreach (Port tempPinPort in pinInstance.Ports)
{
pinPort = tempPinPort;
break;
}
List <Link> toRemove = new List <Link>(2);
foreach (Node nbr in pinPort.Neighbors)
{
if (nbr is Port && nbr != compPort)
{
toRemove.Add(new Link(pinPort, nbr));
}
}
foreach (Node nbr in compPort.Neighbors)
{
if (nbr is Port && nbr != pinPort)
{
toRemove.Add(new Link(compPort, nbr));
}
}
foreach (Link outLink in toRemove)
{
sim.RemoveLink(outLink);
}
sim.AddLink(new Link(compPort, pinPort));
}
}
}
protected override void HandleEventHook(InstanceEvent evnt, IInstanceState state)
{
SimulationModel simModel = null;
if (evnt is SimulationInstanceEvent)
{
simModel = ((SimulationInstanceEvent)evnt).SimulationModel;
}
if (evnt.Type == InstanceEvent.Types.InstanceAdded)
{
Transaction xn = new Transaction();
ILayoutAccess subLayout = xn.RequestReadAccess(subLayoutModel);
ISimulationAccess sim = xn.RequestWriteAccess(simModel);
using (xn.Start()) {
subSimulation = new LayoutSimulation(simModel, subLayoutModel);
subSimulation.SetActivated(true);
RenewPortLinks(subLayout, sim);
}
}
else if (evnt.Type == InstanceEvent.Types.InstancePortsChanged)
{
if (simModel == null)
{
simModel = subSimulation.SimulationModel;
}
if (subLayoutModel == null || simModel == null)
{
return;
}
Transaction xn = new Transaction();
ILayoutAccess subLayout = xn.RequestReadAccess(subLayoutModel);
ISimulationAccess sim = xn.RequestWriteAccess(simModel);
using (xn.Start()) {
RenewPortLinks(subLayout, sim);
}
}
else if (evnt.Type == InstanceEvent.Types.InstanceRemoved)
{
subSimulation.SetActivated(false);
}
}
private void Run()
{
while (true)
{
Transaction xn = new Transaction();
ISimulationAccess testSim = xn.RequestReadAccess(simModel);
using (xn.Start()) {
while (!testSim.IsStepPending() && !stopRequested)
{
xn.WaitForModify(testSim, monitor, () => stopRequested);
}
}
if (stopRequested)
{
break;
}
xn = new Transaction();
ISimulationAccess stepSim = xn.RequestWriteAccess(simModel);
using (xn.Start()) {
stepSim.StepSimulation();
}
}
}
public static List <Subnet> UpdateNets(SimulationModel.Key key, ISimulationAccess model, List <Subnet> oldNets)
{
if (key == null)
{
throw new ArgumentException("key needed");
}
if (Debug)
{
Console.WriteLine("Update subnets");
}
foreach (Node node in model.Nodes)
{
node.SetTempSubnet(key, null);
}
List <Subnet> sortedNets = new List <Subnet>(oldNets);
sortedNets.Sort((n0, n1) => n1.nodes.Count - n0.nodes.Count);
List <Subnet> allNewNets = new List <Subnet>();
foreach (Subnet oldNet in sortedNets)
{
List <Subnet> newNets = new List <Subnet>();
int largestSize = 0;
Subnet largestNet = null;
foreach (Node node in oldNet.nodes)
{
if (node.TempSubnet == null)
{
Subnet net = FindSubnetFrom(key, node);
newNets.Add(net);
int netSize = net.nodes.Count;
if (netSize > largestSize)
{
largestSize = netSize;
largestNet = net;
}
}
}
if (largestNet == null)
{
// no nets identified, so nothing to do
if (Debug)
{
Console.WriteLine(" {0} deleted", oldNet);
}
}
else if (newNets.Count == 1 && EqualsListsShallow(oldNet.nodes, newNets[0].nodes))
{
if (Debug)
{
Console.WriteLine(" {0} unchanged: drivers {1} readers {2} nodes {3}", oldNet,
",".JoinObjectStrings(oldNet.drivers), ",".JoinObjectStrings(oldNet.readers),
",".JoinObjectStrings(oldNet.nodes));
}
allNewNets.Add(oldNet); // just keep the old net, since they're identical
}
else
{
oldNet.nodes = largestNet.nodes;
foreach (Subnet rawNet in newNets)
{
Subnet newNet = rawNet == largestNet ? oldNet : rawNet;
allNewNets.Add(newNet);
ProcessPortsAndSetSubnets(key, newNet);
key.Engine.AddDirtyNet(newNet);
if (Debug)
{
Console.WriteLine(" {0} to {1}: drivers {2} readers {3} nodes {4}", oldNet, newNet,
",".JoinObjectStrings(newNet.drivers), ",".JoinObjectStrings(newNet.readers),
",".JoinObjectStrings(newNet.nodes));
}
}
}
}
foreach (Node node in model.Nodes)
{
if (node.TempSubnet == null)
{
Subnet net = FindSubnetFrom(key, node);
allNewNets.Add(net);
ProcessPortsAndSetSubnets(key, net);
if (Debug)
{
Console.WriteLine("dflt net {0}: drivers {1}, readers {2}, nodes {3}", net,
",".JoinObjectStrings(net.drivers), ",".JoinObjectStrings(net.readers),
",".JoinObjectStrings(net.nodes));
}
}
}
return(allNewNets);
}
protected override void PaintModel(IPaintbrush pb)
{
repainter.NotifyRepainted();
LayoutModel layoutModel = this.Layout;
LayoutSimulation layoutSim = this.LayoutSim;
if (layoutModel == null)
{
return;
}
if (layoutSim.LayoutModel != layoutModel)
{
Console.Error.WriteLine("layoutSim and layoutModel do not match");
return;
}
ComponentPainter ip = new ComponentPainter(pb, null);
bool noHidden = hidden.Count == 0;
Transaction xn = new Transaction();
ISimulationAccess sim = xn.RequestReadAccess(layoutSim.SimulationModel);
ILayoutAccess layout = xn.RequestReadAccess(layoutModel);
using (xn.Start()) {
using (IPaintbrush pbSub = pb.Create()) {
pbSub.StrokeWidth = Constants.WIRE_WIDTH;
foreach (WireSegment wire in layout.Wires)
{
Value val0 = layoutSim.GetValueAt(layout, sim, wire.End0);
pbSub.Color = Constants.GetColorFor(val0);
pbSub.StrokeLine(wire.End0.X, wire.End0.Y, wire.End1.X, wire.End1.Y);
}
}
InstanceState state = new InstanceState(sim, null);
ip.InstanceState = state;
foreach (Component component in layout.Components)
{
if (noHidden || !hidden.Contains(component))
{
Location loc = component.GetLocation(layout);
using (IPaintbrush pbSub = pb.Create()) {
pbSub.TranslateCoordinates(loc.X, loc.Y);
ip.Paintbrush = pbSub;
state.Instance = layoutSim.GetInstance(layout, component);
component.Paint(ip);
}
}
}
using (IPaintbrush pbSub = pb.Create()) {
foreach (Location loc in WiringPoints.SolderPoints)
{
Value val = layoutSim.GetValueAt(layout, sim, loc);
pbSub.Color = Constants.GetColorFor(val);
if (noHidden || WiringPoints.IsSolderPoint(loc, hidden))
{
pbSub.FillCircle(loc.X, loc.Y, Constants.SOLDER_RADIUS);
}
}
}
}
}
public InstanceState(ISimulationAccess access, Instance instance)
{
this.access = access;
this.Instance = instance;
}
private void Configure(ILayoutAccess layout)
{
activated = true;
Transaction xn = new Transaction();
ISimulationAccess sim = xn.RequestWriteAccess(simModel);
if (layout == null)
{
layout = xn.RequestReadAccess(this.LayoutModel);
}
using (xn.Start()) {
foreach (LayoutNode node in layout.Nodes)
{
if (!nodeMap.ContainsKey(node))
{
nodeMap[node] = new Node();
}
}
foreach (Component comp in layout.Components)
{
if (!instanceMap.ContainsKey(comp))
{
Instance instance = comp.CreateInstance();
instanceMap[comp] = instance;
sim.AddInstance(instance);
}
}
if (Debug)
{
Console.WriteLine("Circuit edited");
}
foreach (Component comp in layout.Components)
{
Location compLoc = comp.GetLocation(layout);
String cstr = null;
Instance instance = instanceMap[comp];
IEnumerator <ConnectionPoint> conns = comp.Connections.GetEnumerator();
IEnumerator <Port> ports = instance.Ports.GetEnumerator();
int i = -1;
while (conns.MoveNext() && ports.MoveNext())
{
i++;
ConnectionPoint conn = conns.Current;
Port port = ports.Current;
Location connLoc = compLoc.Translate(conn.Dx, conn.Dy);
if (Debug)
{
if (i == 0)
{
cstr = String.Format("{0}[{1}]", comp.GetType().Name, compLoc.ToString());
}
else
{
cstr = String.Format("{0," + cstr.Length + "}", "");
}
Console.WriteLine(" {0}.{1}: {2} [{3}]", cstr, i, layout.FindNode(connLoc), connLoc);
}
LinkPortTo(sim, port, nodeMap[layout.FindNode(connLoc)]);
}
}
}
}