public void EnqueueEvent(PrtValue e, PrtValue arg)
{
Debug.Assert(e is PrtEventValue, "Illegal enqueue of null event");
PrtEventValue ev = e as PrtEventValue;
if (ev.evt.maxInstances == PrtEvent.DefaultMaxInstances)
{
events.Add(new PrtEventNode(e, arg));
}
else
{
if (CalculateInstances(e) == ev.evt.maxInstances)
{
if (ev.evt.doAssume)
{
throw new PrtAssumeFailureException();
}
else
{
throw new PrtMaxEventInstancesExceededException(
String.Format(@"< Exception > Attempting to enqueue event {0} more than max instance of {1}\n", ev.evt.name, ev.evt.maxInstances));
}
}
else
{
events.Add(new PrtEventNode(e, arg));
}
}
}
public void Announce(PrtEventValue ev, PrtValue payload, PrtMachine parent)
{
if (ev.Equals(PrtValue.@null))
{
throw new PrtIllegalEnqueueException("Enqueued event must not be null");
}
PrtType prtType = ev.evt.payloadType;
//assertion to check if argument passed inhabits the payload type.
if (prtType is PrtNullType)
{
if (!payload.Equals(PrtValue.@null))
{
throw new PrtIllegalEnqueueException("Did not expect a payload value");
}
}
else if (!PrtValue.PrtInhabitsType(payload, prtType))
{
throw new PrtInhabitsTypeException(String.Format("Payload <{0}> does not match the expected type <{1}> with event <{2}>", payload.ToString(), prtType.ToString(), ev.evt.name));
}
var allSpecMachines = GetSpecMachines(parent.renamedName);
foreach (var mon in allSpecMachines)
{
if (mon.observes.Contains(ev))
{
TraceLine("<AnnounceLog> Enqueued Event <{0}, {1}> to Spec Machine {2}", ev, payload, mon.Name);
mon.PrtEnqueueEvent(ev, payload, parent);
}
}
}
public override void PrtEnqueueEvent(PrtValue e, PrtValue arg, PrtMachine source)
{
if (e is PrtNullValue)
{
throw new PrtIllegalEnqueueException("Enqueued event must be non-null");
}
PrtType prtType;
PrtEventValue ev = e as PrtEventValue;
//assertion to check if argument passed inhabits the payload type.
prtType = ev.evt.payloadType;
if (!(prtType is PrtNullType) && !PrtValue.PrtInhabitsType(arg, prtType))
{
throw new PrtInhabitsTypeException(String.Format("Payload <{0}> does not match the expected type <{1}> with event <{2}>", arg.GetString(), prtType.GetString(), ev.evt.name));
}
else if (prtType is PrtNullType && !(arg is PrtNullValue))
{
throw new PrtIllegalEnqueueException("Did not expect a payload value");
}
if (currentStatus == PrtMachineStatus.Halted)
{
stateImpl.Trace(
@"<EnqueueLog> {0}-{1} Machine has been halted and Event {2} is dropped",
this.Name, this.instanceNumber, ev.evt.name);
}
else
{
stateImpl.Trace(
@"<EnqueueLog> Enqueued Event <{0}, {1}> in {2}-{3} by {4}-{5}",
ev.evt.name, arg.GetString(), this.Name, this.instanceNumber, source.Name, source.instanceNumber);
this.eventQueue.EnqueueEvent(e, arg);
if (this.maxBufferSize != -1 && this.eventQueue.Size() > this.maxBufferSize)
{
if (this.doAssume)
{
throw new PrtAssumeFailureException();
}
else
{
throw new PrtMaxBufferSizeExceededException(
String.Format(@"<EXCEPTION> Event Buffer Size Exceeded {0} in Machine {1}-{2}",
this.maxBufferSize, this.Name, this.instanceNumber));
}
}
if (currentStatus == PrtMachineStatus.Blocked && this.eventQueue.IsEnabled(this))
{
currentStatus = PrtMachineStatus.Enabled;
}
}
//Announce it to all the monitors
stateImpl.Announce(e, arg, source);
}
public void Announce(PrtEventValue ev, PrtValue payload, PrtMachine parent)
{
var allSpecMachines = GetSpecMachines(parent.renamedName);
foreach (var mon in allSpecMachines)
{
if (mon.observes.Contains(ev))
{
Trace("<AnnounceLog> Enqueued Event <{0}, {1}> to Spec Machine {2}", ev, payload, mon.Name);
mon.PrtEnqueueEvent(ev, payload, parent);
}
}
}
public void EnqueueEvent(PrtValue e, PrtValue arg, string senderMachineName, string senderMachineStateName)
{
Debug.Assert(e is PrtEventValue, "Illegal enqueue of null event");
var en = new PrtEventNode(e, arg, senderMachineName, senderMachineStateName);
if (IsConcrete()) // concrete: honor k-bounded queue semantics, instance counters, etc
{
if (k > 0 && Size() == k)
{
// Console.WriteLine("PrtEventBuffer.EnqueueEvent: queue bound {0} reached in attempt to enqueue; rejecting send event", k);
throw new PrtAssumeFailureException();
}
PrtEventValue ev = e as PrtEventValue;
if (ev.evt.maxInstances != PrtEvent.DefaultMaxInstances) // instance counter is used
{
if (CalculateInstances(e) == ev.evt.maxInstances)
{
if (ev.evt.doAssume)
{
throw new PrtAssumeFailureException();
}
else
{
throw new PrtMaxEventInstancesExceededException(String.Format(@"< Exception > Attempting to enqueue event {0} more than {1} many times\n", ev.evt.name, ev.evt.maxInstances));
}
}
}
}
events.Add(en); // concrete or abstract
if (IsAbstract() && Size() >= p + 2) // if the suffix was not empty before enqueuing this element
{
RemoveDuplicatesInSuffix();
}
}
public override void PrtEnqueueEvent(PrtValue e, PrtValue arg, PrtMachine source, PrtMachineValue target = null)
{
PrtEventValue ev = e as PrtEventValue;
if (ev.evt.name == "null")
{
throw new PrtIllegalEnqueueException("Enqueued event must not be null");
}
//check if the sent event is in source send set
if (!source.sends.Contains(e as PrtEventValue))
{
throw new PrtIllegalEnqueueException(String.Format("Machine <0> cannot send event {1}", source.Name, e.ToString()));
}
//check if the sent event is in target permissions
if (target is PrtInterfaceValue)
{
if (!(target as PrtInterfaceValue).permissions.Contains(e as PrtEventValue))
{
throw new PrtIllegalEnqueueException(String.Format("Event {1} is not in the permission set of the target", e.ToString()));
}
}
PrtType prtType = ev.evt.payloadType;
//assertion to check if argument passed inhabits the payload type.
if (prtType is PrtNullType)
{
if (!arg.Equals(PrtValue.@null))
{
throw new PrtIllegalEnqueueException("Did not expect a payload value");
}
}
else if (!PrtValue.PrtInhabitsType(arg, prtType))
{
throw new PrtInhabitsTypeException(String.Format("Payload <{0}> does not match the expected type <{1}> with event <{2}>", arg.ToString(), prtType.ToString(), ev.evt.name));
}
//check if the event sent is in the permissions
if (currentStatus == PrtMachineStatus.Halted)
{
stateImpl.Trace(
@"<EnqueueLog> {0}-{1} Machine has been halted and Event {2} is dropped",
this.Name, this.instanceNumber, ev.evt.name);
}
else
{
stateImpl.Trace(
@"<EnqueueLog> Enqueued Event <{0}, {1}> in {2}-{3} by {4}-{5}",
ev.evt.name, arg.ToString(), this.Name, this.instanceNumber, source.Name, source.instanceNumber);
this.eventQueue.EnqueueEvent(e, arg);
if (this.maxBufferSize != DefaultMaxBufferSize && this.eventQueue.Size() > this.maxBufferSize)
{
if (this.doAssume)
{
throw new PrtAssumeFailureException();
}
else
{
throw new PrtMaxBufferSizeExceededException(
String.Format(@"<EXCEPTION> Event Buffer Size Exceeded {0} in Machine {1}-{2}",
this.maxBufferSize, this.Name, this.instanceNumber));
}
}
if (currentStatus == PrtMachineStatus.Blocked && this.eventQueue.IsEnabled(this))
{
currentStatus = PrtMachineStatus.Enabled;
}
}
//Announce it to all the spec machines
stateImpl.Announce(e as PrtEventValue, arg, source);
}
public void AddAction(Tuple <string, int> t, PrtEventValue e, PrtValue v)
{
trace.Add(new SendAction(t, e.evt.name, v));
}