/// <summary>
/// Constructor.
/// </summary>
/// <param name="e">Event</param>
/// <param name="originInfo">EventOriginInfo</param>
internal EventInfo(Event e, EventOriginInfo originInfo)
{
this.Event = e;
this.EventType = e.GetType();
this.EventName = this.EventType.FullName;
this.OriginInfo = originInfo;
}
/// <summary>
/// Handles the given event.
/// </summary>
/// <param name="e">Event to handle</param>
private void HandleEvent(Event e)
{
// Do not process an ignored event.
if (this.IgnoredEvents.Contains(e.GetType()))
{
Output.Log("<IgnoreLog> Monitor '{0}' ignored event '{1}'.",
this.GetType().Name, e.GetType());
return;
}
// Assign trigger and payload.
this.Trigger = e.GetType();
this.Payload = e.Payload;
while (true)
{
if (this.State == null)
{
// If the event cannot be handled then report an error and exit.
this.Assert(false, "Monitor '{0}' received event '{1}' that cannot be handled.",
this.GetType().Name, e.GetType().Name);
}
// If current state cannot handle the event then null the state.
if (!this.CanHandleEvent(e.GetType()))
{
Output.Debug(DebugType.Runtime, "<ExitLog> Monitor '{0}' exiting state '{1}'.",
this, this.State.GetType().Name);
this.State = null;
continue;
}
// Checks if the event can trigger a goto state transition.
if (this.GotoTransitions.ContainsKey(e.GetType()))
{
var transition = this.GotoTransitions[e.GetType()];
Type targetState = transition.Item1;
Action onExitAction = transition.Item2;
this.GotoState(targetState, onExitAction);
}
// Checks if the event can trigger an action.
else if (this.ActionBindings.ContainsKey(e.GetType()))
{
Action action = this.ActionBindings[e.GetType()];
this.Do(action);
}
break;
}
}
/// <summary>
/// Notifies the monitor to handle the received event.
/// </summary>
/// <param name="e">Event</param>
internal void MonitorEvent(Event e)
{
Output.Debug(DebugType.Runtime, "<EnqueueLog> Monitor '{0}' is processing " +
"event '{1}'.", this, e.GetType());
this.HandleEvent(e);
}
/// <summary>
/// Raises an event internally and returns from the execution context.
/// </summary>
/// <param name="e">Event</param>
protected internal void Raise(Event e)
{
// If the event is null then report an error and exit.
this.Assert(e != null, "Monitor '{0}' is raising a null event.", this.GetType().Name);
base.Runtime.Log("<MonitorLog> Monitor '{0}' raised event '{1}'.",
this, e.GetType().FullName);
this.HandleEvent(e);
}
/// <summary>
/// Notifies the monitor to handle the received event.
/// </summary>
/// <param name="e">Event</param>
internal void MonitorEvent(Event e)
{
base.Runtime.Log("<MonitorLog> Monitor '{0}' is processing event '{1}'.",
this, e.GetType().FullName);
this.HandleEvent(e);
}
/// <summary>
/// Handles the given event.
/// </summary>
/// <param name="e">Event to handle</param>
private void HandleEvent(Event e)
{
// Do not process an ignored event.
if (this.IgnoredEvents.Contains(e.GetType()))
{
return;
}
// Assigns the receieved event.
this.ReceivedEvent = e;
while (true)
{
if (this.State == null)
{
// If the event cannot be handled, then report an error and exit.
this.Assert(false, $"Monitor '{this.GetType().Name}' received event " +
$"'{e.GetType().FullName}' that cannot be handled.");
}
// If current state cannot handle the event then null the state.
if (!this.CanHandleEvent(e.GetType()))
{
base.Runtime.NotifyExitedState(this);
this.State = null;
continue;
}
// Checks if the event is a goto state event.
if (e.GetType() == typeof(GotoStateEvent))
{
Type targetState = (e as GotoStateEvent).State;
this.GotoState(targetState, null);
}
// Checks if the event can trigger a goto state transition.
else if (this.GotoTransitions.ContainsKey(e.GetType()))
{
var transition = this.GotoTransitions[e.GetType()];
this.GotoState(transition.Item1, transition.Item2);
}
// Checks if the event can trigger an action.
else if (this.ActionBindings.ContainsKey(e.GetType()))
{
string actionName = this.ActionBindings[e.GetType()];
this.Do(actionName);
}
break;
}
}
/// <summary>
/// Notifies the monitor to handle the received event.
/// </summary>
/// <param name="e">Event</param>
internal void MonitorEvent(Event e)
{
base.Runtime.Log($"<MonitorLog> Monitor '{this.GetType().Name}' " +
$"is processing event '{e.GetType().FullName}'.");
this.HandleEvent(e);
}
/// <summary>
/// Notifies the monitor to handle the received event.
/// </summary>
/// <param name="e">Event</param>
internal void MonitorEvent(Event e)
{
Output.Debug(DebugType.Runtime, "<EnqueueLog> Monitor '{0}' is processing " +
"event '{1}'.", this, e.GetType());
this.HandleEvent(e);
}
/// <summary>
/// Notifies the monitor to handle the received event.
/// </summary>
/// <param name="e">Event</param>
internal void MonitorEvent(Event e)
{
base.Runtime.Log($"<MonitorLog> Monitor '{this.GetType().Name}' " +
$"is processing event '{e.GetType().FullName}'.");
this.HandleEvent(e);
}
/// <summary>
/// Notifies the monitor to handle the received event.
/// </summary>
/// <param name="e">Event</param>
internal void MonitorEvent(Event e)
{
this.Runtime.Logger.OnMonitorEvent(this.GetType().Name, this.Id, this.CurrentStateName,
e.GetType().FullName, isProcessing: true);
this.HandleEvent(e);
}
/// <summary>
/// Handles the given event.
/// </summary>
/// <param name="e">Event to handle</param>
private void HandleEvent(Event e)
{
while (true)
{
if (this.StateStack.Count == 0)
{
// If the stack of states is empty and the event
// is halt, then terminate the machine.
if (e.GetType().Equals(typeof(Halt)))
{
lock (this.Inbox)
{
Machine.Dispatcher.Log("<HaltLog> Machine '{0}({1})' halted.",
this.GetType().Name, base.Id.MVal);
this.IsHalted = true;
this.CleanUpResources();
}
return;
}
// If the event cannot be handled then report an error and exit.
this.Assert(false, "Machine '{0}' received event '{1}' that cannot be handled.",
this.GetType().Name, e.GetType().Name);
}
// If current state cannot handle the event then pop the state.
if (!this.CanHandleEvent(e.GetType()))
{
// The machine performs the on exit action of the current state.
this.ExecuteCurrentStateOnExit(null);
if (this.IsHalted)
{
return;
}
this.StateStack.Pop();
if (this.StateStack.Count == 0)
{
Machine.Dispatcher.Log("<PopLog> Machine '{0}({1})' popped with unhandled event '{2}'.",
this, base.Id.MVal, e.GetType().Name);
}
else
{
Machine.Dispatcher.Log("<PopLog> Machine '{0}({1})' popped with unhandled event '{2}' " +
"and reentered state '{3}.", this, base.Id.MVal, e.GetType().Name,
this.StateStack.Peek().GetType().Name);
this.ConfigureStateTransitions(this.StateStack.Peek());
}
continue;
}
// Checks if the event can trigger a goto state transition.
if (this.GotoTransitions.ContainsKey(e.GetType()))
{
var transition = this.GotoTransitions[e.GetType()];
Type targetState = transition.Item1;
Action onExitAction = transition.Item2;
this.GotoState(targetState, onExitAction);
}
// Checks if the event can trigger a push state transition.
else if (this.PushTransitions.ContainsKey(e.GetType()))
{
Type targetState = this.PushTransitions[e.GetType()];
this.PushState(targetState);
}
// Checks if the event can trigger an action.
else if (this.ActionBindings.ContainsKey(e.GetType()))
{
Action action = this.ActionBindings[e.GetType()];
this.Do(action);
}
break;
}
}
/// <summary>
/// Notifies the monitor to handle the received event.
/// </summary>
/// <param name="e">Event</param>
internal void MonitorEvent(Event e)
{
Machine.Dispatcher.Log("<MonitorLog> Monitor '{0}' is processing event '{1}'.",
this, e.GetType());
this.HandleEvent(e);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="e">Event</param>
internal EventInfo(Event e)
{
this.Event = e;
this.EventType = e.GetType();
this.EventName = this.EventType.FullName;
}
/// <summary>
/// Sends an asynchronous event to a machine.
/// </summary>
/// <param name="mid">Machine id</param>
/// <param name="e">Event</param>
internal static void Send(MachineId mid, Event e)
{
if (mid == null)
{
ErrorReporter.ReportAndExit("Cannot send to a null machine.");
}
else if (e == null)
{
ErrorReporter.ReportAndExit("Cannot send a null event.");
}
if (PSharpRuntime.TaskMap.ContainsKey((int)Task.CurrentId))
{
Machine sender = PSharpRuntime.TaskMap[(int)Task.CurrentId];
Output.Log("<SendLog> Machine '{0}({1})' sent event '{2}' to '{3}({4})'.",
sender, sender.Id.MVal, e.GetType(), mid.Type, mid.MVal);
}
else
{
Output.Log("<SendLog> Event '{0}' was sent to '{1}({2})'.",
e.GetType(), mid.Type, mid.MVal);
}
Machine machine = PSharpRuntime.MachineMap[mid.Value];
bool runHandler = false;
machine.Enqueue(e, ref runHandler);
if (!runHandler)
{
PSharpRuntime.BugFinder.Schedule();
return;
}
Task task = new Task(() =>
{
PSharpRuntime.BugFinder.NotifyTaskStarted();
machine.RunEventHandler();
PSharpRuntime.BugFinder.NotifyTaskCompleted();
});
lock (PSharpRuntime.Lock)
{
PSharpRuntime.MachineTasks.Add(task);
PSharpRuntime.TaskMap.Add(task.Id, machine as Machine);
}
PSharpRuntime.BugFinder.NotifyNewTaskCreated(task.Id, machine);
if (PSharpRuntime.Configuration.ScheduleIntraMachineConcurrency)
{
task.Start(PSharpRuntime.TaskScheduler);
}
else
{
task.Start();
}
PSharpRuntime.BugFinder.WaitForTaskToStart(task.Id);
PSharpRuntime.BugFinder.Schedule();
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="e">Event</param>
internal EventInfo(Event e)
{
this.Event = e;
this.EventType = e.GetType();
this.EventName = this.EventType.FullName;
}