/// <summary>
/// Initializes a new instance.
/// </summary>
/// <param name="serializedData">The serialized data describing the model.</param>
/// <param name="stateHeaderBytes">
/// The number of bytes that should be reserved at the beginning of each state vector for the model checker tool.
/// </param>
internal RuntimeModel(SerializedRuntimeModel serializedData, int stateHeaderBytes = 0)
{
Requires.That(serializedData.Model != null, "Expected a valid model instance.");
var buffer = serializedData.Buffer;
var rootComponents = serializedData.Model.Roots;
var objectTable = serializedData.ObjectTable;
var formulas = serializedData.Formulas;
Requires.NotNull(buffer, nameof(buffer));
Requires.NotNull(rootComponents, nameof(rootComponents));
Requires.NotNull(objectTable, nameof(objectTable));
Requires.NotNull(formulas, nameof(formulas));
Requires.That(stateHeaderBytes % 4 == 0, nameof(stateHeaderBytes), "Expected a multiple of 4.");
Model = serializedData.Model;
SerializedModel = buffer;
RootComponents = rootComponents.Cast <Component>().ToArray();
Faults = objectTable.OfType <Fault>().Where(fault => fault.Activation == Activation.Nondeterministic && fault.IsUsed).ToArray();
ActivationSensitiveFaults = Faults.Where(fault => fault.RequiresActivationNotification).ToArray();
StateFormulas = objectTable.OfType <StateFormula>().ToArray();
Formulas = formulas;
// Create a local object table just for the objects referenced by the model; only these objects
// have to be serialized and deserialized. The local object table does not contain, for instance,
// the closure types of the state formulas
var objects = Model.ReferencedObjects;
var deterministicFaults = objectTable.OfType <Fault>().Where(fault => fault.Activation != Activation.Nondeterministic);
_serializedObjects = new ObjectTable(objects.Except(deterministicFaults, ReferenceEqualityComparer <object> .Default));
Objects = objectTable;
StateVectorLayout = SerializationRegistry.Default.GetStateVectorLayout(Model, _serializedObjects, SerializationMode.Optimized);
_deserialize = StateVectorLayout.CreateDeserializer(_serializedObjects);
_serialize = StateVectorLayout.CreateSerializer(_serializedObjects);
_restrictRanges = StateVectorLayout.CreateRangeRestrictor(_serializedObjects);
_stateHeaderBytes = stateHeaderBytes;
PortBinding.BindAll(objectTable);
_choiceResolver = new ChoiceResolver(objectTable);
ConstructionState = new byte[StateVectorSize];
fixed(byte *state = ConstructionState)
{
Serialize(state);
_restrictRanges();
}
FaultSet.CheckFaultCount(Faults.Length);
StateFormulaSet.CheckFormulaCount(StateFormulas.Length);
}
protected void GenerateCode(SerializationMode mode, params object[] objects)
{
objects = SerializationRegistry.Default.GetReferencedObjects(objects, mode).ToArray();
var model = TestModel.InitializeModel(new DummyComponent(objects));
_objectTable = new ObjectTable(objects);
StateVectorLayout = SerializationRegistry.Default.GetStateVectorLayout(model, _objectTable, mode);
_serializer = StateVectorLayout.CreateSerializer(_objectTable);
_deserializer = StateVectorLayout.CreateDeserializer(_objectTable);
_rangeRestrictor = StateVectorLayout.CreateRangeRestrictor(_objectTable);
StateSlotCount = StateVectorLayout.SizeInBytes / 4;
StateVectorSize = StateVectorLayout.SizeInBytes;
_buffer = new MemoryBuffer();
_buffer.Resize(StateVectorSize, zeroMemory: true);
SerializedState = _buffer.Pointer;
Output.Log("{0}", StateVectorLayout);
}
protected void GenerateCode(SerializationMode mode, params object[] objects)
{
objects = SerializationRegistry.Default.GetReferencedObjects(objects, mode).ToArray();
var model = TestModel.InitializeModel(new DummyComponent(objects));
_objectTable = new ObjectTable(objects);
StateVectorLayout = SerializationRegistry.Default.GetStateVectorLayout(model, _objectTable, mode);
_serializer = StateVectorLayout.CreateSerializer(_objectTable);
_deserializer = StateVectorLayout.CreateDeserializer(_objectTable);
_rangeRestrictor = StateVectorLayout.CreateRangeRestrictor(_objectTable);
StateSlotCount = StateVectorLayout.SizeInBytes / 4;
StateVectorSize = StateVectorLayout.SizeInBytes;
_buffer = new MemoryBuffer();
_buffer.Resize(StateVectorSize, zeroMemory: true);
SerializedState = _buffer.Pointer;
Output.Log("{0}", StateVectorLayout);
}
/// <summary>
/// Initializes a new instance.
/// </summary>
/// <param name="serializedData">The serialized data describing the model.</param>
/// <param name="stateHeaderBytes">
/// The number of bytes that should be reserved at the beginning of each state vector for the model checker tool.
/// </param>
internal SafetySharpRuntimeModel(SerializedRuntimeModel serializedData, int stateHeaderBytes = 0) : base(stateHeaderBytes)
{
Requires.That(serializedData.Model != null, "Expected a valid model instance.");
var buffer = serializedData.Buffer;
var rootComponents = serializedData.Model.Roots;
var objectTable = serializedData.ObjectTable;
var formulas = serializedData.Formulas;
Requires.NotNull(buffer, nameof(buffer));
Requires.NotNull(rootComponents, nameof(rootComponents));
Requires.NotNull(objectTable, nameof(objectTable));
Requires.NotNull(formulas, nameof(formulas));
Requires.That(stateHeaderBytes % 4 == 0, nameof(stateHeaderBytes), "Expected a multiple of 4.");
Model = serializedData.Model;
SerializedModel = buffer;
RootComponents = rootComponents.Cast <Component>().ToArray();
ExecutableStateFormulas = objectTable.OfType <ExecutableStateFormula>().ToArray();
Formulas = formulas;
StateConstraints = Model.Components.Cast <Component>().SelectMany(component => component.StateConstraints).ToArray();
// Create a local object table just for the objects referenced by the model; only these objects
// have to be serialized and deserialized. The local object table does not contain, for instance,
// the closure types of the state formulas.
Faults = objectTable.OfType <Fault>().Where(fault => fault.IsUsed).ToArray();
_serializedObjects = new ObjectTable(Model.ReferencedObjects);
Objects = objectTable;
StateVectorLayout = SerializationRegistry.Default.GetStateVectorLayout(Model, _serializedObjects, SerializationMode.Optimized);
UpdateFaultSets();
_deserialize = StateVectorLayout.CreateDeserializer(_serializedObjects);
_serialize = StateVectorLayout.CreateSerializer(_serializedObjects);
_restrictRanges = StateVectorLayout.CreateRangeRestrictor(_serializedObjects);
PortBinding.BindAll(objectTable);
InitializeConstructionState();
CheckConsistencyAfterInitialization();
}
/// <summary>
/// Serializes the <paramref name="model" />.
/// </summary>
private unsafe void SerializeModel(BinaryWriter writer, ModelBase model, Formula[] formulas)
{
// Collect all objects contained in the model
var objectTable = CreateObjectTable(model, formulas);
// Prepare the serialization of the model's initial state
lock (_syncObject)
{
_stateVector = SerializationRegistry.Default.GetStateVectorLayout(model, objectTable, SerializationMode.Full);
_deserializer = null;
}
var stateVectorSize = _stateVector.SizeInBytes;
var serializer = _stateVector.CreateSerializer(objectTable);
// Serialize the object table
SerializeObjectTable(objectTable, writer);
// Serialize the object identifier of the model itself and the formulas
writer.Write(objectTable.GetObjectIdentifier(model));
writer.Write(formulas.Length);
foreach (var formula in formulas)
writer.Write(objectTable.GetObjectIdentifier(formula));
// Serialize the initial state
var serializedState = stackalloc byte[stateVectorSize];
serializer(serializedState);
// Copy the serialized state to the stream
writer.Write(stateVectorSize);
for (var i = 0; i < stateVectorSize; ++i)
writer.Write(serializedState[i]);
}
