public Thread(Node node, InstructionStream instructionStream, AutomataContextState contextState) : this()
{
CurrentNode = node;
InstructionPointer = InstructionStream.InitializeInstructionPointer();
InstructionStream = instructionStream.AddReference();
ContextState = contextState;
}
protected sealed override void DisposeContextState(AutomataContextState contextState)
{
if (contextState == null)
{
return;
}
var parserContextState = (ParserAutomataContextState)contextState;
parserContextState.ParserContext.Dispose();
parserContextState.ParserContext = null;
_parserAutomataContextStatesPool.Push(parserContextState);
}
protected sealed override AutomataContextState CloneContextState(AutomataContextState contextState)
{
if (contextState == null)
{
return(null);
}
var parserContextState = (ParserAutomataContextState)contextState;
var cloneContextState = _parserAutomataContextStatesPool.Count > 0 ? _parserAutomataContextStatesPool.Pop() : new ParserAutomataContextState();
var parserContextClone = parserContextState.ParserContext.Clone();
parserContextClone.ParserAutomataContext = this;
cloneContextState.ParserContext = parserContextClone;
return(cloneContextState);
}
public Thread(ThreadParent parent, Node node, InstructionStream instructionStream, int instructionPointer, AutomataContextState contextState) : this()
{
CurrentNode = node;
InstructionPointer = instructionPointer;
ContextState = contextState;
InstructionStream = instructionStream.AddReference();
InstructionStream.LockPointer(InstructionPointer);
if (parent == null)
{
return;
}
Parent = parent;
Parent.AddReference();
}
public void Dispose(Process process)
{
if (Parent == null)
{
Stack?.ReleaseReference();
ExecutionQueue?.ReleaseReference();
PredicateResultQueue?.ReleaseReference();
}
else
{
if (ReferenceEquals(Stack, Parent.Stack) == false)
{
Stack?.ReleaseReference();
}
if (ReferenceEquals(ExecutionQueue, Parent.ExecutionQueue) == false)
{
ExecutionQueue?.ReleaseReference();
}
if (ReferenceEquals(PredicateResultQueue, Parent.PredicateResultQueue) == false)
{
PredicateResultQueue?.ReleaseReference();
}
Parent.ReleaseReference();
}
InstructionStream.UnlockPointer(InstructionPointer);
StartExecutionQueue?.ReleaseReference();
InstructionStream.ReleaseReference();
process.Context.DisposeContextStateInternal(ContextState);
DfaTrails = null;
DfaTrailIndex = -1;
Stack = null;
Parent = null;
ContextState = null;
ExecutionQueue = null;
InstructionStream = null;
StartExecutionQueue = null;
}
