public SettingsParser(SettingsSyntax proposedSyntax = null)
{
this.Syntax = proposedSyntax ?? new SettingsSyntax();
ConcatenationParser listParser = new ConcatenationParser (
this.Syntax.ArrayOpen, this.Syntax.ArrayClose, this.Syntax.ArrayDelimiter
);
AnyParser ExpressionParser = new AnyParser (
new AnyValueParser(),
new AnyStringParser(),
new StringConcatenationParser(this.Syntax),
listParser,
this
);
listParser.InnerParser = ExpressionParser;
this.HeadParser = new HeadParser (ExpressionParser, this.Syntax);
this.PredefParser = new PredefinitionParser();
this.ChainParser = new ExtensionParser (this.Syntax.Chainer, this.Syntax.ChainSubstitution, this);
this.BodyParser = new BodyParser (ExpressionParser, this.Syntax);
this.SuccessorParser = new ExtensionParser (this.Syntax.Successor, this.Syntax.SuccessorSubstitution, this);
}
protected override void ProcessorThread()
{
try
{
while (!Terminating)
{
// HeadParser excess -> HeadParser
if (HeadParser.Buffered > 0)
{
HeadParser.Write(HeadParser.Read());
}
if (HeadParser.QueuedCount == 0)
{
// BodyParser excess -> HeadParser
if (BodyParser.OutgoingBuffered > 0)
{
HeadParser.Write(BodyParser.ReadExcess());
}
}
if (HeadParser.QueuedCount == 0)
{
// upcoming data -> HeadParser
Base.Resume();
Base.Pipe(HeadParser);
}
RequestHead head = HeadParser.Next();
if (head == null)
{
break; // disconnecting
}
// repipe
if (!BodyParser.TrySetFor(head))
{
Terminate(); break;
} // badly set body encoding
if (BodyParser.TransferEncoding != TransferEncoding.None)
{
// body exists
bool bodyFinished = false;
ControlHandler d = () => { Base.Pause(); bodyFinished = true; };
BodyParser.OnEnd += d;
// HeadParser excess -> BodyParser
BodyParser.Write(HeadParser.Read());
if (!bodyFinished)
{
// upcoming data -> BodyParser
Base.Pipe(BodyParser);
}
}
else
{
Base.Pause(); // no body
}
HeadSerializer.Pipe(Base);
BodySerializer.Pipe(Base);
// create request
ClientRequest req = new ClientRequest(this, head);
ServerResponse res = new ServerResponse(this);
CurrentMessage = (req, res);
// pipe body buffers
BodyParser.Pipe(req.BodyBuffer);
res.BodyBuffer.Pipe(BodySerializer);
req.OnEnd += Terminate;
if (OnMessage == null)
{
throw new InvalidOperationException("OnMessage is null");
}
OnMessage?.Invoke(req, res);
if (req.Cancelled)
{
break; // terminated
}
if (!res.Ended)
{
res.EndWait.WaitOne(); // wait for end
}
// end body buffers
if (!req.Ended)
{
req.BodyBuffer.End();
}
if (!res.Ended)
{
res.BodyBuffer.End();
}
// finish body
BodySerializer.Finish();
// unpipe serializers
HeadSerializer.Unpipe();
BodySerializer.Unpipe();
// message processed
CurrentMessage = (null, null);
// check for disconnection
if (head.Headers["Connection"] == "close")
{
End();
Base.End();
return;
}
// check if upgrading
if (Upgrading)
{
End();
return;
}
}
}
catch (ObjectDisposedException) { /* socket got disposed */ }
if (!HeadParser.Ended)
{
End();
}
}