private void InternalMessageProc()
{
int bytesToRead;
int i;
IFlMessage parsedMessage;
FlParseState parseState;
byte[] data = new byte[128];
_logger.Debug("InternalMessageProc started");
while (_messageLoop == true)
{
bytesToRead = _serialPort.BytesToRead;
if (bytesToRead > 0)
{
_serialPort.Read(data, 0, bytesToRead);
for (i = 0; i < bytesToRead; i++)
{
parseState = _parser.ParseResponseEvent(data[i], out parsedMessage);
if (parseState == FlParseState.ParseOk)
{
lock (_generalLock)
{
switch (parsedMessage.MessageCategory)
{
case FlMessageCategory.Response:
int commandCount = 0;
lock (_generalLock)
{
commandCount = _commandQ.Count;
}
if (commandCount > 0)
{
FlTxtMessageResponse response = (FlTxtMessageResponse)parsedMessage;
_responseQ.Add(response);
}
else
{
_logger.Debug("Timeout response received");
}
break;
case FlMessageCategory.Event:
FlTxtMessageEvent evt = (FlTxtMessageEvent)parsedMessage;
OnEventReceived?.Invoke(this, evt);
break;
}
}
}
}
}
}
_logger.Debug("InternalMessageProc stopped");
}
public FlParseState ParseResponseEvent(byte data, out IFlMessage message)
{
FlParseState ret = FlParseState.Parsing;
message = null;
if (_fullPacketLength < FlConstant.FL_TXT_MSG_MAX_LENGTH)
{
_fullPacket[_fullPacketLength++] = data;
}
switch (_receiveState)
{
case ReceiveState.MessageId:
if (IsMsgIdChar(data) == true)
{
_buf[_bufPos++] = data;
if (_bufPos > FlConstant.TXT_MSG_ID_MAX_LEN)
{
ret = FlParseState.ParseFail;
}
}
else if (data == FlConstant.FL_TXT_MSG_ID_DEVICE_ID_DELIMITER)
{
_msgId = GetMessageId();
if (_msgId != FlMessageId.Unknown)
{
_receiveState = ReceiveState.DeviceId;
ClearReceiveBuffer();
}
else
{
ret = FlParseState.ParseFail;
}
}
else
{
ret = FlParseState.ParseFail;
}
break;
case ReceiveState.DeviceId:
if (IsDeviceIdChar(data) == true)
{
_buf[_bufPos++] = data;
if (_bufPos > FlConstant.TXT_DEVICE_ID_MAX_LEN)
{
ret = FlParseState.ParseFail;
}
}
else if (data == FlConstant.FL_TXT_MSG_ARG_DELIMITER)
{
if (ProcessResponseEventData() == true)
{
_receiveState = ReceiveState.Data;
ClearReceiveBuffer();
}
else
{
ret = FlParseState.ParseFail;
}
}
else if (IsTail(data) == true)
{
if (ProcessResponseEventData() == true)
{
_receiveState = ReceiveState.Tail;
ret = FlParseState.ParseOk;
}
else
{
ret = FlParseState.ParseFail;
}
}
else
{
ret = FlParseState.ParseFail;
}
break;
case ReceiveState.Data:
if (IsTail(data) != true)
{
if (data != FlConstant.FL_TXT_MSG_ARG_DELIMITER)
{
_buf[_bufPos++] = data;
if (_bufPos >= FlConstant.FL_TXT_MSG_MAX_LENGTH)
{
ret = FlParseState.ParseFail;
}
}
else
{
if (ProcessResponseEventData() == true)
{
ClearReceiveBuffer();
}
else
{
ret = FlParseState.ParseFail;
}
}
}
else
{
if (ProcessResponseEventData() == true)
{
_receiveState = ReceiveState.Tail;
ClearReceiveBuffer();
ret = FlParseState.ParseOk;
}
else
{
ret = FlParseState.ParseFail;
}
}
break;
default:
ret = FlParseState.ParseFail;
break;
}
if (ret != FlParseState.Parsing)
{
if (ret == FlParseState.ParseOk)
{
if (OnParseDone != null)
{
OnParseDone?.Invoke(this, null);
}
else
{
if (_msgId == FlMessageId.ButtonEvent)
{
message = new FlTxtMessageEvent()
{
MessageId = _msgId,
Arguments = new List <object>(),
ReceiveTime = DateTime.UtcNow
};
}
else
{
message = new FlTxtMessageResponse()
{
MessageId = _msgId,
Arguments = new List <object>(),
ReceiveTime = DateTime.UtcNow
};
}
while (_arguments.Count > 0)
{
message.Arguments.Add(_arguments[0]);
_arguments.RemoveAt(0);
}
}
}
Clear();
}
return(ret);
}