public bool ParseData(ref byte type, ref ushort opCode, ref ushort eventOpCode, ref byte length, ref byte[] data)
{
bool data_presents = false;
bufferMutex.WaitOne();
if (dataBuffer.Count != 0)
{
switch (parserState)
{
case CommParser.ParserStateEnum.packet_type_token:
if ((byte)dataBuffer.Peek() == 4)
{
type = (byte)dataBuffer.Dequeue();
parserState = CommParser.ParserStateEnum.event_code_token;
}
else
dataBuffer.Dequeue();
break;
case CommParser.ParserStateEnum.event_code_token:
opCode = (ushort)(byte)dataBuffer.Dequeue();
parserState = CommParser.ParserStateEnum.length_token;
break;
case CommParser.ParserStateEnum.eop0_token:
eventOpCode = (ushort)(byte)dataBuffer.Dequeue();
parserState = CommParser.ParserStateEnum.eop1_token;
break;
case CommParser.ParserStateEnum.eop1_token:
eventOpCode |= (ushort)((ushort)(byte)dataBuffer.Dequeue() << 8);
parserState = CommParser.ParserStateEnum.data_token;
break;
case CommParser.ParserStateEnum.length_token:
length = (byte)dataBuffer.Dequeue();
parserState =
(opCode == 19 || opCode == 0xff)
? CommParser.ParserStateEnum.eop0_token
: CommParser.ParserStateEnum.data_token;
break;
case CommParser.ParserStateEnum.data_token:
if (type == 4)
{
int pack_length =
(opCode == 19 || opCode == 0xff)
? length - 2
: length;
if (dataBuffer.Count >= pack_length)
{
data = new byte[pack_length];
for (int index = 0; index < data.Length; ++index)
data[index] = (byte)dataBuffer.Dequeue();
data_presents = true;
parserState = CommParser.ParserStateEnum.packet_type_token;
}
}
else
{
data_presents = false;
parserState = CommParser.ParserStateEnum.packet_type_token;
}
break;
}
}
bufferMutex.ReleaseMutex();
return data_presents;
}
public bool ParseData(ref byte type, ref ushort opCode, ref ushort eventOpCode, ref byte length, ref byte[] data)
{
bool data_presents = false;
bufferMutex.WaitOne();
if (dataBuffer.Count != 0)
{
switch (parserState)
{
case CommParser.ParserStateEnum.packet_type_token:
if ((byte)dataBuffer.Peek() == 4)
{
type = (byte)dataBuffer.Dequeue();
parserState = CommParser.ParserStateEnum.event_code_token;
}
else
{
dataBuffer.Dequeue();
}
break;
case CommParser.ParserStateEnum.event_code_token:
opCode = (ushort)(byte)dataBuffer.Dequeue();
parserState = CommParser.ParserStateEnum.length_token;
break;
case CommParser.ParserStateEnum.eop0_token:
eventOpCode = (ushort)(byte)dataBuffer.Dequeue();
parserState = CommParser.ParserStateEnum.eop1_token;
break;
case CommParser.ParserStateEnum.eop1_token:
eventOpCode |= (ushort)((ushort)(byte)dataBuffer.Dequeue() << 8);
parserState = CommParser.ParserStateEnum.data_token;
break;
case CommParser.ParserStateEnum.length_token:
length = (byte)dataBuffer.Dequeue();
parserState =
(opCode == 19 || opCode == 0xff)
? CommParser.ParserStateEnum.eop0_token
: CommParser.ParserStateEnum.data_token;
break;
case CommParser.ParserStateEnum.data_token:
if (type == 4)
{
int pack_length =
(opCode == 19 || opCode == 0xff)
? length - 2
: length;
if (dataBuffer.Count >= pack_length)
{
data = new byte[pack_length];
for (int index = 0; index < data.Length; ++index)
{
data[index] = (byte)dataBuffer.Dequeue();
}
data_presents = true;
parserState = CommParser.ParserStateEnum.packet_type_token;
}
}
else
{
data_presents = false;
parserState = CommParser.ParserStateEnum.packet_type_token;
}
break;
}
}
bufferMutex.ReleaseMutex();
return(data_presents);
}
public CommParser()
{
dataBuffer = new Queue();
bufferMutex = new Mutex();
parserState = CommParser.ParserStateEnum.packet_type_token;
}
public CommParser()
{
dataBuffer = new Queue();
bufferMutex = new Mutex();
parserState = CommParser.ParserStateEnum.packet_type_token;
}
