public override ATParserResult Parse(byte[] buffer, int index, int count)
{
Match responseMatch;
ATParserResult parserResult = null;
responseMatch = this.Regex.Match(buffer, index, count);
if (responseMatch.Success)
{
parserResult = this.Unsolicited ? ATParserResult.UnsolicitedInstance : ATParserResult.Instance;
parserResult.Command = this.Command;
parserResult.CommandType = this.CommandType;
parserResult.Unsolicited = this.Unsolicited;
parserResult.Success = true;
parserResult.Index = responseMatch.Index;
parserResult.Length = responseMatch.Length;
if (this.RegexResultGroup > 0 &&
this.RegexResultGroup < responseMatch.Groups.Length &&
responseMatch.Groups[this.RegexResultGroup].Success)
{
parserResult.Result = this.GetText(buffer, responseMatch.Groups[this.RegexResultGroup].index, responseMatch.Groups[this.RegexResultGroup].length);
}
else
{
parserResult.Result = null;
}
if (this.RegexParametersGroup > 0 &&
this.RegexParametersGroup < responseMatch.Groups.Length &&
responseMatch.Groups[this.RegexParametersGroup].Success)
{
parserResult.OutParameters = this.GetText(buffer, responseMatch.Groups[this.RegexParametersGroup].index, responseMatch.Groups[this.RegexParametersGroup].length);
}
else
{
parserResult.OutParameters = null;
}
if (this.RegexDataLengthGroup > 0 &&
this.RegexDataLengthGroup < responseMatch.Groups.Length &&
responseMatch.Groups[this.RegexDataLengthGroup].Success)
{
parserResult.DataLength = Convert.ToInt32(this.GetText(buffer, responseMatch.Groups[this.RegexDataLengthGroup].index, responseMatch.Groups[this.RegexDataLengthGroup].length));
}
else
{
parserResult.DataLength = 0;
}
}
return(parserResult);
}
public ATProtocol(Stream stream, ATParser parser)
{
this.stream = stream;
this.parser = parser;
this.parserResult = null;
this.closed = false;
this.syncRoot = new object();
this.echoEnabled = true;
this.sendingLength = 0;
this.sendingBuffer = new byte[sendingBufferSize];
this.waitingLock = new object();
this.waitingEchoEvent = new AutoResetEvent(false);
this.waitingResponseEvent = new AutoResetEvent(false);
this.readDataLength = 0;
this.receivingBuffer = new byte[receivingBufferSize];
this.receivingThread = new Thread(this.ReceiverThreadRun);
this.receivingThread.Start();
}
private void ReceiverThreadRun()
{
try
{
while (!this.closed)
{
readBytes = this.stream.Read(this.receivingBuffer, this.receivingBufferIndex + this.receivingBufferCount,
receivingBufferSize - this.receivingBufferIndex - this.receivingBufferCount);
if (readBytes > 0)
{
this.receivingBufferCount += readBytes;
#if (DEBUG)
Debug.Print("ReadBuffer > " + readBytes);
Debug.Print(new string(ATParser.Bytes2Chars(this.receivingBuffer, this.receivingBufferIndex, this.receivingBufferCount)));
#endif
while (this.receivingBufferCount > 0)
{
lock (this.waitingLock)
{
this.parserResult = null;
//Verifico se sono in attesa del comando inviato.
if (this.waitingEcho)
{
//Verifico se è scaduto il timeout di attesa.
if (Environment.TickCount - this.waitingTimeout > 0)
{
this.waitingEcho = false;
}
else
{
//Cerco il comando inviato.
this.frameIndex = ATParser.IndexOfSequence(this.receivingBuffer, this.receivingBufferIndex, this.receivingBufferCount, this.sendingBuffer, 0, this.sendingLength, true);
//Verifico se ho trovato il comando inviato.
if (this.frameIndex != -1)
{
this.waitingEcho = false;
this.waitingEchoEvent.Set();
//Cancello il contenuto del buffer relativo al comando inviato.
movingBytes = this.receivingBufferIndex + this.receivingBufferCount -
this.frameIndex - this.sendingLength;
if (movingBytes > 0)
{
Array.Copy(this.receivingBuffer, this.receivingBufferIndex + this.receivingBufferCount -
movingBytes, this.receivingBuffer, this.frameIndex, movingBytes);
}
this.receivingBufferCount -= this.sendingLength;
}
}
}
//Verifico se sono in attesa di una risposta attesa.
if (this.receivingBufferCount > 0 && this.waitingResponse && !this.waitingEcho)
{
//Verifico se è scaduto il timeout di attesa.
if (Environment.TickCount - this.waitingTimeout > 0)
{
this.waitingResponse = false;
//Verifico se bisogna invocare una callback.
if (this.waitingCallback != null)
{
this.waitingAsyncResult.AsyncException =
new ATModemException(ATModemError.Timeout);
this.waitingCallback(this.waitingAsyncResult);
}
}
else
{
//Eseguo il parse della risposta attesa.
this.parserResult = this.parser.ParseResponse(this.waitingCommand,
this.waitingCommandType, this.receivingBuffer,
this.receivingBufferIndex, this.receivingBufferCount);
if (this.parserResult != null && parserResult.Success)
{
#if (DEBUG)
Debug.Print("ParserResult.Success > " + this.parserResult.Command);
#endif
this.dataLength = this.parserResult.DataLength;
this.dataStream = this.dataLength > 0 ? ATResponseDataStream.GetInstance(this.dataLength) : null;
//Notifico la ricezione della risposta attesa.
this.waitingResponse = false;
this.waitingFrame = ATFrame.GetInstance(parserResult.Command, parserResult.CommandType, this.dataStream, parserResult.Unsolicited, parserResult.Result, parserResult.OutParameters);
this.waitingResponseEvent.Set();
//Verifico se bisogna invocare una callback.
if (this.waitingCallback != null)
{
this.waitingCallback(this.waitingAsyncResult);
}
}
}
}
if (this.receivingBufferCount > 0 && (this.parserResult == null || !parserResult.Success))
{
//Eseguo il parse della risposta non attesa.
this.parserResult = this.parser.ParseUnsolicitedResponse(this.receivingBuffer,
this.receivingBufferIndex, this.receivingBufferCount);
if (this.parserResult != null && parserResult.Success)
{
#if (DEBUG)
Debug.Print("ParserUnsolicitedResult.Success > " + this.parserResult.Command);
#endif
this.dataLength = this.parserResult.DataLength;
this.dataStream = this.dataLength > 0 ? ATResponseDataStream.GetInstance(this.dataLength) : null;
//Notifico la ricezione della risposta non attesa.
if (this.FrameReceived != null)
this.FrameReceived(this, ATModemFrameEventArgs.GetInstance(ATFrame.GetInstance(parserResult.Command, parserResult.CommandType, this.dataStream, parserResult.Unsolicited, parserResult.Result, parserResult.OutParameters)));
}
}
if (this.parserResult != null && parserResult.Success)
{
this.frameIndex = this.parserResult.Index;
this.frameLength = this.parserResult.Length;
if (this.dataLength > 0)
{
this.dataIndex = this.frameIndex + this.frameLength;
this.dataCount = 0;
this.readDataLength = this.receivingBufferIndex + this.receivingBufferCount - this.dataIndex;
if (this.readDataLength > this.dataLength)
this.readDataLength = this.dataLength;
if (this.readDataLength > 0)
{
this.dataCount += this.readDataLength;
#if (DEBUG)
Debug.Print("ReadData > " + this.readDataLength + "/" + this.dataCount);
//Debug.Print(new string(ATParser.Bytes2Chars(this.receivingBuffer, this.dataIndex, this.readDataLength)));
#endif
this.dataStream.WriteBuffer(this.receivingBuffer, this.dataIndex, this.readDataLength);
}
//Check if read bytes from the serial port.
if (this.dataCount < this.dataLength)
{
while (this.dataCount < this.dataLength)
{
this.dataTicks = Environment.TickCount;
readBytes = this.stream.Read(this.receivingBuffer, this.frameIndex, receivingBufferSize - this.frameIndex);
this.dataTime = Environment.TickCount - this.dataTicks;
#if (DEBUG)
Debug.Print("ReadDataBuffer > " + readBytes + "/" + this.dataTime);
//Debug.Print(new string(ATParser.Bytes2Chars(this.receivingBuffer, this.frameIndex, readBytes)));
#endif
lock (this.waitingLock)
{
//Verifico se sono in attesa di una risposta o se è scaduto il data timeout.
if (this.dataTime > defaultDataTimeout)
{
this.dataStream.Close();
this.readDataLength = 0;
break;
}
}
this.readDataLength = this.dataLength - this.dataCount;
if (this.readDataLength > readBytes)
this.readDataLength = readBytes;
this.dataCount += this.readDataLength;
#if (DEBUG)
Debug.Print("ReadData > " + this.readDataLength + "/" + this.dataCount);
//Debug.Print(new string(ATParser.Bytes2Chars(this.receivingBuffer, this.frameIndex, this.readDataLength)));
#endif
this.dataStream.WriteBuffer(this.receivingBuffer, this.frameIndex, this.readDataLength);
}
this.receivingBufferCount += (readBytes - this.frameLength);
this.readDataLength -= this.frameLength;
}
}
else
{
this.readDataLength = 0;
}
//Cancello il contenuto del buffer relativo alla risposta e ai dati.
movingBytes = this.receivingBufferIndex + this.receivingBufferCount -
this.frameIndex - this.frameLength - this.readDataLength;
if (movingBytes > 0)
{
Array.Copy(this.receivingBuffer, this.receivingBufferIndex + this.receivingBufferCount -
movingBytes, this.receivingBuffer, this.frameIndex, movingBytes);
}
this.receivingBufferCount -= (this.frameLength + this.readDataLength);
}
else
{
#if (DEBUG)
Debug.Print("ResponseBuffer > " + this.receivingBufferCount);
Debug.Print(new string(ATParser.Bytes2Chars(this.receivingBuffer, this.receivingBufferIndex, this.receivingBufferCount)));
#endif
if (this.receivingBufferCount == receivingBufferSize)
{
//Cancello il contenuto del buffer.
this.receivingBufferIndex = 0;
this.receivingBufferCount = 0;
}
if (!this.waitingResponse)
{
//Cerco il primo delimitatore.
firstDelimiterIndex = this.parser.IndexOfDelimitor(this.receivingBuffer,
this.receivingBufferIndex, this.receivingBufferCount, true);
if (firstDelimiterIndex != -1)
{
secondDelimiterIndex = firstDelimiterIndex + this.parser.LengthOfDelimitor();
//Cerco il secondo delimitatore.
secondDelimiterIndex = this.parser.IndexOfDelimitor(this.receivingBuffer,
secondDelimiterIndex, this.receivingBufferCount +
this.receivingBufferIndex - secondDelimiterIndex, true);
if (secondDelimiterIndex != -1)
{
if (firstDelimiterIndex == this.receivingBufferIndex)
{
firstDelimiterIndex += this.parser.LengthOfDelimitor();
}
//Cancello il contenuto del buffer fino al primo delimitatore.
this.receivingBufferCount -= (firstDelimiterIndex - this.receivingBufferIndex);
this.receivingBufferIndex = firstDelimiterIndex;
//Continuo l'elaborazione del buffer.
continue;
}
}
}
//Forzo il caricamento del buffer per evitare cicli infiniti.
break;
}
}
}
//Verifico lo stato del buffer.
if (this.receivingBufferCount == 0)
{
this.receivingBufferIndex = 0;
}
else if (this.receivingBufferIndex + this.receivingBufferCount == receivingBufferSize)
{
if (this.receivingBufferIndex == 0)
throw new OutOfMemoryException();
Array.Copy(this.receivingBuffer, this.receivingBufferIndex,
this.receivingBuffer, 0, this.receivingBufferCount);
this.receivingBufferIndex = 0;
}
}
}
}
catch (Exception exception)
{
Debug.Print("ExceptionResponseBuffer > " + this.receivingBufferCount);
Debug.Print(new string(ATParser.Bytes2Chars(this.receivingBuffer, this.receivingBufferIndex, this.receivingBufferCount)));
exception.ToString();
}
}
