/// <summary>
///
/// </summary>
/// <param name="iftAr"></param>
void MsgPipeReadComplate(IAsyncResult iftAr)
{
int bytes = 0;
CanMessage[] frames;
//lock (LockObj) Ezt nem lehet lock-ni, mivel adatvesztés következik be.!
{
if (!this.isAbort)
{
try
{
bytes = Usb.Pipes[USB_MSG_IN_ADDR].EndRead(iftAr);
}
catch (Exception ex)
{
/*Itt valahogy jelezni kell, hogy ha hibábval ért véget a pipe olvasása*/
/*Ha itt hiba történt akkor vége.*/
LasException = ex;
this.isAbort = true;
}
}
if (bytes != 0)
{
CanMessage.MsgPacketToCanFrames(rxMsgPacketBuffer, bytes, out frames);
for (int i = 0; i < frames.Length; i++)
{
RxCanMsgAbsTime = (frames[i].TimestampTick * 10000) + RxCanMsgAbsTime;
frames[i].TimestampTick = RxCanMsgAbsTime;
if (IncomingMsgQueue != null)
{
IncomingMsgQueue.Enqueue(frames[i]);
}
}
if (_asyncReadBeginResult != null && !_asyncReadBeginResult.IsCompleted)
{
if (IncomingMsgQueue.Count >= _readBeginLength)
{
Read(_readBeginFrameArray, _readBeginOffset, _readBeginLength);
_asyncReadBeginResult.OnCompletion(false, null, _readBeginLength, true);
}
}
}
if (!this.isAbort)
{
Usb.Pipes[USB_MSG_IN_ADDR].BeginRead(rxMsgPacketBuffer, 0, UsbMsgInEpSize, _asynReadCpltCallback, null);
}
}
}
public IAsyncResult BeginRead(CanMessage[] frames, int offset, int length, AsyncCallback userCallback, object stateObject)
{
if (!IsConnected)
{
throw new CanAdapterException("Adapter is Disconnected. Code:-8604."); //Doc
}
if (!_isOpen)
{
throw new CanAdapterException("Bus is Closed. Code:-8605"); //Doc
}
if (frames == null)
{
throw new ArgumentNullException("Frame Buffer cannot be null. Code:-8606."); //Doc
}
_readBeginFrameArray = frames;
_readBeginLength = length;
_readBeginOffset = offset;
_asyncReadBeginResult = new CanAsyncResult(userCallback, stateObject);
try
{
//Van annyi elem, hogy most azonnal vége legyen.
if (IncomingMsgQueue.Count >= length)
{
Read(_readBeginFrameArray, offset, length);
_asyncReadBeginResult.OnCompletion(true, null, length, true);
}
}
catch (Exception)
{
_asyncReadBeginResult.Dispose();
throw;
}
return(_asyncReadBeginResult);
}