private void ReceivedBytes(ref byte[] packetBytes, ref byte[] readBuffer)
{
// Fetch bytes from serial port
//int bytesToRead = Math.Min(serialPort.BytesToRead, readBuffer.Length); // Don't use BytesToRead as it is not mono compatible
int bytesToRead = readBuffer.Length;
bytesToRead = serialPort.Read(readBuffer, 0, bytesToRead);
Statistics?.BytesReceived.Increment(bytesToRead);
int processed = 0;
do
{
int packetLength;
processed += reader.ProcessBytes(readBuffer, processed, bytesToRead - processed, ref packetBytes, out packetLength);
if (packetLength <= 0)
{
continue;
}
OscPacket oscPacket = OscPacket.Read(packetBytes, packetLength);
if (Statistics != null && oscPacket.Error != OscPacketError.None)
{
Statistics.ReceiveErrors.Increment(1);
}
PacketRecived?.Invoke(oscPacket);
}while (processed < bytesToRead);
}
private void Receive_Callback(IAsyncResult ar)
{
try
{
// create an empty origin
EndPoint origin = UseIPv6 ? Helper.EmptyEndPointIPv6 : Helper.EmptyEndPoint;
int count = Socket.EndReceiveFrom(ar, ref origin);
Statistics?.BytesReceived.Increment(count);
OscPacket message = OscPacket.Read(buffer, count, (IPEndPoint)origin);
if (Statistics != null && message.Error != OscPacketError.None)
{
Statistics.ReceiveErrors.Increment(1);
}
if (receiveQueue.Count < messageBufferSize)
{
receiveQueue.Enqueue(message);
messageReceived.Set();
}
//lock (syncLock)
//{
// if (this.count < receiveQueue.Length)
// {
// receiveQueue[writeIndex] = message;
// writeIndex = NextWriteIndex;
// this.count++;
// // if this was the first message then signal
// if (this.count == 1)
// {
// messageReceived.Set();
// }
// }
//}
}
catch
{
}
if (State == OscSocketState.Connected)
{
// create an empty origin
EndPoint origin = UseIPv6 ? Helper.EmptyEndPointIPv6 : Helper.EmptyEndPoint;
Socket.BeginReceiveFrom(buffer, 0, buffer.Length, SocketFlags, ref origin, Receive_Callback, null);
}
}
/// <summary>
/// Read a single packet from the stream at the current position
/// </summary>
/// <returns>An osc packet</returns>
public OscPacket Read()
{
switch (Format)
{
case OscPacketFormat.Binary:
int length = Helper.ReadInt32(binaryReader);
byte[] bytes = new byte[length];
binaryReader.Read(bytes, 0, length);
return(OscPacket.Read(bytes, length));
case OscPacketFormat.Slip:
byte[] packetBytes = new byte[slipReader.BufferSize];
int packetLength = 0;
do
{
if (slipByteCount - slipByteIndex == 0)
{
slipByteIndex = 0;
slipByteCount = binaryReader.Read(slipByteCache, 0, slipByteCache.Length);
}
slipByteIndex += slipReader.ProcessBytes(slipByteCache, slipByteIndex, slipByteCount - slipByteIndex, ref packetBytes, out packetLength);
}while (packetLength <= 0 && EndOfStream == false);
return(packetLength > 0 ? OscPacket.Read(packetBytes, packetLength) : OscMessage.ParseError);
case OscPacketFormat.String:
string line = stringReader.ReadLine();
OscPacket packet;
if (OscPacket.TryParse(line, out packet) == false)
{
StringBuilder sb = new StringBuilder();
sb.AppendLine(line);
while (EndOfStream == false)
{
sb.Append(stringReader.ReadLine());
if (OscPacket.TryParse(sb.ToString(), out packet) == true)
{
return(packet);
}
sb.AppendLine();
}
return(OscMessage.ParseError);
}
return(packet);
default:
throw new Exception($@"Invalid OSC stream format ""{Format}"".");
}
}
