// Send an OSC message or bundle
public bool Send(OscData messageOrBundle)
{
// Usage: Send(new OscMessage("/address", arg1, arg2, arg3));
// Usage: Send(new OscBundle(OscBundle.TIMESTAMP_NOW, element1, element2, element3));
// Check parameters are valid
if (messageOrBundle == null)
{
throw new ArgumentNullException("messageOrBundle", "Message or bundle parameter is null.");
}
if (messageOrBundle.Buffer == null)
{
throw new ArgumentException("Message or bundle has null data.", "messageOrBundle");
}
if (messageOrBundle.Buffer.Length == 0)
{
throw new ArgumentException("Message or bundle has zero-length data.", "messageOrBundle");
}
// Send UDP packet
int sent = socket.SendTo(messageOrBundle.Buffer, endPoint);
// Return true if successful
return(sent == messageOrBundle.Buffer.Length);
}
// UDP listening thread
private void Listener()
{
while (!quitReceiver)
{
try
{
// Receive UDP packet
byte[] buffer = udpClient.Receive(ref endPoint);
if (quitReceiver)
{
break;
}
// Create OscData object
OscData messageOrBundle = null;
try
{
messageOrBundle = OscData.FromByteArray(buffer);
}
catch (Exception ex)
{
Console.Error.WriteLine("ERROR: Problem creating OscData from message (" + ex.Message + ").");
}
if (messageOrBundle != null)
{
if (messageOrBundle is OscMessage)
{
OscMessage message = (OscMessage)messageOrBundle;
DateTime timestamp = DateTime.UtcNow;
OnReceivedMessage(new OscMessageEventArgs(timestamp, message));
}
else if (messageOrBundle is OscBundle)
{
OscBundle bundle = (OscBundle)messageOrBundle;
DateTime timestamp = (bundle.Timestamp == OscData.TIMESTAMP_NOW) ? DateTime.UtcNow : OscData.DateTimeFromTimestamp(bundle.Timestamp);
OnReceivedBundle(new OscBundleEventArgs(timestamp, bundle));
}
}
}
catch (ThreadInterruptedException)
{
Console.Error.WriteLine("WARNING: ThreadInterruptedException in Listener...");
if (quitReceiver)
{
break;
}
}
catch (SocketException)
{
Console.Error.WriteLine("WARNING: SocketException in Listener...");
if (quitReceiver)
{
break;
}
}
}
udpClient.Close();
}
// Create an OSC bundle object for the specified binary buffer
public OscBundle(byte[] buffer)
{
string tag;
ulong timestamp = OscData.TIMESTAMP_NOW;
List <OscData> parts = new List <OscData>();
if (buffer == null)
{
throw new ArgumentNullException("buffer", "Buffer must not be null.");
}
using (MemoryStream stream = new MemoryStream(buffer))
{
tag = stream.ReadOscString();
if (tag != OscBundle.BUNDLE_ADDRESS)
{
throw new ArgumentException("Unrecognized bundle type.", "buffer");
}
timestamp = (ulong)stream.ReadOscLong();
while (stream.Position < stream.Length)
{
int length = stream.ReadOscInt();
if (length < 0)
{
throw new Exception("Bundle part has invalid length (<0).");
}
if (length > buffer.Length - stream.Position)
{
throw new Exception("Bundle part has invalid length.");
}
byte[] partBytes = new byte[length];
int offset = 0;
while (offset < length)
{
int read = stream.Read(partBytes, offset, length - offset);
if (read <= 0)
{
throw new Exception("EOF in bundle part.");
}
offset += read;
}
OscData part = OscData.FromByteArray(partBytes);
if (part == null)
{
break;
}
parts.Add(part);
}
}
this.Buffer = buffer;
this.Timestamp = timestamp;
this.Parts = parts.ToArray();
}
// Create a binary OSC message for the specified address from the specified parameters
public OscMessage(string address, IEnumerable <object> arguments)
{
// Check parameters are valid
if (address == null)
{
throw new ArgumentNullException("address", "Address must not be null.");
}
if (!address.StartsWith(OscMessage.ADDRESS_PREFIX.ToString()))
{
throw new ArgumentException("Address must begin with a forward-slash ('/').", "address");
}
if (address.IndexOfAny(OscMessage.ADDRESS_DISALLOWED_CHARS) >= 0)
{
throw new ArgumentException("Address contains one or more invalid characters.", "address");
}
if (arguments == null)
{
throw new ArgumentNullException("arguments", "Arguments array must not be null.");
}
// Store address and arguments
this.Address = address;
int numArguments = 0;
foreach (object o in arguments)
{
numArguments++;
}
this.Arguments = new object[numArguments];
numArguments = 0;
foreach (object o in arguments)
{
this.Arguments[numArguments++] = o;
}
// Memory stream for OSC message
using (MemoryStream stream = new MemoryStream())
{
// Write address
stream.WriteOscString(address);
// Write param type tag: ",iiii\0" (i = 32-bit integer)
StringBuilder typeTag = new StringBuilder();
typeTag.Append(','); // comma indicates start of parameter type tag list
foreach (object o in Arguments)
{
if (o is SByte || o is Byte || o is Int16 || o is UInt16 || o is Int32 || o is UInt32)
{
typeTag.Append(OscMessage.TYPE_INT);
} // signed two's complement int32 (big-endian)
else if (o is Int64 || o is UInt64)
{
typeTag.Append(OscMessage.TYPE_LONG);
} // (non-standard long int-64 type)
else if (o is Single)
{
typeTag.Append(OscMessage.TYPE_FLOAT);
} // IEEE 32-bit float (big-endian)
else if (o is Double)
{
typeTag.Append(OscMessage.TYPE_DOUBLE);
} // (non-standard double type)
else if (o is Char)
{
typeTag.Append(OscMessage.TYPE_CHAR);
} // (non-standard char type)
else if (o is String)
{
typeTag.Append(OscMessage.TYPE_STRING);
} // ASCII null-terminated string
else if (o is byte[])
{
typeTag.Append(OscMessage.TYPE_BLOB);
} // blob (byte[]) with size
else if (o is Boolean)
{
typeTag.Append((bool)o ? OscMessage.TYPE_TRUE : OscMessage.TYPE_FALSE);
} // true or false type
else if (o == null)
{
typeTag.Append(OscMessage.TYPE_NULL);
} // null
else if (o is DateTime)
{
typeTag.Append(OscMessage.TYPE_TIME);
} // time tag (RFC-1305 NTP Timestamp format - upper 32 bits is the number of seconds since midnight on January 1, 1900, lower 32 bits specify the fractional part of a second)
else if (o.Equals(typeof(Object)))
{
typeTag.Append(OscMessage.TYPE_IMPULSE);
} // impulse (not sure of a good .NET representation for this)
else if (o is Array)
{
throw new ArgumentException("Arrays not yet supported.", "arguments");
}
else
{
throw new ArgumentException("One or more arguments are of an unhandled type.", "arguments");
}
}
stream.WriteOscString(typeTag.ToString());
// Values (all values are big-endian and will be padded to 4 bytes)
foreach (object o in Arguments)
{
if (o is SByte)
{
stream.WriteOscInt((int)(SByte)o);
}
else if (o is Byte)
{
stream.WriteOscInt((int)(Byte)o);
}
else if (o is Int16)
{
stream.WriteOscInt((int)(Int16)o);
}
else if (o is UInt16)
{
stream.WriteOscInt((int)(UInt16)o);
}
else if (o is Int32)
{
stream.WriteOscInt((int)(Int32)o);
}
else if (o is UInt32)
{
stream.WriteOscInt((int)(UInt32)o);
}
else if (o is Int64)
{
stream.WriteOscLong((long)(Int64)o);
} // (non-standard long int-64 type)
else if (o is UInt64)
{
stream.WriteOscLong((long)(UInt64)o);
} // (non-standard long int-64 type)
else if (o is Single)
{
stream.WriteOscFloat((float)(Single)o);
}
else if (o is Double)
{
stream.WriteOscDouble((float)(Double)o);
} // (non-standard double type)
else if (o is Char)
{
stream.WriteOscInt((int)(Char)o);
} // (non-standard char type, written as int-32)
else if (o is String)
{
stream.WriteOscString((String)o);
}
else if (o is byte[])
{
stream.WriteOscBlob((byte[])o);
}
else if (o is Boolean)
{
} // true or false type -- neither has data
else if (o == null)
{
} // null type -- no data
else if (o is DateTime)
{
stream.WriteOscLong((long)OscData.TimestampFromDateTime((DateTime)o));
}
else if (o.Equals(typeof(Object)))
{
} // impulse (not sure of a good .NET representation for this)
else if (o is Array)
{
throw new ArgumentException("Arrays not yet supported.", "arguments");
}
else
{
throw new ArgumentException("One or more arguments are of an unhandled type.", "arguments");
}
}
// Return message bytes
Buffer = stream.ToArray();
}
}
// Create an OSC message object for the specified binary buffer
public OscMessage(byte[] buffer)
{
string address;
List <object> arguments = new List <object>();
if (buffer == null)
{
throw new ArgumentNullException("buffer", "Buffer must not be null.");
}
using (MemoryStream stream = new MemoryStream(buffer))
{
address = stream.ReadOscString();
if (address == null)
{
throw new ArgumentException("Missing address.", "buffer");
}
if (address[0] != OscMessage.ADDRESS_PREFIX)
{
throw new ArgumentException("Invalid address.", "buffer");
}
string typeTagString = stream.ReadOscString();
if (typeTagString.Length == 0 || typeTagString[0] != TYPE_PREFIX)
{
throw new ArgumentException("ERROR: This implementation requires the OSC type-tag string.", "buffer");
}
typeTagString = typeTagString.Substring(1); // Remove prefix
for (int i = 0; i < typeTagString.Length; i++)
{
switch (typeTagString[i])
{
// OSC 1.0 types
case OscMessage.TYPE_INT: arguments.Add(stream.ReadOscInt()); break;
case OscMessage.TYPE_FLOAT: arguments.Add(stream.ReadOscFloat()); break;
case OscMessage.TYPE_STRING: arguments.Add(stream.ReadOscString()); break;
case OscMessage.TYPE_BLOB: arguments.Add(stream.ReadOscBlob()); break;
// OSC 1.1 types
case OscMessage.TYPE_TRUE: arguments.Add((Boolean)true); break;
case OscMessage.TYPE_FALSE: arguments.Add((Boolean)false); break;
case OscMessage.TYPE_NULL: arguments.Add(null); break;
case OscMessage.TYPE_IMPULSE: arguments.Add(typeof(Object)); break; // Not really sure how to represent an 'impulse' object
case OscMessage.TYPE_TIME: arguments.Add(OscData.DateTimeFromTimestamp((ulong)stream.ReadOscLong())); break;
// Non-standard/optional types
case OscMessage.TYPE_SYMBOL: arguments.Add(stream.ReadOscString()); break;
case OscMessage.TYPE_LONG: arguments.Add(stream.ReadOscLong()); break;
case OscMessage.TYPE_DOUBLE: arguments.Add(stream.ReadOscDouble()); break;
case OscMessage.TYPE_CHAR: arguments.Add((char)stream.ReadOscInt()); break;
case OscMessage.TYPE_RGBA: arguments.Add(stream.ReadOscInt()); break;
case OscMessage.TYPE_MIDI: arguments.Add(stream.ReadOscInt()); break;
case OscMessage.TYPE_ARRAY_OPEN: break; // ignore for now
case OscMessage.TYPE_ARRAY_CLOSE: break; // ignore for now
default: throw new ArgumentException("Unknown OSC type tag '" + typeTagString[i] + "'", "buffer");
}
}
}
this.Buffer = buffer;
this.Address = address;
this.Arguments = arguments.ToArray();
}
// Send an OSC message or bundle
public bool Send(OscData messageOrBundle)
{
// Usage: Send(new OscMessage("/address", arg1, arg2, arg3));
// Usage: Send(new OscBundle(OscBundle.TIMESTAMP_NOW, element1, element2, element3));
// Check parameters are valid
if (messageOrBundle == null) { throw new ArgumentNullException("messageOrBundle", "Message or bundle parameter is null."); }
if (messageOrBundle.Buffer == null) { throw new ArgumentException("Message or bundle has null data.", "messageOrBundle"); }
if (messageOrBundle.Buffer.Length == 0) { throw new ArgumentException("Message or bundle has zero-length data.", "messageOrBundle"); }
// Send UDP packet
int sent = socket.SendTo(messageOrBundle.Buffer, endPoint);
// Return true if successful
return (sent == messageOrBundle.Buffer.Length);
}