| public Serialize ( byte buffer, int offset ) : int | ||
| buffer | byte | The buffer to serialize to |
| offset | int | The offset to begin serializing |
| return | int | |
/// <summary>
/// Sends a bvlc message
/// </summary>
/// <param name="mac">The BACnet mac address of the destination device</param>
/// <param name="message"></param>
private void _sendMessage(Mac mac, IBvlcMessage message)
{
// TODO: constant for buffer size, or
// lease buffers from the UDPAsyncServer instance
IPEndPoint ep = IPUtils.MacToIPEndPoint(mac);
byte[] buffer = new byte[1500];
int offset = 0;
BvlcHeader header = null;
header = new BvlcHeader();
header.Function = message.Function;
header.Length = 0;
offset = header.Serialize(buffer, offset);
offset = message.Serialize(buffer, offset);
// patch the length in now that it is known
buffer[2] = (byte)(offset << 8);
buffer[3] = (byte)(offset);
_server.Send(ep, buffer, offset);
}
/// <summary>
/// Sends a netgram out of this port
/// </summary>
/// <param name="netgram">The netgram to send</param>
public void SendNetgram(OutboundNetgram netgram)
{
IPEndPoint ep = null;
byte[] buffer = new byte[1500];
int offset = 0;
BvlcHeader header = new BvlcHeader();
IBvlcMessage message = null;
if (netgram.Destination.IsBroadcast())
{
ep = IPUtils.MacToIPEndPoint(_bbmdMac);
header.Function = FunctionCode.OriginalUnicastNpdu;
//header.Function = FunctionCode.OriginalBroadcastNpdu;
header.Length = 0;
message = new OriginalBroadcastNpduMessage();
}
else
{
ep = IPUtils.MacToIPEndPoint(netgram.Destination);
header.Function = FunctionCode.OriginalUnicastNpdu;
header.Length = 0;
message = new OriginalUnicastNpduMessage();
}
offset = header.Serialize(buffer, offset);
offset = message.Serialize(buffer, offset);
offset = netgram.Content.Serialize(buffer, offset);
// patch the length
buffer[2] = (byte)(offset << 8);
buffer[3] = (byte)(offset);
lock(this._lock)
{
if (_server != null)
{
_server.Send(ep, buffer, offset);
}
}
}