public static void SendUdpWrite(byte command1, byte command2, byte[] payload, byte flag = 17, byte group = 0,
IPEndPoint ep = null, bool groupSend = false)
{
if (payload is null)
{
throw new ArgumentNullException(nameof(payload));
}
// If we don't specify an endpoint...talk to self
ep ??= new IPEndPoint(IPAddress.Parse("0.0.0.0"), 8888);
using var stream = new MemoryStream();
using var response = new BinaryWriter(stream);
// Magic header
response.Write((byte)0xFC);
// Payload length
response.Write((byte)(payload.Length + 5));
// Group number
response.Write(group);
// Flag, should be 0x10 for subscription, 17 for everything else
response.Write(flag);
// Upper command
response.Write(command1);
// Lower command
response.Write(command2);
// Payload
foreach (var b in payload)
{
response.Write(b);
}
var byteSend = stream.ToArray();
// CRC
response.Write(MsgUtils.CalculateCrc(byteSend));
var byteString = BitConverter.ToString(stream.ToArray());
var bytesString = byteString.Split("-");
var cmd = bytesString[4] + bytesString[5];
cmd = MsgUtils.Commands[cmd] ?? cmd;
if (flag == 0x30 | groupSend)
{
SendUdpBroadcast(stream.ToArray());
//if (cmd != "SUBSCRIBE" && cmd != "COLOR_DATA") LogUtil.Write($"localhost -> 255.255.255.255::{cmd} {flag}-{group}");
}
else
{
SendUdpUnicast(stream.ToArray(), ep);
//if (cmd != "SUBSCRIBE" && cmd != "COLOR_DATA") LogUtil.Write($"localhost -> {ep.Address}::{cmd} {flag}-{group}");
}
}
public static void SendUdpWrite(byte command1, byte command2, byte[] payload, byte flag = 17, byte group = 0,
IPEndPoint ep = null)
{
if (payload is null)
{
throw new ArgumentNullException(nameof(payload));
}
// If we don't specify an endpoint...talk to self
if (ep == null)
{
ep = new IPEndPoint(IPAddress.Parse("0.0.0.0"), 8888);
}
using var stream = new MemoryStream();
using var response = new BinaryWriter(stream);
// Magic header
response.Write((byte)0xFC);
// Payload length
response.Write((byte)(payload.Length + 5));
// Group number
response.Write(group);
// Flag, should be 0x10 for subscription, 17 for everything else
response.Write(flag);
// Upper command
response.Write(command1);
// Lower command
response.Write(command2);
// Payload
foreach (var b in payload)
{
response.Write(b);
}
var byteSend = stream.ToArray();
// CRC
response.Write(MsgUtils.CalculateCrc(byteSend));
if (flag == 0x30)
{
SendUdpBroadcast(stream.ToArray());
}
else
{
SendUdpUnicast(stream.ToArray(), ep);
}
}
