public override async Task SendMessageAsync(Stream stream, Message message,
CancellationToken cancellationToken)
{
using (var memory = new MemoryStream())
using (var writer = new BinaryWriter(memory, Encoding.UTF8))
{
// TODO: Remove this magic in V2, only for handshake
writer.Write(_magic);
writer.Write((byte)message.Command);
if (message is ICarryPayload messageWithPayload)
{
message.Flags |= MessageFlags.WithPayload;
byte[] payloadBuffer = _serializer.Serialize(messageWithPayload.Payload);
if (payloadBuffer.Length > 100)
{
using (MemoryStream ms = new MemoryStream())
{
using (GZipStream gzip = new GZipStream(ms, CompressionLevel.Fastest, true))
gzip.Write(payloadBuffer, 0, payloadBuffer.Length);
if (payloadBuffer.Length > ms.Length)
{
payloadBuffer = ms.ToArray();
message.Flags |= MessageFlags.Compressed;
}
}
}
writer.Write((byte)message.Flags);
writer.Write((uint)payloadBuffer.Length);
writer.Write(payloadBuffer);
}
else
{
message.Flags &= ~MessageFlags.WithPayload;
writer.Write((byte)message.Flags);
}
writer.Flush();
var buffer = memory.ToArray();
await stream.WriteAsync(buffer, 0, buffer.Length, cancellationToken);
}
}
public override async Task SendMessageAsync(Stream stream, Message message,
CancellationToken cancellationToken)
{
using (var memory = new MemoryStream())
using (var writer = new BinaryWriter(memory, Encoding.UTF8))
{
writer.Write(_magic);
writer.Write(Encoding.UTF8.GetBytes(message.Command.ToString().PadRight(12, ' ')));
var payloadBuffer = message is ICarryPayload messageWithPayload
? _serializer.Serialize(messageWithPayload.Payload)
: new byte[0];
writer.Write(payloadBuffer.Length);
writer.Write(CalculateChecksum(payloadBuffer));
writer.Write(payloadBuffer);
writer.Flush();
var buffer = memory.ToArray();
await stream.WriteAsync(buffer, 0, buffer.Length, cancellationToken);
}
}