public async Task EncodeMessage(ISendState sender, TransportMessage message)
{
var contentBytes = _transportSerializer.Serialize(message.Body, message.Headers);
message.Headers[Headers.ContentLength] = contentBytes.Length.ToString();
message.Headers[Headers.MessageId] = message.Id.ToString("N");
var headerBuffer = new byte[65535];
headerBuffer[0] = (byte)TransportMessageType.Message;
var offset = 1;
var lastFeatureOffset = 0;
foreach (var header in message.Headers)
{
lastFeatureOffset = offset;
offset++; //ignore the feature flag for now.
var length = Encoding.UTF8.GetBytes(header.Key, 0, header.Key.Length, headerBuffer, offset + 1);
headerBuffer[offset] = (byte)length;
offset += length + 1;
length = Encoding.UTF8.GetBytes(header.Value, 0, header.Value.Length, headerBuffer, offset + 1);
headerBuffer[offset] = (byte)length;
offset += length + 1;
}
headerBuffer[lastFeatureOffset] = (byte)TransportHeaderFeatureFlags.EndOfHeaders;
await sender.Send(headerBuffer, 0, offset);
await sender.Send(contentBytes, 0, contentBytes.Length);
}
public async Task EncodeHandshake(ISendState sender, int version)
{
var buffer = new byte[1];
buffer[0] = (byte)version;
await sender.Send(buffer, 0, 1);
}
public async Task EncodeNak(ISendState sender, Guid messageId)
{
var buffer = messageId.ToByteArray();
var messageBuffer = new byte[buffer.Length + 1];
buffer[0] = (byte)TransportMessageType.Nak;
Buffer.BlockCopy(buffer, 0, messageBuffer, 1, buffer.Length);
await sender.Send(messageBuffer, 0, messageBuffer.Length);
}
public MessagingListenerClient(Socket socket, IMessageHandlerInvoker messageHandlerInvoker)
{
_socket = socket ?? throw new ArgumentNullException(nameof(socket));
_messageHandlerInvoker = messageHandlerInvoker;
// For inbound data
_readAwaitable = new SocketAwaitable(_readArgs);
_readArgs.SetBuffer(_readBuffer, 0, _readBuffer.Length);
_receiver = new SocketReceiver(socket, _readArgs, _readAwaitable, _readBuffer);
_decoder = new SimpleProtocolDecoder(_serializer);
// For outbound data
_encoder = new SimpleProtocolEncoder(_serializer);
_writeArgs = new SocketAsyncEventArgs();
_writeAwaitable = new SocketAwaitable(_writeArgs);
_sendState = new SocketSender(_socket, _writeArgs, _writeAwaitable);
}