public static TransportMessage ReadTransportMessage(this BinaryReader reader)
{
var metadata = new VolatileTransportMetadata();
var signal = BitConverter.ToInt32(reader.ReadBytes(4), 0);
if (signal != 0)
{
throw new Exception("Message received with signal code " + signal.ToString());
}
var frameCount = BitConverter.ToInt32(reader.ReadBytes(4), 0);
for (var a = 0; a < frameCount; a++)
{
var idLength = BitConverter.ToInt32(reader.ReadBytes(4), 0);
var encodedId = reader.ReadBytes(idLength);
var dataLength = BitConverter.ToInt32(reader.ReadBytes(4), 0);
var data = reader.ReadBytes(dataLength);
metadata.Frames.Add(new VolatileTransportMetadataFrame(Encoding.UTF8.GetString(encodedId), data));
}
var payloadLength = BitConverter.ToInt32(reader.ReadBytes(4), 0);
var payload = reader.ReadBytes(payloadLength);
return(new TransportMessage(payload, metadata));
}
public override async Task WriteData(ITransport transport, string messageId, ITransportMetadata metadata, Action <IProtocolWriter> handler)
{
using (var buffer = new MemoryStream())
{
var writer = new MessagePackProtocolWriter(buffer);
handler(writer);
buffer.Position = 0;
var data = buffer.ToArray();
await transport.Send(messageId, new TransportMessage(data, VolatileTransportMetadata.FromMetadata(metadata)));
}
}
public override async Task <Func <Func <IProtocolReader, ITransportMetadata, TResult>, Task <TResult> > > WriteAndReadData <TResult>(ITransport transport, ITransportMetadata metadata, Action <IProtocolWriter> handler)
{
Func <Task <TransportMessage> > receiveHandler;
using (var buffer = new MemoryStream())
{
var writer = new MessagePackProtocolWriter(buffer);
handler(writer);
buffer.Position = 0;
var data = buffer.ToArray();
receiveHandler = await transport.SendAndReceive(new TransportMessage(data, VolatileTransportMetadata.FromMetadata(metadata)));
}
return(new Func <Func <IProtocolReader, ITransportMetadata, TResult>, Task <TResult> >(async(readHandler) => {
var receivedData = await receiveHandler();
var buffer = new MemoryStream(receivedData.Payload);
var reader = new MessagePackProtocolReader(buffer);
return readHandler(reader, receivedData.Metadata);
}));
}
