public async ValueTask Disconnect()
{
var c = DataLinkEncoder.EncodeDisconnect().ToSharedData();
await Write(c);
_dlc.Remove(this);
_outPipe.Writer.Complete();
}
private async Task <DataLink> CreateDataLinkAsClientAsync(IPEndPoint remote, Stream stream, DataLinkCollection dlc, ReadOnlyMemory <byte> args)
{
using (var cm = DataLinkEncoder.Encode(new DCConnectMessage(dlc.ServiceName, dlc.Name, LocalPort, args)))
{
await stream.WriteAsync(cm.Memory);
await stream.FlushAsync();
}
var decoder = new DataLinkDecoder();
// 1024 is enough for current connect message.
using (var owner = MemoryPool <byte> .Shared.Rent(1024))
{
int count = 0;
while (true)
{
count += await stream.ReadAsync(owner.Memory.Slice(count));
if (decoder.TryParseTransportMessage(new ReadOnlySequence <byte>(owner.Memory.Slice(0, count)), out var tm))
{
if (tm.Type != DataLinkMessageType.Connect)
{
stream.Close();
return(null);
}
var connect = decoder.ParseConnect(tm.Content);
if (connect.ServiceName != dlc.ServiceName)
{
stream.Close();
return(null);
}
if (connect.InstanceName == dlc.Name)
{
stream.Close();
return(null);
}
var moreData = owner.Memory.Slice(tm.Length, count - tm.Length);
return(dlc.CreateInternal(remote, stream, decoder, connect, moreData));
}
}
}
}
internal ValueTask ReplySyncNode(string name, IPAddress address, ushort port)
{
var c = DataLinkEncoder.Encode(new DCReplySyncNodeMessage(address, port, name)).ToSharedData();
return(Write(c));
}
internal ValueTask SyncNode()
{
var c = DataLinkEncoder.EncodeSyncNode().ToSharedData();
return(Write(c));
}
public ValueTask SendMessage(string channel, Memory <byte> payload)
{
var sharedData = DataLinkEncoder.Encode(new DCPayloadMessage(channel, payload)).ToSharedData();
return(Write(sharedData));
}