This change rationalizes the 2 very similar abstractions that exist in Connections.Abstractions, IConnection and ConnectionContext. It also introduces an IConnectionFactory to SignalR that is used to create a new ConnectionContext for a HubConnection.
- HubConnection just completes both ends of the transport pipe instead of calling DisposeAsync.
- Implemented ConnectionContext on HttpConnection and added HttpConnectionFactory
- Updated tests
- There are too many issues and questions with respect to back pressure and the buffering policy we should use when the client being streamed to can't support the data being pushed via OnNext.
As a result, we're dropping support for IObservable but keeping ChannelReader and we'll eventually support IAsyncEnumerable when that makes it into the BCL.
- Add sample showing Observable -> ChannelReader adaption
- These are the finishing touches before we disable batching on the
C# client and on the server. We're changing the IHubProtocol interface to
modify the input buffer with what was consumed. We're also changing it
to parse a single message at a time to be match what output writing does.
- Added TryParseResponseMessage and made it look like TryParseRequestMessage
* Progress towards deleting Sockets.Abstractions
- Moved our custom DefaultConnectionContext to Sockets.Http and renamed it to HttpConnectionContext.
- Renamed ConnectionManager to HttpConnectionManager
- Use DefaultConnection in tests and benchmarks
- Delete ConnectionMetadata
- React to rename of EndPoint to ConnectionHandler
- Rename UseSockets to UseConnections
- Rename MapEndPoint to MapConnectionHandler
- Rename HttpSocketOptions to HttpConnectionOptions
- Don't allocate when enumerating connections
- Don't allocate tasks unless we truly go async
- Don't get the timestamp, just write the pings always (if there's no ongoing write)
- Track the time since last keep alive write instead of the last write
- ValueTask all the things!
- Renamed HubConnectionList to HubConnectionStore
- Introduced Utf8BufferTextReader that writes buffers directly into
the char[] allocated by JSON.NET when reading via the JsonReader.
- Use IArrayPool implementation over ArrayPool<char> when reading
incomming messages.
- Replaced JToken parsing with manual parsing using JsonTextReader.
- Added tests for parsing incoming JSON messages with out of order
properties.
- Make access to message headers lazy
- Changed IHubProtocol.TryParseMessage to be ReadOnlyMemory<byte> instead of ReadOnlySpan<byte>
- This PR attempts to move things where they are needed instead of where they
happened to be used. As a result we should now have Sockets.Abstractions and
Sockets down to the minimal set of things required to make them run.
Sockets.Abstractions should go away in favor of Protocol.Abstractions and
Sockets contains the EndPoint abstraction and related types.
- Moved ConnectionManager and friends to
Sockets.Http.
-Removed Sockets and moved everything into Sockets.Abstractions.
- Moved DefaultConnection and put it in Sockets.Abstractions.
* Tackling some low hanging performance fruit
- Use native Memory/Span APIs on Stream and WebSocket in .NET Core 2.1
- Remove double copying in formatters
- Implemented custom HttpContent over ReadOnlyBuffer<byte>
* Remove the Channel<HubMessage> from the HubConnectionContext
- Replace the channel with a single lock around the pipewriter. Since writes are always synchronous, the lock is held for a very short time.
- We were only using them in this scenario for handling multiple producers (the hub output, the keep alive ping and the broadcast).
- Handle the scenario where there's back pressure (when we use pipes that are bounded) and give callers a single task representing when back pressure is released.
- Handle synchronous exceptions in RedisHubLifetimeManager
- Fixed benchmarks
Ben Adams
James Newton-King
David Fowler
Andrew Stanton-Nurse
BrennanConroy
Mikael Mengistu
Pavel Krymets
Pranav K
Pawel Kadluczka