74f24a5c19
Motivation: Our http2 child channel implementation was not 100 % complete and had a few bugs. Beside this the performance overhead was non-trivial. Modifications: There are a lot of modifications, the most important.... * Http2FrameCodec extends Http2ConnectionHandler and Http2MultiplexCodec extends Http2FrameCodec to reduce performance heads and inter-dependencies on handlers in the pipeline * Correctly handle outbound flow control for child channels * Support unknow frame types in Http2FrameCodec and Http2MultiplexCodec * Use a consistent way how to create Http2ConnectionHandler, Http2FrameCodec and Http2MultiplexCodec (via a builder) * Remove Http2Codec and Http2CodecBuilder as the user should just use Http2MultipleCodec and Http2MultiplexCodecBuilder now * Smart handling of flushes from child channels to reduce overhead * Reduce object allocations * child channels always use the same EventLoop as the parent Channel to reduce overhead and simplify implementation. * Not extend AbstractChannel for the child channel implementation to reduce overhead in terms of performance and memory usage * Remove Http2FrameStream.managedState(...) as the user of the child channel api should just use Channel.attr(...) Result: Http2MultiplexCodec (and so child channels) and Http2FrameCodec are more correct, faster and more feature complete.
Netty Project
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.
Links
How to build
For the detailed information about building and developing Netty, please visit the developer guide. This page only gives very basic information.
You require the following to build Netty:
- Latest stable Oracle JDK 7
- Latest stable Apache Maven
- If you are on Linux, you need additional development packages installed on your system, because you'll build the native transport.
Note that this is build-time requirement. JDK 5 (for 3.x) or 6 (for 4.0+) is enough to run your Netty-based application.
Branches to look
Development of all versions takes place in each branch whose name is identical to <majorVersion>.<minorVersion>. For example, the development of 3.9 and 4.0 resides in the branch '3.9' and the branch '4.0' respectively.