Motivation: When a ChannelOutboundBuffer contains a series of entries whose messages are all empty buffers, EpollSocketChannel sometimes fails to remove them. As a result, the result of the write(EmptyByteBuf) is never notified, making the user application hang. Modifications: - Add ChannelOutboundBuffer.removeBytes(long) method that updates the progress of the entries and removes them as much as the specified number of written bytes. It also updates the reader index of partially flushed buffer. - Make both NioSocketChannel and EpollSocketChannel use it to reduce code duplication - Replace EpollSocketChannel.updateOutboundBuffer() - Refactor EpollSocketChannel.doWrite() for simplicity - Split doWrite() into doWriteSingle() and doWriteMultiple() - Do not add a zero-length buffer to IovArray - Do not perform any real I/O when the size of IovArray is 0 Result: Another regression is gone.
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
The 'master' branch is where the development of the latest major version lives on. The development of all other major versions takes place in each branch whose name is identical to its major version number. For example, the development of 3.x and 4.x resides in the branch '3' and the branch '4' respectively.