4bba7526e2
Motivation: Currently the ByteBuf created as a result of retained[Slice|Duplicate] maintains its own reference count, and when this reference count is depleated it will release the ByteBuf returned from unwrap(). The unwrap() buffer is designed to be the 'root parent' and will skip all intermediate layers of buffers. If the intermediate layers of buffers contain a retained[Slice|Duplicate] then these reference counts will be ignored during deallocation. This may lead to deallocating the 'root parent' before all derived pooled buffers are actually released. This same issue holds if a retained[Slice|Duplicate] is in the heirachy and a 'regular' slice() or duplicate() buffer is created. Modifications: - AbstractPooledDerivedByteBuf must maintain a reference to the direct parent (the buffer which retained[Slice|Duplicate] was called on) and release on this buffer instead of the 'root parent' returned by unwrap() - slice() and duplicate() buffers created from AbstractPooledDerivedByteBuf must also delegate reference count operations to their immediate parent (or first ancestor which maintains an independent reference count). Result: Fixes https://github.com/netty/netty/issues/5999
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.