- DefaultChannelPipeline detects such cases and creates an object called
'bridge' that works as a man-in-the-middle to deal with a race
condition
- Slight performance drop is observed but still faster than v3.
Couldn't find much from a profiler yet.
- Previously, head was a volatile field which is null at the beginning.
While iterating over the pipeline, if the loop hits null, it called
Channel.Unsafe explicitly.
- Instead, I created an outbound handler that redirects all requests
to the unsafe and made it a final field of the pipeline.
- As a result, DefaultChannelPipeline code became much simpler.
- SocketTestCombination generates all possible test combinations of
socket transports.
- SocketEchoTest iterates over the combinations and runs all tests
using reflection.
- The handler you specify with initializer() is actually simply added
to the pipeline and that's all. It's ChannelInitializer which does
additional work. For example, a user can specify just a single
handler with initializer() and it will still work. This is especially
common for Bootstrap, so I renamed initializer to handler, which makes
more sense.
- DefaultChannelPipeline uses this information to reject invalid buffer
access in inbound(Message|Byte)Buffer. Otherwise, a user can access
a message buffer when the channel is stream-oriented.
- Because ChannelType cannot be both STREAM and MESSAGE, catch-all
buffer has been removed to avoid confusion and unexpected behavior
(it's already causing headache.)
- As a result, codec embedder needs rework.
... just like we do with byte arrays. toByteBuffer() and
toByteBuffers() had an indeterministic behavior and thus it could not
tell when the returned NIO buffer is shared or not. nioBuffer() always
returns a view buffer of the Netty buffer. The only case where
hasNioBuffer() returns false and nioBuffer() fails is the
CompositeChannelBuffer, which is not very commonly used and *slow*.
- Add EventExecutor and make EventLoop extend it
- Add SingleThreadEventExecutor and MultithreadEventExecutor
- Add EventExecutor's default implementation
- Fixed an API design problem where there is no way to get non-bypass
buffer of desired type
- Add ChannelHandlerContext.eventLoop() for convenience
- Bootstrap and ServerBootstrap handles channel initialization failure
better
- More strict checks for missing @Sharable annotation
- A handler without @Sharable annotation cannot be added more than
once now.
- Added a new convenience method to ChannelInboundstreamHandlerAdapter
- EchoServerHandler uses the new method
- DefaultChannelPipeline calls inboundByteBuffer.discardReadBytes()
when it is sure there's no memory copy involved
- Really attempt to create a queue to determine LTQ can be initialized
in runtime, and cache the result
- Remove unnecessary Class<T> parameter in createQueue()
- Remove unused createQueue(Collection)
- LocalChannel and LocalServerChannel uses it to close themselves on
shutdown
- LocalEcho example does not call close() anymore because the channels
are closed automatically on shutdown
- Exception in this case makes a user less confusing
- To reduce the overhead of filling the stack trace,
NoSuchBufferException has a public pre-constructed instance.
- This is necessary because codec framework sometimes need to support
both type of outbound buffers.
- Fixed a bug where SpdyFrameEncoder did not handle ping messages
- Reduced memory copy in codec embedder (EmbeddedChannel)
- Renamed ChannelBootstrap to Bootstrap
- Renamed ServerChannelBootstrap to ServerBootstrap
- Moved bootstrap classes to io.netty.bootstrap as before
- Moved unfoldAndAdd() to a separate utility class
- Fixed a bug in unfoldAndAdd() where it did not handle ChannelBuffer
correctly
- Previous API did not support the pipeline which contains multiple
MessageToStreamEncoders because there was no way to find the closest
outbound byte buffer. Now you always get the correct buffer even if
the handler that provides the buffer is placed distantly.
For example:
Channel -> MsgAEncoder -> MsgBEncoder -> MsgCEncoder
Msg(A|B|C)Encoder will all have access to the channel's outbound
byte buffer. Previously, it was simply impossible.
- Improved ChannelBufferHolder.toString()
- AbstractChannel.doRead() is split into two versions so that the
implementation doesn't have to validate the buffer type.
- Optimized ChannelBufferHolder a little bit
- Reduced GC related with flush future notification
- Added FlushCheckpoint and DefaultChannelFuture implements it
opportunistically
-
- AbstractChannel now handles flushing a message buffer
- Cleaned up DatagramChannel interface
- Removed ProtocolFamily because a user can create an NIO
DatagramChannel and specify it as a constructor parameter
- UniqueName and UniqueKey constructors became public so that
I don't need to create a subclass every time.
- Replaced pipeline factories with initializers
- Ported essential parts related with HTTP to the new API
- Replaced ChannelHandlerAdapter.combine() with CombinedChannelHandler
- Fixed a bug where ReplayingDecoder does not notify the next handler
- Fixed a bug where ReplayingDecoder calls wrong callDecode() method
- Added a destination buffer as an argument to AbstractChannel.doRead()
for easier implementation
- Fixed a bug where NioSocketChannel did not try to increase the inbound
buffer size (moved the logic to AbstractChannel)
- UniqueKey removes the duplication between ChannelOption and
AttributeKey
- UniqueName provides common name collision check for AttributeKey,
ChannelOption, and Signal.
- Replaced ReplayError with Signal
- Replaced FrameDecoder and OneToOne(Encoder|Decoder) with:
- (Stream|Message)To(String|Message)(Encoder|Decoder)
- Moved the classes in 'codec.frame' up to 'codec'
- Fixed some bugs found while running unit tests
- It does not build a new Channel but just helps bootstrapping it.
- Added shutdown() method for simpler deinitialization
- ServerChannelBootstrap has shorter method names for the parent channel
- Added ChannelInitializer which is supposed to be used with the
builders
- Echo examples use ChannelBuilder and ServerChannelBuilder now
- Replace ChannelFuture.rethrowIfFailed() with sync*()
- Bug fixes
- AbstractChannel keeps the expected number of written bytes so that
the ChannelFuture of a flush() operation is notified on right timing.
- Added ChannelBufferHolder.size() to make this possible
- Added AbstractChannel.isCompatible() so that only compatible EventLoop
is accepted by a channel on registration
- Added ChannelOption to make channel options type-safe
- Moved writeSpinCount property to ChannelConfig and removed Nio*Config
- Miscellaneous cleanup
introducing
ChannelOption
- SingleThreadEventLoop now implements ScheduledExecutorService
- Scheduled tasks are automatically fetched into taskQueue by
pollTask() and takeTask()
- Removed MapBackedSet because Java 6 provides it
- Added ChannelBufferHolders.(inbound|outbound)BypassBuffer()
- The holder returned by these methods returns the next handler's
buffer. When a handler's new(Inbound|Outbound)Buffer returns
a bypass holder, your inboundBufferUpdated() and flush()
implementation should check if the buffer is a bypass and should not
modify the content of the buffer.
- Channel(Inbound|Outbound)?HandlerAdapter is now abstract.
- A user has to specify the exact inbound/outbound buffer type
- It's because there's no way to determine the best buffer type
- Implemented LoggingHandler using the new API.
- It doesn't dump received or sent messages yet.
- Fixed a bug where DefaultUnsafe.close() does not trigger deregister()
- Fixed a bug where NioSocketChannel.isActive() does not return false
when closed
- Made sure unnecessary interestOps are not OR'd
- Fixed a bug where DefaultChannelFuture.rethrowIfFailed() returns
silently if the future is not done yet - there's no ways to tell
the differences between failure and incompleteness.
- Optimized AbstractChannelBuffer.discardReadBytes()
- Split ChannelHandlerInvoker into ChannelInboundInvoker and
ChannelOutboundInvoker
- Channel implements ChannelOutboundInvoker
- ChannelOutboundInvoker.nextOut() is now out()
- ChannelOutboundHandlerContext.out() is now prevOut()
- Added the outbound operations without future
parameter to ChannelOutboundInvoker for user convenience
- All async operations which requires a ChannelFuture as a parameter
now returns ChannelFuture for user convenience
- Added ChannelFutureFactory.newVoidFuture() to allow a user specify
a dummy future that is of no use
- I'm unsure if it is actually a good idea to introduce it. It might
go away later.
- Made the contract of AbstractChannel.doXXX() much simpler and moved
all common code up to AbstractChannel.DefaultUnsafe
- Added Channel.isOpen()
- Fixed a bug where MultithreadEventLoop always shut down its child
event loops on construction
- Maybe more changes I don't remember :-)
- Remove large portion of code thanks to the new API
- SocketChannel implementations are instantiated without factories
- Retrofit the existing code with the new API
- Remove the classes and properties that are not necessary anymore
- Remove SingleThreadEventLoop.newRegistrationTask() and let
Channel.Unsafe handle registration by itself
- Channel.Unsafe.localAddress() and remoteAddress()
- JdkChannel is replaced by Channel.Unsafe.
- ChannelPipelineFactory will be replaced with sometime else when I
refactory the bootstrap package
- FileRegion is going away. A user can deregister a channel and perform
such operations by him/herself. If this turns out to be too
difficult, I'll introduce a new 'sendfile' operation to the outbound
handler.
- Channel now creates a ChannelPipeline by itself
I find no reason to allow a user to use one's own pipeline
implementation since I saw nobody does except for the cases where a
user wants to add a user attribute to a channel, which is now covered
by AttributeMap.
- Removed ChannelEvent and its subtypes because they are replaced by
direct method invocation.
- Replaced ChannelSink with Channel.unsafe()
- Various getter renaming (e.g. Channel.getId() -> Channel.id())
- Added ChannelHandlerInvoker interface
- Implemented AbstractChannel and AbstractServerChannel
- Some other changes I don't remember
- Add EventLoopException to wrap the exceptions while an event loop does
something
- Make EventLoop.register() return EventLoop so that the caller knows
the actual EventLoop that will handle the Channel even if the caller
called register() from MultithreadEventLoop
- Rename ChannelReader to ChannelInboundHandler
- Rename ChannelWriter to ChannelOutboundHandler
- Introduce ChannelBufferHolder instead of adding the common super type
of message buffers and byte buffers
- This is more type-safe and natural.
- Remove the notification methods for buffer closure (might add back
later when revisiting half-closed connection support)
- Merged LifeCycleAwareChannelHandler into ChannelHandler
- Replaced ChannelUpstreamHandler and ChannelDownstreamHandler with
ChannelReader and ChannelWriter
- These two new interfaces are much more type-safe than its ancestor.
- Simplified channel state model as described in #68
- Handler creates send/receive buffer.
- Previously, Netty created them, but it led to more memory copies and
inflexibility. I'm going to allow a handler to create a bounded
queue for example.
- It currently uses Queue<T> but I'll define a new interface and make
ChannelBuffer implement it (e.g. Queue<Byte>)
- Introduced AttributeMap which replaces attachments in Channel and
ChannelHandlerContext and ChannelLocal
Merge in fix for threading (related to #140 and #187). This also includes the new feature that allow to submit a Runnable that gets executed later in the io thread.
Split the project into the following modules:
* common
* buffer
* codec
* codec-http
* transport
* transport-*
* handler
* example
* testsuite (integration tests that involve 2+ modules)
* all (does nothing yet, but will make it generate netty.jar)
This commit also fixes the compilation errors with transport-sctp on
non-Linux systems. It will at least compile without complaints.
