Commit Graph

373 Commits

Author SHA1 Message Date
Trustin Lee
fa277eda20 Fix reported leaks 2013-06-13 15:24:19 +09:00
Trustin Lee
427d9c4bf2 Fix test failures and reported leaks 2013-06-13 15:18:11 +09:00
Trustin Lee
01d9f10af6 Remove the volatile modifiers where they are unnecessary 2013-06-13 14:43:39 +09:00
Trustin Lee
6d1cd0d0cd ReferenceCountException -> IllegalReferenceCountException 2013-06-13 14:00:15 +09:00
Trustin Lee
7eb0f6105d Fix memory leaks 2013-06-13 13:32:47 +09:00
Trustin Lee
175526b6bd Move ReferenceCounted and AbstractReferenceCounted to io.netty.util
- Fixes #1441
- Also move and rename IllegalBufferAccessException to ReferenceCountException
- Prettier reference count exception messages
2013-06-13 13:14:21 +09:00
Trustin Lee
283feda119 Reduce even more garbage by exposing ByteBuf.internalNioBuffer() 2013-06-13 12:40:26 +09:00
Norman Maurer
78c6925921 Clearify when you need to call retain() 2013-06-12 23:13:36 +02:00
Norman Maurer
68c737f0c0 Optimize the way messages are added from one MessageList to another one 2013-06-10 14:07:25 +02:00
Norman Maurer
3be25694d0 Add ChannelHandlerContext.isRemoved() to easily detect the removal of a ChannelHandler while in a method. 2013-06-10 11:16:05 +02:00
Trustin Lee
14158070bf Revamp the core API to reduce memory footprint and consumption
The API changes made so far turned out to increase the memory footprint
and consumption while our intention was actually decreasing them.

Memory consumption issue:

When there are many connections which does not exchange data frequently,
the old Netty 4 API spent a lot more memory than 3 because it always
allocates per-handler buffer for each connection unless otherwise
explicitly stated by a user.  In a usual real world load, a client
doesn't always send requests without pausing, so the idea of having a
buffer whose life cycle if bound to the life cycle of a connection
didn't work as expected.

Memory footprint issue:

The old Netty 4 API decreased overall memory footprint by a great deal
in many cases.  It was mainly because the old Netty 4 API did not
allocate a new buffer and event object for each read.  Instead, it
created a new buffer for each handler in a pipeline.  This works pretty
well as long as the number of handlers in a pipeline is only a few.
However, for a highly modular application with many handlers which
handles connections which lasts for relatively short period, it actually
makes the memory footprint issue much worse.

Changes:

All in all, this is about retaining all the good changes we made in 4 so
far such as better thread model and going back to the way how we dealt
with message events in 3.

To fix the memory consumption/footprint issue mentioned above, we made a
hard decision to break the backward compatibility again with the
following changes:

- Remove MessageBuf
- Merge Buf into ByteBuf
- Merge ChannelInboundByte/MessageHandler and ChannelStateHandler into ChannelInboundHandler
  - Similar changes were made to the adapter classes
- Merge ChannelOutboundByte/MessageHandler and ChannelOperationHandler into ChannelOutboundHandler
  - Similar changes were made to the adapter classes
- Introduce MessageList which is similar to `MessageEvent` in Netty 3
- Replace inboundBufferUpdated(ctx) with messageReceived(ctx, MessageList)
- Replace flush(ctx, promise) with write(ctx, MessageList, promise)
- Remove ByteToByteEncoder/Decoder/Codec
  - Replaced by MessageToByteEncoder<ByteBuf>, ByteToMessageDecoder<ByteBuf>, and ByteMessageCodec<ByteBuf>
- Merge EmbeddedByteChannel and EmbeddedMessageChannel into EmbeddedChannel
- Add SimpleChannelInboundHandler which is sometimes more useful than
  ChannelInboundHandlerAdapter
- Bring back Channel.isWritable() from Netty 3
- Add ChannelInboundHandler.channelWritabilityChanges() event
- Add RecvByteBufAllocator configuration property
  - Similar to ReceiveBufferSizePredictor in Netty 3
  - Some existing configuration properties such as
    DatagramChannelConfig.receivePacketSize is gone now.
- Remove suspend/resumeIntermediaryDeallocation() in ByteBuf

This change would have been impossible without @normanmaurer's help. He
fixed, ported, and improved many parts of the changes.
2013-06-10 16:10:39 +09:00
Luke Wood
c1cbe8bec3 Clarify SnappyFramedDecoder javadoc to make it as clear as possible regarding the default settings 2013-05-20 17:31:04 +01:00
Norman Maurer
81e3c1719a [maven-release-plugin] prepare for next development iteration 2013-05-18 09:59:13 +02:00
Norman Maurer
99caefdf39 [maven-release-plugin] prepare release netty-4.0.0.CR3 2013-05-18 09:57:11 +02:00
Trustin Lee
e58af1bc94 Readability / Fix inception year 2013-05-17 17:59:13 +09:00
kxbmap
3a5aa12000 Add LengthFieldPrepender.lengthAdjustment parameter 2013-05-17 17:58:53 +09:00
Luke Wood
f841056752 Fix SnappyFramedDecoder checksum validation and add a pair of suitable unit tests 2013-05-16 14:10:54 +01:00
Trustin Lee
80f4c0b334 Merge SnappyChecksumUtil into Snappy and make calculateChecksum() public / Overall clean up 2013-05-09 15:23:56 +09:00
Norman Maurer
c43950a03f [maven-release-plugin] prepare for next development iteration 2013-05-08 18:19:51 +02:00
Norman Maurer
ae76502040 [maven-release-plugin] prepare release netty-4.0.0.CR2 2013-05-08 18:19:38 +02:00
Norman Maurer
108c7d9b44 No need to pass the next BufType to the constructor 2013-05-06 07:46:26 +02:00
Norman Maurer
73c35aef4e [#1309] Make sure ReplayDecoder respect isSingleDecode()
* This could cause for example corrupt WebSocketFrame's if they was written from the server
  to the client directly after it send the handshake response.
2013-04-25 08:32:07 +02:00
Trustin Lee
7884574c7b Remove freeInboundBuffer() and freeOutboundBuffer() which has no value
- Fixes #1308

freeInboundBuffer() and freeOutboundBuffer() were introduced in the early days of the new API when we did not have reference counting mechanism in the buffer. A user did not want Netty to free the handler buffers had to override these methods.

However, now that we have reference counting mechanism built into the buffer, a user who wants to retain the buffers beyond handler's life cycle can simply return the buffer whose reference count is greater than 1 in newInbound/OutboundBuffer().
2013-04-25 09:15:55 +09:00
Trustin Lee
1b3d7f5325 Make sure handlerAdded() is called before forwarding the buffer content of the removed handler
- Added a test case that reproduces the problem in ReplayingDecoderTest
- Call newHandler.handlerAdded() *before* oldHandler.handlerRemoved() to ensure newHandlerAdded() is called before forwarding the buffer content of the old handler in replace0().
2013-04-24 19:25:43 +09:00
Trustin Lee
5dd35448a2 Add a failing test that will pass once #1306 is fixed 2013-04-24 18:47:36 +09:00
Trustin Lee
b5989e2449 Reduce exception instantiation overhead in SslHandler / Reduce unnecessary empty array creation
- Added EmptyArrays as an internal utility class
2013-04-24 09:32:53 +09:00
Trustin Lee
8e2e22c270 Change the thread model slightly for new/freeInbound/OutboundBuffer() for future improvement
- Related: #1283
- Make ReplayingDecoder work with the modified thread model
2013-04-23 13:06:27 +09:00
Norman Maurer
9c4bfa44d9 [#1294] Make sure ByteBuf is released once written to channel 2013-04-22 11:04:56 +02:00
Norman Maurer
ca5554dfe7 [#1236] Fix problem where adding a new ChannelHandler could block the eventloop
This change also introduce a few other changes which was needed:
 * ChannelHandler.beforeAdd(...) and ChannelHandler.beforeRemove(...) were removed
 * ChannelHandler.afterAdd(...) -> handlerAdded(...)
 * ChannelHandler.afterRemoved(...) -> handlerRemoved(...)
 * SslHandler.handshake() -> SslHandler.hanshakeFuture() as the handshake is triggered automatically after
   the Channel becomes active
2013-04-19 07:00:50 +02:00
Trustin Lee
4a5dc32224 Fix a bug where LineBasedFrameDecoder does not handle too long lines correctly
- Related: #1287
2013-04-19 13:04:20 +09:00
Andrei Pozolotin
a3e760a003 fix #1234 - duplicate package-info.java errors in eclipse requires release of netty-build v 19 and netty-parent update. 2013-04-05 05:38:05 +09:00
Trustin Lee
6dfa455f9e Fix compiler warnings 2013-04-04 16:31:41 +09:00
Trustin Lee
c03179c81c Clean up try/catch blocks / Prefer 'throw' to 'fireExceptionCaught' 2013-04-04 15:00:07 +09:00
Trustin Lee
3b9994455a Saner field order 2013-04-04 14:53:32 +09:00
Trustin Lee
03955428bc Ensure BufUtil.release() is called even if writeBytes() fails in writeAndRelease() 2013-04-04 14:50:25 +09:00
Trustin Lee
015e60b00f Clean up catch blocks
- No need to have nested try blocks because the catch block catches everything and rethrows it
- No need to do instanceof-checks
2013-04-04 14:48:30 +09:00
Trustin Lee
c25fd78ca0 No need to have nested try blocks
.. because the catch block catches everything and rethrows it
2013-04-04 14:44:52 +09:00
Trustin Lee
788b88b7af Make sure to release the buffer when it's written to the next byte buffer
.. otherwise it will leak.
2013-04-04 14:37:54 +09:00
Trustin Lee
46540578fc Optimize OutputMessageBuf.drainToNextInbound/Outbound()
- Return early when the buffer is empty
- Keep only the number of byte buffers
- Remove unnecessary null check in the loop (because we know buffer is not empty at certain point)
2013-04-04 14:32:48 +09:00
Trustin Lee
8a672c2800 Proper assertion instead of blindly clearing the OutputMessageBuf 2013-04-04 14:11:24 +09:00
Norman Maurer
7ee2adb587 Move drain logic to OutputMessageBuf and optimize it as far as possible 2013-04-03 18:52:57 +02:00
Norman Maurer
1675e61f5b Share same ThreadLocal for all decoder/encoders to minimize memory usage 2013-04-03 18:19:35 +02:00
Norman Maurer
94ef7dc1b9 Optimize to minimize volatile reads to access next buffer in codec framework 2013-04-03 18:03:55 +02:00
Norman Maurer
9828267165 Fix performance regression which was caused by calling the fireInboundBufferUpdated() a way to often
* Also use a ThreadLocal for the decoder buffer to safe space as it is cheap
2013-04-03 17:07:52 +02:00
Norman Maurer
af4b71a00e Remove special handling of Object[] in codec framework (a.k.a unfolding)
- Fixes #1229
- Primarily written by @normanmaurer and revised by @trustin

This commit removes the notion of unfolding from the codec framework
completely.  Unfolding was introduced in Netty 3.x to work around the
shortcoming of the codec framework where encode() and decode() did not
allow generating multiple messages.

Such a shortcoming can be fixed by changing the signature of encode()
and decode() instead of introducing an obscure workaround like
unfolding.  Therefore, we changed the signature of them in 4.0.

The change is simple, but backward-incompatible.  encode() and decode()
do not return anything.  Instead, the codec framework will pass a
MessageBuf<Object> so encode() and decode() can add the generated
messages into the MessageBuf.
2013-04-03 21:44:54 +09:00
Norman Maurer
2e3b8f13ea Revert "Let ProtobufEncoder extend MessageToByteEncoder which makes more sense. Related to [#1222]"
This reverts commit 6a9d055f57.
2013-04-02 07:56:49 +02:00
Norman Maurer
6a9d055f57 Let ProtobufEncoder extend MessageToByteEncoder which makes more sense. Related to [#1222] 2013-04-02 07:17:45 +02:00
Norman Maurer
a0fca93128 [#1222] Correctly handle the case when a MessageToMessageEncoder encodes to ByteBuf and the next outbound buffer is of type ByteBuf 2013-04-02 07:17:10 +02:00
Prajwal Tuladhar
05850da863 enable checkstyle for test source directory and fix checkstyle errors 2013-03-30 13:18:57 +01:00
Norman Maurer
59012390f6 Fix version numbering 2013-03-25 08:01:11 +01:00
Norman Maurer
7d7b676eeb [maven-release-plugin] prepare for next development iteration 2013-03-22 15:20:35 +01:00
Norman Maurer
60fc7dac4d [maven-release-plugin] prepare release netty-4.0.0.CR1 2013-03-22 15:20:11 +01:00
Trustin Lee
8b722d29a7 Add constructor parameters that do not perform type parameter auto-detection for the languages without type parameters
- Fixes #1177
- Add TypeParameterMatcher.get(parameterType)
- Add alternative constructors
2013-03-21 16:11:47 +09:00
Trustin Lee
97f2fa7341 Allow a user specify the byte order of the length field for LengthFieldBasedFrameDecoder
- Fixes #1164
2013-03-18 13:58:48 +09:00
Trustin Lee
2a87950784 [maven-release-plugin] prepare for next development iteration 2013-03-16 18:41:36 +09:00
Trustin Lee
adfb29330b [maven-release-plugin] prepare release netty-4.0.0.Beta3 2013-03-16 18:40:59 +09:00
Trustin Lee
e3d10ad493 Break the decode loop if decoder raises an exception to give a chance to close the connection to a user handler
- Fixes: #1161
2013-03-16 18:28:58 +09:00
Michael Nitschinger
b186342f52 Fixing 2 typos in codec documentation. 2013-03-16 17:18:21 +09:00
Trustin Lee
289d474a23 Make ByteArrayEncoder sharable 2013-03-14 17:44:32 +09:00
Trustin Lee
42e31a4445 Revert "[#1131] Codecs must not cache next buffer during processing"
This reverts commit b1775a3223.
2013-03-13 15:17:06 +09:00
Trustin Lee
c25513d5e1 Upgrade to protobuf 2.5 and take advantage of MessageLite.getParserFromType()
- also fall back to MessageBuilder if getParserFromType() is not available.
2013-03-12 16:25:35 +09:00
Trustin Lee
559b860ff6 Fix grammar 2013-03-12 15:23:09 +09:00
Trustin Lee
397830d238 Allow SingleOutboundMessageHandler.beginFlush() to reject the flush request by returning false / Replace PartialFlushException with IncompleteFlushException which is more correct. 2013-03-12 15:20:46 +09:00
Trustin Lee
c660002b4e Add DecoderResult.UNFINISHED to represent the case where a decoder generated a message that was not decoded completely / Remove partial failure in DecoderResult which is not very useful but confusing 2013-03-12 13:04:53 +09:00
Norman Maurer
806e9b1f8c Make sure we handle outbound messages of type ByteBuf special 2013-03-11 08:59:00 +09:00
Norman Maurer
b1775a3223 [#1131] Codecs must not cache next buffer during processing 2013-03-08 15:38:17 +01:00
Norman Maurer
fd3f923b52 Allow to specify the used buffer type for ChannelInboundByteBufHandler and ChannelOutboundByteBufHandler by configuration. As default it tries to use a direct ByteBuf 2013-03-08 08:20:46 +01:00
Trustin Lee
a9a29bdf3f Use I/O buffer whenever possible now that our direct buffers are as fast as heap buffers 2013-03-08 11:21:08 +09:00
Trustin Lee
88df53ec1a Fix infinite recursion when transferring data between different type of buffers / Add ByteBuf.hasMemoryAddress/memoryAddress()
- Fixes: #1109 and #1110
2013-03-06 18:22:16 +09:00
Trustin Lee
a8a7c4f576 Provide a way to implement an ChannelInbound/OutboundMessageHandler conveniently without extending an adapter class
- Add ChannelHandlerUtil and move the core logic of ChannelInbound/OutboundMessageHandler to ChannelHandlerUtil
- Add ChannelHandlerUtil.SingleInbound/OutboundMessageHandler and make ChannelInbound/OutboundMessageHandlerAdapter implement them.  This is a backward incompatible change because it forces all handler methods to be public (was protected previously)
- Fixes: #1119
2013-03-05 17:27:53 +09:00
Norman Maurer
42dad6d9d4 [#1106] Also handle FileRegion in ByteToByteEncoder and SslHandler 2013-02-28 19:40:34 +01:00
Trustin Lee
49aa907bd0 [maven-release-plugin] prepare for next development iteration 2013-02-26 16:55:07 -08:00
Trustin Lee
5026c2f359 [maven-release-plugin] prepare release netty-4.0.0.Beta2 2013-02-26 16:54:53 -08:00
Trustin Lee
671f9d48d4 Use ConcurrentHashMapV8 wherever possible
- Fixes #1052
2013-02-26 15:54:51 -08:00
Luke Wood
e45db60b5e [#1069] Snappy decoding fixes
* Correct reading offset of 1-byte-offset copies
* Keep track of how much we've written so far in order to validate offsets
* Uncomment and reduce number of tests
2013-02-25 16:36:50 +00:00
Trustin Lee
58c72acd42 Add more failing tests to SnappyIntegrationTest 2013-02-22 10:06:24 -08:00
Luke Wood
f6d88ca5bf Use Short.MAX_VALUE, as it accurately represents what we're trying to limit ourselves to 2013-02-22 15:23:47 +00:00
Luke Wood
0bfa9159e3 Do not attempt to compress trailing data that is less than the MIN_COMPRESSIBLE_LENGTH 2013-02-22 14:24:50 +00:00
Luke Wood
7a8e9d7993 Ensure that at least 4 bytes are remaining in input buffer when compiling our hash table in search of duplicates, and restrict encoded frame sizes to 32,767 bytes (2^15 - 1) 2013-02-22 14:24:50 +00:00
Trustin Lee
17641d52fb Integrate @timboudreau's SnappyIntegrationTest improvements 2013-02-21 18:38:58 -08:00
Norman Maurer
c93f5afa99 [#1012] Cleanup 2013-02-20 12:52:55 +01:00
Atsuhiko Yamanaka
8fdf788cbd [#1012] Replace forked jzlib with official jzlib and add a test. 2013-02-20 12:49:05 +01:00
Trustin Lee
d68a04a879 [maven-release-plugin] prepare for next development iteration 2013-02-14 12:56:24 -08:00
Trustin Lee
59e638f8f5 [maven-release-plugin] prepare release netty-4.0.0.Beta1 2013-02-14 12:56:15 -08:00
Trustin Lee
1011227b88 Remove apiviz tags - we are focusing on user guide instead and putting diagrams there 2013-02-14 12:09:16 -08:00
Norman Maurer
6983f704c0 Fix unreplayble error 2013-02-14 11:18:12 +01:00
Norman Maurer
5370573400 Change ReferenceCounted.retain* to return itself and so allow method chaining 2013-02-14 07:39:44 +01:00
Trustin Lee
53c27ef5ae More robust type parameter detection
- Also removed unnecessary constructors which were added due to incomplete type parameter detection logic
2013-02-13 19:02:55 -08:00
Luke Wood
c1783cc8d3 More fixes to snappy: * Make Snappy.decode stateful instead of relying on the uncompressed length being equal to the compressed length * Correctly handle copies where offset < length * Take copies from the output buffer in decoding * Make the maximum encoded chunk size 32kB for compressed data 2013-02-11 15:05:27 +01:00
Trustin Lee
b4f4b95739 Move io.netty.logging to io.netty.internal / Move Signal out of internal because we use it in Channel*MessageAdapters 2013-02-11 20:08:18 +09:00
Trustin Lee
a2e5cd94be Prettify APIviz / Tighten visibility / Move subclasses to top level / Remove unused UnknownSocksMessage 2013-02-11 19:42:23 +09:00
Trustin Lee
6c7bd6d174 Tighten visibility 2013-02-11 18:42:31 +09:00
Trustin Lee
d5105834d6 Hide SnappyChecksumUtil 2013-02-11 18:41:37 +09:00
Trustin Lee
2f1a0b0593 Remove freeInbound/OutboundMessage(), replaced by ReferenceCounted.retain/release()
- Related: #1029
2013-02-10 13:31:31 +09:00
Trustin Lee
b9996908b1 Implement reference counting
- Related: #1029
- Replace Freeable with ReferenceCounted
- Add AbstractReferenceCounted
- Add AbstractReferenceCountedByteBuf
- Add AbstractDerivedByteBuf
- Add EmptyByteBuf
2013-02-10 13:10:09 +09:00
Trustin Lee
46a249a26b Add more failing tests for Snappy codec 2013-02-10 00:33:41 +09:00
Trustin Lee
bd87284829 Clean up SnappyIntegrationTest / Fix checksum encoding 2013-02-10 00:20:49 +09:00
Trustin Lee
8bd7ea2f93 Fix SnappyFramedEncoderTest & SnappyFramedEncoder
- chunkLength is 3 bytes
2013-02-10 00:03:47 +09:00
Trustin Lee
3268781607 Fix SnappyFramedDecoderTest 2013-02-09 23:57:14 +09:00
Trustin Lee
319b7fa69a Fix SnappyFramedEncoder/Decoder / Fix Snappy preamble encoding / Add test for #1002
- The new test still fails due to a bug in Snappy.encode/decode()
2013-02-09 23:39:33 +09:00