Commit Graph

40 Commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
f67441354a Move logging classes from internal to internal.logging
.. because internal is crowded
2013-02-26 14:54:25 -08:00
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
Trustin Lee
5218f38ed0 Use InternalLogger in our code / Use jul in examples 2013-02-11 20:37:31 +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
82c46180c9 Tighten access modifier of encode/decode() 2013-02-08 17:37:16 +09:00
Trustin Lee
76eb40a4d2 Make ChannelOutboundMessageHandlerAdapter similar to ChannelInboundMessageHandlerAdapter 2013-02-08 17:07:01 +09:00
Norman Maurer
fd75615d7a [#870] Convert all modules into osgi bundles 2013-02-06 07:57:11 +01:00
Trustin Lee
4472fe9795 Remove 'get' prefix 2013-01-17 15:06:46 +09:00
Trustin Lee
eb337ff5a7 Fix various inspection warnings 2013-01-10 15:23:58 +09:00
Norman Maurer
b742dcc209 [#902] Remove usage of generics for output of Encoder/Decoder to make them more flexible again 2013-01-09 07:13:31 +01:00
alexey
738d382fbc Added test cases for NetUtil methods, if we can`t convertAddress we return null 2012-12-29 18:31:53 +01:00
Norman Maurer
0fb0037eab Rename IpAddresses to NetUtil 2012-12-29 18:25:32 +01:00
Norman Maurer
5d13c7d27b Merge IPUtil and NetworkConstants into IpAddresses and also make naming of methods consistent 2012-12-29 18:17:33 +01:00
Norman Maurer
213c1e3d23 Replace sun.net.util.IPAddressUtil usage with own implementation 2012-12-29 18:13:44 +01:00
Trustin Lee
ad10518fca Fix the incorrect snapshot version number 2012-12-13 22:49:31 +09:00
Norman Maurer
a9af028077 [#787] Move the socks package to the right place 2012-12-04 09:14:05 +01:00
Norman Maurer
85c570505b [maven-release-plugin] prepare for next development iteration 2012-12-03 20:34:05 +01:00
Norman Maurer
17d77ed160 [maven-release-plugin] prepare release netty-4.0.0.Alpha8 2012-12-03 20:33:49 +01:00
Trustin Lee
33c0c89fef Remove unnecessary empty lines 2012-12-03 19:58:13 +09:00
alexey
32f2122e64 fix socks5-auth subnegotiation version handling
Conflicts:

	codec-socks/src/main/java/io/netty/codec/socks/SocksAuthRequestDecoder.java
2012-12-03 10:47:07 +01:00
Trustin Lee
00c4b944e4 Fix more inspector warnings introduced by recent mergences 2012-12-01 00:10:42 +09:00
Trustin Lee
6208c62888 Fix inspector warnings introduced by recent mergences 2012-11-30 23:01:57 +09:00
alexey
5d2b41c094 basic support for socks5 codec 2012-11-17 20:03:16 +01:00