Commit Graph

166 Commits

Author SHA1 Message Date
Shawn Silverman
8be43903e1 Added more Javadocs to the 'replace' methods, see Netty issue 756. 2012-12-07 06:31:21 +01:00
Norman Maurer
038bcfc4ff [#792] Implement freeInboundBuffer(...) and freeOutboundBuffer(...) methods in ByteToByteCodec 2012-12-06 20:57:08 +01:00
Trustin Lee
51e6519b67 Replace UnsafeByteBuf with ByteBuf.unsafe() again
* UnsafeByteBuf is gone. I added ByteBuf.unsafe() back.
* To avoid extra instantiation, all ByteBuf implementations implement the ByteBuf.Unsafe interface.
* To hide this implementation detail, all ByteBuf implementations are package-private.
* AbstractByteBuf and SwappedByteBuf are public and they do not implement ByteBuf.Unsafe because they don't need to.
* unwrap() is not an unsafe operation anymore.
* ChannelBuf also has unsafe() and Unsafe. ByteBuf.Unsafe extends ChannelBuf.unsafe(). ChannelBuf.unsafe() provides free() operation so that a user does not need to down-cast the buffer in freeInbound/OutboundBuffer().
2012-12-05 19:28:56 +09:00
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
Trustin Lee
5f9090a7f0 Fix invalid memory access in AIO writes
To perform writes in AioSocketChannel, we get a ByteBuffer view of the
outbound buffer and specify it as a parameter when we call
AsynchronousSocketChannel.write().

In most cases, the write() operation is finished immediately.  However,
sometimes, it is scheduled for later execution.  In such a case, there's
a chance for a user's handler to append more data to the outbound
buffer.

When more data is appended to the outbound buffer, the outbound buffer
can expand its capacity by itself.  Changing the capacity of a buffer is
basically made of the following steps:

1. Allocate a larger new internal memory region.
2. Copy the current content of the buffer to the new memory region.
3. Rewire the buffer so that it refers to the new region.
4. Deallocate the old memory region.

Because the old memory region is deallocated at the step 4, the write
operation scheduled later will access the deallocated region, leading
all sort of data corruption or even segfaults.

To prevent this situation, I added suspendIntermediaryDeallocations()
and resumeIntermediaryDeallocations() to UnsafeByteBuf.

AioSocketChannel.doFlushByteBuf() now calls suspendIntermediaryDealloc()
to defer the deallocation of the old memory regions until the completion
handler is notified.
2012-12-02 21:50:33 +09:00
Trustin Lee
bfe2a96505 Fix AssertionError from AsyncSocketChannel.beginRead()
An AssertionError is triggered by a ByteBuf when beginRead() attempts to
access the buffer which has been freed already.  This commit ensures the
buffer is not freed before performing an I/O operation.

To determine if the buffer has been freed, UnsafeByteBuf.isFreed() has
been added.
2012-12-02 20:17:53 +09:00
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
Trustin Lee
089d022e03 Remove redundant exception message 2012-11-26 15:34:09 +09:00
Trustin Lee
40373526ce Remove unexpected bad text
Doh!
2012-11-26 14:41:12 +09:00
Trustin Lee
5b68f00382 Make CompatibleMarshallingDecoder discard the inbound buffer once TooLongFrameException is raised
(See #768)

Once too long object is received, CompatibleMarshallingDecoder has to
discard all input from now on, just like MarshallingDecoder does.
Otherwise, the decoder will raise more exceptions because the decoder
has no idea anymore where the object starts.

Before this fix, SerialThreadLocalCompatibleMarshallingDecoderTest
logged many additional exceptions raised by the decoder after test is
finished.
2012-11-26 14:40:18 +09:00
Norman Maurer
d7d8503f5c Add a line-based frame decoder with good performance.
Using DelimiterBasedFrameDecoder with Delimiters.lineDelimiter() has
quadratic performance in the size of the input buffer.  Needless to
say, the performance degrades pretty quickly as the size of the buffer
increases.  Larger MTUs or loopback connections can make it so bad that
it appears that the code is "busy waiting", when in fact it's spending
almost 100% of the CPU time in DelimiterBasedFrameDecoder.indexOf().

Add a new LineBasedFrameDecoder that decodes line-delimited frames
in O(n) instead of DelimiterBasedFrameDecoder's O(n^2) implementation.
In OpenTSDB's telnet-style protocol decoder this resulted in throughput
increases of an order of magnitude.

Change DelimiterBasedFrameDecoder to automatically detect when the
frames are delimited by line endings, and automatically switch to
using LineBasedFrameDecoder under the hood.  This means that all Netty
applications out there that using the combo DelimiterBasedFrameDecoder
with Delimiters.lineDelimiter() will automatically benefit from the
better performance of LineBasedFrameDecoder, without requiring a code
change.
2012-11-25 13:36:55 +01:00
Trustin Lee
81e2db10fa ByteBufAllocator API w/ ByteBuf perf improvements
This commit introduces a new API for ByteBuf allocation which fixes
issue #643 along with refactoring of ByteBuf for simplicity and better
performance. (see #62)

A user can configure the ByteBufAllocator of a Channel via
ChannelOption.ALLOCATOR or ChannelConfig.get/setAllocator().  The
default allocator is currently UnpooledByteBufAllocator.HEAP_BY_DEFAULT.

To allocate a buffer, do not use Unpooled anymore. do the following:

  ctx.alloc().buffer(...); // allocator chooses the buffer type.
  ctx.alloc().heapBuffer(...);
  ctx.alloc().directBuffer(...);

To deallocate a buffer, use the unsafe free() operation:

  ((UnsafeByteBuf) buf).free();

The following is the list of the relevant changes:

- Add ChannelInboundHandler.freeInboundBuffer() and
  ChannelOutboundHandler.freeOutboundBuffer() to let a user free the
  buffer he or she allocated. ChannelHandler adapter classes implement
  is already, so most users won't need to call free() by themselves.
  freeIn/OutboundBuffer() methods are invoked when a Channel is closed
  and deregistered.

- All ByteBuf by contract must implement UnsafeByteBuf. To access an
  unsafe operation: ((UnsafeByteBuf) buf).internalNioBuffer()

- Replace WrappedByteBuf and ByteBuf.Unsafe with UnsafeByteBuf to
  simplify overall class hierarchy and to avoid unnecesary instantiation
  of Unsafe instances on an unsafe operation.

- Remove buffer reference counting which is confusing

- Instantiate SwappedByteBuf lazily to avoid instantiation cost

- Rename ChannelFutureFactory to ChannelPropertyAccess and move common
  methods between Channel and ChannelHandlerContext there. Also made it
  package-private to hide it from a user.

- Remove unused unsafe operations such as newBuffer()

- Add DetectionUtil.canFreeDirectBuffer() so that an allocator decides
  which buffer type to use safely
2012-11-22 15:10:59 +09:00
dantran
4107b08f29 Only generate OSGi manifest only at all-in-on sub module to reduce the complexity to the build 2012-11-19 06:27:18 +01:00
dantran
105f952f5d Clean up maven-bungle-plugin warnings 2012-11-12 11:42:42 +01:00
dantran
e236f5b77d [#154] [#727] Use maven-plugin-plugin to generate OSGi manifest 2012-11-12 09:15:36 +01:00
Trustin Lee
9ac522382a Fix visibility warnings from the inspector. 2012-11-12 14:03:43 +09:00
Trustin Lee
a05064d3eb Fix more inspection warnings + compilation errors 2012-11-12 13:25:00 +09:00
Trustin Lee
6f2840193a Fix inspection warnings related with JUnit usage 2012-11-12 12:45:06 +09:00
Trustin Lee
aedf8790c3 Fix various Javadoc issues / Do not use argN parameter names 2012-11-12 12:26:19 +09:00
Trustin Lee
ea4a0e3535 Prefer {@code ...} to <code>...</code> / Fix deprecation warnings 2012-11-12 11:51:23 +09:00
Trustin Lee
aa7cd691df Remove redundant 'else' branches. 2012-11-12 09:31:40 +09:00
Trustin Lee
b4f796c5e3 Use 'x' over "x" wherever possible / String.equals("") -> isEmpty() 2012-11-10 08:03:52 +09:00
Trustin Lee
0d0eb0abfb Remove unused imports 2012-11-10 07:05:18 +09:00
Trustin Lee
a9cfde97f0 Add missing final modifiers 2012-11-10 02:19:11 +09:00
Trustin Lee
58ba0de659 Remove unnecessarily qualified static access 2012-11-10 01:32:21 +09:00
Trustin Lee
957154c005 Remove redundant no-arg constructors 2012-11-10 01:08:18 +09:00
Norman Maurer
313f777491 [maven-release-plugin] prepare for next development iteration 2012-11-05 23:08:39 +01:00
Norman Maurer
57da8222a4 [maven-release-plugin] prepare release netty-4.0.0.Alpha7 2012-11-05 23:08:28 +01:00
Norman Maurer
87cc67306f [maven-release-plugin] prepare for next development iteration 2012-10-28 18:41:25 +01:00
Norman Maurer
7315490fca [maven-release-plugin] prepare release netty-4.0.0.Alpha6 2012-10-28 18:41:17 +01:00
Norman Maurer
afc687436a Revert "[maven-release-plugin] prepare release netty-4.0.0.Alpha6"
This reverts commit 95de4db0f1.
2012-10-28 18:36:15 +01:00
Norman Maurer
16eb4ec713 Revert "[maven-release-plugin] prepare for next development iteration"
This reverts commit e3e0776c20.
2012-10-28 18:35:47 +01:00
Norman Maurer
e3e0776c20 [maven-release-plugin] prepare for next development iteration 2012-10-28 13:06:07 +01:00
Norman Maurer
95de4db0f1 [maven-release-plugin] prepare release netty-4.0.0.Alpha6 2012-10-28 13:05:59 +01:00
Norman Maurer
985fa97c9b Check if message is supported before cast. See #678 2012-10-24 07:03:02 +02:00
Norman Maurer
cbcabaf29b Add support for method chaining to ByteBuf 2012-10-18 08:57:23 +02:00
Trustin Lee
b76c39318d Make NoSuchBufferException message more useful 2012-10-16 14:23:02 -07:00
Norman Maurer
6143626427 Cleanup of sctp code based on comments in #633 2012-10-12 07:45:00 +02:00
Jestan Nirojan
6904b62c2f Resolved conflicts in SctpData/SctpMessage refactoring 2012-09-29 02:01:00 +08:00
Jestan Nirojan
64ebece730 Added SCTP Codec 2012-09-29 01:42:21 +08:00
Trustin Lee
820af50b63 [maven-release-plugin] prepare for next development iteration 2012-09-28 17:57:40 +09:00
Trustin Lee
595e1067c7 [maven-release-plugin] prepare release netty-4.0.0.Alpha5 2012-09-28 17:57:04 +09:00
Trustin Lee
94838ee274 [#441] Provide a better way to handle decoder failures
* Rename isPartial() to isPartialFailure()
* Add isCompleteFailure() and isFailure()
2012-09-28 15:46:17 +09:00
Trustin Lee
bf808b3486 Rename DecodeResult to DecoderResult 2012-09-28 15:19:08 +09:00
Trustin Lee
adebda1560 [#441] Provide a better way to handle decoder failures
* Add DecodeResult that represents the result of decoding a message
* Add HttpObject which HttpMessage and HttpChunk extend.
** HttpObject has a property 'decodeResult'
2012-09-28 13:48:17 +09:00
Trustin Lee
bd8ee64366 Pull #625 from @CruzBishop selectively 2012-09-27 19:04:35 +09:00
Trustin Lee
a156f67804 [#624] Add varargs constructor to MessageToByteEncoder, MessageToMessage(Encoder|Decoder|Codec) to implement default isEncodable/isDecodable()
.. and modify all their subtypes to take advantage of this improvement.
2012-09-23 17:01:31 +09:00