Commit Graph

469 Commits

Author SHA1 Message Date
Trustin Lee
fb538ea532 Refactor FastThreadLocal to simplify TLV management
Motivation:

When Netty runs in a managed environment such as web application server,
Netty needs to provide an explicit way to remove the thread-local
variables it created to prevent class loader leaks.

FastThreadLocal uses different execution paths for storing a
thread-local variable depending on the type of the current thread.
It increases the complexity of thread-local removal.

Modifications:

- Moved FastThreadLocal and FastThreadLocalThread out of the internal
  package so that a user can use it.
- FastThreadLocal now keeps track of all thread local variables it has
  initialized, and calling FastThreadLocal.removeAll() will remove all
  thread-local variables of the caller thread.
- Added FastThreadLocal.size() for diagnostics and tests
- Introduce InternalThreadLocalMap which is a mixture of hard-wired
  thread local variable fields and extensible indexed variables
- FastThreadLocal now uses InternalThreadLocalMap to implement a
  thread-local variable.
- Added ThreadDeathWatcher.unwatch() so that PooledByteBufAllocator
  tells it to stop watching when its thread-local cache has been freed
  by FastThreadLocal.removeAll().
- Added FastThreadLocalTest to ensure that removeAll() works
- Added microbenchmark for FastThreadLocal and JDK ThreadLocal
- Upgraded to JMH 0.9

Result:

- A user can remove all thread-local variables Netty created, as long as
  he or she did not exit from the current thread. (Note that there's no
  way to remove a thread-local variable from outside of the thread.)
- FastThreadLocal exposes more useful operations such as isSet() because
  we always implement a thread local variable via InternalThreadLocalMap
  instead of falling back to JDK ThreadLocal.
- FastThreadLocalBenchmark shows that this change improves the
  performance of FastThreadLocal even more.
2014-06-19 21:08:16 +09:00
Norman Maurer
a4bd566cef [#2572] Correctly calculate length of output buffer before inflate to fix IndexOutOfBoundException
Motivation:

JdkZlibDecoder fails to decode because the length of the output buffer is not calculated correctly.
This can cause an IndexOutOfBoundsException or data-corruption when the PooledByteBuffAllocator is used.

Modifications:

Correctly calculate the length

Result:

No more IndexOutOfBoundsException or data-corruption.
2014-06-16 10:22:02 +02:00
Norman Maurer
b737d631f1 [maven-release-plugin] prepare for next development iteration 2014-06-12 16:20:52 +02:00
Norman Maurer
1709113a1f [maven-release-plugin] prepare release netty-4.0.20.Final 2014-06-12 16:14:48 +02:00
Norman Maurer
76043bc8c8 Make use of an array to store FastThreadLocals and so allow to also use it in PooledByteBufAllocator that is instanced by users.
Motivation:
Allow to make use of our new FastThreadLocal whereever possible

Modification:
Make use of an array to store FastThreadLocals and so allow to also use it in PooledByteBufAllocator that is instanced by users.
The maximal size of the array is configurable per system property to allow to tune it if needed. As default we use 64 entries which should be good enough.

Result:
More flexible usage of FastThreadLocal
2014-06-12 15:43:20 +02:00
Norman Maurer
0ea796ad55 [#2525] Use VoidChannelPromise in MessageToMessageEncoder when possible
Motivation:
At the moment MessageToMessageEncoder uses ctx.write(msg) when have more then one message was produced. This may produce more GC pressure then necessary as when the original ChannelPromise is a VoidChannelPromise we can safely also use one when write messages.

Modifications:
Use VoidChannelPromise when the original ChannelPromise was of this type

Result:
Less object creation and GC pressure
2014-06-01 19:26:09 +02:00
Norman Maurer
e26bbfd4a7 Use ByteBuf.readSlice(...).retain() to minimize memory copies.
Motivation:
At the moment we call ByteBuf.readBytes(...) in these handlers but with optimizations done as part of 25e0d9d we can just use readSlice(...).retain() and eliminate the memory copy.

Modifications:
Replace ByteBuf.readBytes(...) usage with readSlice(...).retain().

Result:
Less memory copies.
2014-05-10 16:05:50 +02:00
Norman Maurer
a597087a9f [maven-release-plugin] prepare for next development iteration 2014-04-30 15:40:54 +02:00
Norman Maurer
b562148e2d [maven-release-plugin] prepare release netty-4.0.19.Final 2014-04-30 15:40:31 +02:00
Martin Krüger
643f3d687b Fix chunk type for stream identifier
Motivation:
The problem with the current snappy implementation is that it does
not comply with framing format definition found on
https://code.google.com/p/snappy/source/browse/trunk/framing_format.txt

The document describes that chunk type of the stream identifier is defined
as 0xff. The current implentation uses 0x80.

Modifications:
This patch replaces the first byte of the chunk type of the stream identifier
with 0xff.

Result:
After this modification the snappy implementation is compliant to the
framing format described at
https://code.google.com/p/snappy/source/browse/trunk/framing_format.txt.
This results in a better compatibility with other implementations.
2014-04-19 21:02:34 +02:00
Norman Maurer
012166803a [#2353] Use a privileged block to get ClassLoader and System property if needed
Motivation:
When using System.getProperty(...) and various methods to get a ClassLoader it will fail when a SecurityManager is in place.

Modifications:
Use a priveled block if needed. This work is based in the PR #2353 done by @anilsaldhana .

Result:
Code works also when SecurityManager is present
2014-04-08 13:59:03 +02:00
Norman Maurer
6f2401ac40 Allow the user to call slice().retain() or duplicate.retain() in his/her ByteToMessageDecoder.decode(...) method.
Motivation:
At the moment a user can not safetly call slice().retain() or duplicate.retain()in the ByteToMessageDecoder.decode(...) implementation without the risk to see coruption because we may call discardSomeReadBytes() to make room on the buffer once the handling is done.

Modifications:
Check for the refCnt() before call discardSomeReadBytes() and also check before call decode(...) to create a copy if needed.

Result:
The user can safetly call slice().retain() or duplicate.retain() in his/her ByteToMessageDecoder.decode(...) method.
2014-04-07 11:33:52 +02:00
Norman Maurer
816165c96a [maven-release-plugin] prepare for next development iteration 2014-04-01 07:21:40 +02:00
Norman Maurer
1512a4dcca [maven-release-plugin] prepare release netty-4.0.18.Final 2014-04-01 07:20:16 +02:00
Alexey Diomin
ab2119feac [#2339] Reduce memory usage in ProtobufVarint32LengthFieldPrepender
Motivation:

Reduce memory usage in ProtobufVarint32LengthFieldPrepender.

Modifications:

Explicit set the buffer size that is needed for the header (between 1 and 5 bytes).

Result:

Less memory usage in ProtobufVarint32LengthFieldPrepender.
2014-03-28 19:46:54 +01:00
Norman Maurer
ef76907422 Remove condition in ChannelHandlerAdapter.isSharable() by caching the result of the annotation lookup.
Motivation:
Remove the synchronization bottleneck and so speed up things

Modifications:
Introduce a ThreadLocal cache that holds mappings between classes of ChannelHandlerAdapater implementations and the result of checking if the @Sharable annotation is present.
This way we only will need to do the real check one time and server the other calls via the cache. A ThreadLocal and WeakHashMap combo is used to implement the cache
as this way we can minimize the conditions while still be sure we not leak class instances in containers.

Result:
Less conditions during adding ChannelHandlerAdapter to the ChannelPipeline
2014-03-12 12:31:22 +01:00
Norman Maurer
ae818b3be6 Fix buffer leak in test which was introduced while implement ZLIB_OR_NONE support. Related to [#2269] 2014-03-10 06:24:53 +01:00
Norman Maurer
835c446f5f Fix buffer leak in test which was introduced while implement ZLIB_OR_NONE support. Related to [#2269] 2014-03-06 20:03:40 +01:00
Jakob Buchgraber
2062e774eb Add ZLIB_OR_NONE support to JdkZlibDecoder [#2016] 2014-03-03 06:31:06 +01:00
Norman Maurer
ccd135df01 [maven-release-plugin] prepare for next development iteration 2014-02-24 15:39:26 +01:00
Norman Maurer
33587eb183 [maven-release-plugin] prepare release netty-4.0.17.Final 2014-02-24 15:37:31 +01:00
Norman Maurer
66e2bb1e75 [maven-release-plugin] prepare for next development iteration 2014-02-19 03:41:24 +01:00
Norman Maurer
c466bb803d [maven-release-plugin] prepare release netty-4.0.16.Final 2014-02-19 03:36:54 +01:00
Trustin Lee
7f41faeb86 Optimize imports 2014-02-16 11:53:51 -08:00
Trustin Lee
c4936fe9a7 Fix resource leaks in ByteArrayEncoderTest 2014-02-16 11:52:43 -08:00
Vladimir Schafer
3d531231fe #2183 Fix for releasing of the internal cumulation buffer in ByteToMessageDecoder 2014-02-06 20:07:56 +01:00
Norman Maurer
85a997d5ec Correctly calculate checksum when using GZIP. Part of [#2168] 2014-02-06 10:47:59 +01:00
Norman Maurer
0f7379157a [#2168] Eliminate unnessary memory copy for heap buffers in JdkZlibEncoder
* Also adjust tests so it test with direct and heap buffers
2014-01-30 07:02:14 +01:00
Norman Maurer
d67184b488 [maven-release-plugin] prepare for next development iteration 2014-01-21 08:18:32 +01:00
Norman Maurer
287515210d [maven-release-plugin] prepare release netty-4.0.15.Final 2014-01-21 08:18:26 +01:00
Norman Maurer
faf8becf2e Make use of ByteBufProcessor for extract initial line and headers
This gives some nice performance boost as readByte() is quite expensive because of the index / replay checks.
2014-01-16 20:14:08 +01:00
Trustin Lee
e83d2e0b4e [maven-release-plugin] prepare for next development iteration 2013-12-22 21:57:48 +09:00
Trustin Lee
cdb700c7a4 [maven-release-plugin] prepare release netty-4.0.14.Final 2013-12-22 21:57:40 +09:00
Trustin Lee
0b7aedb13b [maven-release-plugin] rollback the release of netty-4.0.14.Final 2013-12-22 21:53:24 +09:00
Trustin Lee
4bf6ec7171 [maven-release-plugin] prepare release netty-4.0.14.Final 2013-12-22 21:52:56 +09:00
Trustin Lee
9c1a49c58e [maven-release-plugin] rollback the release of netty-4.0.14.Final 2013-12-22 21:47:35 +09:00
Trustin Lee
008a049bf4 [maven-release-plugin] prepare for next development iteration 2013-12-22 21:43:55 +09:00
Trustin Lee
f6cb9088c6 [maven-release-plugin] prepare release netty-4.0.14.Final 2013-12-22 21:43:45 +09:00
Norman Maurer
b3d8c81557 Fix all leaks reported during tests
- One notable leak is from WebSocketFrameAggregator
- All other leaks are from tests
2013-12-07 00:44:56 +09:00
Norman Maurer
17f5865e38 [maven-release-plugin] prepare for next development iteration 2013-11-29 19:31:01 +01:00
Norman Maurer
ead617fdcc [maven-release-plugin] prepare release netty-4.0.14.Beta1 2013-11-29 19:30:55 +01:00
Trustin Lee
3f7b674db8 Fix bugs in ZLIB codec where they produce malformed stream or their streams are not flushed on time
- Fixes #2014
- Add the tests that mix JDK ZLIB codec and JZlib codecs
- Fix a bug where JdkZlibEncoder does not encode the GZIP header when nothing was written to te channel
- Fix a bug where the encoders do not consider the overhead of the wrapper format when calculating the estimated compressed output size.
- Fix a bug where the decoders do not discard the received data after the compressed stream is finished
2013-11-29 18:09:04 +09:00
Norman Maurer
6cf2748dbb [maven-release-plugin] prepare for next development iteration 2013-11-28 15:04:51 +01:00
Norman Maurer
5fe7596f49 [maven-release-plugin] prepare release netty-4.0.13.Final 2013-11-28 15:04:46 +01:00
Trustin Lee
407f0a36f5 Simplify bundle generation / Add io.netty.versions.properties to all JARs
- Fixes #2003 properly
- Instead of using 'bundle' packaging, use 'jar' packaging.  This is
  more robust because some strict build tools fail to retrieve the
  artifacts from a Maven repository unless their packaging is not 'jar'.
- All artifacts now contain META-INF/io.netty.version.properties, which
  provides the detailed information about the build and repository.
- Removed OSGi testsuite temporarily because it gives false errors
  during split package test and examination.
- Add io.netty.util.Version for easy retrieval of version information
2013-11-26 22:01:46 +09:00
Norman Maurer
db78581bbb [maven-release-plugin] prepare for next development iteration 2013-11-07 18:11:45 +01:00
Norman Maurer
2386777af8 [maven-release-plugin] prepare release netty-4.0.12.Final 2013-11-07 18:11:38 +01:00
Trustin Lee
54db9ec725 Use StringUtil.simpleClassName(..) instead of Class.getSimpleName() where necessary
- Class.getSimpleName() doesn't render anonymous classes very well
- + some minor cleanup
2013-11-04 19:46:15 +09:00
Trustin Lee
4f5c52572b Allow a user to define his/her own length field decoder
- Fixes #1960
2013-11-02 14:29:51 +01:00
Luke Wood
31c1513229 [#1958] Use CRC32-C in Snappy as per the spec 2013-11-01 20:54:55 +01:00