Commit Graph

5915 Commits

Author SHA1 Message Date
Trustin Lee
681d460938 Introduce TextHeaders and AsciiString
Motivation:

We have quite a bit of code duplication between HTTP/1, HTTP/2, SPDY,
and STOMP codec, because they all have a notion of 'headers', which is a
multimap of string names and values.

Modifications:

- Add TextHeaders and its default implementation
- Add AsciiString to replace HttpHeaderEntity
  - Borrowed some portion from Apache Harmony's java.lang.String.
- Reimplement HttpHeaders, SpdyHeaders, and StompHeaders using
  TextHeaders
- Add AsciiHeadersEncoder to reuse the encoding a TextHeaders
  - Used a dedicated encoder for HTTP headers for better performance
    though
- Remove shortcut methods in SpdyHeaders
- Replace SpdyHeaders.getStatus() with HttpResponseStatus.parseLine()

Result:

- Removed quite a bit of code duplication in the header implementations.
- Slightly better performance thanks to improved header validation and
  hash code calculation
2014-06-14 15:36:19 +09:00
belliottsmith
2a2a21ec59 Introduce FastThreadLocal which uses an EnumMap and a predefined fixed set of possible thread locals
Motivation:
Provide a faster ThreadLocal implementation

Modification:
Add a "FastThreadLocal" which uses an EnumMap and a predefined fixed set of possible thread locals (all of the static instances created by netty) that is around 10-20% faster than standard ThreadLocal in my benchmarks (and can be seen having an effect in the direct PooledByteBufAllocator benchmark that uses the DEFAULT ByteBufAllocator which uses this FastThreadLocal, as opposed to normal instantiations that do not, and in the new RecyclableArrayList benchmark);

Result:
Improved performance
2014-06-13 10:56:18 +02:00
Norman Maurer
3d81afb8a5 Make sure cancelled Timeouts are able to be GC'ed fast.
Motivation:
At the moment the HashedWheelTimer will only remove the cancelled Timeouts once the HashedWheelBucket is processed again. Until this the instance will not be able to be GC'ed as there are still strong referenced to it even if the user not reference it by himself/herself. This can cause to waste a lot of memory even if the Timeout was cancelled before.

Modification:
Add a new queue which holds CancelTasks that will be processed on each tick to remove cancelled Timeouts. Because all of this is done only by the WorkerThread there is no need for synchronization and only one extra object creation is needed when cancel() is executed. For addTimeout(...) no new overhead is introduced.

Result:
Less memory usage for cancelled Timeouts.
2014-06-10 12:47:37 +02:00
Norman Maurer
8180f7922f Optimize DefaultChannelPipeline in terms of memory usage and initialization time
Motivation:
Each of DefaultChannelPipeline instance creates an head and tail that wraps a handler. These are used to chain together other DefaultChannelHandlerContext that are created once a new ChannelHandler is added. There are a few things here that can be improved in terms of memory usage and initialization time.

Modification:
- Only generate the name for the tail and head one time as it will never change anyway
- Rename DefaultChannelHandlerContext to AbstractChannelHandlerContext and make it abstract
- Create a new DefaultChannelHandlerContext that is used when a ChannelHandler is added to the DefaultChannelPipeline
- Rename TailHandler to TailContext and HeadHandler to HeadContext and let them extend AbstractChannelHandlerContext. This way we can save 2 object creations per DefaultChannelPipeline

 Result:
- Less memory usage because we have 2 less objects per DefaultChannelPipeline
- Faster creation of DefaultChannelPipeline as we not need to generate the name for the head and tail
2014-06-10 12:18:38 +02:00
Norman Maurer
e3c76ec106 DNS codec for Netty which is based on the work of [#1622].
Motivation:
As part of GSOC 2013 we had @mbakkar working on a DNS codec but did not integrate it yet as it needs some cleanup. This commit is based on @mbakkar's work and provide the codec for DNS.

Modifications:
Add DNS codec

Result:
Reusable DNS codec will be included in netty.

This PR also includes a AsynchronousDnsResolver which allows to resolve DNS entries in a non blocking way by make use
of the dns codec and netty transport itself.
2014-06-10 09:57:06 +02:00
Frederic Bregier
8074b5c6ee [#2542] HTTP post request decoder does not support quoted boundaries
Motivation:
According to RFC2616 section 19, boundary string could be quoted, but
currently the PostRequestDecoder does not support it while it should.

Modifications:
Once the boundary is found, one check is made to verify if the boundary
is "quoted", and if so, it is "unqoted".

Note: in following usage of this boundary (as delimiter), quote seems no
more allowed according to the same RFC, so the reason that only the
boundary definition is corrected.

Result:
Now the boundary could be whatever quoted or not. A Junit test case
checks it.
2014-06-08 12:08:03 +02:00
Frederic Bregier
f402350d76 [#2544] Correctly parse Multipart-mixed POST HTTP request in case of entity ends with odd number of 0x0D
Motivation:
When an attribute is ending with an odd number of CR (0x0D), the decoder
add an extra CR in the decoded attribute and should not.

Modifications:
Each time a CR is detected, the next byte was tested to be LF or not. If
not, in a number of places, the CR byte was lost while it should not be.
When a CR is detected, if the next byte is not LF, the CR byte should be
saved as the position point to the next byte (not LF). When a CR is
detected, if there is not yet other available bytes, the position is
reset to the position of CR (since a LF could follow).

A new Junit test case is added, using DECODER and variable number of CR
in the final attribute (testMultipartCodecWithCRasEndOfAttribute).

Result:
The attribute is now correctly decoded with the right number of CR
ending bytes.
2014-06-08 11:24:18 +02:00
Norman Maurer
61dbc353ca [#2436] Unsafe*ByteBuf implementation should only invert bytes if ByteOrder differ from native ByteOrder
Motivation:
Our Unsafe*ByteBuf implementation always invert bytes when the native ByteOrder is LITTLE_ENDIAN (this is true on intel), even when the user calls order(ByteOrder.LITTLE_ENDIAN). This is not optimal for performance reasons as the user should be able to set the ByteOrder to LITTLE_ENDIAN and so write bytes without the extra inverting.

Modification:
- Introduce a new special SwappedByteBuf (called UnsafeDirectSwappedByteBuf) that is used by all the Unsafe*ByteBuf implementation and allows to write without inverting the bytes.
- Add benchmark
- Upgrade jmh to 0.8

Result:
The user is be able to get the max performance even on servers that have ByteOrder.LITTLE_ENDIAN as their native ByteOrder.
2014-06-05 10:59:22 +02:00
Trustin Lee
a852ee4154 Fix StompSubframeEncoderTest failure
Motivation:

StompSubframeEncoderTest fails because StompHeaders does not respect the order of the headers set.

Modifications:

Use LinkedHashMap instead of HashMap

Result:

Fixes test failures
2014-06-05 17:04:58 +09:00
Trustin Lee
8b0a0f9a8f Introduce MessageAggregator and DecoderResultProvider
Motivation:

We have different message aggregator implementations for different
protocols, but they are very similar with each other.  They all stems
from HttpObjectAggregator.  If we provide an abstract class that provide
generic message aggregation functionality, we will remove their code
duplication.

Modifications:

- Add MessageAggregator which provides generic message aggregation
- Reimplement all existing aggregators using MessageAggregator
- Add DecoderResultProvider interface and extend it wherever possible so
  that MessageAggregator respects the state of the decoded message

Result:

Less code duplication
2014-06-05 16:51:14 +09:00
Trustin Lee
a8143eda27 Overall refactoring of the STOMP codec
- StompObject -> StompSubframe
- StompFrame -> StompHeadersSubframe
- StompContent -> StompContntSubframe
- FullStompFrame -> StompFrame
- StompEncoder/Decoder -> StompSubframeEncoder/Decoder
- StompAggregator -> StompSubframeAggregator
- Simplify the example
- Update Javadoc
- Miscellaneous cleanup
2014-06-04 17:09:42 +09:00
Sergey Skachkov
b286079205 Initial STOMP protocol work from @sskachkov 2014-06-04 17:09:42 +09:00
Trustin Lee
d1b90774bc Clean up MpscLinkedQueue, fix its leak, and make it work without Unsafe
Motivation:

MpscLinkedQueue has various issues:
- It does not work without sun.misc.Unsafe.
- Some field names are confusing.
  - Node.tail does not refer to the tail node really.
  - The tail node is the starting point of iteration. I think the tail
    node should be the head node and vice versa to reduce confusion.
- Some important methods are not implemented (e.g. iterator())
- Not serializable
- Potential false cache sharing problem due to lack of padding
- MpscLinkedQueue extends AtomicReference and thus exposes various
  operations that mutates the internal state of the queue directly.

Modifications:

- Use AtomicReferenceFieldUpdater wherever possible so that we do not
  use Unsafe directly. (e.g. use lazySet() instead of putOrderedObject)
- Extend AbstractQueue to implement most operations
- Implement serialization and iterator()
- Rename tail to head and head to tail to reduce confusion.
- Rename Node.tail to Node.next.
- Fix a leak where the references in the removed head are not cleared
  properly.
- Add Node.clearMaybe() method so that the value of the new head node
  is cleared if possible.
- Add some comments for my own educational purposes
- Add padding to the head node
  - Add FullyPaddedReference and RightPaddedReference for future reuse
- Make MpscLinkedQueue package-local so that a user cannot access the
  dangerous yet public operations exposed by the superclass.
  - MpscLinkedQueue.Node becomes MpscLinkedQueueNode, a top level class

Result:

- It's more like a drop-in replacement of ConcurrentLinkedQueue for the
  MPSC case.
- Works without sun.misc.Unsafe
- Code potentially easier to understand
- Fixed leak (related: #2372)
2014-06-04 03:23:55 +09:00
Trustin Lee
502d29a721 Require Maven 3.1.1 or above
.. because the build fails with an older Maven version due to Eclipse
Aether issues
2014-06-04 03:15:26 +09:00
Norman Maurer
a79b69adf5 ChannelFlushPromiseNotifier should allow long value for pendingDataSize
Motivation:
At the moment ChannelFlushPromiseNotifier.add(....) takes an int value for pendingDataSize, which may be too small as a user may need to use a long. This can for example be useful when a user writes a FileRegion etc. Beside this the notify* method names are kind of missleading as these should not contain *Future* because it is about ChannelPromises.

Modification:
Add a new add(...) method that takes a long for pendingDataSize and @deprecated the old method. Beside this also @deprecated all *Future* methods and add methods that have *Promise* in the method name to better reflect usage.

Result:
ChannelFlushPromiseNotifier can be used with bigger data.
2014-06-03 17:34:53 +02:00
Daniel Bevenius
c1d6ba0598 OkResponseHandler should return a FullHttpResponse.
Motivation:
Currently OkResponseHandler returns a DefaultHttpResponse which is not
correct and it should be returning complete http response.

Modifications:
Updated OkResponseHandler to return an instance of
DefaultFullHttpResponse.

Result:
It is not possible to add compression to the example without getting any
errors.
2014-06-03 09:44:32 +02:00
DhanaRaj Durairaj
eb27cd279c [#2494] Fix data curruption by ChannelTrafficShapingHandler
Motivation:
ChannelTrafficShapingHandler may corrupt inbound data stream by
scheduling the fireChannelRead event.

Modification:
Always call fireChannelRead(...) and only suspend reads after it

Result:
No more data corruption
2014-06-03 08:38:05 +02:00
Trustin Lee
13c0cfde59 Add awaitInactivity() to GlobalEventExecutor and ThreadDeathWatcher
Motivation:

When running Netty on a container environment, the container will often
complain about the lingering threads such as the worker threads of
ThreadDeathWatcher and GlobalEventExecutor.  We should provide an
operation that allows a use to wait until such threads are terminated.

Modifications:

- Add awaitInactivity()
- (misc) Fix typo in GlobalEventExecutorTest
- (misc) Port ThreadDeathWatch's CAS-based thread life cycle management
  to GlobalEventExecutor

Result:

- Fixes #2084
- Less overhead on task submission of GlobalEventExecutor
2014-06-02 19:28:00 +09:00
Trustin Lee
08c1f55d3a Fix checkstyle 2014-06-02 18:27:11 +09:00
Trustin Lee
7d9374a582 Use Java 5 foreach for arrays for brevity at no cost 2014-06-02 18:25:25 +09:00
Trustin Lee
af4c30fa56 Remove the deprecated constructor 2014-06-02 18:24:19 +09:00
Trustin Lee
e79ca269b8 Introduce ThreadDeathWatcher
Motivation:

PooledByteBufAllocator's thread local cache and
ReferenceCountUtil.releaseLater() are in need of a way to run an
arbitrary logic when a certain thread is terminated.

Modifications:

- Add ThreadDeathWatcher, which spawns a low-priority daemon thread
  that watches a list of threads periodically (every second) and
  invokes the specified tasks when the associated threads are not alive
  anymore
  - Start-stop logic based on CAS operation proposed by @tea-dragon
- Add debug-level log messages to see if ThreadDeathWatcher works

Result:

- Fixes #2519 because we don't use GlobalEventExecutor anymore
- Cleaner code
2014-06-02 18:23:23 +09:00
Norman Maurer
b0ddfb9b65 [#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 19:26:20 +02:00
Korotaev Boris
5b2a01a196 Fix broken CompositeMatcher
Motivation:

ChannelMatchers#CompositeMatcher inverts matches result.

Modifications:

Switched return values.

Result:

ChannelMatchers#CompositeMatcher will return correct results.
2014-06-01 13:13:49 +02:00
Norman Maurer
d0f3bfd4cc [#2523] Fix infinite-loop when remove attribute and create the same attribute again
Motivation:
The current DefaultAttributeMap cause an infinite-loop when the user removes an attribute and create the same attribute again. This regression was introduced by c3bd7a8ff1.

Modification:
Correctly break out loop

Result:
No infinite-loop anymore.
2014-06-01 13:10:52 +02:00
Josh Hoyt
8583dd03fc codec-http: Document the semantics of HttpResponseStatus equality and comparison 2014-05-30 07:52:20 +02:00
Frédéric Brégier
c255f38647 Correction on StringBuilder default init size
Motivation:
The default StringBuilder size is too small (data.length + 4) while it will be 2*data.length (byte to Hex) + 5 "-" char (since 5 peaces appended).

Modification:
Changing initial size to the correct one

Result:
Allocation of the correct final size from the beginning for this StringBuilder.
2014-05-30 07:35:49 +02:00
Trustin Lee
ea3dac0753 Do not use a pseudo random for tree traversal
Motivation:

If we make allocateRun/SubpageSimple() always try the left node first and make allocateRun/Subpage() always tries the right node first,  it is more likely that allocateRun/Subpage() will find a node with ST_UNUSED sooner.

Modifications:

- Make allocateRunSimple() and allocateSubpageSimple() always try the left node first.
- Make allocateRun() and allocateSubpage() always try the right node first.
- Remove randome

Result:

We get the same performance without using random numbers.
2014-05-30 11:24:16 +09:00
Trustin Lee
e5ed69241b Optimize PooledByteBufAllocator
Motivation:

We still have a room for improvement in PoolChunk.allocateRun() and
Subpage.allocate().

Modifications:

- Unroll the recursion in PoolChunk.allocateRun()
- Subpage.allocate() makes use of the 'nextAvail' value set by previous
  free().

Result:

- PoolChunk.allocateRun() optimization yields 10%+ improvements in
  allocation throughput for non-subpage allocations.
- Subpage.allocate() optimization makes the subpage allocations for
  tiny buffers as fast as non-tiny buffers even when the pageSize is
  huge (e.g. 1048576) because it doesn't need to perform a linear search
  in most cases.
2014-05-30 10:51:21 +09:00
Trustin Lee
0cc264b76b More realistic ByteBuf allocation benchmark
Motivation:

Allocating a single buffer and releasing it repetitively for a benchmark will not involve the realistic execution path of the allocators.

Modifications:

Keep the last 8192 allocations and release them randomly.

Result:

We are now getting the result close to what we got with caliper.
2014-05-29 19:51:05 +09:00
Trustin Lee
b4e6931294 Upgrade to netty-tcnative 1.1.30.Fork2 to support Windows 2014-05-28 10:56:15 +09:00
Trustin Lee
8df9dd7dda Work around the system configuration issue that causes NioSocketChannelTest to fail
Motivation:

On some ill-configured systems, InetAddress.getLocalHost() fails.  NioSocketChannelTest calls java.net.Socket.connect() and it internally invoked InetAddress.getLocalHost(), which causes the test failures in NioSocketChannelTes on such an ill-configured system.

Modifications:

Use NetUtil.LOCALHOST explicitly.

Result:

NioSocketChannelTest should not fail anymore.
2014-05-28 09:40:49 +09:00
Trustin Lee
c5112ed552 Upgrade os-maven-plugin to fix an issue with IntelliJ IDEA on Windows 2014-05-27 04:42:16 +09:00
Trustin Lee
9961cae7cf Use a forked exec-maven-plugin instead of maven-antrun-plugin
Motivation:

maven-antrun-plugin does not redirect stdin, and thus it's impossible to
run interactive examples such as securechat-client and telnet-client.
org.codehaus.mojo:exec-maven-plugin redirects stdin, but it buffers
stdout and stderr, and thus an application output is not flushed timely.

Modifications:

Deploy a forked version of exec-maven-plugin which flushes output
buffers in a timely manner.

Result:

Interactive examples work.  Launches faster than maven-antrun-plugin.
2014-05-23 20:06:04 +09:00
Trustin Lee
223efc5f99 Clean up the examples
Motivation:

The examples have not been updated since long time ago, showing various
issues fixed in this commit.

Modifications:

- Overall simplification to reduce LoC
  - Use system properties to get options instead of parsing args.
  - Minimize option validation
  - Just use System.out/err instead of Logger
  - Do not pass config as parameters - just access it directly
  - Move the main logic to main(String[]) instead of creating a new
    instance meaninglessly
    - Update netty-build-21 to make checkstyle not complain
  - Remove 'throws Exception' clause if possible
- Line wrap at 120 (previously at 80)
- Add an option to enable SSL for most examples
- Use ChannelFuture.sync() instead of await()
- Use System.out for the actual result. Use System.err otherwise.
- Delete examples that are not very useful:
  - applet
  - websocket/html5
  - websocketx/sslserver
  - localecho/multithreaded
- Add run-example.sh which simplifies launching an example from command
  line
- Rewrite FileServer example

Result:

Shorter and simpler examples.  A user can focus more on what it actually
does than miscellaneous stuff.  A user can launch an example very
easily.
2014-05-23 17:13:09 +09:00
Trustin Lee
c7825f63c0 Fix a bug in DefaultPromise.notifyLateListener() where the listener is not notified
Motivation:

When (listeners == null && lateListeners == null) and (stackDepth >= MAX_LISTENER_STACK_DEPTH), the listener is not notified at all. The discard client does not work.

Modification:

Make sure to submit the notification task.

Result:

The discard client works again and all listeners are notified.
2014-05-23 09:48:05 +09:00
Trustin Lee
60a83fc6ac Fix packagine issues in all-in-one JAR
Motivation:

- dependencyVersionsDir property is not resolved during the build
  process. The build doesn't fail because of this, but it creates an
  ugly directory.
- All-in-one JAR contains libnetty-tcnative.so, which is not part of the
  all-in-one JAR.

Modifications:

- Fix an incorrect property name
  (dependencyVersionDir -> dependencyVersionsDir)
- Exclude libnetty-tcnative.so
- Remove unnecessary includes in source expanding configuration

Result:

- Cleaner pom.xml
- We do not ship libnetty-tcnative.so in all-in-one JAR anymore, which
  is correct, because strictly speaking the native library belongs to
  org.apache.tomcat.jni package.
2014-05-22 19:14:44 +09:00
Trustin Lee
37931306d5 Use maven-antrun-plugin instead of exec-maven-plugin
Motivation:

exec-maven-plugin does not flush stdout and stderr, making the console
output from the examples invisible to users

Modification:

Use maven-antrun-plugin instead

Result:

A user sees the output from the examples immediately.
2014-05-22 18:54:21 +09:00
Trustin Lee
cdab518562 Fix an incorrect path problem in run-example.sh 2014-05-22 17:57:12 +09:00
Trustin Lee
d7f553562e Display example names in 2 columns
- ported from ba28679775
2014-05-22 17:56:09 +09:00
Trustin Lee
2f8c13e85a Fix NPE 2014-05-22 10:29:24 +09:00
Trustin Lee
5ce410c69e Future compatibility with TLS ALPN
Motivation:

According to TLS ALPN draft-05, a client sends the list of the supported
protocols and a server responds with the selected protocol, which is
different from NPN.  Therefore, ApplicationProtocolSelector won't work
with ALPN

Modifications:

- Use Iterable<String> to list the supported protocols on the client
  side, rather than using ApplicationProtocolSelector
- Remove ApplicationProtocolSelector

Result:

Future compatibility with TLS ALPN
2014-05-22 10:03:02 +09:00
Trustin Lee
27b67e981e Fix NPE in OpenSslEngine 2014-05-21 20:02:40 +09:00
Trustin Lee
ac968fbf7b Escape a colon in protocol names 2014-05-21 17:45:18 +09:00
Trustin Lee
d318f526a2 Update the instruction for running SPDY examples 2014-05-21 17:30:07 +09:00
Trustin Lee
861ed1e7ad Add unified NextProtoNego extension support to SslContext
Motivation:

- OpenSslEngine and JDK SSLEngine (+ Jetty NPN) have different APIs to
  support NextProtoNego extension.
  - It is impossible to configure NPN with SslContext when the provider
    type is JDK.

Modification:

- Implement NextProtoNego extension by overriding the behavior of
  SSLSession.getProtocol() for both OpenSSLEngine and JDK SSLEngine.
  - SSLEngine.getProtocol() returns a string delimited by a colon (':')
    where the first component is the transport protosol (e.g. TLSv1.2)
    and the second component is the name of the application protocol
- Remove the direct reference of Jetty NPN classes from the examples
- Add SslContext.newApplicationProtocolSelector

Result:

- A user can now use both JDK SSLEngine and OpenSslEngine for NPN-based
  protocols such as HTTP2 and SPDY
2014-05-21 17:24:52 +09:00
Trustin Lee
d4f2488eac Bash 3 compatibility
Motivation:

Mac OS X ships Bash 3, and it does not have an associative array
(declare -A).

Modifications:

Do not use an associative array.

Result:

Can run examples on Mac OS X using run-example.sh
2014-05-21 13:37:15 +09:00
Trustin Lee
e61ad7f80b Improve run-example.sh
- More usage example
- Newlines for prettier output
2014-05-20 23:39:32 +09:00
Trustin Lee
4436870b28 Clean up the execution mechanism of examples
Motivation:

- There's no way to pass an argument to an example.
- Assigning a Maven profile for each example is an overkill.
  It makes the pom.xml crowded.

Modifications:

- Remove example profiles from example/pom.xml
- Keep the list of examples in run-example.sh
- run-example.sh passes all options to exec-maven-plugin.
  For example, we can now do this:

    ./run-example.sh -Dssl -Dport=443 http-server

Result:

- It's much easier to add a new example and provide an easy way to
  launch it.
- We can still pass an arbitrary argument to the example being launched.
  (I'll update all examples to make them get their options from system
  properties rather than from args[].
2014-05-20 23:33:45 +09:00
Trustin Lee
5354ccaa8f Fix a build problem with JDK 8
Motivation:

Build fails with JDK 8 because npn-boot does not work with JDK 8

Modifications:

Do not specify bootclasspath when on JDK 8

Result:

Build is green again.
2014-05-20 22:40:11 +09:00