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Norman Maurer e329ca1cf3 Introduce ObjectCleaner and use it in FastThreadLocal to ensure FastThreadLocal.onRemoval(...) is called
Motivation:

There is no guarantee that FastThreadLocal.onRemoval(...) is called if the FastThreadLocal is used by "non" FastThreacLocalThreads. This can lead to all sort of problems, like for example memory leaks as direct memory is not correctly cleaned up etc.

Beside this we use ThreadDeathWatcher to check if we need to release buffers back to the pool when thread local caches are collected. In the past ThreadDeathWatcher was used which will need to "wakeup" every second to check if the registered Threads are still alive. If we can ensure FastThreadLocal.onRemoval(...) is called we do not need this anymore.

Modifications:

- Introduce ObjectCleaner and use it to ensure FastThreadLocal.onRemoval(...) is always called when a Thread is collected.
- Deprecate ThreadDeathWatcher
- Add unit tests.

Result:

Consistent way of cleanup FastThreadLocals when a Thread is collected.
2017-12-21 07:34:44 +01:00
.github Use GitHub Issue/PR Template Feature 2016-12-07 11:40:26 -08:00
all [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
bom [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
buffer Introduce ObjectCleaner and use it in FastThreadLocal to ensure FastThreadLocal.onRemoval(...) is called 2017-12-21 07:34:44 +01:00
codec Only enable validation of headers if original headers were validating as well. 2017-12-21 07:32:29 +01:00
codec-dns [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
codec-haproxy [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
codec-http Only enable validation of headers if original headers were validating as well. 2017-12-21 07:32:29 +01:00
codec-http2 Only enable validation of headers if original headers were validating as well. 2017-12-21 07:32:29 +01:00
codec-memcache [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
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codec-xml [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
common Introduce ObjectCleaner and use it in FastThreadLocal to ensure FastThreadLocal.onRemoval(...) is called 2017-12-21 07:34:44 +01:00
dev-tools [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
example [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
handler [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
handler-proxy [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
license Remove reference to akka code and ArrayDeque which is not part of netty anymore 2017-03-07 21:30:51 +01:00
microbench Fixed JMH ByteBuf benchmark to avoid dead code elimination 2017-12-19 14:09:18 +01:00
resolver [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
resolver-dns [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
tarball [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
testsuite [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
testsuite-autobahn [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
testsuite-http2 Add h2spec test suite module to check if netty http2 implementation conforms with the specification 2017-12-16 13:18:19 +01:00
testsuite-osgi [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
transport Add a hint of ownership transfer when calling EmbeddedChannel.read*() methods. 2017-12-20 07:44:25 +01:00
transport-native-epoll [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
transport-native-kqueue [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
transport-native-unix-common [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
transport-native-unix-common-tests [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
transport-rxtx [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
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transport-udt [maven-release-plugin] prepare for next development iteration 2017-12-15 13:10:54 +00:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitignore Use shaded dependency on JCTools instead of copy and paste 2016-06-10 13:19:45 +02:00
.travis.yml Travis CI branch whitelisting 2013-03-11 09:55:43 +09:00
CONTRIBUTING.md Move the pull request guide to the developer guide 2014-03-12 13:13:58 +09:00
LICENSE.txt Relicensed to Apache License v2 2009-08-28 07:15:49 +00:00
NOTICE.txt Remove reference to akka code and ArrayDeque which is not part of netty anymore 2017-03-07 21:30:51 +01:00
pom.xml Add h2spec test suite module to check if netty http2 implementation conforms with the specification 2017-12-16 13:18:19 +01:00
README.md Adding stable JDK9 module names that follow reverse-DNS style 2017-11-29 11:50:24 +01:00
run-example.sh Add UptimeServer and adjust UptimeClient's code style. 2017-04-28 07:41:07 +02:00

Netty Project

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.

How to build

For the detailed information about building and developing Netty, please visit the developer guide. This page only gives very basic information.

You require the following to build Netty:

Note that this is build-time requirement. JDK 5 (for 3.x) or 6 (for 4.0+) is enough to run your Netty-based application.

Branches to look

Development of all versions takes place in each branch whose name is identical to <majorVersion>.<minorVersion>. For example, the development of 3.9 and 4.0 resides in the branch '3.9' and the branch '4.0' respectively.

Usage with JDK 9

Netty can be used in modular JDK9 applications as a collection of automatic modules. The module names follow the reverse-DNS style, and are derived from subproject names rather than root packages due to historical reasons. They are listed below:

  • io.netty.buffer
  • io.netty.codec
  • io.netty.codec.dns
  • io.netty.codec.haproxy
  • io.netty.codec.http
  • io.netty.codec.http2
  • io.netty.codec.memcache
  • io.netty.codec.mqtt
  • io.netty.codec.redis
  • io.netty.codec.smtp
  • io.netty.codec.socks
  • io.netty.codec.stomp
  • io.netty.codec.xml
  • io.netty.common
  • io.netty.handler
  • io.netty.handler.proxy
  • io.netty.resolver
  • io.netty.resolver.dns
  • io.netty.transport
  • io.netty.transport.epoll (native omitted - reserved keyword in Java)
  • io.netty.transport.kqueue (native omitted - reserved keyword in Java)
  • io.netty.transport.unix.common (native omitted - reserved keyword in Java)
  • io.netty.transport.rxtx
  • io.netty.transport.sctp
  • io.netty.transport.udt

Automatic modules do not provide any means to declare dependencies, so you need to list each used module separately in your module-info file.