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Nick Hill a18c57ea87 Externalize lazy execution semantic for EventExecutors (#9587)
Motivation

This is already done internally for various reasons but it would make
sense i.m.o. as a top level concept: submitting a task to be run on the
event loop which doesn't need to run immediately but must still be
executed in FIFO order relative all other submitted tasks (be those
"lazy" or otherwise).

It's nice to separate this abstract "relaxed" semantic from concrete
implementations - the simplest is to just delegate to existing execute,
but for the main EL impls translates to whether a wakeup is required
after enqueuing.

Having a "global" abstraction also allows for simplification of our
internal use - for example encapsulating more of the common scheduled
future logic within AbstractScheduledEventExecutor.

Modifications

- Introduce public LazyRunnable interface and
AbstractEventExecutor#lazyExecute method (would be nice for this to be
added to EventExecutor interface in netty 5)
- Tweak existing SingleThreadEventExecutor mechanics to support these
- Replace internal use of NonWakeupRunnable (such as for pre-flush
channel writes)
- Uplift scheduling-related hooks into AbstractScheduledEventExecutor,
eliminating intermediate executeScheduledRunnable method

Result

Simpler code, cleaner and more useful/flexible abstractions - cleaner in
that they fully communicate the intent in a more general way, without
implying/exposing/restricting implementation details
2019-10-31 10:01:53 +01:00
.github Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:09:42 +02:00
.mvn support publishing snapshots from docker based ci (#8634) 2018-12-07 05:43:06 +01:00
all Introduce MacOSDnsServerAddressStreamProvider which correctly detect all nameserver configuration on MacOS (#9161) 2019-10-28 15:02:45 +01:00
bom [maven-release-plugin] prepare for next development iteration 2019-10-24 12:57:00 +00:00
buffer Hide Recycler implemention to allow experimenting with different implementions of an Object pool (#9715) 2019-10-26 00:34:30 -07:00
codec Remove todo in StringEncoder (#9719) 2019-10-29 19:47:28 +01:00
codec-dns [maven-release-plugin] prepare for next development iteration 2019-10-24 12:57:00 +00:00
codec-haproxy [maven-release-plugin] prepare for next development iteration 2019-10-24 12:57:00 +00:00
codec-http Simplify WebSocket handlers constructor arguments hell #9698 (#9699) 2019-10-29 20:48:18 +01:00
codec-http2 Fix Http2Headers.method(...) javadocs (#9718) 2019-10-29 19:51:28 +01:00
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common Externalize lazy execution semantic for EventExecutors (#9587) 2019-10-31 10:01:53 +01:00
dev-tools [maven-release-plugin] prepare for next development iteration 2019-10-24 12:57:00 +00:00
docker Update to latest jdk8 release (#9717) 2019-10-28 10:30:55 +01:00
example [maven-release-plugin] prepare for next development iteration 2019-10-24 12:57:00 +00:00
handler Complete todo in SelfSignedCertificate (#9720) 2019-10-28 14:46:59 +01:00
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license Introduce MacOSDnsServerAddressStreamProvider which correctly detect all nameserver configuration on MacOS (#9161) 2019-10-28 15:02:45 +01:00
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resolver-dns-native-macos Fix version for resolver-dns-native-macos introduced by 939e928312 2019-10-28 15:09:30 +01:00
tarball Introduce MacOSDnsServerAddressStreamProvider which correctly detect all nameserver configuration on MacOS (#9161) 2019-10-28 15:02:45 +01:00
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testsuite-http2 Validate pseudo and conditional HTTP/2 headers (#8619) 2019-10-27 16:13:01 +01:00
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transport Externalize lazy execution semantic for EventExecutors (#9587) 2019-10-31 10:01:53 +01:00
transport-blockhound-tests Fix version of transport-blockhound-tests introduced in f4b536edcb 2019-10-25 17:34:25 +02:00
transport-native-epoll [maven-release-plugin] prepare for next development iteration 2019-10-24 12:57:00 +00:00
transport-native-kqueue [maven-release-plugin] prepare for next development iteration 2019-10-24 12:57:00 +00:00
transport-native-unix-common Introduce MacOSDnsServerAddressStreamProvider which correctly detect all nameserver configuration on MacOS (#9161) 2019-10-28 15:02:45 +01:00
transport-native-unix-common-tests [maven-release-plugin] prepare for next development iteration 2019-10-24 12:57:00 +00:00
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.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitattributes Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
.gitignore Add vscode specific files / directory to .gitignore (#9652) 2019-10-10 09:35:08 +04:00
CONTRIBUTING.md Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:09:42 +02:00
LICENSE.txt Relicensed to Apache License v2 2009-08-28 07:15:49 +00:00
mvnw Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
mvnw.cmd Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
NOTICE.txt Introduce MacOSDnsServerAddressStreamProvider which correctly detect all nameserver configuration on MacOS (#9161) 2019-10-28 15:02:45 +01:00
pom.xml Introduce MacOSDnsServerAddressStreamProvider which correctly detect all nameserver configuration on MacOS (#9161) 2019-10-28 15:02:45 +01:00
README.md Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:09:42 +02:00
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.all
  • 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.